Harbor Porpoise Survey 1992 (AJ92-01)
Citation
Palka, D. 2013. Harbor Porpoise Survey 1992 (AJ92-01). Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/302) on yyyy-mm-dd. https://doi.org/10.15468/qtr9dy accessed via GBIF.org on 2024-09-01.Description
Original provider: NOAA Northeast Fisheries Science Center (NEFSC) Dataset credits: NOAA Northeast Fisheries Science Center (NEFSC) Abstract: The ship survey was performed from 29 July 1992 to 06 September 1992, starting and ending in Woods Hole, MA. The study area, covering approximately 13,300 nmi2, was from Portland, ME to St. John, New Brunswick over to Port Joli, Nova Scotia on the southeast side of Nova Scotia. Purpose: PRIMARY OBJECTIVE Estimate the abundance of harbor porpoises in the Gulf of Maine - Bay of Fundy - Scotian shelf area. SECONDARY OBJECTIVES 1) Determine the spatial distribution patterns of harbor porpoises, and investigate if the patterns are correlated with hydrographic or biological features, such as, the depth, temperature or salinity of the water or with targets seen on an acoustic fish finder. 2) Estimate the abundance and spatial distribution of other cetaceans. 3) Determine if harbor porpoise avoid this ship, and if so, at what distance. 4) Use a 17 foot Zodiac rigid-hulled inflatable boat (RIB) and the R/V Abel-J to survey the Penobscot Bay - Blue Hill Bay area and other bays and harbors along the Maine and Nova Scotia coast. 5) Determine if there is a spatial distribution pattern of mother-calf pairs of harbor porpoise. 6) Compare the abundance estimate and spatial distribution of harbor porpoise as seen this year with that seen in previous years. 7) Determine dive time patterns of individual and groups of harbor porpoises around the sighting platform. 8) Investigate the utility of 2 new electronic data entry systems. 9) Determine the distribution of marine mammals between the northeastern edge of the study area and Halifax, Nova Scotia, on Brown' s Bank, and on the continental shelfbreak in the area south of Brown' s Bank. Supplemental information: In addition to the sighting data, effort data was recorded every half hour or whenever conditions change. This dataset, therefore, should be used with the effort data.Purpose
PRIMARY OBJECTIVE Estimate the abundance of harbor porpoises in the Gulf of Maine - Bay of Fundy - Scotian shelf area. SECONDARY OBJECTIVES 1) Determine the spatial distribution patterns of harbor porpoises, and investigate if the patterns are correlated with hydrographic or biological features, such as, the depth, temperature or salinity of the water or with targets seen on an acoustic fish finder. 2) Estimate the abundance and spatial distribution of other cetaceans. 3) Determine if harbor porpoise avoid this ship, and if so, at what distance. 4) Use a 17 foot Zodiac rigid-hulled inflatable boat (RIB) and the R/V Abel-J to survey the Penobscot Bay - Blue Hill Bay area and other bays and harbors along the Maine and Nova Scotia coast. 5) Determine if there is a spatial distribution pattern of mother-calf pairs of harbor porpoise. 6) Compare the abundance estimate and spatial distribution of harbor porpoise as seen this year with that seen in previous years. 7) Determine dive time patterns of individual and groups of harbor porpoises around the sighting platform. 8) Investigate the utility of 2 new electronic data entry systems. 9) Determine the distribution of marine mammals between the northeastern edge of the study area and Halifax, Nova Scotia, on Brown' s Bank, and on the continental shelfbreak in the area south of Brown' s Bank.Sampling Description
Study Extent
NASampling
NAMethod steps
- NA
Additional info
marine, harvested by iOBISTaxonomic Coverages
Scientific names are based on the Integrated Taxonomic Information System (ITIS).
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Lagenorhynchus acutuscommon name: Atlantic White-sided Dolphin rank: species
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Balaenopteracommon name: baleen whales rank: genus
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Cetorhinus maximuscommon name: basking shark rank: species
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Delphinidaecommon name: dolphins rank: family
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Balaenopteracommon name: baleen whales rank: genus
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Balaenoptera physaluscommon name: Fin Whale rank: species
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Halichoerus grypuscommon name: Atlantic gray seal rank: species
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Phocoena phocoenacommon name: Harbor Porpoise rank: species
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Phoca vitulinacommon name: Harbor Seal rank: species
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Megaptera novaeangliaecommon name: Humpback Whale rank: species
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Cetaceacommon name: cetaceans rank: order
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Dermochelys coriaceacommon name: Leatherback Sea Turtle rank: species
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Balaenoptera acutorostratacommon name: Minke Whale rank: species
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Eubalaena glacialiscommon name: North Atlantic Right Whale rank: species
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Mola molacommon name: ocean sunfish rank: species
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Globicephalacommon name: pilot whales rank: genus
Geographic Coverages
North Atlantic Ocean
Bibliographic Citations
Contacts
Debi Palkaoriginator
position: Primary contact
NOAA Northeast Fisheries Science Center
email: dpalka@whsun1.wh.whoi.edu
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
Debi Palka
owner
position: Primary contact
NOAA Northeast Fisheries Science Center
email: dpalka@whsun1.wh.whoi.edu
Debi Palka
administrative point of contact
position: Primary contact
NOAA Northeast Fisheries Science Center
email: dpalka@whsun1.wh.whoi.edu