SST fronts and the summer sperm whale distribution in the north-west Mediterranean Sea
The relative distribution of sperm whales ( Physeter macrocephalus ) and sea surface temperature (SST) fronts have been studied in summer in the north-western Mediterranean Sea. We used passive acoustic data (778 samples) obtained offshore during dedicated surveys between 1999 and 2004 and Pathfinde...
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Cambridge University Press (CUP)
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Online Access: | http://dx.doi.org/10.1017/s0025315407054689 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315407054689 |
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crcambridgeupr:10.1017/s0025315407054689 2024-06-16T07:42:44+00:00 SST fronts and the summer sperm whale distribution in the north-west Mediterranean Sea Gannier, Alexandre Praca, Emilie 2007 http://dx.doi.org/10.1017/s0025315407054689 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315407054689 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of the Marine Biological Association of the United Kingdom volume 87, issue 1, page 187-193 ISSN 0025-3154 1469-7769 journal-article 2007 crcambridgeupr https://doi.org/10.1017/s0025315407054689 2024-05-22T12:56:26Z The relative distribution of sperm whales ( Physeter macrocephalus ) and sea surface temperature (SST) fronts have been studied in summer in the north-western Mediterranean Sea. We used passive acoustic data (778 samples) obtained offshore during dedicated surveys between 1999 and 2004 and Pathfinder/Modis remote sensing data to compute front maps and to calculate mean distances from sperm whale detections (N=132) to SST-fronts. Mean distances from sperm whale acoustic detections to SST-fronts were significantly lower (10.4 km) than from other acoustic samples to those fronts (17.0 km). The same result was obtained when calculating distances from sperm whales to the North Balearic Front surface signature. If sperm whales are commonly observed along the continental slope, we showed that offshore individuals were located close to SST-fronts. This bimodal distribution in the north-western Mediterranean is linked to sperm whale feeding strategy, demonstrating ecological opportunistic behaviour in this high level predator. Article in Journal/Newspaper Physeter macrocephalus Sperm whale Cambridge University Press Journal of the Marine Biological Association of the United Kingdom 87 1 187 193 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
The relative distribution of sperm whales ( Physeter macrocephalus ) and sea surface temperature (SST) fronts have been studied in summer in the north-western Mediterranean Sea. We used passive acoustic data (778 samples) obtained offshore during dedicated surveys between 1999 and 2004 and Pathfinder/Modis remote sensing data to compute front maps and to calculate mean distances from sperm whale detections (N=132) to SST-fronts. Mean distances from sperm whale acoustic detections to SST-fronts were significantly lower (10.4 km) than from other acoustic samples to those fronts (17.0 km). The same result was obtained when calculating distances from sperm whales to the North Balearic Front surface signature. If sperm whales are commonly observed along the continental slope, we showed that offshore individuals were located close to SST-fronts. This bimodal distribution in the north-western Mediterranean is linked to sperm whale feeding strategy, demonstrating ecological opportunistic behaviour in this high level predator. |
format |
Article in Journal/Newspaper |
author |
Gannier, Alexandre Praca, Emilie |
spellingShingle |
Gannier, Alexandre Praca, Emilie SST fronts and the summer sperm whale distribution in the north-west Mediterranean Sea |
author_facet |
Gannier, Alexandre Praca, Emilie |
author_sort |
Gannier, Alexandre |
title |
SST fronts and the summer sperm whale distribution in the north-west Mediterranean Sea |
title_short |
SST fronts and the summer sperm whale distribution in the north-west Mediterranean Sea |
title_full |
SST fronts and the summer sperm whale distribution in the north-west Mediterranean Sea |
title_fullStr |
SST fronts and the summer sperm whale distribution in the north-west Mediterranean Sea |
title_full_unstemmed |
SST fronts and the summer sperm whale distribution in the north-west Mediterranean Sea |
title_sort |
sst fronts and the summer sperm whale distribution in the north-west mediterranean sea |
publisher |
Cambridge University Press (CUP) |
publishDate |
2007 |
url |
http://dx.doi.org/10.1017/s0025315407054689 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315407054689 |
genre |
Physeter macrocephalus Sperm whale |
genre_facet |
Physeter macrocephalus Sperm whale |
op_source |
Journal of the Marine Biological Association of the United Kingdom volume 87, issue 1, page 187-193 ISSN 0025-3154 1469-7769 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0025315407054689 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
87 |
container_issue |
1 |
container_start_page |
187 |
op_container_end_page |
193 |
_version_ |
1802010279499792384 |