{"id":1896,"date":"2025-01-22T14:57:29","date_gmt":"2025-01-22T14:57:29","guid":{"rendered":"https:\/\/improveaquaticlife.se\/thick-shelled-river-mussel\/"},"modified":"2025-06-26T11:58:17","modified_gmt":"2025-06-26T11:58:17","slug":"thick-shelled-river-mussel","status":"publish","type":"page","link":"https:\/\/improveaquaticlife.se\/en\/thick-shelled-river-mussel\/","title":{"rendered":"Thick-shelled river mussel"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_section background_position=&#8221;center center&#8221; css=&#8221;.vc_custom_1738316743497{background-image: url(https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2025\/01\/malarmussla_1924.png?id=1741) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}&#8221; el_name=&#8221;Sidhuvud&#8221;][vc_row][vc_column]<div class=\"wpb_content_element \"><style type=\"text\/css\">#ut_header_69f366f22af22 h1.page-title, #ut_header_69f366f22af22 h1.page-title span { color:#ffffff; }#ut_header_69f366f22af22 h1.page-title { font-size:60px !important;line-height:125% !important;letter-spacing:-0.03em; }#ut_header_69f366f22af22.page-title-module .lead { color:#ffffff; }#ut_header_69f366f22af22.page-title-module .lead p { color:#ffffff; }<\/style><header id=\"ut_header_69f366f22af22\" class=\"page-header page-title-module  ut-no-title-linebreak-mobile ut-no-lead-linebreak-mobile pt-style-7 header-left header-tablet-left header-mobile-center element-with-custom-line-height\"><div class=\"element-with-custom-line-height\" ><h1 data-title=\"Thick-shelled river mussel\"  data-responsive-font=\"page_title\" data-responsive-font-settings=\"{&quot;base-font-size&quot;:&quot;global&quot;,&quot;font-size&quot;:{&quot;desktop_large&quot;:&quot;60&quot;},&quot;base-line-height&quot;:&quot;global&quot;,&quot;line-height&quot;:{&quot;desktop_large&quot;:&quot;125&quot;},&quot;base-letter-spacing&quot;:&quot;global&quot;,&quot;letter-spacing&quot;:{&quot;desktop_large&quot;:&quot;-0.03&quot;}}\" class=\"page-title  \"><span>Thick-shelled river mussel<\/span><\/h1><\/div><\/header><\/div>[\/vc_column][\/vc_row][\/vc_section][vc_section][vc_row][vc_column][vc_column_text]<strong>The thick-shelled mussel (<em>Unio crassus<\/em>) is a freshwater mussel<\/strong> with a thick, elliptical shell that grows to a lenght of 4-7 centimeters. The species mainly lives in running waters with sand and gravel bottoms and is found only in a few areas in eastern Sweden, from Sk\u00e5ne to Dalarna.<\/p>\n<blockquote><p>Thick-shelled mussel can live up to 90 years.<\/p><\/blockquote>\n<p>It feeds by filtering water<span class=\"apple-converted-space\"> and has <\/span>a complex life cycle that includes a parasitic stage in which the larvae, known as glochidia, attach to the gills of host fish where they develop into small mussels. Possible host fish in Sweden include minnows, bullhead and bleak. Once developed, the juvenile mussels then detach from the host fish and live for several years buried in sediment before becoming adults. The thick-shelled river mussel can live up to 90 years.<\/p>\n<p><strong>Critically endangered species<br \/>\n<\/strong>Thick-shelled river mussel is highly threatened, both in Sweden and internationally, due to acidification, eutrophication and physical impacts on its habitat. Human impact such as river regulation, dredging and clearing have destroyed important benthic habitats, and agriculture contributes to deteriorating water quality. In addition, the survival of the species is affected by the decline of host fish populations, resulting a lack of recruitment of juvenile mussels which over timeja, faktiskt b\u00e5de Lukas, Karin och Juilis causes mussel populations to slowly die out.<span class=\"apple-converted-space\"><br \/>\n<\/span><\/p>\n<p><strong>Host fish help<br \/>\n<\/strong>The species is protected by law in Sweden and listed under the EU&#8217;s Species and Habitats Directives, which requires the establishment of Special\u00a0 Conservation Areas, and actions to strengthen populations. One effective method is to catch host fish and place them in tanks with gravid mussels to increase the chance of larvae attaching to the fish gills. The fish are then released back into the river where the larvae can grow into small mussels that drop of and burrow themselves into the bottom. After a few years, they develop into adult mussels and can contribute to reproduction.[\/vc_column_text][\/vc_column][\/vc_row][\/vc_section][vc_section disable_element=&#8221;yes&#8221; css=&#8221;.vc_custom_1737553193343{background-color: #f0fcfa !important;}&#8221; el_name=&#8221;Projekt sammanfattning&#8221;][vc_row][vc_column width=&#8221;1\/2&#8243;]<div  class=\"wpb_content_element   clearfix\"><style type=\"text\/css\">#ut_am_69f366f233213 { opacity: 1; }#ut_am_wrap_69f366f233214 .ut-image-gallery-item-caption-title h3 { letter-spacing: 0em; }#ut_am_wrap_69f366f233214 .ut-gallery-slider-caption { font-weight: bold; }#ut_am_wrap_69f366f233214 { text-align: center; }@media (min-width: 768px) and (max-width: 1024px) { #ut_am_wrap_69f366f233214 { text-align: center !important; } }@media (max-width: 767px) { #ut_am_wrap_69f366f233214 { text-align: center !important; } }<\/style><div id=\"ut_am_wrap_69f366f233214\" class=\"ut-image-gallery-image \"><div id=\"ut_reveal_69f366f233215\"  data-appear-top-offset=\"auto\" class=\"ut-animated-image-item ut-image-gallery-item ut-animation-done \"><a class=\"ut-deactivated-link\" href=\"#\"><div class=\"ut-animated-image-zoom\"><img decoding=\"async\" class=\"ut-lazy skip-lazy ut-animated-image \"  id=\"ut_am_69f366f233213\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1958 1224'%2F%3E\" data-src=\"https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2025\/01\/algras_bad.png\" width=\"1958\" height=\"1224\" alt=\"\"\/><\/div><\/a><\/div><\/div><\/div>[\/vc_column][vc_column width=&#8221;1\/12&#8243;][\/vc_column][vc_column width=&#8221;5\/12&#8243;]<style type=\"text\/css\">#ut_custom_heading69f366f2332bd { color:#008060; }#ut_custom_heading69f366f2332bd { font-size:20px !important;line-height:130% !important; }#ut_custom_heading69f366f2332bd { text-align:left; }@media (min-width: 768px) and (max-width: 1024px) { #ut_custom_heading69f366f2332bd { text-align:left; } }@media (max-width: 767px) { #ut_custom_heading69f366f2332bd { text-align:center; } }<\/style><h3 