Will global warming affect the functional need for essential fatty acids in juvenile sea bass (Dicentrarchus labrax)? A first overview of the consequences of lower availability of nutritional fatty acids on growth performance

Global climate changes have led to a depletion in omega-3 polyunsaturated fatty acids (n-3 PUFA) in marine phytoplankton that—with food web transfers—could negatively impact fish performance. The aim of this study was to assess the effect of a reduction in the dietary availability of n-3 PUFA on gro...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Marine biology 2018-09, Vol.165 (9), p.1-15, Article 143
Hauptverfasser: Gourtay, Clémence, Chabot, Denis, Audet, Céline, Le Delliou, Hervé, Quazuguel, Patrick, Claireaux, Guy, Zambonino-Infante, José-Luis
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 15
container_issue 9
container_start_page 1
container_title Marine biology
container_volume 165
creator Gourtay, Clémence
Chabot, Denis
Audet, Céline
Le Delliou, Hervé
Quazuguel, Patrick
Claireaux, Guy
Zambonino-Infante, José-Luis
description Global climate changes have led to a depletion in omega-3 polyunsaturated fatty acids (n-3 PUFA) in marine phytoplankton that—with food web transfers—could negatively impact fish performance. The aim of this study was to assess the effect of a reduction in the dietary availability of n-3 PUFA on growth performance, organ allometry, and fatty acid composition in juvenile European sea bass ( Dicentrarchus labrax ) raised at two different temperatures: 15 °C (natural conditions) and 20 °C (global warming scenario). Fish were fed for 5 months with two isoenergetic and isoproteic diets: a reference diet (RD; 1.65% n-3 PUFA on a dry matter basis, DM) used as a proxy of trophic networks where n-3 PUFA were plentiful, and a lower n-3 PUFA diet (LD; 0.73% n-3 PUFA on DM) designed to mimic the expected decrease in n-3 PUFA sources resulting from global climate changes. Results showed decreasing growth rates and slight changes in the muscle polar lipid profile in LD-fed sea bass juveniles, whereas neutral lipids were more affected over the long term. The relative masses of the heart and gastrointestinal system were higher at 20 °C, while liver mass was higher at 15 °C in LD-fed juveniles. However, the mesenteric fat of RD-fed juveniles was higher at 15 °C. Altogether the results suggest that sea bass juveniles are able to implement physiological mechanisms to cope with a decrease in dietary n-3 PUFA and are able to improve growth at the higher temperature, even with a decreased availability of n-3 PUFA. The temperature-driven increase in growth is also observed under the restricted n-3 PUFA diet, and this is accompanied by significant effects on organ allometry and FA profiles. This may indicate the presence of some metabolic costs that remain to be evaluated, but which illustrate that the combination of warming temperatures and n-3 PUFA depletion has significant effects on life history traits.
doi_str_mv 10.1007/s00227-018-3402-3
format Article
fullrecord <record><control><sourceid>gale_hal_p</sourceid><recordid>TN_cdi_hal_primary_oai_HAL_hal_02626266v1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A550522447</galeid><sourcerecordid>A550522447</sourcerecordid><originalsourceid>FETCH-LOGICAL-c498t-7884628ce985c731d3e7ee6c7288c08b2849bfebc3c776ca67ac89ed0b0ab01b3</originalsourceid><addsrcrecordid>eNp1kkuP0zAQxyMEEmXhA3CzxIU9ZPEjiZ0TqpbHIlXiAuJoTdxx6sq1i5207Mflm-DSFQvSojlYnvn952FPVb1k9IpRKt9kSjmXNWWqFg3ltXhULVgjeM1kLx5XixJua8E6_rR6lvOWlrvkYlH9_Oa8J6OPA3hyhLRzYSRgLZqJTBskdg5mcjGUaEBcExsTwZwxTK64LEzTLQHj1pm4QLbzAYPzSDICGSBn8vqdM4VNkMxmzsTDkODH5VuyJNalPJF4wHRweCTR_i5nYsj4fcZgMJ98Ph4xETiAK1LnXalWvGGekrvr6u8WYiBjisdpQ_aYSqc7KHmeV08s-Iwv7s6L6uuH91-ub-rV54-frper2jS9mmqpVNNxZbBXrZGCrQVKxM5IrpShauCq6QeLgxFGys5AJ8GoHtd0oDBQNoiL6vKcdwNe75PbQbrVEZy-Wa70yUd5d7LuwAr76szuUyzT5klv45zKOFlzqnqqWtXRe2oEj9oFG8tDmp3LRi_blracN40sVP0ANWLABD4GtOVD_uWvHuCLrXHnzIMCdhaYFHNOaP9Mx6g-LZ8-L58uy6dPy6dF0fCzJhc2jJjuB_y_6BfIht9o</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2089085860</pqid></control><display><type>article</type><title>Will