Tracing the Food Web of Changing Arctic Ocean: Trophic Status of Highly Abundant Fish, Gasterosteus aculeatus (L.), in the White Sea Recovered Using Stomach Content and Stable Isotope Analyses
Studies of dietary preferences of migratory species are of great importance as these species connect food webs of habitats across the migration route and thus represent trophic relationships between the spatially disjointed communities. Here we described the dietary preferences of threespine stickle...
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2022
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ftdoajarticles:oai:doaj.org/article:dde568c20dc14fc5a91fa9a75003e159 2023-05-15T15:10:01+02:00 Tracing the Food Web of Changing Arctic Ocean: Trophic Status of Highly Abundant Fish, Gasterosteus aculeatus (L.), in the White Sea Recovered Using Stomach Content and Stable Isotope Analyses Anna S. Genelt-Yanovskaya Natalia V. Polyakova Mikhail V. Ivanov Ekaterina V. Nadtochii Tatiana S. Ivanova Evgeny A. Genelt-Yanovskiy Alexei V. Tiunov Dmitry L. Lajus 2022-11-01T00:00:00Z https://doi.org/10.3390/d14110955 https://doaj.org/article/dde568c20dc14fc5a91fa9a75003e159 EN eng MDPI AG https://www.mdpi.com/1424-2818/14/11/955 https://doaj.org/toc/1424-2818 doi:10.3390/d14110955 1424-2818 https://doaj.org/article/dde568c20dc14fc5a91fa9a75003e159 Diversity, Vol 14, Iss 955, p 955 (2022) threespine stickleback Gasterosteus aculeatus stomach content analysis stable isotope analysis fish diet the White Sea Biology (General) QH301-705.5 article 2022 ftdoajarticles https://doi.org/10.3390/d14110955 2022-12-30T21:07:17Z Studies of dietary preferences of migratory species are of great importance as these species connect food webs of habitats across the migration route and thus represent trophic relationships between the spatially disjointed communities. Here we described the dietary preferences of threespine stickleback G. aculeatus in the White Sea during the spawning season using stable isotope and stomach content analyses. The two analyses suggested that during the spawning season, when sticklebacks spend the majority of their time inshore, their diet consists mostly of benthic species, while at the beginning of the spawning season when fish migrating from the offshore were feeding on plankton. Additionally, we demonstrated that stickleback eggs contributed greatly to the diet of both male and female fish. Using Bayesian mixing modeling, we showed that dietary preferences in females were broader than in males, and more variable during the spawning season. While guarding their nests, males fed almost exclusively on eggs. Both stomach contents and isotope signatures demonstrate that by the end of the spawning season sticklebacks again increase the consumption of plankton. Isotope analysis proved to be a more reliable tool to trace this change than stomach content analysis. Our results show that stable isotope and stomach content analyses are complementary in understanding seasonal changes in the dietary composition of stickleback. Article in Journal/Newspaper Arctic Arctic Ocean White Sea Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean White Sea Diversity 14 11 955 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
threespine stickleback Gasterosteus aculeatus stomach content analysis stable isotope analysis fish diet the White Sea Biology (General) QH301-705.5 |
spellingShingle |
threespine stickleback Gasterosteus aculeatus stomach content analysis stable isotope analysis fish diet the White Sea Biology (General) QH301-705.5 Anna S. Genelt-Yanovskaya Natalia V. Polyakova Mikhail V. Ivanov Ekaterina V. Nadtochii Tatiana S. Ivanova Evgeny A. Genelt-Yanovskiy Alexei V. Tiunov Dmitry L. Lajus Tracing the Food Web of Changing Arctic Ocean: Trophic Status of Highly Abundant Fish, Gasterosteus aculeatus (L.), in the White Sea Recovered Using Stomach Content and Stable Isotope Analyses |
topic_facet |
