{"id":7686,"date":"2024-12-06T12:07:41","date_gmt":"2024-12-06T12:07:41","guid":{"rendered":"https:\/\/marinesites.nl\/?p=7686"},"modified":"2024-12-06T12:07:41","modified_gmt":"2024-12-06T12:07:41","slug":"trophic-structure-and-resource-utilization-of-the-coastal-fish-community-in-the-western-wadden-sea-evidence-from-stable-isotope-data-analysis","status":"publish","type":"post","link":"https:\/\/marinesites.nl\/?p=7686","title":{"rendered":"Trophic structure and resource utilization of the coastal fish community in the western Wadden Sea: evidence from stable isotope data analysis"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Find this article in link below:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.researchgate.net\/publication\/355669023_Trophic_structure_and_resource_utilization_of_the_coastal_fish_community_in_the_western_Wadden_Sea_evidence_from_stable_isotope_data_analysis\" data-type=\"link\" data-id=\"https:\/\/www.researchgate.net\/publication\/355669023_Trophic_structure_and_resource_utilization_of_the_coastal_fish_community_in_the_western_Wadden_Sea_evidence_from_stable_isotope_data_analysis\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>ResearchGate article<\/strong><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>We studied the trophic structure of the western Wadden Sea fish community through stable isotope analysis (\u03b413C and \u03b415N) of 1658 samples from 57 fish species collected between<br \/>\n2012 and 2016. Stable isotope values differed between species but did not vary between years or<br \/>\nseasons, and only for some species with fish size. Stable isotope values were not different between<br \/>\nimmigrating (spring) and emigrating (autumn) fish, suggesting a similar trophic niche of the various<br \/>\nfish species in the coastal zone and inside the Wadden Sea. For the majority of species, average<br \/>\n\u03b413C values were within the range of \u221212 to \u221220.5\u2030, showing that both (marine) pelagic and<br \/>\nbenthic primary producers were at the base of the food web. Average \u03b415N values varied among<br \/>\nspecies from 13\u221218\u2030, resulting in estimated trophic positions (TPs) of 2.1\u22125.5 with the majority<br \/>\nbetween 2.2 and 3.5. Thick-lipped grey mullet Chelon labrosus, golden grey mullet C. aurata,<br \/>\ngreater pipefish Syngnathus acus and pilchard Sardina pilchardus had the lowest TP (2.2\u22122.4).<br \/>\nAmong the common species (>10 observations), the highest TP values (3.4\u22123.5) were found for<br \/>\ntwaite shad Alosa fallax, smelt Osmerus eperlanus, bull-rout Myoxocephalus scorpius, bass Di cen &#8211;<br \/>\ntrarchus labrax and cod Gadus morhua. For all species, estimated TPs based on isotope values<br \/>\nwere lower than those based on stomach content composition (2.0\u22124.7), which could be explained<br \/>\nby species-specific differences in trophic fractionation or by underestimation of the contribution of<br \/>\nsmaller prey species in the stomach content analysis. The trophic niche space of benthopelagic<br \/>\nspecies was the smallest and overlapped with that of the pelagic and benthic species. In terms of<br \/>\narea use, trophic niche space was smaller for juvenile marine migrant species (nursery-type species)<br \/>\nand overlapped with that of the (near-)resident species and marine seasonal visitors. Potentially,<br \/>\ntrophic competition is highest for the functional group of benthopelagic species and the<br \/>\nguild of juvenile marine migrant species (nursery-type species).<\/p>\n","protected":false},"author":1,"featured_media":7147,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[13],"tags":[],"class_list":["post-7686","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science"],"_links":{"self":[{"href":"https:\/\/marinesites.nl\/index.php?rest_route=\/wp\/v2\/posts\/7686","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/marinesites.nl\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/marinesites.nl\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/marinesites.nl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/marinesites.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7686"}],"version-history":[{"count":2,"href":"https:\/\/marinesites.nl\/index.php?rest_route=\/wp\/v2\/posts\/7686\/revisions"}],"predecessor-version":[{"id":7688,"href":"https:\/\/marinesites.nl\/index.php?rest_route=\/wp\/v2\/posts\/7686\/revisions\/7688"}],"wp:attachment":[{"href":"https:\/\/marinesites.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7686"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/marinesites.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7686"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/marinesites.nl\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7686"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}