NEFSC 1999 aj9902
NOAA Northeast Fisheries Science Center (NEFSC)

Dataset credit

NOAA Northeast Fisheries Science Center (NEFSC)

Contacts

RoleNameOrganization 
Primary contact Debi Palka NOAA Northeast Fisheries Science Center
Data entry Ei Fujioka Duke University

Citation

Abstract

The survey was conducted on the R/V ABEL-J from 28 July to 31 August 1999. It started and returned in Woods Hole, MA. The southern border of the study area was Muscungus Bay, Maine, the northern border was north of Grand Manan Island, Nova Scotia, and the eastern border was Liverpool, Nova Scotia.

Purpose

Primary objectives of the survey were: (1) determine the spatial distribution and abundance of harbor porpoises, (2) determine the spatial distribution and abundance of other strategic species, such as white-sided dolphins, minke whales, fin whales, humpback whales and right whales.

Secondary objectives were: (1) to investigate if a porpoise acoustic detection system, developed by the International Friends for Animal Welfare (IFAW), can passively detect the location of porpoises, which then can be used to improve the abundance estimate of the harbor porpoises, (2) to compare the distribution and abundance of cetaceans with water depth, temperature, salinity, zooplankton and phytoplankton distribution, (3) obtain biopsy samples of cetaceans.

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.

References

Attributes

Overview

Attributes described below represent those in the original dataset provided by the provider.
Only minimum required attributes are visible and downlodable online. Other attributes may be obtained upon provider's permission unless otherwise noted below.

This section explains attributes included in the original dataset. OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only. Should you need other attributes described here, you are encouraged to contact the data provider.

Attributes in dataset provided

Attribute (table column)Description
datasetDataset name
linenoLine number
cruiseCruise number designated by NEFSC
dateDate when the record was recorded
timeTime of the observation (local time)
latitudeLatitude in decimal degrees
longitudeLongitude in decimal degrees
speciesCode of species sighted
commonSpecies common name.
tsnITIS Taxonomic Serial Number added by OBIS-SEAMAP
scientificSpecies scientific name
group_Group name the species belongs to
rankRank such as species, genus and family
herdsizeAn estimate of the number of individuals.
transectTransect no.
legLeg no.
excludedFor internal use
geomGeometry field added by OBIS-SEAMAP
oidUnique ID number (generated by OBIS-SEAMAP)
OBIS-SEAMAP ID300
Seabirds0
Marine mammals1,021
Sea turtles5
Rays and sharks12
Other species53
Non spatial0
Non species0
Total1,091
Date, Begin1999-07-29
Date, End1999-08-27
Temporal prec.111111
Latitude42.89 - 45.05
Longitude-69.66 - -64.95
Coord. prec.3 decimal digits
PlatformBoat
Data typeAnimal sighting
EffortYES (ID: 301)
Traveled (km)2,773
Effort hours171
Registered2005-08-17
Updated2013-11-22
StatusPublished
Sharing policy CC-BY-NC (Minimum)
Also availalbe from iOBIS
OBIS-USA
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See metadata in FGDC XML
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