Bowhead Whale (Balaena mysticetus) Feeding near Point Barrow, Alaska, During the 1985 Spring Migration

Examination of stomach contents and behavioral observations showed conclusively that bowhead whales were feeding in the Point Barrow area during the spring of 1985. All three bowheads harvested near the village of Barrow had over five litres of pelagic zooplankton (calanoid copepods and euphausiids)...

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Published in:ARCTIC
Main Authors: Carroll, Geoffry M., George, John C., Lowry, Lloyd F., Coyle, Kenneth O.
Format: Article in Journal/Newspaper
Language:English
Published: The Arctic Institute of North America 1987
Subjects:
Online Access:https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64808
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spelling ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/64808 2023-05-15T14:19:14+02:00 Bowhead Whale (Balaena mysticetus) Feeding near Point Barrow, Alaska, During the 1985 Spring Migration Carroll, Geoffry M. George, John C. Lowry, Lloyd F. Coyle, Kenneth O. 1987-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64808 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64808/48722 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64808 ARCTIC; Vol. 40 No. 2 (1987): June: 93–173; 105-110 1923-1245 0004-0843 Animal behaviour Animal food Animal migration Animal respiration Biological sampling Bowhead whales Copepoda Euphausiacea Internal organs Necropsy Barrow Point waters Alaska Alaskan Beaufort Sea info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1987 ftunivcalgaryojs 2022-03-22T21:21:59Z Examination of stomach contents and behavioral observations showed conclusively that bowhead whales were feeding in the Point Barrow area during the spring of 1985. All three bowheads harvested near the village of Barrow had over five litres of pelagic zooplankton (calanoid copepods and euphausiids) in their stomachs. Over 60 whales were observed during the period 26 May through 6 June diving repeatedly under the landfast ice and feeding in an area 11.2 km southwest of Point Barrow. Observers recorded times for dive, surfacing and respiration intervals for these whales. The recorded times were significantly different from those of bowhead whales migrating past Point Barrow in the spring and from bowheads, whose major activity was feeding, recorded in the Canadian Beaufort Sea during the summer and fall.Key words: Balaena mysticetus, Point Barrow, feeding, bowhead whale, behavior, copepod, euphausiid, respiration, spring Un examen du contenu stomacal de baleines franches et des observations de leur comportement ont montré sans aucun doute qu’elles se nourrissaient dans la zone de Point Barrow pendant le printemps de1985. Les trois baleines franches pêchées près du village de Barrow avaient toutes dans l’estomac plus de cinq litres de zooplancton pélagique (copépodes calanoïdes et euphausiacés). Pendant la période allant du 26 mai au 6 juin, on a observé plus de 60 baleines qui plongeaient de façon répétée sous la banquise côtière pour se nourrir dans une zone située à 11,2 km au sud-ouest de Point Barrow. Les observateurs ont noté le moment de la plongée et celui du retour à la surface, et l’intervalle entre les souffles des baleines. Les durées enregistrées étaient nettement différentes de celles mesurées pour des baleines franches qui passaient à Point Barrow pendant leur migration au printemps, et de celles enregistrées dans la mer de Beaufort canadienne en été et en automne pour des baleines franches dont l’activité principale était de se nourrir.Mots clés: Balaena mysticetus, Point Barrow, se nourrir, baleine franche, comportement, copépode, euphausiacé, respiration, printemps Article in Journal/Newspaper Arctic Balaena mysticetus banquise Barrow Beaufort Sea bowhead whale Mer de Beaufort Point Barrow Alaska Copepods University of Calgary Journal Hosting Baleine ENVELOPE(140.012,140.012,-66.649,-66.649) Mer de Beaufort ENVELOPE(-138.005,-138.005,69.500,69.500) Retour ENVELOPE(141.558,141.558,-66.764,-66.764) ARCTIC 40 2
institution Open Polar
collection University of Calgary Journal Hosting
op_collection_id ftunivcalgaryojs
language English
topic Animal behaviour
Animal food
Animal migration
Animal respiration
Biological sampling
Bowhead whales
Copepoda
Euphausiacea
Internal organs
Necropsy
Barrow
Point
waters
Alaska
Alaskan Beaufort Sea
spellingShingle Animal behaviour
Animal food
Animal migration
Animal respiration
Biological sampling
Bowhead whales
Copepoda
Euphausiacea
Internal organs
Necropsy
Barrow
Point
waters
Alaska
Alaskan Beaufort Sea
Carroll, Geoffry M.
