Fatty Acids of the Three-Spined Stickleback (Gasterosteus aculeatus L.) from the White Sea

Мурзина, С. А.; Нефедова, З. А.; Пеккоева, С. Н.; Lajus, Dmitry; Немова, Н. Н.

doi:10.1134/s0003683819010125

Cited by 5 publications

(2 citation statements)

References 20 publications

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“…Small fishes play fundamental roles in pelagic ecosystems, as they transfer energy and nutrients to higher trophic levels [3]. The White Sea population of the threespine stickleback Gasterosteus aculeatus is a subject of extensive research in recent years, as abundance of this small fish is growing here in line with other populations across northern Europe [9][10][11][12][13][14]. Stickleback has negligeable commercial significance and previously was targeted by fisheries only during the periods of high abundance.…”

Section: Introductionmentioning

confidence: 99%

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

Genelt-Yanovskaya¹,

Polyakova²,

Ivanov³

et al. 2022

Preprint

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Studies of dietary preferences of migratory species are of great importance as these species connect trophic webs of habitats across the route of migration and thus represent trophic relationships between the spatially disjointed communities. Here we describe dietary preferences of the White Sea threespine stickleback Gasterosteus aculeatus during the spawning season using stable isotope and stomach content analyses. Both analyses indicated that during the spawning season, when sticklebacks spend most of the time in the nearshore, their diet significantly consist of benthic species in contrast to the start of the spawning season when fishes migrating from the offshore are feeding on zooplankton. Also, we show that stickleback eggs contribute greatly to the diet of both male and female fishes. Using Bayes mixing modelling we show that dietary preferences in females were broader than in males, and more variable during the spawning season. Males fed on eggs almost completely while guarding their nests. Both stomach contents and isotope signatures demonstrate that by the end of the spawning season sticklebacks again increase consumption of plankton, and isotope analysis proved to be more reliable tool to trace this change than stomach content analysis. Our results show that stable isotope and stomach content analyses well supplement each other in understanding of seasonal changes in dietary composition of stickleback.

show abstract

Section: Introductionmentioning

confidence: 99%

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

Genelt-Yanovskaya¹,

Polyakova²,

Ivanov³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Small fishes play fundamental roles in pelagic ecosystems, as they transfer energy and nutrients to higher trophic levels [3]. The White Sea population of the threespine stickleback Gasterosteus aculeatus has been the subject of extensive research in recent years, as abundance of this small fish is growing here in line with other populations across northern Europe [9][10][11][12][13][14]. Stickleback has negligeable commercial significance and has been targeted by fisheries only during periods of high abundance.…”

Section: Introductionmentioning

confidence: 99%

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

Genelt-Yanovskaya¹,

Polyakova²,

Ivanov³

et al. 2022

Preprint

View full text Add to dashboard Cite

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 describe dietary preferences of threespine stickleback G. aculeatus in the White Sea during the spawning season using stable isotope and stomach content analyses. Both analyses indicated that during the spawning season, when sticklebacks spend most of the time in the inshore, their diet significantly consist of benthic species in contrast to the start of the spawning season when fishes migrating from the offshore are feeding on zooplankton. Also, we show that stickleback eggs contribute greatly to the diet of both male and female fishes. Using Bayesian mixing modelling we show that dietary preferences in females were broader than in males, and more variable during the spawning season. Males fed on eggs almost while guarding their nests. Both stomach contents and isotope signatures demonstrate that by the end of the spawning season sticklebacks again increase consumption of plankton, and isotope analysis proved to be more reliable tool to trace this change than stomach content analysis. Our results show that stable isotope and stomach content analyses well supplement each other in understanding of seasonal changes in dietary composition of stickleback.

show abstract

Ecological Biochemical Adaptations in Aquatic Organisms

Немова

2023

Biol Bull Russ Acad Sci

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Fatty Acids of the Three-Spined Stickleback (Gasterosteus aculeatus L.) from the White Sea

Cited by 5 publications

References 20 publications

Tracing the Food Web of Changing Arctic Ocean: Trophic Status of Highly Abundant Fish, <i>Gasterosteus Aculeatus </i>(L.), in the White Sea Recovered Using Stomach Content and Stable Isotope Analyses

Tracing the Food Web of Changing Arctic Ocean: Trophic Status of Highly Abundant Fish, <i>Gasterosteus Aculeatus </i>(L.), in the White Sea Recovered Using Stomach Content and Stable Isotope Analyses

Tracing the Food Web of Changing Arctic Ocean: Trophic Status of Highly Abundant Fish, <i>Gasterosteus aculeatus </i>(L.), in the White Sea Recovered Using Stomach Content and Stable Isotope Analyses

Ecological Biochemical Adaptations in Aquatic Organisms

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