NEFSC 1995 pe9502

National Marine Fisheries Service

The cruise period was from 06 August - 07 September 1995. The area of operation was Georges Bank and waters east of Cape Cod.

The primary objectives of the survey were to: (1) conduct line-transect population surveys within the study area, and (2) investigate cetacean distribution on the southern portion of Georges Bank, principally between the 30 f isobath and 10 nm beyond the 1000 f curve. Secondary objectives included: (1) collecting information on the relationship cetaceans and oceanographic features, (2) the collection of CTD and zooplankton data, (3) conducting marine mammal photographic
identification studies using a rigid bottom inflatable boat and (4) collecting biopsy samples for stock identification and contaminant studies.

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.

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)