Trophic characteristics of pelagic and bottom nekton in certain water masses in the western Chukchi Sea, by δ15N and δ13C data
To compare the trophic characteristics of pelagic- and bottom-dwelling fish in the western Chukchi Sea, isotopic composition of carbon and nitrogen (δ13С and δ15N) is considered separately for the Subarctic water mass (invaded from the Bering Sea) and local Arctic water mass. In summer of 2018 and 2...
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Transactions of the Pacific Research Institute of Fisheries and Oceanography
2023-12-01
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| Series: | Известия ТИНРО |
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| Online Access: | https://izvestiya.tinro-center.ru/jour/article/view/890 |
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| author | K. M. Gorbatenko I. V. Melnikov A. P. Pedchenko |
| author_facet | K. M. Gorbatenko I. V. Melnikov A. P. Pedchenko |
| author_sort | K. M. Gorbatenko |
| collection | DOAJ |
| description | To compare the trophic characteristics of pelagic- and bottom-dwelling fish in the western Chukchi Sea, isotopic composition of carbon and nitrogen (δ13С and δ15N) is considered separately for the Subarctic water mass (invaded from the Bering Sea) and local Arctic water mass. In summer of 2018 and 2019, the proper water mass occupied mostly the area southward from 71оN and the latter one – northward from this latitude. The isotopic composition of both pelagic and bottom nekton in the southern area was characterized by higher values of δ13C (up to 2 % higher) and low values of δ15N (up to 1 % lower) in comparison with those in the northern area. That was interpreted that in the southern area, within the water from the Bering Sea, more than 90 % of the sampled bottom fish species were linked with prey from the bottom community. In the northern area, within the Arctic water, all samples of bottom fish were characterized by minimal content of heavy carbon δ13C isotope, comparable with the values in samples of pelagic fish that indicated a significant role of pelagic prey in nutrition of the bottom nekton. |
| format | Article |
| id | doaj-art-e209bd776df840bdac877006adc5385b |
| institution | Kabale University |
| issn | 1606-9919 2658-5510 |
| language | Russian |
| publishDate | 2023-12-01 |
| publisher | Transactions of the Pacific Research Institute of Fisheries and Oceanography |
| record_format | Article |
| series | Известия ТИНРО |
| spelling | doaj-art-e209bd776df840bdac877006adc5385b2025-08-20T03:39:48ZrusTransactions of the Pacific Research Institute of Fisheries and OceanographyИзвестия ТИНРО1606-99192658-55102023-12-01203497698710.26428/1606-9919-2023-203-976-987781Trophic characteristics of pelagic and bottom nekton in certain water masses in the western Chukchi Sea, by δ15N and δ13C dataK. M. Gorbatenko0I. V. Melnikov1A. P. Pedchenko2Pacific branch of VNIRO (TINRO)Pacific branch of VNIRO (TINRO)Russian Federal Research Institute of Fisheries and OceanographyTo compare the trophic characteristics of pelagic- and bottom-dwelling fish in the western Chukchi Sea, isotopic composition of carbon and nitrogen (δ13С and δ15N) is considered separately for the Subarctic water mass (invaded from the Bering Sea) and local Arctic water mass. In summer of 2018 and 2019, the proper water mass occupied mostly the area southward from 71оN and the latter one – northward from this latitude. The isotopic composition of both pelagic and bottom nekton in the southern area was characterized by higher values of δ13C (up to 2 % higher) and low values of δ15N (up to 1 % lower) in comparison with those in the northern area. That was interpreted that in the southern area, within the water from the Bering Sea, more than 90 % of the sampled bottom fish species were linked with prey from the bottom community. In the northern area, within the Arctic water, all samples of bottom fish were characterized by minimal content of heavy carbon δ13C isotope, comparable with the values in samples of pelagic fish that indicated a significant role of pelagic prey in nutrition of the bottom nekton.https://izvestiya.tinro-center.ru/jour/article/view/890arcticnektonpreystable isotopenitrogencarbon |
| spellingShingle | K. M. Gorbatenko I. V. Melnikov A. P. Pedchenko Trophic characteristics of pelagic and bottom nekton in certain water masses in the western Chukchi Sea, by δ15N and δ13C data Известия ТИНРО arctic nekton prey stable isotope nitrogen carbon |
| title | Trophic characteristics of pelagic and bottom nekton in certain water masses in the western Chukchi Sea, by δ15N and δ13C data |
| title_full | Trophic characteristics of pelagic and bottom nekton in certain water masses in the western Chukchi Sea, by δ15N and δ13C data |
| title_fullStr | Trophic characteristics of pelagic and bottom nekton in certain water masses in the western Chukchi Sea, by δ15N and δ13C data |
| title_full_unstemmed | Trophic characteristics of pelagic and bottom nekton in certain water masses in the western Chukchi Sea, by δ15N and δ13C data |
| title_short | Trophic characteristics of pelagic and bottom nekton in certain water masses in the western Chukchi Sea, by δ15N and δ13C data |
| title_sort | trophic characteristics of pelagic and bottom nekton in certain water masses in the western chukchi sea by δ15n and δ13c data |
| topic | arctic nekton prey stable isotope nitrogen carbon |
| url | https://izvestiya.tinro-center.ru/jour/article/view/890 |
| work_keys_str_mv | AT kmgorbatenko trophiccharacteristicsofpelagicandbottomnektonincertainwatermassesinthewesternchukchiseabyd15nandd13cdata AT ivmelnikov trophiccharacteristicsofpelagicandbottomnektonincertainwatermassesinthewesternchukchiseabyd15nandd13cdata AT appedchenko trophiccharacteristicsofpelagicandbottomnektonincertainwatermassesinthewesternchukchiseabyd15nandd13cdata |