Distribution and relative abundance of large whales in a former whaling ground off eastern South America
Ship-based sighting surveys for cetaceans were conducted in the former whaling ground off the northeastern coast of Brazil. The cruises took place in winter and spring of 1998-2001 with the objectives of investigating current distribution and abundance of cetaceans, particularly large whale species...
Published in: | Zoologia (Curitiba) |
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2010
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Online Access: | https://doi.org/10.1590/S1984-46702010000500011 https://doaj.org/article/ae6757e986db4aa9bd1ce7cf27261776 |
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ftdoajarticles:oai:doaj.org/article:ae6757e986db4aa9bd1ce7cf27261776 2023-05-15T14:01:51+02:00 Distribution and relative abundance of large whales in a former whaling ground off eastern South America Artur Andriolo Jesuina M. da Rocha Alexandre N. Zerbini Paulo C. Simões-Lopes Ignacio B. Moreno Alineide Lucena Daniel Danilewicz Manuela Bassoi 2010-10-01T00:00:00Z https://doi.org/10.1590/S1984-46702010000500011 https://doaj.org/article/ae6757e986db4aa9bd1ce7cf27261776 EN eng Pensoft Publishers http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000500011 https://doaj.org/toc/1984-4670 https://doaj.org/toc/1984-4689 doi:10.1590/S1984-46702010000500011 1984-4670 1984-4689 https://doaj.org/article/ae6757e986db4aa9bd1ce7cf27261776 Zoologia (Curitiba), Vol 27, Iss 5, Pp 741-750 (2010) Bryde's whale minke whale sei whale sperm whale South Atlantic Zoology QL1-991 article 2010 ftdoajarticles https://doi.org/10.1590/S1984-46702010000500011 2022-12-31T14:40:02Z Ship-based sighting surveys for cetaceans were conducted in the former whaling ground off the northeastern coast of Brazil. The cruises took place in winter and spring of 1998-2001 with the objectives of investigating current distribution and abundance of cetaceans, particularly large whale species taken during whaling. In 1998 the survey were conducted between the parallels 5°30'W and 9°S and the 200 m isobath and the meridian 033°W. A total of about 3,100 nm were surveyed between 1998 and 2001 Surveys were conducted using line transect methods from about 5-10°S, and from the coast to 33°W. A total of 151 sightings (203 individuals) of large whales were recorded on effort. The Antarctic minke whale - Balaenoptera bonaerensis (Burmeister, 1867) was the most frequently sighted species (97 groups/132 individuals; Sighting Rate [SR] = 0.031 groups/nm), being recorded only in offshore waters. Density gradually increased from August to October. Minke whales were distributed throughout the area, both to the north and the south of former whaling ground. Sighting data indicate this is the most abundant species, particularly in the area beyond the continental shelf break. Breeding behavior was observed for Antarctic minke whales, but few groups containing calves were recorded (4.3% of the groups sighted on effort). Three other large whale species were recorded in low numbers: the Bryde's whale - Balaenoptera edeni (Anderson, 1879)¹; the sei whale, B. borealis (Lesson, 1828), and the sperm, Physeter macrocephalus (Linnaeus, 1758). Sei, Bryde and sperm whales were regularly caught during whaling operations, but are rare in the area, suggesting they were depleted by whaling and have yet to recover to their pre-explotation abundance. In contrast, minke whales are abundant in this area, suggesting that either they were not substantially depleted, or that they have recovered rapidly. Blue whale, Balaenoptera musculus (Linnaeus, 1758), and fin whale, B. physalus (Linnaeus, 1758), not recorded on our surveys, have always been ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Minke whale Balaenoptera bonaerensis Balaenoptera musculus Blue whale Fin whale minke whale Physeter macrocephalus Sei Whale Sperm whale Directory of Open Access Journals: DOAJ Articles Antarctic Bryde ENVELOPE(-63.033,-63.033,-64.867,-64.867) The Antarctic Zoologia (Curitiba) 27 5 741 750 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Bryde's whale minke whale sei whale sperm whale South Atlantic Zoology QL1-991 |
spellingShingle |
Bryde's whale minke whale sei whale sperm whale South Atlantic Zoology QL1-991 Artur Andriolo Jesuina M. da Rocha Alexandre N. Zerbini Paulo C. Simões-Lopes Ignacio B. Moreno Alineide Lucena Daniel Danilewicz Manuela Bassoi Distribution and relative abundance of large whales in a former whaling ground off eastern South America |
