Fatty acid composition and parasitism of European sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus) populations in the northern Catalan Sea in the context of changing environmental conditions
The status of sardine and anchovy populations in the northern Mediterranean Sea has been declining in recent decades. In this study, fatty acids and parasitism at different reproductive and feeding stages in these two species were assessed using specimens caught along the northern Catalan coast, in...
Published in: | Conservation Physiology |
---|---|
Main Authors: | , , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Society for Experimental Biology
2020
|
Subjects: | |
Online Access: | https://hdl.handle.net/20.500.12327/1224 https://doi.org/10.1093/conphys/coaa121 |
id |
ftirta:oai:repositori.irta.cat:20.500.12327/1224 |
---|---|
record_format |
openpolar |
spelling |
ftirta:oai:repositori.irta.cat:20.500.12327/1224 2023-07-02T03:33:09+02:00 Fatty acid composition and parasitism of European sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus) populations in the northern Catalan Sea in the context of changing environmental conditions Biton-Porsmoguer, Sebastian Bou, Ricard Lloret, Elsa Alcaide, Manuel Lloret, Josep Indústries Alimentàries Funcionalitat i Seguretat Alimentària Qualitat i Tecnologia Alimentària 2020-12-29 14 application/pdf https://hdl.handle.net/20.500.12327/1224 https://doi.org/10.1093/conphys/coaa121 eng eng Society for Experimental Biology Conservation Physiology Biton-Porsmoguer, Sebastian, Ricard Bou, Elsa Lloret, Manuel Alcaide, and Josep Lloret. 2020. "Fatty Acid Composition And Parasitism Of European Sardine (Sardina Pilchardus) And Anchovy (Engraulis Encrasicolus) Populations In The Northern Catalan Sea In The Context Of Changing Environmental Conditions". Conservation Physiology 8 (1). doi:10.1093/conphys/coaa121. 2051-1434 http://hdl.handle.net/20.500.12327/1224 https://doi.org/10.1093/conphys/coaa121 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess 663/664 info:eu-repo/semantics/article 2020 ftirta https://doi.org/20.500.12327/122410.1093/conphys/coaa121 2023-06-13T23:20:10Z The status of sardine and anchovy populations in the northern Mediterranean Sea has been declining in recent decades. In this study, fatty acids and parasitism at different reproductive and feeding stages in these two species were assessed using specimens caught along the northern Catalan coast, in order to assess the links between lipid dynamics, reproduction and feeding in these two species and to contribute towards an explanation of the potential causes of the current poor situation of the stocks. The results support the use of fatty acid levels as indicators of the body condition of sardine and anchovy at different reproductive and feeding stages, as well as that of the pelagic environmental conditions. In particular, the relatively low n-3 polyunsaturated fatty acid levels found in spawning sardines compared to spawning anchovies indicate a poorer reproductive health status of sardine. By comparing the current total lipid content values with those recorded in other Mediterranean and North Atlantic areas, and others from more than 10 years ago, in the adjacent area of the Gulf of Lion, our study reveals the persistent poor condition of sardine and anchovy in the northern Catalan Sea. Furthermore, the low levels of diatom fatty acid markers observed throughout the spawning and non-spawning seasons in both sardine and anchovy indicate a diet poor in diatoms. Moreover, the results indicate that it is very unlikely that parasitism is a significant factor in the decline in condition of sardine and anchovy in the northern Catalan Sea. In fact, the results, which we believe provide useful insights for the management of small pelagic fisheries in the Mediterranean, suggest that the current poor condition of sardine and anchovy in the northern Catalan Sea has probably been exacerbated by a decrease in plankton productivity and/or a shift in the taxonomic composition of phytoplankton communities, adding to the ongoing effects of overfishing. info:eu-repo/semantics/publishedVersion Article in Journal/Newspaper North Atlantic IRTA Pubpro (Institute of Agrifood Research and Technology) Conservation Physiology 8 1 |
institution |
Open Polar |
collection |
IRTA Pubpro (Institute of Agrifood Research and Technology) |
op_collection_id |
ftirta |
language |
English |
topic |
663/664 |
spellingShingle |
663/664 Biton-Porsmoguer, Sebastian Bou, Ricard Lloret, Elsa Alcaide, Manuel Lloret, Josep Fatty acid composition and parasitism of European sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus) populations in the northern Catalan Sea in the context of changing environmental conditions |
