Are fatty acids in fish the evidence of trophic links? A case study from the southern Baltic Vistula Lagoon
Most knowledge on the feeding ecology of fish has been based on the analyses of food remains from the alimentary tracks. This traditional method, however, only provides information about recently consumed food, and is burdened with a risk of incorrect assessment of the role of individual diet compon...
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2022
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Online Access: | https://doi.org/10.1016/j.oceano.2022.04.002 https://doaj.org/article/4f1476b5462e40b4be180456d752cb40 |
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ftdoajarticles:oai:doaj.org/article:4f1476b5462e40b4be180456d752cb40 2023-05-15T13:28:01+02:00 Are fatty acids in fish the evidence of trophic links? A case study from the southern Baltic Vistula Lagoon Agnieszka Góra Joanna Szlinder-Richert Ryszard Kornijów 2022-10-01T00:00:00Z https://doi.org/10.1016/j.oceano.2022.04.002 https://doaj.org/article/4f1476b5462e40b4be180456d752cb40 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S0078323422000513 https://doaj.org/toc/0078-3234 0078-3234 doi:10.1016/j.oceano.2022.04.002 https://doaj.org/article/4f1476b5462e40b4be180456d752cb40 Oceanologia, Vol 64, Iss 4, Pp 567-582 (2022) Trophic marker Feeding ecology Ontogenetic shift PUFA biosynthesis Oceanography GC1-1581 article 2022 ftdoajarticles https://doi.org/10.1016/j.oceano.2022.04.002 2022-12-30T19:48:32Z Most knowledge on the feeding ecology of fish has been based on the analyses of food remains from the alimentary tracks. This traditional method, however, only provides information about recently consumed food, and is burdened with a risk of incorrect assessment of the role of individual diet components due to the different rates of digestion. A method free from such limitations is the analysis of fatty acids. The objective of our study was to recognise the potential of fatty acid signatures in providing information on the diet and feeding habits of six fish species from the shallow brackish Vistula Lagoon, southern Baltic Sea (Anguilla anguilla, Abramis brama, Rutilus rutilus, Pelecus cultratus, Perca fluviatilis, Sander lucioperca). Multivariate statistical analyses of fatty acid signatures permitted relevant grouping of the fish according to species and their diet, as well as evidenced substantial ontogenetic changes in perch, roach, and bream. They might be caused by dietary changes but can also result from internal regulatory processes. The obtained results confirmed that fatty acids provide useful, time-integrated dietary information, contributing to expanding knowledge regarding the feeding ecology of fish in shallow coastal water ecosystems. They also pointed to the necessity of assessment of the invertebrates and fish's ability to perform endogenous synthesis of polyunsaturated fatty acids, particularly in research on benthic communities. To our best knowledge, this is the first attempt to investigate the feeding habits of fish and food-web relationships in the coastal waters of the Baltic Sea using fatty acids. Article in Journal/Newspaper Anguilla anguilla Directory of Open Access Journals: DOAJ Articles Brama ENVELOPE(-58.467,-58.467,-62.208,-62.208) Oceanologia 64 4 567 582 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Trophic marker Feeding ecology Ontogenetic shift PUFA biosynthesis Oceanography GC1-1581 |
spellingShingle |
Trophic marker Feeding ecology Ontogenetic shift PUFA biosynthesis Oceanography GC1-1581 Agnieszka Góra Joanna Szlinder-Richert Ryszard Kornijów Are fatty acids in fish the evidence of trophic links? A case study from the southern Baltic Vistula Lagoon |
topic_facet |
Trophic marker Feeding ecology Ontogenetic shift PUFA biosynthesis Oceanography GC1-1581 |
description |
Most knowledge on the feeding ecology of fish has been based on the analyses of food remains from the alimentary tracks. This traditional method, however, only provides information about recently consumed food, and is burdened with a risk of incorrect assessment of the role of individual diet components due to the different rates of digestion. A method free from such limitations is the analysis of fatty acids. The objective of our study was to recognise the potential of fatty acid signatures in providing information on the diet and feeding habits of six fish species from the shallow brackish Vistula Lagoon, southern Baltic Sea (Anguilla anguilla, Abramis brama, Rutilus rutilus, Pelecus cultratus, Perca fluviatilis, Sander lucioperca). Multivariate statistical analyses of fatty acid signatures permitted relevant grouping of the fish according to species and their diet, as well as evidenced substantial ontogenetic changes in perch, roach, and bream. They might be caused by dietary changes but can also result from internal regulatory processes. The obtained results confirmed that fatty acids provide useful, time-integrated dietary information, contributing to expanding knowledge regarding the feeding ecology of fish in shallow coastal water ecosystems. They also pointed to the necessity of assessment of the invertebrates and fish's ability to perform endogenous synthesis of polyunsaturated fatty acids, particularly in research on benthic communities. To our best knowledge, this is the first attempt to investigate the feeding habits of fish and food-web relationships in the coastal waters of the Baltic Sea using fatty acids. |
format |
Article in Journal/Newspaper |
author |
Agnieszka Góra Joanna Szlinder-Richert Ryszard Kornijów |
author_facet |
Agnieszka Góra Joanna Szlinder-Richert Ryszard Kornijów |
author_sort |
Agnieszka Góra |
title |
Are fatty acids in fish the evidence of trophic links? A case study from the southern Baltic Vistula Lagoon |
title_short |
Are fatty acids in fish the evidence of trophic links? A case study from the southern Baltic Vistula Lagoon |
title_full |
Are fatty acids in fish the evidence of trophic links? A case study from the southern Baltic Vistula Lagoon |
title_fullStr |
Are fatty acids in fish the evidence of trophic links? A case study from the southern Baltic Vistula Lagoon |
title_full_unstemmed |
Are fatty acids in fish the evidence of trophic links? A case study from the southern Baltic Vistula Lagoon |
title_sort |
are fatty acids in fish the evidence of trophic links? a case study from the southern baltic vistula lagoon |
publisher |
Elsevier |
publishDate |
2022 |
url |
https://doi.org/10.1016/j.oceano.2022.04.002 https://doaj.org/article/4f1476b5462e40b4be180456d752cb40 |
long_lat |
ENVELOPE(-58.467,-58.467,-62.208,-62.208) |
geographic |
Brama |
geographic_facet |
Brama |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
Oceanologia, Vol 64, Iss 4, Pp 567-582 (2022) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0078323422000513 https://doaj.org/toc/0078-3234 0078-3234 doi:10.1016/j.oceano.2022.04.002 https://doaj.org/article/4f1476b5462e40b4be180456d752cb40 |
op_doi |
https://doi.org/10.1016/j.oceano.2022.04.002 |
container_title |
Oceanologia |
container_volume |
64 |
container_issue |
4 |
container_start_page |
567 |
op_container_end_page |
582 |
_version_ |
1766401752298422272 |