Sargasso 2005 - cetacean sightings
Citation
Hyrenbach, D. and H. Whitehead. 2013. Sargasso 2005 - cetacean sightings. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/332) on yyyy-mm-dd. https://doi.org/10.15468/zvwjwa accessed via GBIF.org on 2024-09-01.Description
Original provider: Dalhousie University Dataset credits: Hal Whitehead, Department of Biology, Dalhousie University Abstract: The Sargasso Sea cruise surveyed marine mammals in the Northeast Atlantic Ocean, during the spring and summer of 2005. This survey onboard the Valiant 40 ocean-going research vessel Balaena, consisted of two survey legs: a sail from the Caribbean to offshore waters north of the Bahamas (April 19 - June 2), and a sail north to Halifax, Nova Scotia. Sperm whales were surveyed using acoustics and visual techniques during both cruise legs by members of the Hal Whitehead laboratory. Purpose: The purpose of this cruise was to study the behavior (principally social organization), ecology, and population biology of sperm whales. This is the second study year, after a similar cruise in the summer of 2004. Supplemental information: This dataset includes cetacean observations and survey effort. The survey track was recorded by logging a position every 10 minutes using the vessel's GPS. The cetacean observations includes sightings during surveys (on effort) and during focal follows of sperm whale schools (off effort). There are two types records for sperm whale, census and encounter. Encounters, which are defined as events where researchers observe whales by sight or acoustic techniques, are denoted 'S' (survey), 'E' (encounter), or 'AE' (acoustic encounter) in the [Enctr_type] field. These records do not have animal counts recorded, and count field for these records is null in the dataset. In addition to encounters, this dataset includes sightings during 'census' surveys, which include group size data, as well as information on the radial distance and angle to each sighting. These survey metadata are available from the primary data providers. Census records have non-zero animal counts as for other species. They are denoted C in [Enctr_type] field. Note that the [Enctr_type] field is not downloadable by the public, but may be available by request. Please request this data after obtaining permission from the primary data providers.Purpose
The purpose of this cruise was to study the behavior (principally social organization), ecology, and population biology of sperm whales. This is the second study year, after a similar cruise in the summer of 2004.Sampling Description
Study Extent
NASampling
NAMethod steps
- NA
Additional info
marine, harvested by iOBISTaxonomic Coverages
Scientific names are based on the Integrated Taxonomic Information System (ITIS).
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Stenella frontaliscommon name: Atlantic Spotted Dolphin rank: species
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Stenella frontaliscommon name: Atlantic Spotted Dolphin rank: species
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Tursiops truncatuscommon name: Common Bottlenose Dolphin rank: species
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Delphinus delphiscommon name: Short-beaked Common Dolphin rank: species
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Megaptera novaeangliaecommon name: Humpback Whale rank: species
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Peponocephala electracommon name: Melon-headed Whale rank: species
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Globicephalacommon name: pilot whales rank: genus
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Delphinidaecommon name: dolphins rank: family
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Balaenoptera borealiscommon name: Sei Whale rank: species
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Physeter macrocephaluscommon name: Sperm Whale rank: species
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Stenella attenuatacommon name: Pantropical Spotted Dolphin rank: species
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Tursiops truncatuscommon name: Common Bottlenose Dolphin rank: species
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Delphinidaecommon name: dolphins rank: family
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Cetaceacommon name: cetaceans rank: order
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Mysticeticommon name: baleen whales rank: suborder
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Delphinidaecommon name: dolphins rank: family
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Lagenorhynchus acutuscommon name: Atlantic White-sided Dolphin rank: species
Geographic Coverages
Sargasso Sea,Nova Scotia
Bibliographic Citations
Contacts
David Hyrenbachoriginator
position: Primary contact
Duke University Marine Laboratory
email: khyrenba@u.washington.edu
homepage: http://www.nicholas.duke.edu/people/faculty/hyrenbach.html
Hal Whitehead
originator
position: Primary contact
Dalhousie University
email: hwhitehe@dal.ca
homepage: http://whitelab.biology.dal.ca
OBIS-SEAMAP
metadata author
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: http://seamap.env.duke.edu
OBIS-SEAMAP
distributor
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: http://seamap.env.duke.edu
David Hyrenbach
owner
position: Primary contact
Duke University Marine Laboratory
email: khyrenba@u.washington.edu
homepage: http://www.nicholas.duke.edu/people/faculty/hyrenbach.html
Hal Whitehead
owner
position: Primary contact
Dalhousie University
email: hwhitehe@dal.ca
homepage: http://whitelab.biology.dal.ca
David Hyrenbach
administrative point of contact
position: Primary contact
Duke University Marine Laboratory
email: khyrenba@u.washington.edu
homepage: http://www.nicholas.duke.edu/people/faculty/hyrenbach.html
Hal Whitehead
administrative point of contact
position: Primary contact
Dalhousie University
email: hwhitehe@dal.ca
homepage: http://whitelab.biology.dal.ca