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NEFSC Harbor Porpoise 1991
Citation
David Potter, National Marine Fisheries Service. 1991. CRUISE REPORT OF THE HARBOR PORPOISE SURVEY - 1991 AJ91-02

Access data
Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Description
Data of harbor porpoises surveyed in summer 1991 o Nova Scotia. more

The ship survey was performed from 22 July 1991 to 30 August 1991 to estimate the abundance and spatial distribution of harbor porpoises. The study area, covering approximately 13,300 nm , was from Port Clyde, ME to 2 St. John, New Brunswick over to the Nova Scotian coast, up to Liverpool, Nova Scotia.
    PRIMARY OBJECTIVES 1) Estimate the abundance of harbor porpoises in the Gulf of Maine - Bay of Fundy - Nova Scotia area. 2) Investigate if there are any spatial distribution patterns of the harbor porpoises, and if those patterns are correlated with water depth or harbor porpoise group size. SECONDARY OBJECTIVES 1) Estimate the abundance and spatial distribution of other cetaceans. 2) Determine if harbor porpoise avoid this ship, and if so, at what distance. 3) Determine if there is a spatial distribution pattern of mother-calf pairs of harbor porpoise. 4) Compare the abundance estimate and spatial distribution of harbor porpoise as seen this year with that seen in previous years. 5) Investigate if inland bays can be surveyed using a rigidhull inflatable boat as the observation platform in a line transect survey. 6) Determine if Buckland's sighting procedure (1991), which is a line transect survey using both a primary and marking team, is a feasible procedure to estimate the abundance of harbor porpoise in the Bay of Fundy area.

Scope
Themes:
Biology > Fish, Biology > Mammals, Biology > Reptiles
Keywords:
A, North Atlantic, Mammalia, Pisces, Testudines

Geographical coverage
A, North Atlantic [Marine Regions]

Temporal coverage
24 July 1991 - 27 August 1991

Taxonomic coverage
Mammalia [WoRMS]
Pisces [WoRMS]
Testudines [WoRMS]

Contributors
Federal Government of the United States of America; Department of Commerce; National Oceanic and Atmospheric Administration; National Marine Fisheries Service; Northeast Fisheries Science Center (NEFSC), moredata owner
National Oceanic and Atmospheric Administration; National Marine Fisheries Service (NMFS), more

Related datasets
Published in:
OBIS-SEAMAP: Spatial Ecological Analysis of Megavertebrate Populations, more

URLs

Dataset information:

Dataset status: Completed
Data type: Data
Data origin: Research
Metadatarecord created: 2012-11-22
Information last updated: 2012-11-22
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