global warming affect the functional need for essential fatty acids in juvenile sea bass (Dicentrarchus labrax)? A first overview of the consequences of lower availability of nutritional fatty acids on growth performance</title><source>SpringerLink Journals - AutoHoldings</source><creator>Gourtay, Clémence ; Chabot, Denis ; Audet, Céline ; Le Delliou, Hervé ; Quazuguel, Patrick ; Claireaux, Guy ; Zambonino-Infante, José-Luis</creator><creatorcontrib>Gourtay, Clémence ; Chabot, Denis ; Audet, Céline ; Le Delliou, Hervé ; Quazuguel, Patrick ; Claireaux, Guy ; Zambonino-Infante, José-Luis</creatorcontrib><description>Global climate changes have led to a depletion in omega-3 polyunsaturated fatty acids (n-3 PUFA) in marine phytoplankton that—with food web transfers—could negatively impact fish performance. The aim of this study was to assess the effect of a reduction in the dietary availability of n-3 PUFA on growth performance, organ allometry, and fatty acid composition in juvenile European sea bass ( Dicentrarchus labrax ) raised at two different temperatures: 15 °C (natural conditions) and 20 °C (global warming scenario). Fish were fed for 5 months with two isoenergetic and isoproteic diets: a reference diet (RD; 1.65% n-3 PUFA on a dry matter basis, DM) used as a proxy of trophic networks where n-3 PUFA were plentiful, and a lower n-3 PUFA diet (LD; 0.73% n-3 PUFA on DM) designed to mimic the expected decrease in n-3 PUFA sources resulting from global climate changes. Results showed decreasing growth rates and slight changes in the muscle polar lipid profile in LD-fed sea bass juveniles, whereas neutral lipids were more affected over the long term. The relative masses of the heart and gastrointestinal system were higher at 20 °C, while liver mass was higher at 15 °C in LD-fed juveniles. However, the mesenteric fat of RD-fed juveniles was higher at 15 °C. Altogether the results suggest that sea bass juveniles are able to implement physiological mechanisms to cope with a decrease in dietary n-3 PUFA and are able to improve growth at the higher temperature, even with a decreased availability of n-3 PUFA. The temperature-driven increase in growth is also observed under the restricted n-3 PUFA diet, and this is accompanied by significant effects on organ allometry and FA profiles. This may indicate the presence of some metabolic costs that remain to be evaluated, but which illustrate that the combination of warming temperatures and n-3 PUFA depletion has significant effects on life history traits.</description><identifier>ISSN: 0025-3162</identifier><identifier>EISSN: 1432-1793</identifier><identifier>DOI: 10.1007/s00227-018-3402-3</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Allometry ; Availability ; Biodiversity and Ecology ; Biomedical and Life Sciences ; Climate ; Climate change ; Depletion ; Dicentrarchus labrax ; Diet ; Dry matter ; Environmental Sciences ; European sea bass ; Fatty acid composition ; Fatty acids ; Fish ; Fish oils ; Food chains ; Food webs ; Freshwater &amp; Marine Ecology ; Gastrointestinal system ; Global climate ; Global warming ; Growth ; Heart ; High temperature ; Juveniles ; Life history ; Life Sciences ; Lipids ; Liver ; Marine &amp; Freshwater Sciences ; Marine biology ; Marine fishes ; Microbiology ; Muscles ; Nutrient deficiency ; Oceanography ; Original Paper ; Phytoplankton ; Polyunsaturated fatty acids ; Profiles ; Sea bass ; Temperature ; Temperature effects ; Unsaturated fatty acids ; Zoological research ; Zoology</subject><ispartof>Marine biology, 2018-09, Vol.165 (9), p.1-15, Article 143</ispartof><rights>Springer-Verlag GmbH Germany, part of Springer Nature 2018</rights><rights>COPYRIGHT 2018 Springer</rights><rights>Marine Biology is a copyright of Springer, (2018). All Rights Reserved.