Loggerhead turtle movement off the coast of Taiwan
Citation
Parker, D., G. Balazs and J. Polovina. 2015. Loggerhead turtle movement off the coast of Taiwan. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/1304) on yyyy-mm-dd. https://doi.org/10.15468/xntv3g accessed via GBIF.org on 2023-06-03.Description
Original provider: NOAA Pacific Islands Fisheries Science Center (PIFSC) Dataset credits: NOAA Pacific Islands Fisheries Science Center (PIFSC) Abstract: Satellite tags were attached to 34 non-reproductive loggerhead turtles (Caretta caretta) caught as bycatch in the Taiwanese coastal poundnet fishery from 2002 to 2008. Transmission durations ranged from 6 to 503 d (median 172 d), with 5860 d tracked in total. Horizontal track data were processed using the Bayesian state-space modelling to extract the most likely daily positions, taking into account ARGOS data quality and other forms of statistical error. A region of high occupancy in the East China Sea, covering 433 549 km2 of coastal and pelagic area next to Taiwan, China, Japan, and South Korea, was characterized from the tracking data. Various attributes of this hotspot are described using satellite tracks and remotely sensed data. The tracks were merged with oceanographic data, emphasizing a new global dataset characterizing mesoscale eddies from satellite altimetry data. A proximity-probability approach coupled with odds ratio testing was used to infer orientation to eddy features. Comparisons against random points, simulated particle tracks, and drifter buoys were used to demonstrate turtle differential responses to eddies inside and outside the hotspot, depending on eddy features (i.e. cyclonic vs. anticyclonic, edges vs. centres). Turtles inside the hotspot utilize fewer strong cyclonic eddy edges than those outside. Purpose: Define habitat use of loggerhead sea turtle, Caretta caretta in the Pacific Ocean Basin. Supplemental information: Metadata for individual animals / trackings including PTT Type, Duty cycle, Date deployed, Deployment location, Tag nos., Final location, Date terminated, Distance traveled, Transmitting days, Mean Speed of Travel, Capture status are available upon request.Purpose
Define habitat use of loggerhead sea turtle, Caretta caretta in the Pacific Ocean Basin.Sampling Description
Study Extent
NASampling
NAMethod steps
- NA
Additional info
marine, harvested by iOBISTaxonomic Coverages
Scientific names are based on the Integrated Taxonomic Information System (ITIS).
-
Caretta carettacommon name: Loggerhead Sea Turtle rank: species
Geographic Coverages
Taiwan,Pacific,Caretta caretta,Hot spot,China Sea
Bibliographic Citations
Contacts
Denise Parkeroriginator
position: Primary contact
NOAA Pacific Islands Fisheries Science Center
email: denise.m.parker@outlook.com
George Balazs
originator
position: Secondary contact
NOAA Pacific Islands Science Center
email: itsahonuworldinhawaii@hotmail.com
Jeffrey Polovina
originator
position: Secondary contact
NOAA Pacific Islands Fisheries Science Center
email: None
OBIS-SEAMAP
metadata author
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: http://seamap.env.duke.edu
OBIS-SEAMAP
distributor
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: http://seamap.env.duke.edu
Denise Parker
owner
position: Primary contact
NOAA Pacific Islands Fisheries Science Center
email: denise.m.parker@outlook.com
George Balazs
originator
position: Secondary contact
NOAA Pacific Islands Science Center
email: itsahonuworldinhawaii@hotmail.com
Jeffrey Polovina
originator
position: Secondary contact
NOAA Pacific Islands Fisheries Science Center
email: None
Denise Parker
administrative point of contact
position: Primary contact
NOAA Pacific Islands Fisheries Science Center
email: denise.m.parker@outlook.com