SWFSC Marine Mammal Survey, CSCAPE 2005, Cruise 1627

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 Jeffrey Moore Southwest Fisheries Science Center, NOAA
Data entry Ei Fujioka Duke University


Forney, K. 2014. SWFSC Marine Mammal Survey, CSCAPE 2005, Cruise 1627. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/1055) 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 McArthur II.


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: 1627
Perpendicular distance is not publicly available. Please contact the data
provider 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.
Only minimum required attributes are visible and downloadable online. Other attributes may be obtained upon provider's permission.

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
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 mammals1,150
Sea turtles2
Rays and sharks0
Other species0
Non spatial0
Non species0
Date, Begin2005-06-04
Date, End2005-07-22
Temporal prec.111111
Latitude35.55 - 48.62
Longitude-126.41 - -121.26
Coord. prec.6 decimal digits
Data typeAnimal sighting
EffortYES (ID: 1056)
Traveled (km)2,697
Effort hours145
Contr. through
Sharing policy CC-BY-NC (Minimum)
Also available in OBIS
GBIF (via DOI)
See metadata in static HTML
See metadata in FGDC XML
See download history / statistics