SWFSC Marine Mammal Survey, Vaquita 2008, Cruise 1637
NOAA Southwest Fisheries Science Center (SWFSC)
Dataset credit
Marine Mammal and Turtle Division, Southwest Fisheries Science Center, NMFS, NOAA
|
Contacts
Role | Name | Organization | |
Primary contact |
Jeffrey Moore |
Southwest Fisheries Science Center, NOAA |
 |
Secondary contact |
Dave Weller |
NOAA Southwest Fisheries Science Center |
 |
Data entry |
Ei Fujioka |
Duke University |
 |
|
Citation
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. 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.
|
Abstract
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.
|
Purpose
The primary objective was to collect data to estimate the abundance vaquita, or Gulf of California harbor porpoise.
|
Supplemental information
This dataset is supplemental to the following datasets: SWFSC Marine Mammal Survey, Vaquita 1997, Cruise 1608
|
References
|
Attributes
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) |
cruise | Cruise No |
obs_date | Date of the sighting |
obs_time | Time of the sighting (local time zone) |
sighting_no | Sighting No. |
species_org | Species code in original format |
sp_obs | Species code recorded |
sp_tsn | Taxonomic Serial Number added by OBIS-SEAMAP |
latitude | Latitude in decimal degrees |
longitude | Longitude in decimal degrees |
obs_count | Group size |
geom | Geometry field added by OBIS-SEAMAP |
|
|
OBIS-SEAMAP ID | 1067 |
Seabirds | 0 |
Marine mammals | 313 |
Sea turtles | 12 |
Rays and sharks | 0 |
Other species | 0 |
Non spatial | 0 |
Non species | 0 |
Total | 325 |
Date, Begin | 2008-10-16 |
Date, End | 2008-11-25 |
Temporal prec. | 111111 |
Latitude | 30.62 - 31.47 |
Longitude | -114.73 - -114.32 |
Coord. prec. | 2 decimal digits |
Platform | Boat |
Data type | Animal sighting |
Effort | YES (ID: 1068) |
if ($show_effort_stat) {
?>
Traveled (km) | 1,868 |
Effort hours | 190 |
}
if ($sources != null and $sources != "" and $dataset_id != 427) { // Do not show ESAS
?>
Contr. through | |
}
?>
Registered | 2013-12-03 |
Updated | 2021-04-29 |
Status | Published |
Sharing policy |
CC0 no rights reserved |
Shared with |
OBIS
GBIF (via DOI) |
See metadata in static HTML |
See metadata in FGDC XML |
See download history / statistics |
|