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NEFSC 1995 AJ9501 (Part II)
Citation
David Potter, National Marine Fisheries Service. 1995. CRUISE RESULTS; R/V ABEL-J; Cruise No. AJ-95-01 (Part II); Summer Marine Mammal Survey

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

Description
Data of marine mammal sightings in 1995 beginning and ending in Woods Hole, MA as part of a large scale survey. more

The ship survey was conducted from 06 August 1995 to 05 September 1995, beginning and ending in Woods Hole, MA. The study area covered approximately 12,600 nmi2 , and included the area bounded by Portland, ME to St. John, New Brunswick, to the southern tip of Nova Scotia. This cruise was part of a large scale marine mammal sighting survey which consisted of two legs (each approximately a month long) on each of two ships, and a six week aerial survey which was conducted concurrently with vessel operations. The entire study area was from Chesapeake Bay, VA, USA to the Gulf of St. Lawrence, Canada. The objectives of this survey were to:
    1) Estimate the abundance of harbor porpoises in the Gulf of Maine - Bay of Fundy - Scotian shelf area using two different field collection and analysis methods. 2) Determine the spatial distribution and estimate the abundance of other cetaceans found in the above area. 3) Conduct a comparison between sighting rates and spatial distribution of harbor porpoises as seen by two different types of sighting platforms, a ship (the R/V ABEL-J) and an aircraft. 4) Determine spatial distribution patterns of harbor porpoises, and investigate if the patterns are correlated with hydrographic or biological features, such as, water depth, temperature or salinity. 5) Determine if harbor porpoises avoid this ship, and if so, at what distance. 6) Compare the abundance estimate and spatial distribution of harbor porpoises as seen this year with that seen in previous years.

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

    Geographical coverage
    A, North Atlantic [Marine Regions]

    Temporal coverage
    7 August 1995 - 4 September 1995

    Taxonomic coverage
    Mammalia [WoRMS]
    Pisces [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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