NEFSC 1999 aj9902
NOAA Northeast Fisheries Science Center (NEFSC)
Dataset credit
NOAA Northeast Fisheries Science Center (NEFSC)
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Contacts
Role | Name | Organization | |
Primary contact |
Debi Palka |
NOAA Northeast Fisheries Science Center |
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Data entry |
Ei Fujioka |
Duke University |
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Citation
Palka, D. 2013. NEFSC 1999 aj9902. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/300) on yyyy-mm-dd. Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach. 2009. OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributions. Oceanography. 22(2):104-115.
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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.
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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.
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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.
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References
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Attributes
Overview
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 described below represent those in the original dataset provided by the provider.
All attributes are included in the downloadable file (CSV or ESRI File Geodatabase) for "Complete Set of Dataset".
Attributes in dataset
Attribute (table column) | Description |
dataset | Dataset name |
lineno | Line number |
cruise | Cruise number designated by NEFSC |
date | Date when the record was recorded |
time | Time of the observation (local time) |
latitude | Latitude in decimal degrees |
longitude | Longitude in decimal degrees |
species | Code of species sighted |
common | Species common name. |
tsn | ITIS Taxonomic Serial Number added by OBIS-SEAMAP |
scientific | Species scientific name |
group_ | Group name the species belongs to |
rank | Rank such as species, genus and family |
herdsize | An estimate of the number of individuals. |
transect | Transect no. |
leg | Leg no. |
excluded | For internal use |
geom | Geometry field added by OBIS-SEAMAP |
oid | Unique ID number (generated by OBIS-SEAMAP) |
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OBIS-SEAMAP ID | 300 |
Seabirds | 0 |
Marine mammals | 1,021 |
Sea turtles | 5 |
Rays and sharks | 12 |
Other species | 53 |
Non spatial | 0 |
Non species | 0 |
Total | 1,091 |
Date, Begin | 1999-07-29 |
Date, End | 1999-08-27 |
Temporal prec. | 111111 |
Latitude | 42.89 - 45.05 |
Longitude | -69.66 - -64.95 |
Coord. prec. | 3 decimal digits |
Platform | Boat |
Data type | Animal sighting |
Effort | YES (ID: 301) |
if ($show_effort_stat) {
?>
Traveled (km) | 2,773 |
Effort hours | 171 |
}
if ($sources != null and $sources != "" and $dataset_id != 427) { // Do not show ESAS
?>
Contr. through | |
}
?>
Registered | 2005-08-17 |
Updated | 2013-11-22 |
Status | Published |
Sharing policy |
CC0 no rights reserved |
Shared with |
OBIS
GBIF (via DOI) |
See metadata in static HTML |
See metadata in FGDC XML |
See download history / statistics |
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