</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c498t-7884628ce985c731d3e7ee6c7288c08b2849bfebc3c776ca67ac89ed0b0ab01b3</citedby><cites>FETCH-LOGICAL-c498t-7884628ce985c731d3e7ee6c7288c08b2849bfebc3c776ca67ac89ed0b0ab01b3</cites><orcidid>0000-0003-3366-210X ; 0000-0001-8436-4773 ; 0000-0003-1340-6221 ; 0000-0002-4199-0915 ; 0000-0002-0347-0847</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00227-018-3402-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00227-018-3402-3$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>230,314,780,784,885,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttps://hal.univ-brest.fr/hal-02626266$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Gourtay, Clémence</creatorcontrib><creatorcontrib>Chabot, Denis</creatorcontrib><creatorcontrib>Audet, Céline</creatorcontrib><creatorcontrib>Le Delliou, Hervé</creatorcontrib><creatorcontrib>Quazuguel, Patrick</creatorcontrib><creatorcontrib>Claireaux, Guy</creatorcontrib><creatorcontrib>Zambonino-Infante, José-Luis</creatorcontrib><title>Will global warming affect the functional need for essential fatty acids in juvenile sea bass (Dicentrarchus labrax)? A first overview of the consequences of lower availability of nutritional fatty acids on growth performance</title><title>Marine biology</title><addtitle>Mar Biol</addtitle><description>Global climate changes have led to a depletion in omega-3 polyunsaturated fatty acids (n-3 PUFA) in marine phytoplankton that—with food web transfers—could negatively impact fish performance. The aim of this study was to assess the effect of a reduction in the dietary availability of n-3 PUFA on growth performance, organ allometry, and fatty acid composition in juvenile European sea bass ( Dicentrarchus labrax ) raised at two different temperatures: 15 °C (natural conditions) and 20 °C (global warming scenario). Fish were fed for 5 months with two isoenergetic and isoproteic diets: a reference diet (RD; 1.65% n-3 PUFA on a dry matter basis, DM) used as a proxy of trophic networks where n-3 PUFA were plentiful, and a lower n-3 PUFA diet (LD; 0.73% n-3 PUFA on DM) designed to mimic the expected decrease in n-3 PUFA sources resulting from global climate changes. Results showed decreasing growth rates and slight changes in the muscle polar lipid profile in LD-fed sea bass juveniles, whereas neutral lipids were more affected over the long term. The relative masses of the heart and gastrointestinal system were higher at 20 °C, while liver mass was higher at 15 °C in LD-fed juveniles. However, the mesenteric fat of RD-fed juveniles was higher at 15 °C. Altogether the results suggest that sea bass juveniles are able to implement physiological mechanisms to cope with a decrease in dietary n-3 PUFA and are able to improve growth at the higher temperature, even with a decreased availability of n-3 PUFA. The temperature-driven increase in growth is also observed under the restricted n-3 PUFA diet, and this is accompanied by significant effects on organ allometry and FA profiles. This may indicate the presence of some metabolic costs that remain to be evaluated, but which illustrate that the combination of warming temperatures and n-3 PUFA depletion has significant effects on life history traits.