id=\"ut_custom_heading69f366f2332bd\" data-responsive-font=\"h3\" data-responsive-font-settings=\"{&quot;base-font-size&quot;:&quot;global&quot;,&quot;font-size&quot;:{&quot;desktop_large&quot;:&quot;20&quot;},&quot;base-line-height&quot;:&quot;global&quot;,&quot;line-height&quot;:{&quot;desktop_large&quot;:&quot;130&quot;},&quot;base-letter-spacing&quot;:&quot;global&quot;}\" class=\"ut-custom-heading-module   vc_custom_1737550372356\" ><span class=\"\" >From Halland&#8217;s weather island to the \u00d6resund<\/span><\/h3><div class=\"wpb_content_element  vc_custom_1737551028371\"><style type=\"text\/css\">#ut_header_69f366f23385e h2.section-title { font-size:50px !important;line-height:125% !important;letter-spacing:-0.03em; }<\/style><header id=\"ut_header_69f366f23385e\" class=\"section-header  ut-no-title-linebreak-mobile ut-no-lead-linebreak-mobile pt-style-7 header-left header-tablet-left header-mobile-center element-with-custom-line-height\"><div class=\"element-with-custom-line-height\" ><h2 data-title=\"Eelgrass beds and artificial reefs\"  data-responsive-font=\"section_title\" data-responsive-font-settings=\"{&quot;base-font-size&quot;:&quot;global&quot;,&quot;font-size&quot;:{&quot;desktop_large&quot;:&quot;50&quot;},&quot;base-line-height&quot;:&quot;global&quot;,&quot;line-height&quot;:{&quot;desktop_large&quot;:&quot;125&quot;},&quot;base-letter-spacing&quot;:&quot;global&quot;,&quot;letter-spacing&quot;:{&quot;desktop_large&quot;:&quot;-0.03&quot;}}\" class=\"section-title  \"><span>Eelgrass beds and artificial reefs<\/span><\/h2><\/div><div data-delay=\"0\" class=\"lead \"><p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed in volutpat nunc. Phasellus tincidunt vel metus sed ornare. Quisque blandit laoreet luctus. Pellentesque non dui vel augue ultricies commodo. Curabitur imperdiet ante nibh, ut hendrerit tortor pellentesque lacinia. Vestibulum vulputate rhoncus massa ac viverra. Proin lectus ex, maximus eu consequat eu, aliquet ac arcu. Curabitur et molestie tortor.<\/p>\n<\/div><\/header><\/div>[\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/4&#8243;][ut_number_counter icon_type=&#8221;fontawesome&#8221; icon_font_size=&#8221;30&#8243; counter_font_source=&#8221;google&#8221; counter_google_fonts=&#8221;font_family:Work%20Sans%3A100%2C200%2C300%2Cregular%2C500%2C600%2C700%2C800%2C900%2C100italic%2C200italic%2C300italic%2Citalic%2C500italic%2C600italic%2C700italic%2C800italic%2C900italic|font_style:600%20bold%20regular%3A600%3Anormal&#8221; counter_font_size=&#8221;50&#8243; counter_prefix_font_weight=&#8221;&#8221; counter_suffix_font_weight=&#8221;&#8221; to=&#8221;4500&#8243; desccolor=&#8221;#008060&#8243; counter_color=&#8221;#004c3f&#8221; icon=&#8221;fa-solid fa-seedling&#8221; color=&#8221;#ffd20a&#8221;]Number of eelgrass seedlings planted[\/ut_number_counter][\/vc_column][vc_column width=&#8221;1\/4&#8243;][ut_number_counter speed=&#8221;1850&#8243; icon_type=&#8221;fontawesome&#8221; icon_font_size=&#8221;30&#8243; counter_font_source=&#8221;google&#8221; counter_google_fonts=&#8221;font_family:Work%20Sans%3A100%2C200%2C300%2Cregular%2C500%2C600%2C700%2C800%2C900%2C100italic%2C200italic%2C300italic%2Citalic%2C500italic%2C600italic%2C700italic%2C800italic%2C900italic|font_style:600%20bold%20regular%3A600%3Anormal&#8221; counter_font_size=&#8221;50&#8243; counter_prefix_font_weight=&#8221;&#8221; counter_suffix_font_weight=&#8221;&#8221; to=&#8221;400&#8243; desccolor=&#8221;#008060&#8243; color=&#8221;#ffd20a&#8221; counter_color=&#8221;#004c3f&#8221; icon=&#8221;fa-solid fa-arrow-alt-circle-down&#8221;]Number of hours under the surface[\/ut_number_counter][\/vc_column][vc_column width=&#8221;1\/4&#8243;][ut_number_counter icon_type=&#8221;fontawesome&#8221; icon_font_size=&#8221;30&#8243; counter_font_source=&#8221;google&#8221; counter_google_fonts=&#8221;font_family:Work%20Sans%3A100%2C200%2C300%2Cregular%2C500%2C600%2C700%2C800%2C900%2C100italic%2C200italic%2C300italic%2Citalic%2C500italic%2C600italic%2C700italic%2C800italic%2C900italic|font_style:600%20bold%20regular%3A600%3Anormal&#8221; counter_font_size=&#8221;50&#8243; counter_prefix_font_weight=&#8221;&#8221; counter_suffix_font_weight=&#8221;&#8221; to=&#8221;12&#8243; desccolor=&#8221;#008060&#8243; icon=&#8221;fa-solid fa-braille&#8221; color=&#8221;#ffd20a&#8221; counter_color=&#8221;#004c3f&#8221;]Number of artificial reefs[\/ut_number_counter][\/vc_column][vc_column width=&#8221;1\/4&#8243;][ut_number_counter icon_type=&#8221;fontawesome&#8221; icon_font_size=&#8221;30&#8243; counter_font_source=&#8221;google&#8221; counter_google_fonts=&#8221;font_family:Work%20Sans%3A100%2C200%2C300%2Cregular%2C500%2C600%2C700%2C800%2C900%2C100italic%2C200italic%2C300italic%2Citalic%2C500italic%2C600italic%2C700italic%2C800italic%2C900italic|font_style:600%20bold%20regular%3A600%3Anormal&#8221; counter_font_size=&#8221;50&#8243; counter_prefix_font_weight=&#8221;&#8221; counter_suffix_font_weight=&#8221;&#8221; to=&#8221;130&#8243; desccolor=&#8221;#008060&#8243; color=&#8221;#ffd20a&#8221; counter_color=&#8221;#004c3f&#8221; icon=&#8221;fa-solid fa-download&#8221;]Tons of stones thrown into the sea[\/ut_number_counter][\/vc_column][\/vc_row][\/vc_section][vc_section disable_element=&#8221;yes&#8221; el_name=&#8221;Projektbeskrivning&#8221;][vc_row][vc_column][vc_column_text]<strong>Lorem ipsum dolor<\/strong> sit amet, consectetur adipiscing elit. Sed in volutpat nunc. Phasellus tincidunt vel metus sed ornare. Quisque blandit laoreet luctus. Pellentesque non dui vel augue ultricies commodo. Curabitur imperdiet ante nibh, ut hendrerit tortor pellentesque lacinia. Vestibulum vulputate rhoncus massa ac viverra. Proin lectus ex, maximus eu consequat eu, aliquet ac arcu. Curabitur et molestie tortor.<\/p>\n<p>Mauris eget egestas urna. Donec eget imperdiet justo, vitae consectetur ex. Morbi id nisl dictum, placerat felis eget, tristique erat. Morbi accumsan leo in elementum vehicula. Quisque at varius dolor. Donec scelerisque posuere maximus. Cras molestie lorem vitae ipsum ornare cursus. Donec a neque sit amet ante viverra imperdiet ut volutpat neque.<\/p>\n<blockquote><p>Phasellus et lorem erat. Nulla felis neque, aliquam et arcu id, facilisis aliquet augue.