George, John C.
Lowry, Lloyd F.
Coyle, Kenneth O.
Bowhead Whale (Balaena mysticetus) Feeding near Point Barrow, Alaska, During the 1985 Spring Migration
topic_facet Animal behaviour
Animal food
Animal migration
Animal respiration
Biological sampling
Bowhead whales
Copepoda
Euphausiacea
Internal organs
Necropsy
Barrow
Point
waters
Alaska
Alaskan Beaufort Sea
description Examination of stomach contents and behavioral observations showed conclusively that bowhead whales were feeding in the Point Barrow area during the spring of 1985. All three bowheads harvested near the village of Barrow had over five litres of pelagic zooplankton (calanoid copepods and euphausiids) in their stomachs. Over 60 whales were observed during the period 26 May through 6 June diving repeatedly under the landfast ice and feeding in an area 11.2 km southwest of Point Barrow. Observers recorded times for dive, surfacing and respiration intervals for these whales. The recorded times were significantly different from those of bowhead whales migrating past Point Barrow in the spring and from bowheads, whose major activity was feeding, recorded in the Canadian Beaufort Sea during the summer and fall.Key words: Balaena mysticetus, Point Barrow, feeding, bowhead whale, behavior, copepod, euphausiid, respiration, spring Un examen du contenu stomacal de baleines franches et des observations de leur comportement ont montré sans aucun doute qu’elles se nourrissaient dans la zone de Point Barrow pendant le printemps de1985. Les trois baleines franches pêchées près du village de Barrow avaient toutes dans l’estomac plus de cinq litres de zooplancton pélagique (copépodes calanoïdes et euphausiacés). Pendant la période allant du 26 mai au 6 juin, on a observé plus de 60 baleines qui plongeaient de façon répétée sous la banquise côtière pour se nourrir dans une zone située à 11,2 km au sud-ouest de Point Barrow. Les observateurs ont noté le moment de la plongée et celui du retour à la surface, et l’intervalle entre les souffles des baleines. Les durées enregistrées étaient nettement différentes de celles mesurées pour des baleines franches qui passaient à Point Barrow pendant leur migration au printemps, et de celles enregistrées dans la mer de Beaufort canadienne en été et en automne pour des baleines franches dont l’activité principale était de se nourrir.Mots clés: Balaena mysticetus, Point Barrow, se nourrir, baleine franche, comportement, copépode, euphausiacé, respiration, printemps
format Article in Journal/Newspaper
author Carroll, Geoffry M.
George, John C.
Lowry, Lloyd F.
Coyle, Kenneth O.
author_facet Carroll, Geoffry M.
George, John C.
Lowry, Lloyd F.
Coyle, Kenneth O.
author_sort Carroll, Geoffry M.
title Bowhead Whale (Balaena mysticetus) Feeding near Point Barrow, Alaska, During the 1985 Spring Migration
title_short Bowhead Whale (Balaena mysticetus) Feeding near Point Barrow, Alaska, During the 1985 Spring Migration
title_full Bowhead Whale (Balaena mysticetus) Feeding near Point Barrow, Alaska, During the 1985 Spring Migration
title_fullStr Bowhead Whale (Balaena mysticetus) Feeding near Point Barrow, Alaska, During the 1985 Spring Migration
title_full_unstemmed Bowhead Whale (Balaena mysticetus) Feeding near Point Barrow, Alaska, During the 1985 Spring Migration
title_sort bowhead whale (balaena mysticetus) feeding near point barrow, alaska, during the 1985 spring migration
publisher The Arctic Institute of North America
publishDate 1987
url https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64808
long_lat ENVELOPE(140.012,140.012,-66.649,-66.649)
ENVELOPE(-138.005,-138.005,69.500,69.500)
ENVELOPE(141.558,141.558,-66.764,-66.764)
geographic Baleine
Mer de Beaufort
Retour
geographic_facet Baleine
Mer de Beaufort
Retour
genre Arctic
Balaena mysticetus
banquise
Barrow
Beaufort Sea
bowhead whale
Mer de Beaufort
Point Barrow
Alaska
Copepods
genre_facet Arctic
Balaena mysticetus
banquise
Barrow
Beaufort Sea
bowhead whale
Mer de Beaufort
Point Barrow
Alaska
Copepods
op_source ARCTIC; Vol. 40 No. 2 (1987): June: 93–173; 105-110
1923-1245
0004-0843
op_relation https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64808/48722
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64808
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