</description><subject>Allometry</subject><subject>Availability</subject><subject>Biodiversity and Ecology</subject><subject>Biomedical and Life Sciences</subject><subject>Climate</subject><subject>Climate change</subject><subject>Depletion</subject><subject>Dicentrarchus labrax</subject><subject>Diet</subject><subject>Dry matter</subject><subject>Environmental Sciences</subject><subject>European sea bass</subject><subject>Fatty acid composition</subject><subject>Fatty acids</subject><subject>Fish</subject><subject>Fish oils</subject><subject>Food chains</subject><subject>Food webs</subject><subject>Freshwater &amp; Marine Ecology</subject><subject>Gastrointestinal system</subject><subject>Global climate</subject><subject>Global warming</subject><subject>Growth</subject><subject>Heart</subject><subject>High temperature</subject><subject>Juveniles</subject><subject>Life history</subject><subject>Life Sciences</subject><subject>Lipids</subject><subject>Liver</subject><subject>Marine &amp; Freshwater Sciences</subject><subject>Marine biology</subject><subject>Marine fishes</subject><subject>Microbiology</subject><subject>Muscles</subject><subject>Nutrient deficiency</subject><subject>Oceanography</subject><subject>Original Paper</subject><subject>Phytoplankton</subject><subject>Polyunsaturated fatty acids</subject><subject>Profiles</subject><subject>Sea bass</subject><subject>Temperature</subject><subject>Temperature effects</subject><subject>Unsaturated fatty acids</subject><subject>Zoological research</subject><subject>Zoology</subject><issn>0025-3162</issn><issn>1432-1793</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp1kkuP0zAQxyMEEmXhA3CzxIU9ZPEjiZ0TqpbHIlXiAuJoTdxx6sq1i5207Mflm-DSFQvSojlYnvn952FPVb1k9IpRKt9kSjmXNWWqFg3ltXhULVgjeM1kLx5XixJua8E6_rR6lvOWlrvkYlH9_Oa8J6OPA3hyhLRzYSRgLZqJTBskdg5mcjGUaEBcExsTwZwxTK64LEzTLQHj1pm4QLbzAYPzSDICGSBn8vqdM4VNkMxmzsTDkODH5VuyJNalPJF4wHRweCTR_i5nYsj4fcZgMJ98Ph4xETiAK1LnXalWvGGekrvr6u8WYiBjisdpQ_aYSqc7KHmeV08s-Iwv7s6L6uuH91-ub-rV54-frper2jS9mmqpVNNxZbBXrZGCrQVKxM5IrpShauCq6QeLgxFGys5AJ8GoHtd0oDBQNoiL6vKcdwNe75PbQbrVEZy-Wa70yUd5d7LuwAr76szuUyzT5klv45zKOFlzqnqqWtXRe2oEj9oFG8tDmp3LRi_blracN40sVP0ANWLABD4GtOVD_uWvHuCLrXHnzIMCdhaYFHNOaP9Mx6g-LZ8-L58uy6dPy6dF0fCzJhc2jJjuB_y_6BfIht9o</recordid><startdate>20180901</startdate><enddate>20180901</enddate><creator>Gourtay, Clémence</creator><creator>Chabot, Denis</creator><creator>Audet, Céline</creator><creator>Le Delliou, Hervé</creator><creator>Quazuguel, Patrick</creator><creator>Claireaux, Guy</creator><creator>Zambonino-Infante, José-Luis</creator><general>Springer Berlin Heidelberg</general><general>Springer</general><general>Springer Nature B.V</general><general>Springer Verlag</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QG</scope><scope>7SN</scope><scope>7ST</scope><scope>7TN</scope><scope>7U7</scope><scope>7XB</scope><scope>88A</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H95</scope><scope>HCIFZ</scope><scope>L.G</scope><scope>LK8</scope><scope>M2O</scope><scope>M7N</scope><scope>M7P</scope><scope>MBDVC</scope><scope>P64</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>R05</scope><scope>RC3</scope><scope>SOI</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0003-3366-210X</orcidid><orcidid>https://orcid.org/0000-0001-8436-4773</orcidid><orcidid>https://orcid.org/0000-0003-1340-6221</orcidid><orcidid>https://orcid.org/0000-0002-4199-0915</orcidid><orcidid>https://orcid.org/0000-0002-0347-0847</orcidid></search><sort><creationdate>20180901</creationdate><title>Will global warming affect the functional need for essential fatty acids in juvenile sea bass (Dicentrarchus labrax)? A first overview of the consequences of lower availability of nutritional fatty acids on growth performance</title><author>Gourtay, Clémence ; Chabot, Denis ; Audet, Céline ; Le Delliou, Hervé ; Quazuguel, Patrick ; Claireaux, Guy ; Zambonino-Infante, José-Luis</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c498t-7884628ce985c731d3e7ee6c7288c08b2849bfebc3c776ca67ac89ed0b0ab01b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Allometry</topic><topic>Availability</topic><topic>Biodiversity