AMAPPS Southeast Shipboard Cruise Summer 2016

NOAA Southeast Fisheries Science Center (SEFSC)

As part of the AMAPPS program, the Southeast Fisheries
Science Center conducted shipboard surveys of continental
slope and shelf break waters along the US East Coast from
Central Florida to Delaware during 30 June – 19 August,
2016 (designated Cruise code GU16-05). The marine mammal
survey was designed for analysis using Distance sampling,
and a two-team (independent observer) approach was used
to
correct for perception bias in resulting abundance
estimates. Team 1 was stationed on the vessel's flying
bridge (height above the water 13.9 m) and team 2 was
located on the bridge wings (height above the water 11.2
m). Between 20 - 24 August the ship transited into the
Gulf of Mexico and only team 1 was active.

The goal of the survey was to conduct line-transect surveys
using the Distance sampling approach to estimate the
abundance and spatial distribution of cetaceans in the
continental slope and shelf break waters along the US East
Coast.

Trip ID / Dataset ID of this dataset is GU1605.

Perpendicular distance to the animal is not publicly
available.
The dataset is accompanied by transect (effort) data
which
is provided as a separate file.
Sightings included were detected on-effort by the flying
bridge only or by both the flying bridge and bridge wing
teams; you may request the full dataset and sightings
including opportunistic ones directly to the provider.

Environmental Attribute Codes
Beaufort Sea state
0 Calm, mirror like seas
1 Waves <1ft, rippled surface
2 Small wavelets (<2 ft), no white caps
3 Large wavelets (<3ft), scattered white caps
4 Swell 3-4 ft, numerous white caps
5 Swell >5 ft, many white caps, some spray
6 Swell >10 ft, white caps everywhere, spray
Visibility
0 Clear
1 Good
2 Fair
3 Poor
Weather
0 Clear
1 Mist
2 Light Rain
3 Heavy Rain
Cloud Cover
0 Clear
1 0-25% Cloudy
2 26-50% Cloudy
3 51-75% Cloudy
4 76-100% Cloudy
5 Overcast
Glare
0 No Glare
1 <10% of visual field
2 10-25% of visual field
3 26-50% of visual field
4 51-75% of visual field
5 >75% of visual field
Glare intensity
0 No Impairment
1 Slight Impairment
2 Moderate Impairment
3 Severe Impairment
Conditions
0 Poor
1 Fair
2 Moderate
3 Good
4 Excellent

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
oid	Unique ID number (generated by OBIS-SEAMAP)
sightid	Sight ID
comname	Species common name
sp_tsn	Taxonomic Serial Number added by OBIS-SEAMAP
individualcount	Number of animals sighted
latitude	Latitude in decimal degrees (WGS84)
longitude	Longitude in decimal degrees (WGS84)
perpendiculardistance	Perpendicular distance to the animal (m)
eventdate	Date and time of the sighting in local time
transect	Transect No.
beaufort	Beaufort sea state
visibility	Visibility code
weather	Weather code
cloudcover	Cloud cover code
glare	Glare code
glareintensity	Glare intensity code
conditions	Overall conditions code
effortid	Effort ID
tripid	Trip ID
platformvlts	Always V (Vessel)
oneffort	Flag (Y/N) to indicate on effort
sighttype	Sighting type (always F)
datasetid	Dataset ID assigned by provider
datasetname	Dataset name by provider
eventdatetimezone	The time zone of the observation event (UTC)
geom	Geometry field added by OBIS-SEAMAP