<\/p><\/blockquote>\n<p>Aliquam et porttitor nisi. Nam bibendum orci in tellus aliquet, eu ullamcorper leo varius. Etiam at turpis a dui scelerisque luctus sit amet et massa. Proin eu varius orci. Donec facilisis massa id ipsum tincidunt, eu cursus sem pellentesque. Nam sit amet mauris eu lectus malesuada vestibulum. Aenean sed aliquam tortor, gravida facilisis est. Curabitur ultrices, risus vitae facilisis finibus, dui metus fermentum erat, non luctus sapien dolor ac lorem. Pellentesque luctus lacinia rhoncus. Morbi vel nisi ipsum. Phasellus non ultrices massa, non auctor est.<\/p>\n<p>Nulla convallis fringilla odio vel tristique. Phasellus suscipit nisl nec hendrerit iaculis. Quisque velit urna, pellentesque et tristique sed, malesuada ut lectus. Etiam quam urna, porta ac velit vel, condimentum sagittis libero. Cras aliquam mauris at erat commodo lacinia. Aliquam ornare felis dui. Praesent mattis purus eros, nec rhoncus nisi mattis sed.<\/p>\n<p>Sed non dui sit amet eros blandit lobortis nec nec neque. Aliquam consequat ullamcorper odio, at mattis libero ultricies non. In elementum commodo ultrices. Phasellus tempus sapien semper neque vehicula, vel consectetur enim facilisis. Fusce in lectus eu nisi pretium molestie. Ut nec turpis luctus, semper enim et, porta lacus. Donec in nisl nisl. In nulla ex, eleifend finibus erat ut, tristique maximus nibh. Cras a pellentesque lacus, et auctor lorem. Duis id commodo felis. In lacinia rhoncus metus, et elementum lorem feugiat vehicula. Donec pellentesque ex et ex rutrum, vestibulum dictum metus imperdiet. Curabitur dignissim molestie tincidunt. Fusce pharetra enim id nibh eleifend molestie. Nulla vehicula est in fringilla varius.[\/vc_column_text][\/vc_column][\/vc_row][\/vc_section][vc_section disable_element=&#8221;yes&#8221; el_name=&#8221;Projektf\u00f6rfarande&#8221;][vc_row][vc_column width=&#8221;1\/2&#8243;]<style type=\"text\/css\">#ut_custom_heading69f366f234279 { color:#008060; }#ut_custom_heading69f366f234279 { font-size:20px !important;line-height:130% !important; }#ut_custom_heading69f366f234279 { text-align:left; }@media (min-width: 768px) and (max-width: 1024px) { #ut_custom_heading69f366f234279 { text-align:left; } }@media (max-width: 767px) { #ut_custom_heading69f366f234279 { text-align:center; } }<\/style><h3 id=\"ut_custom_heading69f366f234279\" data-responsive-font=\"h3\" data-responsive-font-settings=\"{&quot;base-font-size&quot;:&quot;global&quot;,&quot;font-size&quot;:{&quot;desktop_large&quot;:&quot;20&quot;},&quot;base-line-height&quot;:&quot;global&quot;,&quot;line-height&quot;:{&quot;desktop_large&quot;:&quot;130&quot;},&quot;base-letter-spacing&quot;:&quot;global&quot;}\" class=\"ut-custom-heading-module   vc_custom_1737546204538\" ><span class=\"\" >Environmental management<\/span><\/h3><div class=\"wpb_content_element \"><style type=\"text\/css\">#ut_header_69f366f2348c1 h2.section-title { font-size:50px !important;line-height:125% !important;letter-spacing:-0.03em; }<\/style><header id=\"ut_header_69f366f2348c1\" class=\"section-header  ut-no-title-linebreak-mobile ut-no-lead-linebreak-mobile pt-style-7 header-left header-tablet-left header-mobile-center element-with-custom-line-height\"><div class=\"element-with-custom-line-height\" ><h2 data-title=\"Planting of eelgrass beds\"  data-responsive-font=\"section_title\" data-responsive-font-settings=\"{&quot;base-font-size&quot;:&quot;global&quot;,&quot;font-size&quot;:{&quot;desktop_large&quot;:&quot;50&quot;},&quot;base-line-height&quot;:&quot;global&quot;,&quot;line-height&quot;:{&quot;desktop_large&quot;:&quot;125&quot;},&quot;base-letter-spacing&quot;:&quot;global&quot;,&quot;letter-spacing&quot;:{&quot;desktop_large&quot;:&quot;-0.03&quot;}}\" class=\"section-title  \"><span>Planting of eelgrass beds<\/span><\/h2><\/div><div data-delay=\"0\" class=\"lead \"><p>During the project period, as many as 20,000 eelgrass seedlings will be planted &#8230;<\/p>\n<\/div><\/header><\/div><div class=\"wpb_content_element \"><style type=\"text\/css\">#ut_pb_69f366f2351cd .ut-skill-name { color: #212326; }#ut_pb_69f366f2351cd .ut-skill-name { margin-bottom: 40px; }#ut_pb_69f366f2351cd .ut-skill-progress-thin { background: #008060; }#ut_pb_69f366f2351cd .ut-skill-tooltip { color: #212326; }<\/style><div id=\"ut_pb_69f366f2351cd\" class=\" ut-progress-bar-module-2 ut-progress-bar-percentage-digits-1\"><h3 class=\"ut-skill-name\">This is how many of the project's eelgrass seedlings have been planted<\/h3><div class=\"ut-skill-bar-thin\"><div class=\"ut-skill-progress-thin ut-skill-active\" data-speed=\"1000\" data-animateonce=\"no\" data-effecttype=\"skillbar\" data-width=\"5\"><span class=\"ut-skill-tooltip\">5%<\/span><\/div><\/div><\/div><\/div><div class=\"wpb_content_element \"><style type=\"text\/css\">#ut_pb_69f366f235218 .ut-skill-name { color: #212326; }#ut_pb_69f366f235218 .ut-skill-name { margin-bottom: 40px; }#ut_pb_69f366f235218 .ut-skill-progress-thin { background: #008060; }#ut_pb_69f366f235218 .ut-skill-tooltip { color: #212326; }<\/style><div id=\"ut_pb_69f366f235218\" class=\" ut-progress-bar-module-2 ut-progress-bar-percentage-digits-2\"><h3 class=\"ut-skill-name\">Here's how...<\/h3><div class=\"ut-skill-bar-thin\"><div class=\"ut-skill-progress-thin ut-skill-active\" data-speed=\"1000\" data-animateonce=\"no\" data-effecttype=\"skillbar\" data-width=\"89\"><span class=\"ut-skill-tooltip\">89%<\/span><\/div><\/div><\/div><\/div>[\/vc_column][vc_column width=&#8221;1\/2&#8243;]<div  class=\"wpb_content_element   clearfix\"><style type=\"text\/css\">#ut_am_69f366f235ba3 { opacity: 1; }#ut_am_wrap_69f366f235ba4 .ut-image-gallery-item-caption-title h3 { letter-spacing: 0em; }#ut_am_wrap_69f366f235ba4 .ut-gallery-slider-caption { font-weight: bold; }#ut_am_wrap_69f366f235ba4 { text-align: center; }@media (min-width: 768px) and (max-width: 1024px) { #ut_am_wrap_69f366f235ba4 { text-align: center !important; } }@media (max-width: 767px) { #ut_am_wrap_69f366f235ba4 { text-align: center !important; } }<\/style><div id=\"ut_am_wrap_69f366f235ba4\" class=\"ut-image-gallery-image \"><div id=\"ut_reveal_69f366f235ba5\"  data-appear-top-offset=\"auto\" class=\"ut-animated-image-item ut-image-gallery-item ut-animation-done \"><a class=\"ut-deactivated-link\" href=\"#\"><div class=\"ut-animated-image-zoom\"><img decoding=\"async\" class=\"ut-lazy skip-lazy ut-animated-image \"  id=\"ut_am_69f366f235ba3\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1958 1224'%2F%3E\" data-src=\"https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2025\/01\/algrasplantor.jpg\" width=\"1958\" height=\"1224\" alt=\"\u00c5lgr\u00e4splantor vajar i vattnet.