topic_facet |
663/664 |
description |
The status of sardine and anchovy populations in the northern Mediterranean Sea has been declining in recent decades. In this study, fatty acids and parasitism at different reproductive and feeding stages in these two species were assessed using specimens caught along the northern Catalan coast, in order to assess the links between lipid dynamics, reproduction and feeding in these two species and to contribute towards an explanation of the potential causes of the current poor situation of the stocks. The results support the use of fatty acid levels as indicators of the body condition of sardine and anchovy at different reproductive and feeding stages, as well as that of the pelagic environmental conditions. In particular, the relatively low n-3 polyunsaturated fatty acid levels found in spawning sardines compared to spawning anchovies indicate a poorer reproductive health status of sardine. By comparing the current total lipid content values with those recorded in other Mediterranean and North Atlantic areas, and others from more than 10 years ago, in the adjacent area of the Gulf of Lion, our study reveals the persistent poor condition of sardine and anchovy in the northern Catalan Sea. Furthermore, the low levels of diatom fatty acid markers observed throughout the spawning and non-spawning seasons in both sardine and anchovy indicate a diet poor in diatoms. Moreover, the results indicate that it is very unlikely that parasitism is a significant factor in the decline in condition of sardine and anchovy in the northern Catalan Sea. In fact, the results, which we believe provide useful insights for the management of small pelagic fisheries in the Mediterranean, suggest that the current poor condition of sardine and anchovy in the northern Catalan Sea has probably been exacerbated by a decrease in plankton productivity and/or a shift in the taxonomic composition of phytoplankton communities, adding to the ongoing effects of overfishing. info:eu-repo/semantics/publishedVersion |
author2 |
Indústries Alimentàries Funcionalitat i Seguretat Alimentària Qualitat i Tecnologia Alimentària |
format |
Article in Journal/Newspaper |
author |
Biton-Porsmoguer, Sebastian Bou, Ricard Lloret, Elsa Alcaide, Manuel Lloret, Josep |
author_facet |
Biton-Porsmoguer, Sebastian Bou, Ricard Lloret, Elsa Alcaide, Manuel Lloret, Josep |
author_sort |
Biton-Porsmoguer, Sebastian |
title |
Fatty acid composition and parasitism of European sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus) populations in the northern Catalan Sea in the context of changing environmental conditions |
title_short |
Fatty acid composition and parasitism of European sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus) populations in the northern Catalan Sea in the context of changing environmental conditions |
title_full |
Fatty acid composition and parasitism of European sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus) populations in the northern Catalan Sea in the context of changing environmental conditions |
title_fullStr |
Fatty acid composition and parasitism of European sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus) populations in the northern Catalan Sea in the context of changing environmental conditions |
title_full_unstemmed |
Fatty acid composition and parasitism of European sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus) populations in the northern Catalan Sea in the context of changing environmental conditions |
title_sort |
fatty acid composition and parasitism of european sardine (sardina pilchardus) and anchovy (engraulis encrasicolus) populations in the northern catalan sea in the context of changing environmental conditions |
publisher |
Society for Experimental Biology |
publishDate |
2020 |
url |
https://hdl.handle.net/20.500.12327/1224 https://doi.org/10.1093/conphys/coaa121 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Conservation Physiology Biton-Porsmoguer, Sebastian, Ricard Bou, Elsa Lloret, Manuel Alcaide, and Josep Lloret. 2020. "Fatty Acid Composition And Parasitism Of European Sardine (Sardina Pilchardus) And Anchovy (Engraulis Encrasicolus) Populations In The Northern Catalan Sea In The Context Of Changing Environmental Conditions". Conservation Physiology 8 (1). doi:10.1093/conphys/coaa121. 2051-1434 http://hdl.handle.net/20.500.12327/1224 https://doi.org/10.1093/conphys/coaa121 |
op_rights |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/20.500.12327/122410.1093/conphys/coaa121 |
container_title |
Conservation Physiology |
container_volume |
8 |
container_issue |
1 |
_version_ |
1770272991513411584 |