SWFSC Marine Mammal Survey, Vaquita 2008, Cruise 1637
Marine Mammal and Turtle Division, Southwest Fisheries Science Center, NMFS, NOAA
Gerrodette, T. 2014. SWFSC Marine Mammal Survey, Vaquita 2008, Cruise 1637. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/1067) on yyyy-mm-dd.
Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach. 2009. OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributions. Oceanography. 22(2):104-115.
The 2008 Vaquita Expedition was a joint US-Mexican effort to provide the best scientific data possible to aid the government of Mexico in conservation decisions for the vaquita. The study area was the northern end of the Gulf of California south to about 30.8 degrees north latitude. A line-transect survey of the deeper water of the study area was conducted by the NOAA Southwest Fisheries Science Center aboard the NOAA ship David Starr Jordan in October and November 2008. 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.
The primary objective was to collect data to estimate the abundance vaquita, or Gulf of California harbor porpoise.
This dataset is supplemental to the following datasets:
SWFSC Marine Mammal Survey, Vaquita 1997, Cruise 1608
Henry, Annette, Barbara Taylor, Lorenzo Rojas-Bracho, Shannon Rankin, Armando Jaramillo-Legoretta, Tom Akamatsu, Jay Barlow, Tim Gerrodette, Candice Hall, Alan Jackson, Jessica Redfern, Rene Swift and Nick Tregenza. 2012. Cruise report for the Vaquita Expedition in 2008 conducted aboard NOAA Ship David Starr Jordan, R/V Koipai Yu-Xa, and the Vaquita Express. NOAA-TM-NMFS-SWFSC-495.
Attributes described below represent those in the original dataset provided by the provider.
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 in dataset provided
|Rays and sharks||0|
|Latitude||30.62 - 31.47|
|Longitude||-114.73 - -114.32|
|Coord. prec.||2 decimal digits|
|Data type||Animal sighting|
|Effort||YES (ID: 1068)|
|Sharing policy||CC-BY-NC (Minimum)|
|Also availalbe from||iOBIS|
|See metadata in static HTML|
|See metadata in FGDC XML|
|See download history / statistics|