threespine stickleback Gasterosteus aculeatus stomach content analysis stable isotope analysis fish diet the White Sea Biology (General) QH301-705.5 |
description |
Studies of dietary preferences of migratory species are of great importance as these species connect food webs of habitats across the migration route and thus represent trophic relationships between the spatially disjointed communities. Here we described the dietary preferences of threespine stickleback G. aculeatus in the White Sea during the spawning season using stable isotope and stomach content analyses. The two analyses suggested that during the spawning season, when sticklebacks spend the majority of their time inshore, their diet consists mostly of benthic species, while at the beginning of the spawning season when fish migrating from the offshore were feeding on plankton. Additionally, we demonstrated that stickleback eggs contributed greatly to the diet of both male and female fish. Using Bayesian mixing modeling, we showed that dietary preferences in females were broader than in males, and more variable during the spawning season. While guarding their nests, males fed almost exclusively on eggs. Both stomach contents and isotope signatures demonstrate that by the end of the spawning season sticklebacks again increase the consumption of plankton. Isotope analysis proved to be a more reliable tool to trace this change than stomach content analysis. Our results show that stable isotope and stomach content analyses are complementary in understanding seasonal changes in the dietary composition of stickleback. |
format |
Article in Journal/Newspaper |
author |
Anna S. Genelt-Yanovskaya Natalia V. Polyakova Mikhail V. Ivanov Ekaterina V. Nadtochii Tatiana S. Ivanova Evgeny A. Genelt-Yanovskiy Alexei V. Tiunov Dmitry L. Lajus |
author_facet |
Anna S. Genelt-Yanovskaya Natalia V. Polyakova Mikhail V. Ivanov Ekaterina V. Nadtochii Tatiana S. Ivanova Evgeny A. Genelt-Yanovskiy Alexei V. Tiunov Dmitry L. Lajus |
author_sort |
Anna S. Genelt-Yanovskaya |
title |
Tracing the Food Web of Changing Arctic Ocean: Trophic Status of Highly Abundant Fish, Gasterosteus aculeatus (L.), in the White Sea Recovered Using Stomach Content and Stable Isotope Analyses |
title_short |
Tracing the Food Web of Changing Arctic Ocean: Trophic Status of Highly Abundant Fish, Gasterosteus aculeatus (L.), in the White Sea Recovered Using Stomach Content and Stable Isotope Analyses |
title_full |
Tracing the Food Web of Changing Arctic Ocean: Trophic Status of Highly Abundant Fish, Gasterosteus aculeatus (L.), in the White Sea Recovered Using Stomach Content and Stable Isotope Analyses |
title_fullStr |
Tracing the Food Web of Changing Arctic Ocean: Trophic Status of Highly Abundant Fish, Gasterosteus aculeatus (L.), in the White Sea Recovered Using Stomach Content and Stable Isotope Analyses |
title_full_unstemmed |
Tracing the Food Web of Changing Arctic Ocean: Trophic Status of Highly Abundant Fish, Gasterosteus aculeatus (L.), in the White Sea Recovered Using Stomach Content and Stable Isotope Analyses |
title_sort |
tracing the food web of changing arctic ocean: trophic status of highly abundant fish, gasterosteus aculeatus (l.), in the white sea recovered using stomach content and stable isotope analyses |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/d14110955 https://doaj.org/article/dde568c20dc14fc5a91fa9a75003e159 |
geographic |
Arctic Arctic Ocean White Sea |
geographic_facet |
Arctic Arctic Ocean White Sea |
genre |
Arctic Arctic Ocean White Sea |
genre_facet |
Arctic Arctic Ocean White Sea |
op_source |
Diversity, Vol 14, Iss 955, p 955 (2022) |
op_relation |
https://www.mdpi.com/1424-2818/14/11/955 https://doaj.org/toc/1424-2818 doi:10.3390/d14110955 1424-2818 https://doaj.org/article/dde568c20dc14fc5a91fa9a75003e159 |
op_doi |
https://doi.org/10.3390/d14110955 |
container_title |
Diversity |
container_volume |
14 |
container_issue |
11 |
container_start_page |
955 |
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1766341091556065280 |