NEFSC Aerial Survey - Summer 1995

NOAA Northeast Fisheries Science Center (NEFSC)

This aerial survey was flown in conjunction with shipboard surveys being conducted during the same time frame. The R/V Abel-J was chartered to conduct line transect surveys offshore from 38 degrees N offshore from approximately 40 fathoms to the Gulf Stream, and north to the Northeast Channel east of Georges Bank, United States. The aerial survey covered all inshore areas from the beach to the 40 fathom boundary of the shipboard survey and extended east to Cape Breton Island, Nova Scotia, Canada.

Collect line transect data to estimate abundance for as many species as possible.

3/8/2006: Data correction - humpback whale was mistakenly linked to Balaenidae (180531). It is now linked to Megaptera novaeangliae (180530). 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.

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
sizeb	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)