Sargasso 2005 - cetacean sightings

David Hyrenbach; Hal Whitehead

doi:10.15468/zvwjwa

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 2022-05-22.

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

NA

Sampling

NA

Method steps

NA

Additional info

marine, harvested by iOBIS

Taxonomic Coverages

Scientific names are based on the Integrated Taxonomic Information System (ITIS).

Stenella frontalis
common name: Atlantic Spotted Dolphin rank: species
Stenella frontalis
common name: Atlantic Spotted Dolphin rank: species
Tursiops truncatus
common name: Common Bottlenose Dolphin rank: species
Delphinus delphis
common name: Short-beaked Common Dolphin rank: species
Megaptera novaeangliae
common name: Humpback Whale rank: species
Peponocephala electra
common name: Melon-headed Whale rank: species
Globicephala
common name: pilot whales rank: genus
Delphinidae
common name: dolphins rank: family
Balaenoptera borealis
common name: Sei Whale rank: species
Physeter macrocephalus
common name: Sperm Whale rank: species
Stenella attenuata
common name: Pantropical Spotted Dolphin rank: species
Tursiops truncatus
common name: Common Bottlenose Dolphin rank: species
Delphinidae
common name: dolphins rank: family
Cetacea
common name: cetaceans rank: order
Mysticeti
common name: baleen whales rank: suborder
Delphinidae
common name: dolphins rank: family
Lagenorhynchus acutus
common name: Atlantic White-sided Dolphin rank: species

Geographic Coverages

Sargasso Sea,Nova Scotia

Bibliographic Citations

Contacts

David Hyrenbach
originator
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