Behavioural effects of exposure to underwater explosions in humpback whales ( Megaptera novaeangliae)
Humpback whale (Megaptera novaeangliae) entrapment in nets is a common phenomenon in Newfoundland. In 1991 – 1992, unusually high entrapment rates were recorded in Trinity Bay on the northeast coast of Newfoundland. The majority of cases occurred in the southern portion of the bay close to Mosquito...
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Canadian Science Publishing
1996
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crcansciencepubl:10.1139/z96-184 2024-09-15T18:11:13+00:00 Behavioural effects of exposure to underwater explosions in humpback whales ( Megaptera novaeangliae) Todd, Sean Lien, Jon Marques, Fernanda Stevick, Peter Ketten, Darlene 1996 http://dx.doi.org/10.1139/z96-184 http://www.nrcresearchpress.com/doi/pdf/10.1139/z96-184 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 74, issue 9, page 1661-1672 ISSN 0008-4301 1480-3283 journal-article 1996 crcansciencepubl https://doi.org/10.1139/z96-184 2024-07-18T04:13:35Z Humpback whale (Megaptera novaeangliae) entrapment in nets is a common phenomenon in Newfoundland. In 1991 – 1992, unusually high entrapment rates were recorded in Trinity Bay on the northeast coast of Newfoundland. The majority of cases occurred in the southern portion of the bay close to Mosquito Cove, a site associated with construction operations (including explosions and drilling) that presumably modified the underwater acoustic environment of lower Trinity Bay. This study reports the findings of the resulting assessment conducted in June 1992 on the impact of the industrial activity on humpback whales foraging in the area. Although explosions were characterized by high-energy signatures with principal energies under 1 kHz, humpback whales showed little behavioural reaction to the detonations in terms of decreased residency, overall movements, or general behaviour. However, it appears that the increased entrapment rate may have been influenced by the long-term effects of exposure to deleterious levels of sound. Article in Journal/Newspaper Humpback Whale Megaptera novaeangliae Newfoundland Canadian Science Publishing Canadian Journal of Zoology 74 9 1661 1672 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Humpback whale (Megaptera novaeangliae) entrapment in nets is a common phenomenon in Newfoundland. In 1991 – 1992, unusually high entrapment rates were recorded in Trinity Bay on the northeast coast of Newfoundland. The majority of cases occurred in the southern portion of the bay close to Mosquito Cove, a site associated with construction operations (including explosions and drilling) that presumably modified the underwater acoustic environment of lower Trinity Bay. This study reports the findings of the resulting assessment conducted in June 1992 on the impact of the industrial activity on humpback whales foraging in the area. Although explosions were characterized by high-energy signatures with principal energies under 1 kHz, humpback whales showed little behavioural reaction to the detonations in terms of decreased residency, overall movements, or general behaviour. However, it appears that the increased entrapment rate may have been influenced by the long-term effects of exposure to deleterious levels of sound. |
format |
Article in Journal/Newspaper |
author |
Todd, Sean Lien, Jon Marques, Fernanda Stevick, Peter Ketten, Darlene |
spellingShingle |
Todd, Sean Lien, Jon Marques, Fernanda Stevick, Peter Ketten, Darlene Behavioural effects of exposure to underwater explosions in humpback whales ( Megaptera novaeangliae) |
author_facet |
Todd, Sean Lien, Jon Marques, Fernanda Stevick, Peter Ketten, Darlene |
author_sort |
Todd, Sean |
title |
Behavioural effects of exposure to underwater explosions in humpback whales ( Megaptera novaeangliae) |
title_short |
Behavioural effects of exposure to underwater explosions in humpback whales ( Megaptera novaeangliae) |
title_full |
Behavioural effects of exposure to underwater explosions in humpback whales ( Megaptera novaeangliae) |
title_fullStr |
Behavioural effects of exposure to underwater explosions in humpback whales ( Megaptera novaeangliae) |
title_full_unstemmed |
Behavioural effects of exposure to underwater explosions in humpback whales ( Megaptera novaeangliae) |
title_sort |
behavioural effects of exposure to underwater explosions in humpback whales ( megaptera novaeangliae) |
publisher |
Canadian Science Publishing |
publishDate |
1996 |
url |
http://dx.doi.org/10.1139/z96-184 http://www.nrcresearchpress.com/doi/pdf/10.1139/z96-184 |
genre |
Humpback Whale Megaptera novaeangliae Newfoundland |
genre_facet |
Humpback Whale Megaptera novaeangliae Newfoundland |
op_source |
Canadian Journal of Zoology volume 74, issue 9, page 1661-1672 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z96-184 |
container_title |
Canadian Journal of Zoology |
container_volume |
74 |
container_issue |
9 |
container_start_page |
1661 |
op_container_end_page |
1672 |
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1810448808492924928 |