topic_facet |
Bryde's whale minke whale sei whale sperm whale South Atlantic Zoology QL1-991 |
description |
Ship-based sighting surveys for cetaceans were conducted in the former whaling ground off the northeastern coast of Brazil. The cruises took place in winter and spring of 1998-2001 with the objectives of investigating current distribution and abundance of cetaceans, particularly large whale species taken during whaling. In 1998 the survey were conducted between the parallels 5°30'W and 9°S and the 200 m isobath and the meridian 033°W. A total of about 3,100 nm were surveyed between 1998 and 2001 Surveys were conducted using line transect methods from about 5-10°S, and from the coast to 33°W. A total of 151 sightings (203 individuals) of large whales were recorded on effort. The Antarctic minke whale - Balaenoptera bonaerensis (Burmeister, 1867) was the most frequently sighted species (97 groups/132 individuals; Sighting Rate [SR] = 0.031 groups/nm), being recorded only in offshore waters. Density gradually increased from August to October. Minke whales were distributed throughout the area, both to the north and the south of former whaling ground. Sighting data indicate this is the most abundant species, particularly in the area beyond the continental shelf break. Breeding behavior was observed for Antarctic minke whales, but few groups containing calves were recorded (4.3% of the groups sighted on effort). Three other large whale species were recorded in low numbers: the Bryde's whale - Balaenoptera edeni (Anderson, 1879)¹; the sei whale, B. borealis (Lesson, 1828), and the sperm, Physeter macrocephalus (Linnaeus, 1758). Sei, Bryde and sperm whales were regularly caught during whaling operations, but are rare in the area, suggesting they were depleted by whaling and have yet to recover to their pre-explotation abundance. In contrast, minke whales are abundant in this area, suggesting that either they were not substantially depleted, or that they have recovered rapidly. Blue whale, Balaenoptera musculus (Linnaeus, 1758), and fin whale, B. physalus (Linnaeus, 1758), not recorded on our surveys, have always been ... |
format |
Article in Journal/Newspaper |
author |
Artur Andriolo Jesuina M. da Rocha Alexandre N. Zerbini Paulo C. Simões-Lopes Ignacio B. Moreno Alineide Lucena Daniel Danilewicz Manuela Bassoi |
author_facet |
Artur Andriolo Jesuina M. da Rocha Alexandre N. Zerbini Paulo C. Simões-Lopes Ignacio B. Moreno Alineide Lucena Daniel Danilewicz Manuela Bassoi |
author_sort |
Artur Andriolo |
title |
Distribution and relative abundance of large whales in a former whaling ground off eastern South America |
title_short |
Distribution and relative abundance of large whales in a former whaling ground off eastern South America |
title_full |
Distribution and relative abundance of large whales in a former whaling ground off eastern South America |
title_fullStr |
Distribution and relative abundance of large whales in a former whaling ground off eastern South America |
title_full_unstemmed |
Distribution and relative abundance of large whales in a former whaling ground off eastern South America |
title_sort |
distribution and relative abundance of large whales in a former whaling ground off eastern south america |
publisher |
Pensoft Publishers |
publishDate |
2010 |
url |
https://doi.org/10.1590/S1984-46702010000500011 https://doaj.org/article/ae6757e986db4aa9bd1ce7cf27261776 |
long_lat |
ENVELOPE(-63.033,-63.033,-64.867,-64.867) |
geographic |
Antarctic Bryde The Antarctic |
geographic_facet |
Antarctic Bryde The Antarctic |
genre |
Antarc* Antarctic Antarctic Minke whale Balaenoptera bonaerensis Balaenoptera musculus Blue whale Fin whale minke whale Physeter macrocephalus Sei Whale Sperm whale |
genre_facet |
Antarc* Antarctic Antarctic Minke whale Balaenoptera bonaerensis Balaenoptera musculus Blue whale Fin whale minke whale Physeter macrocephalus Sei Whale Sperm whale |
op_source |
Zoologia (Curitiba), Vol 27, Iss 5, Pp 741-750 (2010) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000500011 https://doaj.org/toc/1984-4670 https://doaj.org/toc/1984-4689 doi:10.1590/S1984-46702010000500011 1984-4670 1984-4689 https://doaj.org/article/ae6757e986db4aa9bd1ce7cf27261776 |
op_doi |
https://doi.org/10.1590/S1984-46702010000500011 |
container_title |
Zoologia (Curitiba) |
container_volume |
27 |
container_issue |
5 |
container_start_page |
741 |
op_container_end_page |
750 |
_version_ |
1766271913868394496 |