The diets of humpback whales ( Megaptera novaeangliae) on the shelf and oceanic feeding grounds in the western North Pacific inferred from stable isotope analysis
Abstract Humpback whales feed on a variety of prey, but significant differences likely occur between regional feeding grounds. In this study, the diets of humpback whales were analyzed by comparing stable isotope ratios in animal tissues at three humpback whale feeding grounds in the Russian Far Eas...
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crwiley:10.1111/j.1748-7692.2012.00617.x 2024-05-19T07:28:23+00:00 The diets of humpback whales ( Megaptera novaeangliae) on the shelf and oceanic feeding grounds in the western North Pacific inferred from stable isotope analysis Filatova, Olga A. Witteveen, Briana H. Goncharov, Anton A. Tiunov, Alexei V. Goncharova, Maria I. Burdin, Alexander M. Hoyt, Erich 2012 http://dx.doi.org/10.1111/j.1748-7692.2012.00617.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2012.00617.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2012.00617.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 29, issue 3 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2012 crwiley https://doi.org/10.1111/j.1748-7692.2012.00617.x 2024-04-22T07:31:07Z Abstract Humpback whales feed on a variety of prey, but significant differences likely occur between regional feeding grounds. In this study, the diets of humpback whales were analyzed by comparing stable isotope ratios in animal tissues at three humpback whale feeding grounds in the Russian Far East: Karaginsky Gulf, Anadyr Gulf, and the Commander Islands. Anadyr Gulf is a neritic zone far from a shelf break, Karaginsky Gulf is a neritic zone close to a shelf break, and the Commander Islands represent an open oceanic ecosystem where whales feed off the shelf break. Samples from the Commander Islands had the lowest mean δ 13 C and δ 15 N values (mean ± SE : δ 13 C = −18.7 ± 0.1, δ 15 N = 10.4 ± 0.1) compared to the samples from Karaginsky Gulf (δ 13 C = −17.2 ± 0.1, δ 15 N = 12.7 ± 0.2) and Anadyr Gulf (δ 13 C= −17.8 ± 0.1, δ 15 N = 14.0 ± 0.4). The samples from Anadyr Gulf had the highest δ 15 N values, while the samples from Karaginsky Gulf had the highest δ 13 C values. Both δ 13 C and δ 15 N values differed significantly among all three areas. Our data support the hypothesis that humpback whales tend to feed on fish in neritic areas and on plankton in deep oceanic waters. Article in Journal/Newspaper Anadyr Anadyr' Humpback Whale Megaptera novaeangliae Wiley Online Library Marine Mammal Science 29 3 E253 E265 |
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Wiley Online Library |
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language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
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Aquatic Science Ecology, Evolution, Behavior and Systematics Filatova, Olga A. Witteveen, Briana H. Goncharov, Anton A. Tiunov, Alexei V. Goncharova, Maria I. Burdin, Alexander M. Hoyt, Erich The diets of humpback whales ( Megaptera novaeangliae) on the shelf and oceanic feeding grounds in the western North Pacific inferred from stable isotope analysis |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract Humpback whales feed on a variety of prey, but significant differences likely occur between regional feeding grounds. In this study, the diets of humpback whales were analyzed by comparing stable isotope ratios in animal tissues at three humpback whale feeding grounds in the Russian Far East: Karaginsky Gulf, Anadyr Gulf, and the Commander Islands. Anadyr Gulf is a neritic zone far from a shelf break, Karaginsky Gulf is a neritic zone close to a shelf break, and the Commander Islands represent an open oceanic ecosystem where whales feed off the shelf break. Samples from the Commander Islands had the lowest mean δ 13 C and δ 15 N values (mean ± SE : δ 13 C = −18.7 ± 0.1, δ 15 N = 10.4 ± 0.1) compared to the samples from Karaginsky Gulf (δ 13 C = −17.2 ± 0.1, δ 15 N = 12.7 ± 0.2) and Anadyr Gulf (δ 13 C= −17.8 ± 0.1, δ 15 N = 14.0 ± 0.4). The samples from Anadyr Gulf had the highest δ 15 N values, while the samples from Karaginsky Gulf had the highest δ 13 C values. Both δ 13 C and δ 15 N values differed significantly among all three areas. Our data support the hypothesis that humpback whales tend to feed on fish in neritic areas and on plankton in deep oceanic waters. |
format |
Article in Journal/Newspaper |
author |
Filatova, Olga A. Witteveen, Briana H. Goncharov, Anton A. Tiunov, Alexei V. Goncharova, Maria I. Burdin, Alexander M. Hoyt, Erich |
author_facet |
Filatova, Olga A. Witteveen, Briana H. Goncharov, Anton A. Tiunov, Alexei V. Goncharova, Maria I. Burdin, Alexander M. Hoyt, Erich |
author_sort |
Filatova, Olga A. |
title |
The diets of humpback whales ( Megaptera novaeangliae) on the shelf and oceanic feeding grounds in the western North Pacific inferred from stable isotope analysis |
title_short |
The diets of humpback whales ( Megaptera novaeangliae) on the shelf and oceanic feeding grounds in the western North Pacific inferred from stable isotope analysis |
title_full |
The diets of humpback whales ( Megaptera novaeangliae) on the shelf and oceanic feeding grounds in the western North Pacific inferred from stable isotope analysis |
title_fullStr |
The diets of humpback whales ( Megaptera novaeangliae) on the shelf and oceanic feeding grounds in the western North Pacific inferred from stable isotope analysis |
title_full_unstemmed |
The diets of humpback whales ( Megaptera novaeangliae) on the shelf and oceanic feeding grounds in the western North Pacific inferred from stable isotope analysis |
title_sort |
diets of humpback whales ( megaptera novaeangliae) on the shelf and oceanic feeding grounds in the western north pacific inferred from stable isotope analysis |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1111/j.1748-7692.2012.00617.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2012.00617.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2012.00617.x |
genre |
Anadyr Anadyr' Humpback Whale Megaptera novaeangliae |
genre_facet |
Anadyr Anadyr' Humpback Whale Megaptera novaeangliae |
op_source |
Marine Mammal Science volume 29, issue 3 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1748-7692.2012.00617.x |
container_title |
Marine Mammal Science |
container_volume |
29 |
container_issue |
3 |
container_start_page |
E253 |
op_container_end_page |
E265 |
_version_ |
1799472631396696064 |