\"\/><\/div><\/a><\/div><\/div><\/div>[\/vc_column][\/vc_row][\/vc_section][vc_section disable_element=&#8221;yes&#8221; background_position=&#8221;center bottom&#8221; css=&#8221;.vc_custom_1737553245215{background-image: url(https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2021\/06\/tree-bg.jpg?id=853) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}&#8221; el_name=&#8221;F\u00f6re och efter&#8221;][vc_row][vc_column width=&#8221;1\/2&#8243;]<div class=\"wpb_content_element \">\r\n\t\t\t<style type=\"text\/css\">\r\n\r\n\t\t\t\t\r\n\t\t\t\t\r\n\t\t\t\t#ut_cs_69f366f235c3a .ut-comparison-before-label::before,\r\n\t\t\t\t#ut_cs_69f366f235c3a .ut-comparison-after-label::before {\r\n                    color: #004c3f                }\r\n\r\n\t\t\t\t\r\n\t\t\t\t\r\n\t\t\t\t#ut_cs_69f366f235c3a .ut-comparison-before-label::before,\r\n\t\t\t\t#ut_cs_69f366f235c3a .ut-comparison-after-label::before {\r\n                    background: #ffdd40                }\r\n\r\n\t\t\t\t\r\n                \r\n\t\t\t\t\r\n\t\t\t\t#ut_cs_69f366f235c3a .ut-comparison-handle {\r\n                    border-color: #ffdd40;\r\n                }\r\n\r\n\t\t\t\t#ut_cs_69f366f235c3a .ut-comparison-handle .ut-comparison-right-arrow {\r\n                    border-left-color: #ffdd40;\r\n                }\r\n\r\n\t\t\t\t#ut_cs_69f366f235c3a .ut-comparison-handle .ut-comparison-left-arrow {\r\n                    border-right-color: #ffdd40;\r\n                }\r\n\r\n\t\t\t\t#ut_cs_69f366f235c3a .ut-comparison-handle .ut-comparison-down-arrow {\r\n                    border-top-color: #ffdd40;\r\n                }\r\n\r\n\t\t\t\t#ut_cs_69f366f235c3a .ut-comparison-handle .ut-comparison-up-arrow {\r\n                    border-bottom-color: #ffdd40;\r\n                }\r\n\r\n\t\t\t\t#ut_cs_69f366f235c3a .ut-comparison-handle::after,\r\n\t\t\t\t#ut_cs_69f366f235c3a .ut-comparison-handle::before {\r\n                    -webkit-box-shadow: 0 -3px 0 #ffdd40, 0px 0px 12px rgba(51, 51, 51, 0.5);\r\n                    -moz-box-shadow: 0 -3px 0 #ffdd40, 0px 0px 12px rgba(51, 51, 51, 0.5);\r\n                    box-shadow: 0 -3px 0 #ffdd40, 0px 0px 12px rgba(51, 51, 51, 0.5);\r\n                }\r\n\r\n\t\t\t\t\r\n                \r\n                \r\n\t\t\t\t\r\n\t\t\t\t#ut_cs_69f366f235c3a .ut-comparison-handle::after,\r\n\t\t\t\t#ut_cs_69f366f235c3a .ut-comparison-handle::before {\r\n                    background: #ffdd40;\r\n                }\r\n\r\n\t\t\t\t\r\n\t\t\t<\/style>\r\n\r\n\t\t\t<div id=\"ut_cs_69f366f235c3a\" class=\"ut-comparison-container \" data-default-offset-pct=\"0.5\" data-orientation=\"horizontal\" data-move-slider-on-hover=\"\" data-before-label=\"Algsoppa\" data-after-label=\"Levande kust\">\r\n        <img decoding=\"async\" data-adaptive-images=\"{&quot;300&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/algsoppa_1958-300x200.jpg&quot;,&quot;500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/algsoppa_1958-500x333.jpg&quot;,&quot;750&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/algsoppa_1958-750x500.jpg&quot;,&quot;1000&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/algsoppa_1958-1000x667.jpg&quot;,&quot;1500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/algsoppa_1958-1500x1000.jpg&quot;,&quot;2500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/algsoppa_1958-2500x1667.jpg&quot;}\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039; viewBox%3D&#039;0 0 1500 1000&#039;%2F%3E\" width=\"1500\" height=\"1000\" data-src=\"https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2025\/01\/algsoppa_1958-1500x1000.jpg\" data-image-id=\"1232\" class=\"ut-adaptive-image wp-post-image skip-lazy \">\r\n\r\n        \r\n        <img decoding=\"async\" data-adaptive-images=\"{&quot;300&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/algrasang_1958-300x200.jpg&quot;,&quot;500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/algrasang_1958-500x333.jpg&quot;,&quot;750&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/algrasang_1958-750x500.jpg&quot;,&quot;1000&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/algrasang_1958-1000x667.jpg&quot;,&quot;1500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/algrasang_1958-1500x1000.jpg&quot;,&quot;2500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/algrasang_1958-2500x1667.jpg&quot;}\" alt=\"En \u00e5lgr\u00e4s\u00e4ng vajar \u00f6ver en sandbotten.\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039; viewBox%3D&#039;0 0 1500 1000&#039;%2F%3E\" width=\"1500\" height=\"1000\" data-src=\"https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2025\/01\/algrasang_1958-1500x1000.jpg\" data-image-id=\"1231\" class=\"ut-adaptive-image wp-post-image skip-lazy \">\r\n\r\n        <\/div><\/div>[\/vc_column][vc_column width=&#8221;1\/12&#8243;][\/vc_column][vc_column width=&#8221;5\/12&#8243;]<style type=\"text\/css\">#ut_custom_heading69f366f2553cb { color:#ffdd40; }#ut_custom_heading69f366f2553cb { font-size:20px !important;line-height:130% !important; }#ut_custom_heading69f366f2553cb { text-align:left; }@media (min-width: 768px) and (max-width: 1024px) { #ut_custom_heading69f366f2553cb { text-align:left; } }@media (max-width: 767px) { #ut_custom_heading69f366f2553cb { text-align:center; } }<\/style><h3 id=\"ut_custom_heading69f366f2553cb\" data-responsive-font=\"h3\" data-responsive-font-settings=\"{&quot;base-font-size&quot;:&quot;global&quot;,&quot;font-size&quot;:{&quot;desktop_large&quot;:&quot;20&quot;},&quot;base-line-height&quot;:&quot;global&quot;,&quot;line-height&quot;:{&quot;desktop_large&quot;:&quot;130&quot;},&quot;base-letter-spacing&quot;:&quot;global&quot;}\" class=\"ut-custom-heading-module   vc_custom_1737546806856\" ><span class=\"\" >Before and after<\/span><\/h3><div class=\"wpb_content_element  vc_custom_1737546951008\"><style type=\"text\/css\">#ut_header_69f366f25603e h2.section-title, #ut_header_69f366f25603e h2.section-title span { color:#ffffff; }#ut_header_69f366f25603e h2.section-title { font-size:50px !important;line-height:125% !important;letter-spacing:-0.03em; }#ut_header_69f366f25603e .lead { color:#ffffff; }#ut_header_69f366f25603e .lead p { color:#ffffff; }<\/style><header id=\"ut_header_69f366f25603e\" class=\"section-header  ut-no-title-linebreak-mobile ut-no-lead-linebreak-mobile pt-style-7 header-left header-tablet-left header-mobile-center element-with-custom-line-height\"><div class=\"element-with-custom-line-height\" ><h2 data-title=\"A living coast or dead seaweed soup\"  data-responsive-font=\"section_title\" data-responsive-font-settings=\"{&quot;base-font-size&quot;:&quot;global&quot;,&quot;font-size&quot;:{&quot;desktop_large&quot;:&quot;50&quot;},&quot;base-line-height&quot;:&quot;global&quot;,&quot;line-height&quot;:{&quot;desktop_large&quot;:&quot;125&quot;},&quot;base-letter-spacing&quot;:&quot;global&quot;,&quot;letter-spacing&quot;:{&quot;desktop_large&quot;:&quot;-0.03&quot;}}\" class=\"section-title  \"><span>A living coast or dead seaweed soup<\/span><\/h2><\/div><div data-delay=\"0\" class=\"lead \"><p>Eelgrass beds are very important, among other things. Drag the slider to see the difference between &#8230;.