Population trends for humpback whales (<scp> Megaptera novaeangliae </scp>) foraging in the Francisco Coloane Coastal‐Marine Protected Area, Magellan Strait, Chile
Abstract In 2003 a feeding aggregation of southeastern Pacific humpback whales ( Megaptera novaeangliae ) was reported in the Magellan Strait. While Chile established its first marine national park in the Strait to protect humpback whale habitat, fatal ship strikes remain a concern because of overla...
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crwiley:10.1111/mms.12582 2024-03-24T09:02:29+00:00 Population trends for humpback whales (<scp> Megaptera novaeangliae </scp>) foraging in the Francisco Coloane Coastal‐Marine Protected Area, Magellan Strait, Chile Monnahan, Cole C. Acevedo, Jorge Noble Hendrix, A. Gende, Scott Aguayo‐Lobo, Anelio Martinez, Francisco Comisión Nacional de Investigación Científica y Tecnológica U.S. Department of State 2019 http://dx.doi.org/10.1111/mms.12582 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12582 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12582 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mms.12582 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 35, issue 4, page 1212-1231 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2019 crwiley https://doi.org/10.1111/mms.12582 2024-02-28T02:15:11Z Abstract In 2003 a feeding aggregation of southeastern Pacific humpback whales ( Megaptera novaeangliae ) was reported in the Magellan Strait. While Chile established its first marine national park in the Strait to protect humpback whale habitat, fatal ship strikes remain a concern because of overlap with a busy shipping lane. To better understand population risk, we estimated abundance and survival for this population using Bayesian robust‐design mark‐recapture models fit to photographic data from 2004 to 2016. Overall, the model estimated a total of 204 whales (95% CI: 199–210) during the last 12 yr, and 93 (95% CI: 86–100) in the 2016/2017 austral summer. The population grew at 2.3% (CI: 2.1%–3.1%), an annual increase of two whales. Annual survival (including calves) was estimated at 0.892 (CI: 0.871–0.910). Our results corroborate a persistent feeding population, but one that is increasing relatively slowly. Owing to its vulnerability stemming from its small size, coupled with significant overlap with a busy shipping lane, we argue this subpopulation is at significant risk from ship strikes and may be one of the few populations where anthropogenic mortalities could regulate population dynamics. We therefore encourage continued monitoring via photographic mark‐resighting surveys, and analyses explicitly investigating potential population‐level ship strike effects. Article in Journal/Newspaper Humpback Whale Megaptera novaeangliae Wiley Online Library Austral Pacific Marine Mammal Science 35 4 1212 1231 |
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Wiley Online Library |
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crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Monnahan, Cole C. Acevedo, Jorge Noble Hendrix, A. Gende, Scott Aguayo‐Lobo, Anelio Martinez, Francisco Population trends for humpback whales (<scp> Megaptera novaeangliae </scp>) foraging in the Francisco Coloane Coastal‐Marine Protected Area, Magellan Strait, Chile |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract In 2003 a feeding aggregation of southeastern Pacific humpback whales ( Megaptera novaeangliae ) was reported in the Magellan Strait. While Chile established its first marine national park in the Strait to protect humpback whale habitat, fatal ship strikes remain a concern because of overlap with a busy shipping lane. To better understand population risk, we estimated abundance and survival for this population using Bayesian robust‐design mark‐recapture models fit to photographic data from 2004 to 2016. Overall, the model estimated a total of 204 whales (95% CI: 199–210) during the last 12 yr, and 93 (95% CI: 86–100) in the 2016/2017 austral summer. The population grew at 2.3% (CI: 2.1%–3.1%), an annual increase of two whales. Annual survival (including calves) was estimated at 0.892 (CI: 0.871–0.910). Our results corroborate a persistent feeding population, but one that is increasing relatively slowly. Owing to its vulnerability stemming from its small size, coupled with significant overlap with a busy shipping lane, we argue this subpopulation is at significant risk from ship strikes and may be one of the few populations where anthropogenic mortalities could regulate population dynamics. We therefore encourage continued monitoring via photographic mark‐resighting surveys, and analyses explicitly investigating potential population‐level ship strike effects. |
author2 |
Comisión Nacional de Investigación Científica y Tecnológica U.S. Department of State |
format |
Article in Journal/Newspaper |
author |
Monnahan, Cole C. Acevedo, Jorge Noble Hendrix, A. Gende, Scott Aguayo‐Lobo, Anelio Martinez, Francisco |
author_facet |
Monnahan, Cole C. Acevedo, Jorge Noble Hendrix, A. Gende, Scott Aguayo‐Lobo, Anelio Martinez, Francisco |
author_sort |
Monnahan, Cole C. |
title |
Population trends for humpback whales (<scp> Megaptera novaeangliae </scp>) foraging in the Francisco Coloane Coastal‐Marine Protected Area, Magellan Strait, Chile |
title_short |
Population trends for humpback whales (<scp> Megaptera novaeangliae </scp>) foraging in the Francisco Coloane Coastal‐Marine Protected Area, Magellan Strait, Chile |
title_full |
Population trends for humpback whales (<scp> Megaptera novaeangliae </scp>) foraging in the Francisco Coloane Coastal‐Marine Protected Area, Magellan Strait, Chile |
title_fullStr |
Population trends for humpback whales (<scp> Megaptera novaeangliae </scp>) foraging in the Francisco Coloane Coastal‐Marine Protected Area, Magellan Strait, Chile |
title_full_unstemmed |
Population trends for humpback whales (<scp> Megaptera novaeangliae </scp>) foraging in the Francisco Coloane Coastal‐Marine Protected Area, Magellan Strait, Chile |
title_sort |
population trends for humpback whales (<scp> megaptera novaeangliae </scp>) foraging in the francisco coloane coastal‐marine protected area, magellan strait, chile |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/mms.12582 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12582 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12582 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mms.12582 |
geographic |
Austral Pacific |
geographic_facet |
Austral Pacific |
genre |
Humpback Whale Megaptera novaeangliae |
genre_facet |
Humpback Whale Megaptera novaeangliae |
op_source |
Marine Mammal Science volume 35, issue 4, page 1212-1231 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/mms.12582 |
container_title |
Marine Mammal Science |
container_volume |
35 |
container_issue |
4 |
container_start_page |
1212 |
op_container_end_page |
1231 |
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1794402828851085312 |