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NEFSC Survey 1991
NOAA Northeast Fisheries Science Center (NEFSC)
Dataset credit
NOAA Northeast Fisheries Science Center (NEFSC)
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Contacts
| Role | Name | Organization | |
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| Primary contact |
Debi Palka |
NOAA Northeast Fisheries Science Center |
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| Data entry |
Sloan Freeman |
Duke University |
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Citation
Palka, D. 2014. NEFSC Survey 1991. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/111) 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 aerial survey period was October 11-24, 1991. The survey was completed in 14 days with 8 flight days. The survey was based out of Bangor International Airport in Maine, and covered the Gulf of Maine and Massachusetts Bay area. A total of 42.2 hr were flown, covering over 4,600 mi of trackline.
The survey covered the area of the 1991 harbor porpoise shipboard survey in order to get an indication of the fall distribution of harbor porpoise, and surveyed Massachusetts Bay primarily to determine distribution and density of pilot whales during the time of mass strandings on Cape Cod.
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Purpose
N/A
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Supplemental information
[2014-03-13] The platform of this dataset was incorrect. It was classified as a boat survey but it is an aerial survey.
The metadata also described a wrong survey. These issues are fixed now. The updated abstract was copied from Item 15 in the following URL upon provider's permission:
http://www.nefsc.noaa.gov/publications/tm/tm120/appendices/tm120d.html
In addition to the sightings 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 |
| month | Month |
| day | Day |
| time | Time of the observation (local time) |
| lat | Latitude in decimal degrees |
| long | Longitude in decimal degrees |
| species | Species name |
| size | Group size |
| 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 | 111 |
| Seabirds | 0 |
| Marine mammals | 80 |
| Sea turtles | 0 |
| Rays and sharks | 0 |
| Other species | 0 |
| Non spatial | 0 |
| Non species | 0 |
| Total | 80 |
| Date, Begin | 1991-10-13 |
| Date, End | 1991-10-24 |
| Temporal prec. | 111111 |
| Latitude | 41.76 - 44.60 |
| Longitude | -70.58 - -65.36 |
| Coord. prec. | 3 decimal digits |
| Platform | Plane |
| Data type | Animal sighting |
| Effort | YES (ID: 112) |
| Traveled (km) | 3,343 |
| Effort hours | 17 |
| Contr. through | |
| Registered | 2004-05-25 |
| Updated | 2014-03-13 |
| 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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