From land and sea, long-term data reveal persistent humpback whale (Megaptera novaeangliae) breeding habitat in New Caledonia
Long-term monitoring is a prerequisite to understanding and protecting long-lived species such as cetaceans. In New Caledonia, South Pacific, an endangered sub-population of humpback whales (Megaptera novaeangliae) seasonally congregates for mating and nursing during the austral winter. For more tha...
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ftird:oai:ird.fr:fdi:010077208 2024-09-15T18:11:09+00:00 From land and sea, long-term data reveal persistent humpback whale (Megaptera novaeangliae) breeding habitat in New Caledonia Derville, S. Torres, L. G. Dodémont, R. Perard, V. /Garrigue, Claire NOUVELLE CALEDONIE 2019 https://www.documentation.ird.fr/hor/fdi:010077208 EN eng https://www.documentation.ird.fr/hor/fdi:010077208 oai:ird.fr:fdi:010077208 Derville S., Torres L. G., Dodémont R., Perard V., Garrigue Claire. From land and sea, long-term data reveal persistent humpback whale (Megaptera novaeangliae) breeding habitat in New Caledonia. 2019, 29 (10), p. 1697-1711 coastal habitat mapping lagoon mammals monitoring recovery recreation shipping text 2019 ftird 2024-08-15T05:57:41Z Long-term monitoring is a prerequisite to understanding and protecting long-lived species such as cetaceans. In New Caledonia, South Pacific, an endangered sub-population of humpback whales (Megaptera novaeangliae) seasonally congregates for mating and nursing during the austral winter. For more than two decades, dedicated surveys have been conducted at sea and from land to monitor humpback whale presence in a coastal breeding site, the South Lagoon. Methods were developed to investigate space use patterns and their temporal variations over the long term using a joint dataset of boat-based and land-based observations (1995-2017). A total of 2651 humpback whale groups were observed, including 1167 from land and 1484 at sea (of which 30% were initially detected by the land-based observers). Humpback whales displayed a persistent space use pattern over this 23 year period, consistent social composition over the years, and an increase in the group encounter rates from land and at sea. The core area of use by humpback whales was characterized in the austral winter by stable and relatively low sea surface temperature (22 degrees C). Whales consistently occupied nearshore waters from 10 to 200 m deep and open to the ocean. Waters surrounded by dense coral reefs were avoided. Although humpback whale distribution patterns were persistent and occurrence was found to increase over two decades, a mismatch between humpback whale critical habitat and marine protected areas was revealed. In the context of growing anthropogenic pressure from tourism and industrial development, these findings should be incorporated into local management efforts to protect the endangered Oceania humpback whale in one of its main breeding sites. Text Humpback Whale Megaptera novaeangliae IRD (Institute de recherche pour le développement): Horizon |
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IRD (Institute de recherche pour le développement): Horizon |
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English |
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coastal habitat mapping lagoon mammals monitoring recovery recreation shipping |
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coastal habitat mapping lagoon mammals monitoring recovery recreation shipping Derville, S. Torres, L. G. Dodémont, R. Perard, V. /Garrigue, Claire From land and sea, long-term data reveal persistent humpback whale (Megaptera novaeangliae) breeding habitat in New Caledonia |
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coastal habitat mapping lagoon mammals monitoring recovery recreation shipping |
description |
Long-term monitoring is a prerequisite to understanding and protecting long-lived species such as cetaceans. In New Caledonia, South Pacific, an endangered sub-population of humpback whales (Megaptera novaeangliae) seasonally congregates for mating and nursing during the austral winter. For more than two decades, dedicated surveys have been conducted at sea and from land to monitor humpback whale presence in a coastal breeding site, the South Lagoon. Methods were developed to investigate space use patterns and their temporal variations over the long term using a joint dataset of boat-based and land-based observations (1995-2017). A total of 2651 humpback whale groups were observed, including 1167 from land and 1484 at sea (of which 30% were initially detected by the land-based observers). Humpback whales displayed a persistent space use pattern over this 23 year period, consistent social composition over the years, and an increase in the group encounter rates from land and at sea. The core area of use by humpback whales was characterized in the austral winter by stable and relatively low sea surface temperature (22 degrees C). Whales consistently occupied nearshore waters from 10 to 200 m deep and open to the ocean. Waters surrounded by dense coral reefs were avoided. Although humpback whale distribution patterns were persistent and occurrence was found to increase over two decades, a mismatch between humpback whale critical habitat and marine protected areas was revealed. In the context of growing anthropogenic pressure from tourism and industrial development, these findings should be incorporated into local management efforts to protect the endangered Oceania humpback whale in one of its main breeding sites. |
format |
Text |
author |
Derville, S. Torres, L. G. Dodémont, R. Perard, V. /Garrigue, Claire |
author_facet |
Derville, S. Torres, L. G. Dodémont, R. Perard, V. /Garrigue, Claire |
author_sort |
Derville, S. |
title |
From land and sea, long-term data reveal persistent humpback whale (Megaptera novaeangliae) breeding habitat in New Caledonia |
title_short |
From land and sea, long-term data reveal persistent humpback whale (Megaptera novaeangliae) breeding habitat in New Caledonia |
title_full |
From land and sea, long-term data reveal persistent humpback whale (Megaptera novaeangliae) breeding habitat in New Caledonia |
title_fullStr |
From land and sea, long-term data reveal persistent humpback whale (Megaptera novaeangliae) breeding habitat in New Caledonia |
title_full_unstemmed |
From land and sea, long-term data reveal persistent humpback whale (Megaptera novaeangliae) breeding habitat in New Caledonia |
title_sort |
from land and sea, long-term data reveal persistent humpback whale (megaptera novaeangliae) breeding habitat in new caledonia |
publishDate |
2019 |
url |
https://www.documentation.ird.fr/hor/fdi:010077208 |
op_coverage |
NOUVELLE CALEDONIE |
genre |
Humpback Whale Megaptera novaeangliae |
genre_facet |
Humpback Whale Megaptera novaeangliae |
op_relation |
https://www.documentation.ird.fr/hor/fdi:010077208 oai:ird.fr:fdi:010077208 Derville S., Torres L. G., Dodémont R., Perard V., Garrigue Claire. From land and sea, long-term data reveal persistent humpback whale (Megaptera novaeangliae) breeding habitat in New Caledonia. 2019, 29 (10), p. 1697-1711 |
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1810448746656301056 |