SWFSC Marine Mammal Survey, CSCAPE 2005, Cruise 1628

NOAA Southwest Fisheries Science Center (SWFSC)

Dataset credit

NOAA Southwest Fisheries Science Center (SWFSC)


Primary contact Karin Forney NOAA Southwest Fisheries Science Center
Secondary contact Dave Weller NOAA Southwest Fisheries Science Center
Data entry Ei Fujioka Duke University


Forney, K. 2014. SWFSC Marine Mammal Survey, CSCAPE 2005, Cruise 1628. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/1057) on yyyy-mm-dd.


CSCAPE (Collaborative Survey of Cetacean Abundance and the Pelagic Ecosystem) 2005 was a shipboard survey conducted aboard the NOAA ships David Starr Jordan and McArthur II to assess marine mammals and their ecosystem off the U.S. West Coast. It was designed to survey waters off California, Oregon and Washington from the coast to 300 nmi (556 km) offshore, and to provide additional fine-scale coverage within four of the five
West Coast National Marine Sanctuaries (NMS). This dataset provides the time-date and geographical coordinates, by species/stock, of all cetaceans detected during the survey, as well as the daily and intra-daily start and end points of the line-transect survey by the NOAA Ship David Starr Jordan.


The primary purpose of the survey was to assess the abundance and distribution of marine mammals and seabirds, and to characterize the pelagic ecosystem within the National Marine Sanctuaries and in the ecological context of the broader California Current region.

Supplemental information

[2021-04-13] Updated with additional attributes.

SWFSC MMTD Cruise Number: 1628
Perpendicular distance will be released upon permission by the contributor. Please contact the contributor if needed.

Attribute descriptions for effort data:
dist: Length of the segment (km)
Mode: Effort mode type (C = closing mode; P = passing mode)




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
oidUnique ID number (generated by OBIS-SEAMAP)
eventS = marine mammal sighting; t = sea turtle sighting; p = pinniped sighting
datetimeDate and time of sighting (local time)
latLatitude (decimal degrees) of vessel when sighting was made
lonLongitude (decimal degrees) of vessel when sighting was made
cruiseSWFSC Marine Mammal and Turtle Divison Cruise number
sightnoSighting number (within Cruise)
nspNumber of species observed in the sighting
mixedTRUE for a multi-species sighting (nSp >= 2); FALSE otherwise (nSp = 1)
spcodeSpecies code
sp_tsnTaxonomic Serial Number added by OBIS-SEAMAP
gsspbestThe mean of all observers
gssphighThe mean of all observers
gssplowThe mean of all observers
perpdistkmPerpendicular distance (km) to sighting from trackline; Available upon permission.
bftBeaufort sea state, as assessed by looking upswell with the naked eye.
swellhghtAverage swell height from trough to crest of typical swells (estimated in feet, by eye)
visA measure of air/atmospheric clarity
groupsize_sightnoRunning count ID of all cetacean groups recorded (should be same as SightNo)
groupsize_countNumber of observers that provided a group size estimate (for calculating GsSpBest) for S events.
groupsize_count_obsNumber of unique observer codes per sighting for S events
geomGeometry field added by OBIS-SEAMAP
Marine mammals822
Sea turtles1
Rays and sharks0
Other species0
Non spatial0
Non species0
Date, Begin2005-08-02
Date, End2005-12-06
Temporal prec.111111
Latitude30.31 - 46.71
Longitude-131.01 - -117.53
Coord. prec.6 decimal digits
Data typeAnimal sighting
EffortYES (ID: 1058)
Traveled (km)10,271
Effort hours589
Contr. through
Sharing policy CC0 no rights reserved
Shared with OBIS
GBIF (via DOI)
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See metadata in FGDC XML
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