<\/p>\n<\/div><\/header><\/div>[\/vc_column][\/vc_row][\/vc_section][vc_section disable_element=&#8221;yes&#8221; el_name=&#8221;Projektnyheter&#8221;][vc_row][vc_column]<style type=\"text\/css\">#ut_custom_heading69f366f256ce6 { color:#008060; }#ut_custom_heading69f366f256ce6 { font-size:20px !important;line-height:130% !important; }#ut_custom_heading69f366f256ce6 { text-align:left; }@media (min-width: 768px) and (max-width: 1024px) { #ut_custom_heading69f366f256ce6 { text-align:left; } }@media (max-width: 767px) { #ut_custom_heading69f366f256ce6 { text-align:center; } }<\/style><h3 id=\"ut_custom_heading69f366f256ce6\" data-responsive-font=\"h3\" data-responsive-font-settings=\"{&quot;base-font-size&quot;:&quot;global&quot;,&quot;font-size&quot;:{&quot;desktop_large&quot;:&quot;20&quot;},&quot;base-line-height&quot;:&quot;global&quot;,&quot;line-height&quot;:{&quot;desktop_large&quot;:&quot;130&quot;},&quot;base-letter-spacing&quot;:&quot;global&quot;}\" class=\"ut-custom-heading-module   vc_custom_1737546064314\" ><span class=\"\" >A nature reserve in the Kattegat<\/span><\/h3><div class=\"wpb_content_element  vc_custom_1737545451423\"><style type=\"text\/css\">#ut_header_69f366f257303 h2.section-title { font-size:50px !important;line-height:125% !important;letter-spacing:-0.03em; }<\/style><header id=\"ut_header_69f366f257303\" class=\"section-header  ut-no-title-linebreak-mobile ut-no-lead-linebreak-mobile pt-style-7 header-left header-tablet-left header-mobile-center element-with-custom-line-height\"><div class=\"element-with-custom-line-height\" ><h2 data-title=\"Latest news from Halland weather island\"  data-responsive-font=\"section_title\" data-responsive-font-settings=\"{&quot;base-font-size&quot;:&quot;global&quot;,&quot;font-size&quot;:{&quot;desktop_large&quot;:&quot;50&quot;},&quot;base-line-height&quot;:&quot;global&quot;,&quot;line-height&quot;:{&quot;desktop_large&quot;:&quot;125&quot;},&quot;base-letter-spacing&quot;:&quot;global&quot;,&quot;letter-spacing&quot;:{&quot;desktop_large&quot;:&quot;-0.03&quot;}}\" class=\"section-title  \"><span>Latest news from Halland weather island<\/span><\/h2><\/div><div data-delay=\"0\" class=\"lead \"><p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam dolor sapien, sollicitudin sed magna at, posuere posuere arcu. Sed eu nibh blandit, tincidunt justo sit amet, interdum quam<\/p>\n<\/div><\/header><\/div>[\/vc_column][vc_column]<style type=\"text\/css\">#ut_blog_grid_69f366f257eaa .ut-blog-grid-article { margin-top: 10px; }<\/style><div id=\"ut_blog_grid_69f366f257eaa\" class=\"ut-blog-grid-module blog\"><div class=\"ut-blog-grid  clearfix ut-blog-grid-date-default\">\r\n<article id=\"post-4850\" class=\"grid-33 tablet-grid-50 mobile-grid-100 ut-blog-grid-article clearfix post-4850 post type-post status-publish format-standard has-post-thumbnail hentry category-latest-news category-miean-en category-nissan-en category-river-pearl-mussel category-trout\">\r\n    \r\n    <div class=\"ut-blog-grid-article-inner\">\r\n    \t\r\n\t\t\t\t\r\n\t\t\t<div class=\"entry-meta entry-meta-top  clearfix\">\r\n\r\n\t\t\t\t\t\t\t\t<span class=\"ut-sticky\"><i class=\"fa fa-thumb-tack\"><\/i><\/span>\r\n\t\t\t\t<span class=\"cat-links\"><i class=\"fa fa-folder-open-o\"><\/i><a href=\"https:\/\/improveaquaticlife.se\/en\/category\/latest-news\/\" data-rel=\"category tag\">Latest news<\/a>, <a href=\"https:\/\/improveaquaticlife.se\/en\/category\/miean-en\/\" data-rel=\"category tag\">River Mie\u00e5n<\/a>, <a href=\"https:\/\/improveaquaticlife.se\/en\/category\/nissan-en\/\" data-rel=\"category tag\">River Nissan<\/a>, <a href=\"https:\/\/improveaquaticlife.se\/en\/category\/river-pearl-mussel\/\" data-rel=\"category tag\">River pearl mussel<\/a>, <a href=\"https:\/\/improveaquaticlife.se\/en\/category\/trout\/\" data-rel=\"category tag\">Trout<\/a><\/span>\r\n\r\n\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t<!-- close entry-meta -->    \r\n\r\n\t\t\t\t\r\n                        \r\n\r\n        <!-- ut-post-thumbnail -->\r\n        <div class=\"ut-post-thumbnail\">     \r\n\r\n            <div class=\"entry-thumbnail\">\r\n\r\n                \r\n                <a title=\"Permanent Link to Planning and studies\" href=\"https:\/\/improveaquaticlife.se\/en\/2026\/02\/03\/planning-and-studies\/\">                \r\n                    \r\n                    <figure class=\"ut-post-thumbnail-caption-wrap\">\r\n\r\n                        \r\n        <img decoding=\"async\" data-adaptive-images=\"{&quot;300&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Jeppeshoka-300x250.png&quot;,&quot;500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Jeppeshoka-500x417.png&quot;,&quot;750&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Jeppeshoka-750x625.png&quot;,&quot;1000&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Jeppeshoka-1000x833.png&quot;,&quot;1500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Jeppeshoka-1500x1250.png&quot;,&quot;2500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Jeppeshoka-2500x2083.png&quot;}\" alt=\"Jeppeshoka kvarn\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039; viewBox%3D&#039;0 0 1500 1250&#039;%2F%3E\" width=\"1500\" height=\"1250\" data-src=\"https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2026\/02\/Jeppeshoka-1500x1250.png\" data-image-id=\"4832\" class=\"ut-adaptive-image wp-post-image skip-lazy \">\r\n\r\n        \r\n                        \r\n                    <\/figure>\r\n                    \r\n                <\/a>  \r\n                \r\n                <a href=\"https:\/\/improveaquaticlife.se\/en\/2026\/02\/\">\r\n                \r\n                    <div class=\"date-format\">\r\n                        <span class=\"day\">03<\/span>\r\n                        <span class=\"month\">Feb 2026<\/span>\r\n                    <\/div>\r\n                \r\n                <\/a>\r\n\r\n            <\/div>                                                                                                                         \r\n\r\n        <\/div><!