Data from: Humpback whales feed on hatchery-released juvenile salmon
Humpback whales are remarkable for the behavioural plasticity of their feeding tactics and the diversity of their diets. Within the last decade at hatchery release sites in Southeast Alaska, humpback whales have begun exploiting juvenile salmon, a previously undocumented prey. The anthropogenic sour...
Main Authors: | , , , , , |
---|---|
Language: | unknown |
Published: |
2017
|
Subjects: | |
Online Access: | http://nbn-resolving.org/urn:nbn:nl:ui:13-8m-2mmh https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:101461 |
id |
ftdans:oai:easy.dans.knaw.nl:easy-dataset:101461 |
---|---|
record_format |
openpolar |
spelling |
ftdans:oai:easy.dans.knaw.nl:easy-dataset:101461 2023-07-02T03:32:32+02:00 Data from: Humpback whales feed on hatchery-released juvenile salmon Chenoweth, Ellen M. Straley, Janice M. McPhee, Megan V. Atkinson, Shannon Reifenstuhl, Steve Chenoweth, Ellen 2017-06-08T19:39:13.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-8m-2mmh https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:101461 unknown doi:10.5061/dryad.ms75s/1 doi:10.5061/dryad.ms75s/2 doi:10.5061/dryad.ms75s/3 doi:10.5061/dryad.ms75s/4 doi:10.1098/rsos.170180 http://nbn-resolving.org/urn:nbn:nl:ui:13-8m-2mmh doi:10.5061/dryad.ms75s https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:101461 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2017 ftdans https://doi.org/10.5061/dryad.ms75s/110.5061/dryad.ms75s/210.5061/dryad.ms75s/310.5061/dryad.ms75s/410.1098/rsos.17018010.5061/dryad.ms75s 2023-06-13T13:27:22Z Humpback whales are remarkable for the behavioural plasticity of their feeding tactics and the diversity of their diets. Within the last decade at hatchery release sites in Southeast Alaska, humpback whales have begun exploiting juvenile salmon, a previously undocumented prey. The anthropogenic source of these salmon and their important contribution to local fisheries makes the emergence of humpback whale predation a concern for the Southeast Alaska economy. Here, we describe the frequency of observing humpback whales, examine the role of temporal and spatial variables affecting the probability of sighting humpback whales and describe prey capture behaviours at five hatchery release sites. We coordinated twice-daily 15 min observations during the spring release seasons 2010–2015. Using logistic regression, we determined that the probability of occurrence of humpback whales increased after releases began and decreased after releases concluded. The probability of whale occurrence varied among release sites but did not increase significantly over the 6 year study period. Whales were reported to be feeding on juvenile chum, Chinook and coho salmon, with photographic and video records of whales feeding on coho salmon. The ability to adapt to new prey sources may be key to sustaining their population in a changing ocean. Other/Unknown Material Humpback Whale Alaska Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
institution |
Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Chenoweth, Ellen M. Straley, Janice M. McPhee, Megan V. Atkinson, Shannon Reifenstuhl, Steve Chenoweth, Ellen Data from: Humpback whales feed on hatchery-released juvenile salmon |
topic_facet |
Life sciences medicine and health care |
description |
Humpback whales are remarkable for the behavioural plasticity of their feeding tactics and the diversity of their diets. Within the last decade at hatchery release sites in Southeast Alaska, humpback whales have begun exploiting juvenile salmon, a previously undocumented prey. The anthropogenic source of these salmon and their important contribution to local fisheries makes the emergence of humpback whale predation a concern for the Southeast Alaska economy. Here, we describe the frequency of observing humpback whales, examine the role of temporal and spatial variables affecting the probability of sighting humpback whales and describe prey capture behaviours at five hatchery release sites. We coordinated twice-daily 15 min observations during the spring release seasons 2010–2015. Using logistic regression, we determined that the probability of occurrence of humpback whales increased after releases began and decreased after releases concluded. The probability of whale occurrence varied among release sites but did not increase significantly over the 6 year study period. Whales were reported to be feeding on juvenile chum, Chinook and coho salmon, with photographic and video records of whales feeding on coho salmon. The ability to adapt to new prey sources may be key to sustaining their population in a changing ocean. |
author |
Chenoweth, Ellen M. Straley, Janice M. McPhee, Megan V. Atkinson, Shannon Reifenstuhl, Steve Chenoweth, Ellen |
author_facet |
Chenoweth, Ellen M. Straley, Janice M. McPhee, Megan V. Atkinson, Shannon Reifenstuhl, Steve Chenoweth, Ellen |
author_sort |
Chenoweth, Ellen M. |
title |
Data from: Humpback whales feed on hatchery-released juvenile salmon |
title_short |
Data from: Humpback whales feed on hatchery-released juvenile salmon |
title_full |
Data from: Humpback whales feed on hatchery-released juvenile salmon |
title_fullStr |
Data from: Humpback whales feed on hatchery-released juvenile salmon |
title_full_unstemmed |
Data from: Humpback whales feed on hatchery-released juvenile salmon |
title_sort |
data from: humpback whales feed on hatchery-released juvenile salmon |
publishDate |
2017 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-8m-2mmh https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:101461 |
genre |
Humpback Whale Alaska |
genre_facet |
Humpback Whale Alaska |
op_relation |
doi:10.5061/dryad.ms75s/1 doi:10.5061/dryad.ms75s/2 doi:10.5061/dryad.ms75s/3 doi:10.5061/dryad.ms75s/4 doi:10.1098/rsos.170180 http://nbn-resolving.org/urn:nbn:nl:ui:13-8m-2mmh doi:10.5061/dryad.ms75s https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:101461 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.ms75s/110.5061/dryad.ms75s/210.5061/dryad.ms75s/310.5061/dryad.ms75s/410.1098/rsos.17018010.5061/dryad.ms75s |
_version_ |
1770272128183042048 |