and Ecology</topic><topic>Biomedical and Life Sciences</topic><topic>Climate</topic><topic>Climate change</topic><topic>Depletion</topic><topic>Dicentrarchus labrax</topic><topic>Diet</topic><topic>Dry matter</topic><topic>Environmental Sciences</topic><topic>European sea bass</topic><topic>Fatty acid composition</topic><topic>Fatty acids</topic><topic>Fish</topic><topic>Fish oils</topic><topic>Food chains</topic><topic>Food webs</topic><topic>Freshwater &amp; Marine Ecology</topic><topic>Gastrointestinal system</topic><topic>Global climate</topic><topic>Global warming</topic><topic>Growth</topic><topic>Heart</topic><topic>High temperature</topic><topic>Juveniles</topic><topic>Life history</topic><topic>Life Sciences</topic><topic>Lipids</topic><topic>Liver</topic><topic>Marine &amp; Freshwater Sciences</topic><topic>Marine biology</topic><topic>Marine fishes</topic><topic>Microbiology</topic><topic>Muscles</topic><topic>Nutrient deficiency</topic><topic>Oceanography</topic><topic>Original Paper</topic><topic>Phytoplankton</topic><topic>Polyunsaturated fatty acids</topic><topic>Profiles</topic><topic>Sea bass</topic><topic>Temperature</topic><topic>Temperature effects</topic><topic>Unsaturated fatty acids</topic><topic>Zoological research</topic><topic>Zoology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gourtay, Clémence</creatorcontrib><creatorcontrib>Chabot, Denis</creatorcontrib><creatorcontrib>Audet, Céline</creatorcontrib><creatorcontrib>Le Delliou, Hervé</creatorcontrib><creatorcontrib>Quazuguel, Patrick</creatorcontrib><creatorcontrib>Claireaux, Guy</creatorcontrib><creatorcontrib>Zambonino-Infante, José-Luis</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Environment Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Toxicology Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric &amp; Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) 1: Biological Sciences &amp; Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Biological Science Collection</collection><collection>Research Library</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biological Science Database</collection><collection>Research Library (Corporate)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Earth, Atmospheric &amp; Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><collection>University of Michigan</collection><collection>Genetics Abstracts</collection><collection>Environment Abstracts</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Marine biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gourtay, Clémence</au><au>Chabot, Denis</au><au>Audet, Céline</au><au>Le Delliou, Hervé</au><au>Quazuguel, Patrick</au><au>Claireaux, Guy</au><au>Zambonino-Infante, José-Luis</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Will global warming affect the functional need for essential fatty acids in juvenile sea bass (Dicentrarchus labrax)? A first overview of the consequences of lower availability of nutritional fatty acids on growth performance</atitle><jtitle>Marine biology</jtitle><stitle>Mar Biol</stitle><date>2018-09-01</date><risdate>2018</risdate><volume>165</volume><issue>9</issue><spage>1</spage><epage>15</epage><pages>1-15</pages><artnum>143</artnum><issn>0025-3162</issn><eissn>1432-1793</eissn><abstract>Global climate changes have led to a depletion in omega-3 polyunsaturated fatty acids (n-3 PUFA) in marine phytoplankton that—with food web transfers—could negatively impact fish performance. The aim of this study was to assess the effect of a reduction in the dietary availability of n-3 PUFA on growth performance, organ allometry, and fatty acid composition in juvenile European sea bass ( Dicentrarchus labrax ) raised at two different temperatures: 15 °C (natural conditions) and 20 °C (global warming scenario). Fish