-- close ut-post-thumbnail -->\r\n\r\n                \r\n                \r\n        <a class=\"ut-blog-link\" title=\"Planning and studies\" href=\"https:\/\/improveaquaticlife.se\/en\/2026\/02\/03\/planning-and-studies\/\" rel=\"bookmark\">     \r\n              \r\n            <div class=\"ut-blog-grid-content-wrap\"> \r\n\r\n                \r\n                    <header class=\"entry-header\">\r\n\r\n                        <h2 data-responsive-font=\"grid_blog_title\" class=\"entry-title\">Planning and studies<\/h2>\r\n\r\n                    <\/header>\r\n                    <!-- close entry-header -->\r\n\r\n                 \r\n\r\n                <!-- entry-content -->\r\n                <div class=\"entry-content clearfix\">\r\n\r\n                    <p>During the winter, not many water restoration measures are carried out in Sweden, instead, new upcoming measures are planned and&hellip;<\/p>\n\r\n                <\/div>\r\n                <!-- entry-content -->\r\n\r\n            <\/div>\r\n        \r\n        <\/a>\r\n        \r\n\t\t\t\t\r\n\t\t\t<div class=\"entry-meta clearfix\">\r\n\r\n                <span class=\"author-links\"><img alt='Avatar photo' src='https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2025\/01\/cropped-ebbe_profilbild-30x30.jpg' srcset='https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2025\/01\/cropped-ebbe_profilbild-60x60.jpg 2x' class='avatar avatar-30 photo round' height='30' width='30' \/><a href=\"https:\/\/improveaquaticlife.se\/en\/author\/ebbe-berglund\/\" title=\"Posts by Ebbe Berglund\" rel=\"author\">Ebbe Berglund<\/a><\/span>\r\n\r\n\t\t\t\t       \r\n\r\n\t\t\t<\/div>\r\n\t\t\r\n\t\t                        \r\n    <\/div>\r\n    \r\n<\/article>\r\n<!-- #post-4850 -->\r\n\r\n<article id=\"post-4738\" class=\"grid-33 tablet-grid-50 mobile-grid-100 ut-blog-grid-article clearfix post-4738 post type-post status-publish format-standard has-post-thumbnail hentry category-latest-news category-gota-river-north\">\r\n    \r\n    <div class=\"ut-blog-grid-article-inner\">\r\n    \t\r\n\t\t\t\t\r\n\t\t\t<div class=\"entry-meta entry-meta-top  clearfix\">\r\n\r\n\t\t\t\t\t\t\t\t<span class=\"ut-sticky\"><i class=\"fa fa-thumb-tack\"><\/i><\/span>\r\n\t\t\t\t<span class=\"cat-links\"><i class=\"fa fa-folder-open-o\"><\/i><a href=\"https:\/\/improveaquaticlife.se\/en\/category\/latest-news\/\" data-rel=\"category tag\">Latest news<\/a>, <a href=\"https:\/\/improveaquaticlife.se\/en\/category\/gota-river-north\/\" data-rel=\"category tag\">River G\u00f6ta \u00e4lv north<\/a><\/span>\r\n\r\n\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t<!-- close entry-meta -->    \r\n\r\n\t\t\t\t\r\n                        \r\n\r\n        <!-- ut-post-thumbnail -->\r\n        <div class=\"ut-post-thumbnail\">     \r\n\r\n            <div class=\"entry-thumbnail\">\r\n\r\n                \r\n                <a title=\"Permanent Link to Measures planned to protect aquatic life in Billan and Likan\" href=\"https:\/\/improveaquaticlife.se\/en\/2026\/01\/19\/measures-planned-to-protect-aquatic-life-in-billan-and-likan\/\">                \r\n                    \r\n                    <figure class=\"ut-post-thumbnail-caption-wrap\">\r\n\r\n                        \r\n        <img decoding=\"async\" data-adaptive-images=\"{&quot;300&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/Likan_utvald-300x250.jpg&quot;,&quot;500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/Likan_utvald-500x417.jpg&quot;,&quot;750&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/Likan_utvald-750x625.jpg&quot;,&quot;1000&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/Likan_utvald-1000x833.jpg&quot;,&quot;1500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/Likan_utvald-1500x1250.jpg&quot;,&quot;2500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/Likan_utvald-2500x2083.jpg&quot;}\" alt=\"Likan ARO. M\u00e5nga och l\u00e5nga diken som inte gynnar vare sig milj\u00f6 eller skogsproduktion.\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039; viewBox%3D&#039;0 0 1500 1250&#039;%2F%3E\" width=\"1500\" height=\"1250\" data-src=\"https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2026\/01\/Likan_utvald-1500x1250.jpg\" data-image-id=\"4719\" class=\"ut-adaptive-image wp-post-image skip-lazy \">\r\n\r\n        \r\n                        \r\n                            <figcaption class=\"ut-post-thumbnail-caption\">Likan ARO. M\u00e5nga och l\u00e5nga diken som inte gynnar vare sig milj\u00f6 eller skogsproduktion.<\/figcaption>\r\n\r\n                        \r\n                    <\/figure>\r\n                    \r\n                <\/a>  \r\n                \r\n                <a href=\"https:\/\/improveaquaticlife.se\/en\/2026\/01\/\">\r\n                \r\n                    <div class=\"date-format\">\r\n                        <span class=\"day\">19<\/span>\r\n                        <span class=\"month\">Jan 2026<\/span>\r\n                    <\/div>\r\n                \r\n                <\/a>\r\n\r\n            <\/div>                                                                                                                         \r\n\r\n        <\/div><!-- close ut-post-thumbnail -->\r\n\r\n                \r\n                \r\n        <a class=\"ut-blog-link\" title=\"Measures planned to protect aquatic life in Billan and Likan\" href=\"https:\/\/improveaquaticlife.se\/en\/2026\/01\/19\/measures-planned-to-protect-aquatic-life-in-billan-and-likan\/\" rel=\"bookmark\">     \r\n              \r\n            <div class=\"ut-blog-grid-content-wrap\"> \r\n\r\n                \r\n                    <header class=\"entry-header\">\r\n\r\n                        <h2 data-responsive-font=\"grid_blog_title\" class=\"entry-title\">Measures planned to protect aquatic life in Billan and Likan<\/h2>\r\n\r\n                    <\/header>\r\n                    <!-- close entry-header -->\r\n\r\n                 \r\n\r\n                <!