POPULATION SIZE
The pygmy sperm whale appears to be distributed worldwide in temperate to tropical waters (Caldwell and Caldwell 1989). Sightings of these animals in the northern Gulf of Mexico occur primarily in oceanic waters (Figure 1; Mullin et al. 1991; Mullin and Fulling 2004). Pygmy sperm whales and dwarf sp...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.174.6225 2023-05-15T18:26:46+02:00 POPULATION SIZE Stock Definition Geographic Range The Pennsylvania State University CiteSeerX Archives 2005 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.174.6225 http://www.nefsc.noaa.gov/publications/tm/tm201/pdfs/357-359.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.174.6225 http://www.nefsc.noaa.gov/publications/tm/tm201/pdfs/357-359.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.nefsc.noaa.gov/publications/tm/tm201/pdfs/357-359.pdf text 2005 ftciteseerx 2016-01-07T16:10:26Z The pygmy sperm whale appears to be distributed worldwide in temperate to tropical waters (Caldwell and Caldwell 1989). Sightings of these animals in the northern Gulf of Mexico occur primarily in oceanic waters (Figure 1; Mullin et al. 1991; Mullin and Fulling 2004). Pygmy sperm whales and dwarf sperm whales (Kogia sima) are difficult to differentiate at sea, and sightings of either species are often categorized as Kogia sp. Sightings of this category were documented in all seasons during GulfCet aerial surveys of the northern Gulf of Mexico from 1992 to 1998 (Hansen et al. 1996; Mullin and Hoggard 2000). The difficulty in sighting pygmy and dwarf sperm whales may be exacerbated by their avoidance reaction towards ships, and change in behavior towards approaching survey aircraft (Würsig et al. 1998). In a study using hematological and stable-isotope data, Barros et al. (1998) speculated that dwarf sperm whales may have a more pelagic distribution than pygmy sperm whales, and/or dive deeper during feeding bouts. The Gulf of Mexico population is provisionally being considered a separate stock for management purposes, although there is currently no information to differentiate this stock from the Atlantic Ocean stock(s). Additional morphological, genetic and/or behavioral data are needed to provide further information on stock delineation. Text Sperm whale Unknown Barros ENVELOPE(-62.167,-62.167,-64.717,-64.717) Caldwell ENVELOPE(-101.500,-101.500,-72.083,-72.083) |
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Open Polar |
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Unknown |
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ftciteseerx |
language |
English |
description |
The pygmy sperm whale appears to be distributed worldwide in temperate to tropical waters (Caldwell and Caldwell 1989). Sightings of these animals in the northern Gulf of Mexico occur primarily in oceanic waters (Figure 1; Mullin et al. 1991; Mullin and Fulling 2004). Pygmy sperm whales and dwarf sperm whales (Kogia sima) are difficult to differentiate at sea, and sightings of either species are often categorized as Kogia sp. Sightings of this category were documented in all seasons during GulfCet aerial surveys of the northern Gulf of Mexico from 1992 to 1998 (Hansen et al. 1996; Mullin and Hoggard 2000). The difficulty in sighting pygmy and dwarf sperm whales may be exacerbated by their avoidance reaction towards ships, and change in behavior towards approaching survey aircraft (Würsig et al. 1998). In a study using hematological and stable-isotope data, Barros et al. (1998) speculated that dwarf sperm whales may have a more pelagic distribution than pygmy sperm whales, and/or dive deeper during feeding bouts. The Gulf of Mexico population is provisionally being considered a separate stock for management purposes, although there is currently no information to differentiate this stock from the Atlantic Ocean stock(s). Additional morphological, genetic and/or behavioral data are needed to provide further information on stock delineation. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Stock Definition Geographic Range |
spellingShingle |
Stock Definition Geographic Range POPULATION SIZE |
author_facet |
Stock Definition Geographic Range |
author_sort |
Stock Definition |
title |
POPULATION SIZE |
title_short |
POPULATION SIZE |
title_full |
POPULATION SIZE |
title_fullStr |
POPULATION SIZE |
title_full_unstemmed |
POPULATION SIZE |
title_sort |
population size |
publishDate |
2005 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.174.6225 http://www.nefsc.noaa.gov/publications/tm/tm201/pdfs/357-359.pdf |
long_lat |
ENVELOPE(-62.167,-62.167,-64.717,-64.717) ENVELOPE(-101.500,-101.500,-72.083,-72.083) |
geographic |
Barros Caldwell |
geographic_facet |
Barros Caldwell |
genre |
Sperm whale |
genre_facet |
Sperm whale |
op_source |
http://www.nefsc.noaa.gov/publications/tm/tm201/pdfs/357-359.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.174.6225 http://www.nefsc.noaa.gov/publications/tm/tm201/pdfs/357-359.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766208743214678016 |