https://doi.org/10.82144/1904d1e4 https://seamap.env.duke.edu/dataset/729 https://www.gbif.org/dataset/53c6cfb6-e440-4521-9efe-1a473e7bff28 https://obis.org/dataset/9cf15901-4a85-4615-ad2b-038abcfb5bd7 Philippe Borsa IRD - UR 227 Biocomplexité des écosystèmes récifaux Primary contact philippe.borsa@ird.fr OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

A328 LSRC building Durham NC 27708 US

seamap-contact@duke.edu https://seamap.env.duke.edu OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

A328 LSRC building Durham NC 27708 US

seamap-contact@duke.edu https://seamap.env.duke.edu distributor Philippe Borsa IRD - UR 227 Biocomplexité des écosystèmes récifaux Primary contact philippe.borsa@ird.fr owner 2025-07-31 eng Original provider: Philippe Borsa, Institut de Recherche pour le Developpement, Departement des Ressources Vivantes Dataset credits: Institut de Recherche pour le Developpement, Departement des Ressources Vivantes Abstract: The international program BETYP on the bigeye tuna (<i>Thunnus obesus</i>) allowed us to board the Japanese research vessel Shoyo Maru. During this mission, the longline vessel was rigged to carry out four crossings of the Atlantic Ocean. The mission conducted from September 28 to October 26, 2000 corresponds to the first that crosses the Atlantic from west to east. The first operation of project THETIS (UR No. 109 of the IRD) is focused on the study of predator-prey relationships. The program will study the food and trophic relationships of tunas and associated species in four regions of the Indian Ocean and three of the Atlantic. The platform of the Shoyo Maru in the Atlantic was a good opportunity to collect stomach contents of fish caught by longline. Occurrence GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml Observation GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml Marine Biology Visual sighting Marine Animal Survey Seabirds Marine mammals Sea turtles Visual Sighting Vessel N/A An additional sea turtle, <i>Caretta caretta</i> was captured on a longline set for tuna, but the exact time and coordinates of that observation were not available.<br><br> Records that had an estimated count of “plusieurs” were given a conservative count of “2.” When an estimated range of animals was sighted, the median value (rounded down) was used as the observed count; when a minimum number of animals was recorded, the minimum number was used as the observed count (i.e., >100 = 100 animals). This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License. https://seamap.env.duke.edu/dataset/729 Oceans -78.766667 -24.833333 21.383333 8.266667 2000-10-01 2000-10-21 Scientific names are based on the Integrated Taxonomic Information System (ITIS). genus Balaenoptera Baleen whales species Bulweria bulwerii Bulwer's petrel species Calonectris diomedea Cory's shearwater order Cetacea Cetaceans order Charadriiformes Shore Birds family Cheloniidae Sea turtles family Delphinidae Dolphins genus Globicephala Pilot whales family Hydrobatidae Storm Petrels family Hyperoodontidae Beaked whales genus Larus Gulls species Onychoprion fuscatus Sooty tern species Pandion haliaetus Osprey genus Phaethon Tropicbirds genus Pterodroma genus Puffinus species Puffinus lherminieri Audubon's shearwater species Puffinus puffinus Manx shearwater genus Stenella Spinner dolphins species Stenella clymene Clymene dolphin genus Stercorarius Jaegers genus Sterna Typical Terns genus Sula Boobies species Sula dactylatra Masked booby species Sula leucogaster Brown booby species Sula sula Red-footed booby species Tursiops truncatus Common bottlenose dolphin Mission Objectives: <ul> <li> Recovery of water samples at different depths to measure concentrations of nitrite.</li> <li> Recovery of stomachs of tunas caught by longline and species associated.</li> <li> Study of potential prey for tuna trawling by day and night in the diffusing layer or deep scattering layer (DSL). Particular attention was paid to <i>Vinciguerria nimbaria</i>. The PICOLO program has highlighted the important role of this prey species for tunas in the equatorial Atlantic.</li> <li> Collection of otoliths of bigeye tuna (<i>Thunnus obesus</i>) and yellowfin (<i>Thunnus albacares</i>) caught during fishing operations.</li> For this mission, tissue samples for the study of genetic populations of some species have been collected. Observations of cetaceans and seabirds were also conducted. notPlanned Philippe Borsa IRD - UR 227 Biocomplexité des écosystèmes récifaux Primary contact philippe.borsa@ird.fr NA NA NA Philippe Borsa owner NA zd_729 2025-07-31T15:32:57-04:00 dataset Borsa, P. 2020. Seabird and cetacean sightings from Cruise SY002 of RV Shoyo Maru, Tropical Atlantic Ocean, Oct. 2000. Version 1.6.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/1904d1e4. OBIS-SEAMAP Dataset Page UTF-8 Interactive map https://seamap.env.duke.edu/dataset/729 FGDC Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/729/fgdc EML Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/729/eml OBIS-SEAMAP zd_729 zd_729