-- entry-content -->\r\n                <div class=\"entry-content clearfix\">\r\n\r\n                    <p>Within Improve Aquatic LIFE, the County Administrative Board of V\u00e4rmland is working to reduce the risk of erosion and sediment&hellip;<\/p>\n\r\n                <\/div>\r\n                <!-- entry-content -->\r\n\r\n            <\/div>\r\n        \r\n        <\/a>\r\n        \r\n\t\t\t\t\r\n\t\t\t<div class=\"entry-meta clearfix\">\r\n\r\n                <span class=\"author-links\"><img alt='' src='https:\/\/improveaquaticlife.se\/wp-content\/litespeed\/avatar\/9d1f2104f36b91dc5c24f3af959e2ff0.jpg?ver=1776984334' srcset='https:\/\/improveaquaticlife.se\/wp-content\/litespeed\/avatar\/dba5c8d7d355db8bcdaa9b9a8c1435e6.jpg?ver=1776984334 2x' class='avatar avatar-30 photo round' height='30' width='30' \/><a href=\"https:\/\/improveaquaticlife.se\/en\/author\/vibeke-liras\/\" title=\"Posts by Vibeke Lir\u00e5s\" rel=\"author\">Vibeke Lir\u00e5s<\/a><\/span>\r\n\r\n\t\t\t\t       \r\n\r\n\t\t\t<\/div>\r\n\t\t\r\n\t\t                        \r\n    <\/div>\r\n    \r\n<\/article>\r\n<!-- #post-4738 -->\r\n\r\n<article id=\"post-4685\" class=\"grid-33 tablet-grid-50 mobile-grid-100 ut-blog-grid-article clearfix post-4685 post type-post status-publish format-standard has-post-thumbnail hentry category-latest-news category-river-atran category-salmon\">\r\n    \r\n    <div class=\"ut-blog-grid-article-inner\">\r\n    \t\r\n\t\t\t\t\r\n\t\t\t<div class=\"entry-meta entry-meta-top  clearfix\">\r\n\r\n\t\t\t\t\t\t\t\t<span class=\"ut-sticky\"><i class=\"fa fa-thumb-tack\"><\/i><\/span>\r\n\t\t\t\t<span class=\"cat-links\"><i class=\"fa fa-folder-open-o\"><\/i><a href=\"https:\/\/improveaquaticlife.se\/en\/category\/latest-news\/\" data-rel=\"category tag\">Latest news<\/a>, <a href=\"https:\/\/improveaquaticlife.se\/en\/category\/river-atran\/\" data-rel=\"category tag\">River \u00c4tran<\/a>, <a href=\"https:\/\/improveaquaticlife.se\/en\/category\/salmon\/\" data-rel=\"category tag\">Salmon<\/a><\/span>\r\n\r\n\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t<!-- close entry-meta -->    \r\n\r\n\t\t\t\t\r\n                        \r\n\r\n        <!-- ut-post-thumbnail -->\r\n        <div class=\"ut-post-thumbnail\">     \r\n\r\n            <div class=\"entry-thumbnail\">\r\n\r\n                \r\n                <a title=\"Permanent Link to Historic moment &#8211; salmon have returned to Okome\" href=\"https:\/\/improveaquaticlife.se\/en\/2025\/11\/18\/historic-moment-salmon-have-returned-to-okome\/\">                \r\n                    \r\n                    <figure class=\"ut-post-thumbnail-caption-wrap\">\r\n\r\n                        \r\n        <img decoding=\"async\" data-adaptive-images=\"{&quot;300&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/lax_improve-300x250.png&quot;,&quot;500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/lax_improve-500x417.png&quot;,&quot;750&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/lax_improve-750x625.png&quot;,&quot;1000&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/lax_improve-1000x833.png&quot;,&quot;1500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/lax_improve-1500x1250.png&quot;,&quot;2500&quot;:&quot;https:\\\/\\\/improveaquaticlife.se\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/lax_improve-2500x2083.png&quot;}\" alt=\"En ung lax. Foto: Mathias Arnham.\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039; viewBox%3D&#039;0 0 1500 1250&#039;%2F%3E\" width=\"1500\" height=\"1250\" data-src=\"https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2025\/01\/lax_improve-1500x1250.png\" data-image-id=\"2314\" class=\"ut-adaptive-image wp-post-image skip-lazy \">\r\n\r\n        \r\n                        \r\n                            <figcaption class=\"ut-post-thumbnail-caption\">En ung lax. Foto: Mathias Arnham.<\/figcaption>\r\n\r\n                        \r\n                    <\/figure>\r\n                    \r\n                <\/a>  \r\n                \r\n                <a href=\"https:\/\/improveaquaticlife.se\/en\/2025\/11\/\">\r\n                \r\n                    <div class=\"date-format\">\r\n                        <span class=\"day\">18<\/span>\r\n                        <span class=\"month\">Nov 2025<\/span>\r\n                    <\/div>\r\n                \r\n                <\/a>\r\n\r\n            <\/div>                                                                                                                         \r\n\r\n        <\/div><!-- close ut-post-thumbnail -->\r\n\r\n                \r\n                \r\n        <a class=\"ut-blog-link\" title=\"Historic moment &#8211; salmon have returned to Okome\" href=\"https:\/\/improveaquaticlife.se\/en\/2025\/11\/18\/historic-moment-salmon-have-returned-to-okome\/\" rel=\"bookmark\">     \r\n              \r\n            <div class=\"ut-blog-grid-content-wrap\"> \r\n\r\n                \r\n                    <header class=\"entry-header\">\r\n\r\n                        <h2 data-responsive-font=\"grid_blog_title\" class=\"entry-title\">Historic moment &#8211; salmon have returned to Okome<\/h2>\r\n\r\n                    <\/header>\r\n                    <!-- close entry-header -->\r\n\r\n                 \r\n\r\n                <!-- entry-content -->\r\n                <div class=\"entry-content clearfix\">\r\n\r\n                    <p>When the water was once again allowed to flow freely in the Stock\u00e5n river, it was not long before life&hellip;<\/p>\n\r\n                <\/div>\r\n                <!-- entry-content -->\r\n\r\n            <\/div>\r\n        \r\n        <\/a>\r\n        \r\n\t\t\t\t\r\n\t\t\t<div class=\"entry-meta clearfix\">\r\n\r\n                <span class=\"author-links\"><img alt='' src='https:\/\/improveaquaticlife.se\/wp-content\/litespeed\/avatar\/c6f76664a5d7a0105db5a4d4bb388767.jpg?ver=1776954520' srcset='https:\/\/improveaquaticlife.se\/wp-content\/litespeed\/avatar\/189aca61f630bafc6c88ad5622cdea86.jpg?ver=1776954520 2x' class='avatar avatar-30 photo round' height='30' width='30' \/><a href=\"https:\/\/improveaquaticlife.se\/en\/author\/nicka-hellenberg\/\" title=\"Posts by Nicka Hellenberg\" rel=\"author\">Nicka Hellenberg<\/a><\/span>\r\n\r\n\t\t\t\t       \r\n\r\n\t\t\t<\/div>\r\n\t\t\r\n\t\t                        \r\n    <\/div>\r\n    \r\n<\/article>\r\n<!