Feeding of humpback whales in low latitudes of the Southeast Pacific Ocean

Humpback whales perform long migrations from their breeding and nursing areas at low latitudes to feeding grounds at high latitudes. Nonetheless, this strictly dichotomous paradigm of migration is challenged by accumulating examples of occasional or regular feeding at low latitudes for several stock...

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Autores principales:	Ana M. García Cegarra, Cristina Castro, Koen Van Waerebeek
Formato:	article
Lenguaje:	EN ES
Publicado:	Taylor & Francis Group 2021
Materias:	megaptera novaeangliae feeding grounds trap feeding lunge feeding humboldt current peruvian anchovy phylopatry Ecology QH540-549.5 General. Including nature conservation, geographical distribution QH1-199.5
Acceso en línea:	https://doaj.org/article/655aef3c409144149e9ce51a84dd9a67
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spelling	oai:doaj.org-article:655aef3c409144149e9ce51a84dd9a672021-11-04T15:51:57ZFeeding of humpback whales in low latitudes of the Southeast Pacific Ocean2376-680810.1080/23766808.2021.1971041https://doaj.org/article/655aef3c409144149e9ce51a84dd9a672021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/23766808.2021.1971041https://doaj.org/toc/2376-6808Humpback whales perform long migrations from their breeding and nursing areas at low latitudes to feeding grounds at high latitudes. Nonetheless, this strictly dichotomous paradigm of migration is challenged by accumulating examples of occasional or regular feeding at low latitudes for several stocks worldwide. Here, we report multiple evidences of “Stock G” humpback whales feeding in coastal waters, at low latitudes of the Southeast Pacific Ocean. Lunge feeding behavior and defecation were observed in Ecuador, while both lunge- and trap feeding in pursuit of Peruvian anchovy was documented in northern Chile. A photographically re-sighted individual feeding at different latitudes of Chile suggested potential site fidelity to two foraging areas. Whether these feeding behaviours are novel due to changes in prey distribution, intensifying competition from a growing humpback whale population, or simply reflect vastly increased research effort remains unknown. Further research into the feeding ecology of Stock G should help reveal historic and potentially new feeding grounds, prey composition and precise migration paths. Competition from anchovy fisheries, vessel collision and net entanglement are suspected threats.Ana M. García CegarraCristina CastroKoen Van WaerebeekTaylor & Francis Grouparticlemegaptera novaeangliaefeeding groundstrap feedinglunge feedinghumboldt currentperuvian anchovyphylopatryEcologyQH540-549.5General. Including nature conservation, geographical distributionQH1-199.5ENESNeotropical Biodiversity, Vol 7, Iss 1, Pp 421-430 (2021)
institution	DOAJ
collection	DOAJ
language	EN ES
topic	megaptera novaeangliae feeding grounds trap feeding lunge feeding humboldt current peruvian anchovy phylopatry Ecology QH540-549.5 General. Including nature conservation, geographical distribution QH1-199.5
spellingShingle	megaptera novaeangliae feeding grounds trap feeding lunge feeding humboldt current peruvian anchovy phylopatry Ecology QH540-549.5 General. Including nature conservation, geographical distribution QH1-199.5 Ana M. García Cegarra Cristina Castro Koen Van Waerebeek Feeding of humpback whales in low latitudes of the Southeast Pacific Ocean
description	Humpback whales perform long migrations from their breeding and nursing areas at low latitudes to feeding grounds at high latitudes. Nonetheless, this strictly dichotomous paradigm of migration is challenged by accumulating examples of occasional or regular feeding at low latitudes for several stocks worldwide. Here, we report multiple evidences of “Stock G” humpback whales feeding in coastal waters, at low latitudes of the Southeast Pacific Ocean. Lunge feeding behavior and defecation were observed in Ecuador, while both lunge- and trap feeding in pursuit of Peruvian anchovy was documented in northern Chile. A photographically re-sighted individual feeding at different latitudes of Chile suggested potential site fidelity to two foraging areas. Whether these feeding behaviours are novel due to changes in prey distribution, intensifying competition from a growing humpback whale population, or simply reflect vastly increased research effort remains unknown. Further research into the feeding ecology of Stock G should help reveal historic and potentially new feeding grounds, prey composition and precise migration paths. Competition from anchovy fisheries, vessel collision and net entanglement are suspected threats.
format	article
author	Ana M. García Cegarra Cristina Castro Koen Van Waerebeek
author_facet	Ana M. García Cegarra Cristina Castro Koen Van Waerebeek
author_sort	Ana M. García Cegarra
title	Feeding of humpback whales in low latitudes of the Southeast Pacific Ocean
title_short	Feeding of humpback whales in low latitudes of the Southeast Pacific Ocean
title_full	Feeding of humpback whales in low latitudes of the Southeast Pacific Ocean
title_fullStr	Feeding of humpback whales in low latitudes of the Southeast Pacific Ocean
title_full_unstemmed	Feeding of humpback whales in low latitudes of the Southeast Pacific Ocean
title_sort	feeding of humpback whales in low latitudes of the southeast pacific ocean
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/655aef3c409144149e9ce51a84dd9a67
work_keys_str_mv	AT anamgarciacegarra feedingofhumpbackwhalesinlowlatitudesofthesoutheastpacificocean AT cristinacastro feedingofhumpbackwhalesinlowlatitudesofthesoutheastpacificocean AT koenvanwaerebeek feedingofhumpbackwhalesinlowlatitudesofthesoutheastpacificocean
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Feeding of humpback whales in low latitudes of the Southeast Pacific Ocean

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