were fed for 5 months with two isoenergetic and isoproteic diets: a reference diet (RD; 1.65% n-3 PUFA on a dry matter basis, DM) used as a proxy of trophic networks where n-3 PUFA were plentiful, and a lower n-3 PUFA diet (LD; 0.73% n-3 PUFA on DM) designed to mimic the expected decrease in n-3 PUFA sources resulting from global climate changes. Results showed decreasing growth rates and slight changes in the muscle polar lipid profile in LD-fed sea bass juveniles, whereas neutral lipids were more affected over the long term. The relative masses of the heart and gastrointestinal system were higher at 20 °C, while liver mass was higher at 15 °C in LD-fed juveniles. However, the mesenteric fat of RD-fed juveniles was higher at 15 °C. Altogether the results suggest that sea bass juveniles are able to implement physiological mechanisms to cope with a decrease in dietary n-3 PUFA and are able to improve growth at the higher temperature, even with a decreased availability of n-3 PUFA. The temperature-driven increase in growth is also observed under the restricted n-3 PUFA diet, and this is accompanied by significant effects on organ allometry and FA profiles. This may indicate the presence of some metabolic costs that remain to be evaluated, but which illustrate that the combination of warming temperatures and n-3 PUFA depletion has significant effects on life history traits.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00227-018-3402-3</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0003-3366-210X</orcidid><orcidid>https://orcid.org/0000-0001-8436-4773</orcidid><orcidid>https://orcid.org/0000-0003-1340-6221</orcidid><orcidid>https://orcid.org/0000-0002-4199-0915</orcidid><orcidid>https://orcid.org/0000-0002-0347-0847</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0025-3162
ispartof Marine biology, 2018-09, Vol.165 (9), p.1-15, Article 143
issn 0025-3162
1432-1793
language eng
recordid cdi_hal_primary_oai_HAL_hal_02626266v1
source SpringerLink Journals - AutoHoldings
subjects Allometry
Availability
Biodiversity and Ecology
Biomedical and Life Sciences
Climate
Climate change
Depletion
Dicentrarchus labrax
Diet
Dry matter
Environmental Sciences
European sea bass
Fatty acid composition
Fatty acids
Fish
Fish oils
Food chains
Food webs
Freshwater & Marine Ecology
Gastrointestinal system
Global climate
Global warming
Growth
Heart
High temperature
Juveniles
Life history
Life Sciences
Lipids
Liver
Marine & Freshwater Sciences
Marine biology
Marine fishes
Microbiology
Muscles
Nutrient deficiency
Oceanography
Original Paper
Phytoplankton
Polyunsaturated fatty acids
Profiles
Sea bass
Temperature
Temperature effects
Unsaturated fatty acids
Zoological research
Zoology
title Will global warming affect the functional need for essential fatty acids in juvenile sea bass (Dicentrarchus labrax)? A first overview of the consequences of lower availability of nutritional fatty acids on growth performance
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-22T20%3A53%3A32IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_hal_p&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Will%20global%20warming%20affect%20the%20functional%20need%20for%20essential%20fatty%20acids%20in%20juvenile%20sea%20bass%20(Dicentrarchus%20labrax)?%20A%20first%20overview%20of%20the%20consequences%20of%20lower%20availability%20of%20nutritional%20fatty%20acids%20on%20growth%20performance&rft.jtitle=Marine%20biology&rft.au=Gourtay,%20Cl%C3%A9mence&rft.date=2018-09-01&rft.volume=165&rft.issue=9&rft.spage=1&rft.epage=15&rft.pages=1-15&rft.artnum=143&rft.issn=0025-3162&rft.eissn=1432-1793&rft_id=info:doi/10.1007/s00227-018-3402-3&rft_dat=%3Cgale_hal_p%3EA550522447%3C/gale_hal_p%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2089085860&rft_id=info:pmid/&rft_galeid=A550522447&rfr_iscdi=true