-- #post-4685 -->\r\n<\/div><\/div><style type=\"text\/css\">#bklyn_btn_69f366f296803 .bklyn-btn { color:#004c3f !important; border-radius:50px !important; background-color:#ffdd40 !important; }#bklyn_btn_69f366f296803 .bklyn-btn:hover{ color:#004c3f !important; background-color:#ffd61f !important; }#bklyn_btn_69f366f296803 .bklyn-btn:focus{ color:#004c3f !important; background-color:#ffd61f !important; }#bklyn_btn_69f366f296803 .bklyn-btn:active { color:#004c3f !important; background-color:#ffd61f !important; }#bklyn_btn_69f366f296803 a.bklyn-btn { font-weight:bold !important; }#bklyn_btn_69f366f296803.bklyn-btn-header a.bklyn-btn { font-weight:bold !important; }#bklyn_btn_69f366f296803.bklyn-btn-header a.bklyn-btn span { font-weight:bold !important; }#bklyn_btn_69f366f296803 a.bklyn-btn { font-family:inherit !important; }<\/style><div id=\"bklyn_btn_69f366f296803\" class=\"bklyn-btn-holder  bklyn-btn-left bklyn-btn-tablet-left bklyn-btn-mobile-center\"><a title=\"What&#039;s new\"   href=\"https:\/\/improveaquaticlife.se\/en\/whats-new\/\" target=\"_self\" class=\"bklyn-btn  bklyn-btn-normal\" ><span class=\"ut-btn-text\">READ MORE NEWS<\/span><\/a><\/div>[\/vc_column][\/vc_row][\/vc_section]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_section background_position=&#8221;center center&#8221; css=&#8221;.vc_custom_1738316743497{background-image: url(https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2025\/01\/malarmussla_1924.png?id=1741) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}&#8221; el_name=&#8221;Sidhuvud&#8221;][vc_row][vc_column][\/vc_column][\/vc_row][\/vc_section][vc_section][vc_row][vc_column][vc_column_text]The thick-shelled mussel (Unio crassus) is a freshwater mussel with a thick, elliptical shell that grows to a lenght of 4-7 centimeters. The species mainly lives in running waters with sand and gravel bottoms and is found only in a few areas in [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1896","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v26.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Thick-shelled river mussel - Improve Aquatic Life<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/improveaquaticlife.se\/en\/thick-shelled-river-mussel\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Thick-shelled river mussel\" \/>\n<meta property=\"og:description\" content=\"[vc_section background_position=&#8221;center center&#8221; css=&#8221;.vc_custom_1738316743497{background-image: url(https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2025\/01\/malarmussla_1924.png?id=1741) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}&#8221; el_name=&#8221;Sidhuvud&#8221;][vc_row][vc_column][\/vc_column][\/vc_row][\/vc_section][vc_section][vc_row][vc_column][vc_column_text]The thick-shelled mussel (Unio crassus) is a freshwater mussel with a thick, elliptical shell that grows to a lenght of 4-7 centimeters. The species mainly lives in running waters with sand and gravel bottoms and is found only in a few areas in [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/improveaquaticlife.se\/en\/thick-shelled-river-mussel\/\" \/>\n<meta property=\"og:site_name\" content=\"Improve Aquatic Life\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-26T11:58:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2025\/01\/webbplatsbild_1200px.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/improveaquaticlife.se\/en\/thick-shelled-river-mussel\/\",\"url\":\"https:\/\/improveaquaticlife.se\/en\/thick-shelled-river-mussel\/\",\"name\":\"Thick-shelled river mussel - Improve Aquatic Life\",\"isPartOf\":{\"@id\":\"https:\/\/improveaquaticlife.se\/en\/#website\"},\"datePublished\":\"2025-01-22T14:57:29+00:00\",\"dateModified\":\"2025-06-26T11:58:17+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/improveaquaticlife.se\/en\/thick-shelled-river-mussel\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/improveaquaticlife.se\/en\/thick-shelled-river-mussel\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/improveaquaticlife.se\/en\/thick-shelled-river-mussel\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Hem\",\"item\":\"https:\/\/improveaquaticlife.se\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Thick-shelled river mussel\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/improveaquaticlife.se\/en\/#website\",\"url\":\"https:\/\/improveaquaticlife.se\/en\/\",\"name\":\"Improve Aquatic Life\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/improveaquaticlife.se\/en\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/improveaquaticlife.se\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/improveaquaticlife.se\/en\/#organization\",\"name\":\"Improve Aquatic Life\",\"url\":\"https:\/\/improveaquaticlife.se\/en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/improveaquaticlife.se\/en\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2025\/01\/new_logo_improve_120.png\",\"contentUrl\":\"https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2025\/01\/new_logo_improve_120.png\",\"width\":388,\"height\":120,\"caption\":\"Improve Aquatic Life\"},\"image\":{\"@id\":\"https:\/\/improveaquaticlife.se\/en\/#\/schema\/logo\/image\/\"},\"description\":\"Improve Aquatic LIFE \u00e4r namnet p\u00e5 Europas st\u00f6rsta vattenv\u00e5rdsprojekt med syfte att restaurera vattenmilj\u00f6er i v\u00e5tmarker, sj\u00f6ar vattendrag och kustvatten i nio olika l\u00e4n, i s\u00f6dra Sverige. Improve Aquatic LIFE finansieras till st\u00f6rsta delen av EU samt av Havs- och vattenmyndigheten, Naturv\u00e5rdsverket och \u00f6vriga projektpartners.\",\"email\":\"info@improveaquaticlife.se\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Thick-shelled river mussel - Improve Aquatic Life","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/improveaquaticlife.se\/en\/thick-shelled-river-mussel\/","og_locale":"en_US","og_type":"article","og_title":"Thick-shelled river mussel","og_description":"[vc_section background_position=&#8221;center center&#8221; css=&#8221;.vc_custom_1738316743497{background-image: url(https:\/\/improveaquaticlife.se\/wp-content\/uploads\/2025\/01\/malarmussla_1924.png?id=1741) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}&#8221; el_name=&#8221;Sidhuvud&#8221;][vc_row][vc_column][\/vc_column][\/vc_row][\/vc_section][vc_section][vc_row][vc_column][vc_column_text]The thick-shelled mussel (Unio crassus) is a freshwater mussel with a thick, elliptical shell that grows to a lenght of 4-7 centimeters. 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