Site fidelity and movement of humpback whales ( Megaptera novaeangliae ) in the western Gulf of Alaska as revealed by photo-identification
We describe feeding-site fidelity in terms of the rate of annual return by individual humpback whales (Megaptera novaeangliae (Borowski, 1781)) to Kodiak Archipelago and Shumagin Islands feeding areas and the rate of exchange between these Gulf of Alaska feeding aggregations. Individual whales were...
Published in: | Canadian Journal of Zoology |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
2017
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/cjz-2016-0101 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2016-0101 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2016-0101 |
id |
crcansciencepubl:10.1139/cjz-2016-0101 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/cjz-2016-0101 2024-03-03T08:39:32+00:00 Site fidelity and movement of humpback whales ( Megaptera novaeangliae ) in the western Gulf of Alaska as revealed by photo-identification Witteveen, Briana H. Wynne, Kate M. 2017 http://dx.doi.org/10.1139/cjz-2016-0101 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2016-0101 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2016-0101 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 95, issue 3, page 169-175 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2017 crcansciencepubl https://doi.org/10.1139/cjz-2016-0101 2024-02-07T10:53:44Z We describe feeding-site fidelity in terms of the rate of annual return by individual humpback whales (Megaptera novaeangliae (Borowski, 1781)) to Kodiak Archipelago and Shumagin Islands feeding areas and the rate of exchange between these Gulf of Alaska feeding aggregations. Individual whales were photo-identified in both regions between 1999 and 2015 during vessel surveys, either throughout the feeding season (Kodiak region) or in brief 7- to 10-day windows (Shumagin Islands). Feeding-site fidelity was assessed in terms of individuals’ annual return rate, sighting interval, total number of years sighted, and movement between feeding areas. We found similarly high degrees of site fidelity in both regions and limited movement of individuals between them, suggesting that the Shumagin Islands and Kodiak Archipelago represent distinct feeding aggregations. Results did not appear affected by temporal differences in sampling strategy in these study areas. Article in Journal/Newspaper Archipelago Kodiak Megaptera novaeangliae Alaska Canadian Science Publishing Gulf of Alaska Canadian Journal of Zoology 95 3 169 175 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Witteveen, Briana H. Wynne, Kate M. Site fidelity and movement of humpback whales ( Megaptera novaeangliae ) in the western Gulf of Alaska as revealed by photo-identification |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
We describe feeding-site fidelity in terms of the rate of annual return by individual humpback whales (Megaptera novaeangliae (Borowski, 1781)) to Kodiak Archipelago and Shumagin Islands feeding areas and the rate of exchange between these Gulf of Alaska feeding aggregations. Individual whales were photo-identified in both regions between 1999 and 2015 during vessel surveys, either throughout the feeding season (Kodiak region) or in brief 7- to 10-day windows (Shumagin Islands). Feeding-site fidelity was assessed in terms of individuals’ annual return rate, sighting interval, total number of years sighted, and movement between feeding areas. We found similarly high degrees of site fidelity in both regions and limited movement of individuals between them, suggesting that the Shumagin Islands and Kodiak Archipelago represent distinct feeding aggregations. Results did not appear affected by temporal differences in sampling strategy in these study areas. |
format |
Article in Journal/Newspaper |
author |
Witteveen, Briana H. Wynne, Kate M. |
author_facet |
Witteveen, Briana H. Wynne, Kate M. |
author_sort |
Witteveen, Briana H. |
title |
Site fidelity and movement of humpback whales ( Megaptera novaeangliae ) in the western Gulf of Alaska as revealed by photo-identification |
title_short |
Site fidelity and movement of humpback whales ( Megaptera novaeangliae ) in the western Gulf of Alaska as revealed by photo-identification |
title_full |
Site fidelity and movement of humpback whales ( Megaptera novaeangliae ) in the western Gulf of Alaska as revealed by photo-identification |
title_fullStr |
Site fidelity and movement of humpback whales ( Megaptera novaeangliae ) in the western Gulf of Alaska as revealed by photo-identification |
title_full_unstemmed |
Site fidelity and movement of humpback whales ( Megaptera novaeangliae ) in the western Gulf of Alaska as revealed by photo-identification |
title_sort |
site fidelity and movement of humpback whales ( megaptera novaeangliae ) in the western gulf of alaska as revealed by photo-identification |
publisher |
Canadian Science Publishing |
publishDate |
2017 |
url |
http://dx.doi.org/10.1139/cjz-2016-0101 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2016-0101 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2016-0101 |
geographic |
Gulf of Alaska |
geographic_facet |
Gulf of Alaska |
genre |
Archipelago Kodiak Megaptera novaeangliae Alaska |
genre_facet |
Archipelago Kodiak Megaptera novaeangliae Alaska |
op_source |
Canadian Journal of Zoology volume 95, issue 3, page 169-175 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjz-2016-0101 |
container_title |
Canadian Journal of Zoology |
container_volume |
95 |
container_issue |
3 |
container_start_page |
169 |
op_container_end_page |
175 |
_version_ |
1792495127652990976 |