MMS Marine Mammal Survey, PNW 1989-1990

Janet Casey; Glenn Ford

doi:10.15468/py5k5c

MMS Marine Mammal Survey, PNW 1989-1990

Citation

Ford, G. and J. Casey. 2013. MMS Marine Mammal Survey, PNW 1989-1990. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/45) on yyyy-mm-dd. https://doi.org/10.15468/py5k5c accessed via GBIF.org on 2025-05-13.

Description

Original provider: Minerals Management Service Dataset credits: Minerals Management Service Abstract: This dataset is from the Oregon and Washington marine mammal and seabird surveys studies: Oregon/Washington aerial [mammal observations] study code: OM, Contract number: 14-12-0001-30426, Principal investigators: G. A. Green, Ebasco Environmental, Bellevue, Washington, M. L. Bonnell and K. T. Briggs, Ecological Consulting, Inc., Portland, Oregon. Time period: April 1989 through October 1990 Study area: Pacific Ocean waters of Oregon and Washington from the coast to approximately 60 nautical miles offshore. Methodology: Aerial surveys were conducted along 32 pre-established transects designed to systematically sample marine mammal and seabird abundance in all waters of the study area. Coastal surveys and one shelf break survey were also conducted. Standard transects provided systematic coverage of shelf, slope, and offshore waters in the study area. Sightings of seabirds, pinnipeds, cetaceans, and turtles were recorded. Seabird sightings were recorded only on the shaded side of the aircraft within a strip transect of 50 m width. Marine mammal and turtle sightings were recorded within an unbounded corridor. Declination angle was measured and noted for each marine mammal/turtle sightings and later used to calculate a probability density function of frequency with right-angle sighting distance. Navigation was by Loran and VLF-Omega. One ship survey was also conducted from aboard the NOAA ship Miller Freeman during August 1989. Databases produced: 1) sightings of seabirds and marine mammals on 12 aerial surveys and one ship cruise, and 2) sightings of cetaceans on 12 aerial surveys and one ship cruise. Purpose: Objectives of the study were to review and analyze all available literature and databases concerning marine mammal and seabird diversity, distribution, and abundance in the Oregon-Washington coastal and offshore areas, to conduct field surveys over a 18-month period, and to prepare reports summarizing the findings. Supplemental information: [2015-03-24] A few records had a wrong animal count of zero. The value is replaced with an blank representing species presence only.

Purpose

Objectives of the study were to review and analyze all available literature and databases concerning marine mammal and seabird diversity, distribution, and abundance in the Oregon-Washington coastal and offshore areas, to conduct field surveys over a 18-month period, and to prepare reports summarizing the findings.

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).

Balaenoptera acutorostrata
common name: Minke Whale rank: species
Balaenoptera physalus
common name: Fin Whale rank: species
Berardius bairdii
common name: Baird's Beaked Whale rank: species
Callorhinus ursinus
common name: Northern Fur Seal rank: species
Dermochelys coriacea
common name: Leatherback Sea Turtle rank: species
Coryphaena hippurus
common name: dolphinfish rank: species
Enhydra lutris
common name: Sea Otter rank: species
Eschrichtius robustus
common name: Gray Whale rank: species
Eumetopias jubatus
common name: Steller Sea Lion rank: species
Grampus griseus
common name: Risso's Dolphin rank: species
Kogia
common name: pygmy sperm whales rank: genus
Lagenorhynchus obliquidens
common name: Pacific White-sided Dolphin rank: species
Cetacea
common name: cetaceans rank: order
Lissodelphis borealis
common name: Northern Right Whale Dolphin rank: species
Megaptera novaeangliae
common name: Humpback Whale rank: species
Mesoplodon
common name: beaked whales rank: genus
Mirounga angustirostris
common name: Northern Elephant Seal rank: species
Orcinus orca
common name: Killer Whale rank: species
Otariidae
common name: eared seals rank: family
Phoca vitulina
common name: Harbor Seal rank: species
Phocoena phocoena
common name: Harbor Porpoise rank: species
Phocoenoides dalli
common name: Dall's Porpoise rank: species
Physeter macrocephalus
common name: Sperm Whale rank: species
Caniformia
common name: pinnipeds rank: suborder
Cetacea
common name: cetaceans rank: order
Cetacea
common name: cetaceans rank: order
Zalophus californianus
common name: California Sea Lion rank: species

Geographic Coverages

Northeastern Pacific Ocean

Bibliographic Citations

Contacts

Janet Casey
originator
position: Primary contact
Janet Casey
email: None

Glenn Ford
originator
position: Primary contact
Glenn Ford
email: eci@teleport.com

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

Janet Casey
owner
position: Primary contact
Janet Casey
email: None

Glenn Ford
owner
position: Primary contact
Glenn Ford
email: eci@teleport.com

Janet Casey
administrative point of contact
position: Primary contact
Janet Casey
email: None

Glenn Ford
administrative point of contact
position: Primary contact
Glenn Ford
email: eci@teleport.com