SWFSC Marine Mammal Survey, CADDIS 1995, Cruise 1601

Jay Barlow

doi:10.15468/er2sb9

SWFSC Marine Mammal Survey, CADDIS 1995, Cruise 1601

Citation

Barlow, J. 2004. SWFSC Marine Mammal Survey, CADDIS 1995, Cruise 1601. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/217) on yyyy-mm-dd. https://doi.org/10.15468/er2sb9 accessed via GBIF.org on 2025-05-12.

Description

Original provider: NOAA Southwest Fisheries Science Center (SWFSC) Dataset credits: Marine Mammal and Turtle Division, Southwest Fisheries Science Center, NMFS, NOAA Abstract: The Cetacean Acoustic Detection and Dive Interval Studies (CADDIS) survey was conducted by the NOAA Southwest Fisheries Science Center primarily in the southern Gulf of California aboard NOAA research ship McArthur from early September to early November 1995 for a total of approximately 6,000 kilometers surveyed. The project focused on two potential approaches to improve abundance estimates of long-diving whales: (1) acoustic detection of diving animals, and (2) collecting dive interval data on those species to serve as a basis for a model-based abundance correction factor. This dataset provides the time-date and geographical coordinates, by species/stock, of all cetaceans detected during the survey, as well as the daily and intra-daily start and end points of the line-transect survey. Purpose: The primary purpose of this research was to learn how to better estimate the abundance of long-diving whales during ship line-transect surveys. These whale species, including beaked whales and dwarf and pygmy sperm whales, dive for such long periods of time that there is a high probability that they will never surface within the visual range of observers searching from a moving survey vessel with 25X binoculars.

Purpose

The primary purpose of this research was to learn how to better estimate the abundance of long-diving whales during ship line-transect surveys. These whale species, including beaked whales and dwarf and pygmy sperm whales, dive for such long periods of time that there is a high probability that they will never surface within the visual range of observers searching from a moving survey vessel with 25X binoculars.

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).

Berardius bairdii
common name: Baird's Beaked Whale rank: species
Delphinus capensis
common name: Long-beaked Common Dolphin rank: species
Balaenoptera musculus
common name: Blue Whale rank: species
Tursiops truncatus
common name: Common Bottlenose Dolphin rank: species
Balaenoptera edeni
common name: Eden's whale rank: species
Ziphius cavirostris
common name: Cuvier's Beaked Whale rank: species
Kogia sima
common name: Dwarf Sperm Whale rank: species
Stenella longirostris orientalis
rank: subspecies
Balaenoptera physalus
common name: Fin Whale rank: species
Megaptera novaeangliae
common name: Humpback Whale rank: species
Orcinus orca
common name: Killer Whale rank: species
Caretta caretta
common name: Loggerhead Sea Turtle rank: species
Delphinus delphis
common name: Short-beaked Common Dolphin rank: species
Stenella attenuata
common name: Pantropical Spotted Dolphin rank: species
Lepidochelys olivacea
common name: Olive Ridley rank: species
Lagenorhynchus obliquidens
common name: Pacific White-sided Dolphin rank: species
Mesoplodon peruvianus
common name: Peruvian beaked whale rank: species
Grampus griseus
common name: Risso's Dolphin rank: species
Balaenoptera
common name: baleen whales rank: genus
Steno bredanensis
common name: Rough-toothed Dolphin rank: species
Balaenoptera borealis
common name: Sei Whale rank: species
Globicephala macrorhynchus
common name: Short-finned Pilot Whale rank: species
Physeter macrocephalus
common name: Sperm Whale rank: species
Stenella coeruleoalba
common name: Striped Dolphin rank: species
Ziphius
common name: goose-beaked whales rank: genus
Cetacea
common name: cetaceans rank: order
Delphinus
common name: common dolphins rank: genus
Cetacea
common name: cetaceans rank: order
Cheloniidae
common name: Sea Turtles rank: family
Kogia
common name: pygmy sperm whales rank: genus
Cetacea
common name: cetaceans rank: order
Mesoplodon
common name: beaked whales rank: genus
Stenella attenuata
common name: Pantropical Spotted Dolphin rank: species
Balaenoptera
common name: baleen whales rank: genus
Cheloniidae
common name: Sea Turtles rank: family
Cetacea
common name: cetaceans rank: order
Cetacea
common name: cetaceans rank: order
Mesoplodon
common name: beaked whales rank: genus

Geographic Coverages

Gulf of California,Pacific

Bibliographic Citations

Contacts

Jay Barlow
originator
position: Primary contact
NOAA Southwest Fisheries Science Center
email: Jay.Barlow@noaa.gov

OBIS-SEAMAP
metadata author
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: https://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: https://seamap.env.duke.edu

Jay Barlow
owner
position: Primary contact
NOAA Southwest Fisheries Science Center
email: Jay.Barlow@noaa.gov

Jay Barlow
administrative point of contact
position: Primary contact
NOAA Southwest Fisheries Science Center
email: Jay.Barlow@noaa.gov