Spatial and seasonal variability in cetacean distribution in the fjords of northern Patagonia, Chile
Compared with other Chilean coastal areas, little is known about the diversity and distribution of cetaceans in northern Patagonian fjords. Between December 2000 and November 2001, surveys on platforms of opportunity were undertaken in southern Chile to evaluate species richness and the spatial and...
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/7df920f5-d0f1-42fc-be4a-a4f4a5803037 2024-06-09T07:44:56+00:00 Spatial and seasonal variability in cetacean distribution in the fjords of northern Patagonia, Chile Viddi, Francisco A. Hucke-Gaete, Rodrigo Torres-Florez, Juan P. Ribeiro, Sandra 2010 https://researchers.mq.edu.au/en/publications/7df920f5-d0f1-42fc-be4a-a4f4a5803037 https://doi.org/10.1093/icesjms/fsp288 eng eng info:eu-repo/semantics/closedAccess Viddi , F A , Hucke-Gaete , R , Torres-Florez , J P & Ribeiro , S 2010 , ' Spatial and seasonal variability in cetacean distribution in the fjords of northern Patagonia, Chile ' , ICES Journal of Marine Science , vol. 67 , no. 5 , pp. 959-970 . https://doi.org/10.1093/icesjms/fsp288 Balaenoptera musculus Cephalorhynchus eutropia cetacean distribution Chilean fjords generalized additive models Lagenorhynchus australis spatial distribution article 2010 ftmacquarieunicr https://doi.org/10.1093/icesjms/fsp288 2024-05-16T14:21:51Z Compared with other Chilean coastal areas, little is known about the diversity and distribution of cetaceans in northern Patagonian fjords. Between December 2000 and November 2001, surveys on platforms of opportunity were undertaken in southern Chile to evaluate species richness and the spatial and seasonal distribution of cetaceans. Nine species were recorded, blue, humpback, and minke whales, Peale's dolphin, Chilean dolphin, killer whale, false killer whale, bottlenose dolphin, and Cuvier's beaked whale. The pattern of cetacean distribution displayed significant seasonal differences, with most baleen whales (mysticetes) observed during late summer and autumn, and toothed cetaceans (odontocetes) mostly during spring. Generalized additive models, used to assess the spatial distribution of cetaceans, showed that mysticetes were distributed disproportionately along a north–south gradient, in open gulfs with oceanic influence, and close to shore. In contrast, odontocetes were observed mainly within narrow channels, areas with complex coastal morphology, peaking at different water depths. These findings, although from a single year of data, increase our understanding of habitat determinants of cetacean distribution in southern Chile. The results have the potential to be applied to coastal conservation and management in the region. Article in Journal/Newspaper Balaenoptera musculus baleen whales Killer Whale Macquarie University Research Portal Patagonia ICES Journal of Marine Science 67 5 959 970 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
topic |
Balaenoptera musculus Cephalorhynchus eutropia cetacean distribution Chilean fjords generalized additive models Lagenorhynchus australis spatial distribution |
spellingShingle |
Balaenoptera musculus Cephalorhynchus eutropia cetacean distribution Chilean fjords generalized additive models Lagenorhynchus australis spatial distribution Viddi, Francisco A. Hucke-Gaete, Rodrigo Torres-Florez, Juan P. Ribeiro, Sandra Spatial and seasonal variability in cetacean distribution in the fjords of northern Patagonia, Chile |
topic_facet |
Balaenoptera musculus Cephalorhynchus eutropia cetacean distribution Chilean fjords generalized additive models Lagenorhynchus australis spatial distribution |
description |
Compared with other Chilean coastal areas, little is known about the diversity and distribution of cetaceans in northern Patagonian fjords. Between December 2000 and November 2001, surveys on platforms of opportunity were undertaken in southern Chile to evaluate species richness and the spatial and seasonal distribution of cetaceans. Nine species were recorded, blue, humpback, and minke whales, Peale's dolphin, Chilean dolphin, killer whale, false killer whale, bottlenose dolphin, and Cuvier's beaked whale. The pattern of cetacean distribution displayed significant seasonal differences, with most baleen whales (mysticetes) observed during late summer and autumn, and toothed cetaceans (odontocetes) mostly during spring. Generalized additive models, used to assess the spatial distribution of cetaceans, showed that mysticetes were distributed disproportionately along a north–south gradient, in open gulfs with oceanic influence, and close to shore. In contrast, odontocetes were observed mainly within narrow channels, areas with complex coastal morphology, peaking at different water depths. These findings, although from a single year of data, increase our understanding of habitat determinants of cetacean distribution in southern Chile. The results have the potential to be applied to coastal conservation and management in the region. |
format |
Article in Journal/Newspaper |
author |
Viddi, Francisco A. Hucke-Gaete, Rodrigo Torres-Florez, Juan P. Ribeiro, Sandra |
author_facet |
Viddi, Francisco A. Hucke-Gaete, Rodrigo Torres-Florez, Juan P. Ribeiro, Sandra |
author_sort |
Viddi, Francisco A. |
title |
Spatial and seasonal variability in cetacean distribution in the fjords of northern Patagonia, Chile |
title_short |
Spatial and seasonal variability in cetacean distribution in the fjords of northern Patagonia, Chile |
title_full |
Spatial and seasonal variability in cetacean distribution in the fjords of northern Patagonia, Chile |
title_fullStr |
Spatial and seasonal variability in cetacean distribution in the fjords of northern Patagonia, Chile |
title_full_unstemmed |
Spatial and seasonal variability in cetacean distribution in the fjords of northern Patagonia, Chile |
title_sort |
spatial and seasonal variability in cetacean distribution in the fjords of northern patagonia, chile |
publishDate |
2010 |
url |
https://researchers.mq.edu.au/en/publications/7df920f5-d0f1-42fc-be4a-a4f4a5803037 https://doi.org/10.1093/icesjms/fsp288 |
geographic |
Patagonia |
geographic_facet |
Patagonia |
genre |
Balaenoptera musculus baleen whales Killer Whale |
genre_facet |
Balaenoptera musculus baleen whales Killer Whale |
op_source |
Viddi , F A , Hucke-Gaete , R , Torres-Florez , J P & Ribeiro , S 2010 , ' Spatial and seasonal variability in cetacean distribution in the fjords of northern Patagonia, Chile ' , ICES Journal of Marine Science , vol. 67 , no. 5 , pp. 959-970 . https://doi.org/10.1093/icesjms/fsp288 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1093/icesjms/fsp288 |
container_title |
ICES Journal of Marine Science |
container_volume |
67 |
container_issue |
5 |
container_start_page |
959 |
op_container_end_page |
970 |
_version_ |
1801373828792713216 |