NEFSC Survey 1998 2
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 |
Benjamin Best |
Duke University |
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Citation
Palka, D. 2013. NEFSC Survey 1998 2. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/62) 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 performed on the R/V Abel-J from 6 July to 4 August 1998 (Leg I), and from 8 August to 6 September 1998 (Leg II) starting and ending in Woods Hole, Massachusetts. The study areas in Leg I and Leg II, respectively, were from Cape Cod, Massachusetts to Virginia, and from Cape Cod, Massachusetts to Halifax, Nova Scotia, Canada. Both study areas extended from the 100 m depth contour to the Gulf Stream.
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Purpose
Primary objectives of the survey were: 1) Estimate the abundance of strategic species of pelagic dolphins and whales, such as common, spotted, and bottlenose dolphins, and sperm, pilot, and beaked whales, and 2) Estimate the abundance of all other dolphins and whales detected in these waters.
Secondary objectives included: 1) Collect bongo, CTD, water depth and temperature data to correlate with the spatial distribution of the marine mammals, 2) Conduct marine mammal photographic and video identification studies, and 3) Collect biopsy samples.
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Supplemental information
In addition to the sighting data, effort data were recorded every half hour or whenever conditions changed. 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 |
cruise | Cruise ID |
year | Year of observation |
month | Month of observation |
day | Day of observation |
time | Time of the observation (local time) |
lat | Latitude of observation |
long | Longitude of observation |
species | Species observed |
sizeb | Number of animals |
transect | Transect No |
leg | Leg No |
blank | Blank field |
geom | Geometry field added by OBIS-SEAMAP |
oid | Unique ID number (generated by OBIS-SEAMAP) |
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OBIS-SEAMAP ID | 62 |
Seabirds | 0 |
Marine mammals | 309 |
Sea turtles | 6 |
Rays and sharks | 0 |
Other species | 0 |
Non spatial | 0 |
Non species | 0 |
Total | 315 |
Date, Begin | 1998-08-09 |
Date, End | 1998-08-31 |
Temporal prec. | 111111 |
Latitude | 39.40 - 42.10 |
Longitude | -69.13 - -64.80 |
Coord. prec. | 3 decimal digits |
Platform | Boat |
Data type | Animal sighting |
Effort | YES (ID: 63) |
if ($show_effort_stat) {
?>
Traveled (km) | 1,606 |
Effort hours | 100 |
}
if ($sources != null and $sources != "" and $dataset_id != 427) { // Do not show ESAS
?>
Contr. through | |
}
?>
Registered | 2004-02-13 |
Updated | 2018-10-06 |
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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