Seabird and cetacean sightings from Cruise SY002 of RV Shoyo Maru, Tropical Atlantic Ocean, Oct. 2000
Citation
Borsa, P. 2012. Seabird and cetacean sightings from Cruise SY002 of RV Shoyo Maru, Tropical Atlantic Ocean, Oct. 2000. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/729) on yyyy-mm-dd. https://doi.org/10.15468/x5dbhn accessed via GBIF.org on 2024-09-01.Description
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 (Thunnus obesus) 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. Purpose: Mission Objectives:- Recovery of water samples at different depths to measure concentrations of nitrite.
- Recovery of stomachs of tunas caught by longline and species associated.
- 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 Vinciguerria nimbaria. The PICOLO program has highlighted the important role of this prey species for tunas in the equatorial Atlantic.
- Collection of otoliths of bigeye tuna (Thunnus obesus) and yellowfin (Thunnus albacares) caught during fishing operations.
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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.
Supplemental information:
[2020-09-30] The following invalid species names were corrected according to the Integrated Taxonomic Information System (ITIS).
Sooty Tern: Sterna fuscata (176894) => Onychoprion fuscatus (824105)
An additional sea turtle, Caretta caretta was captured on a longline set for tuna, but the exact time and coordinates of that observation were not available.
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).
Purpose
Mission Objectives:- Recovery of water samples at different depths to measure concentrations of nitrite.
- Recovery of stomachs of tunas caught by longline and species associated.
- 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 Vinciguerria nimbaria. The PICOLO program has highlighted the important role of this prey species for tunas in the equatorial Atlantic.
- Collection of otoliths of bigeye tuna (Thunnus obesus) and yellowfin (Thunnus albacares) caught during fishing operations. 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.
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).
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Balaenopteracommon name: baleen whales rank: genus
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Cetaceacommon name: cetaceans rank: order
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Bulweria bulweriicommon name: Bulwer's Petrel rank: species
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Calonectris diomedeacommon name: Cory's Shearwater rank: species
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Delphinidaecommon name: dolphins rank: family
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Globicephalacommon name: pilot whales rank: genus
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Stercorariusrank: genus
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Larusrank: genus
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Charadriiformesrank: order
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Pandion haliaetuscommon name: Osprey rank: species
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Hydrobatidaerank: family
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Phaethonrank: genus
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Puffinus puffinuscommon name: Manx Shearwater rank: species
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Pterodromarank: genus
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Puffinus lherminiericommon name: Audubon's Shearwater rank: species
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Puffinusrank: genus
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Sularank: genus
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Sula dactylatracommon name: Masked Booby rank: species
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Sula sulacommon name: Red-footed Booby rank: species
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Stenella clymenecommon name: Clymene Dolphin rank: species
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Stenellacommon name: spinner dolphins rank: genus
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Onychoprion fuscatuscommon name: Sooty Tern rank: species
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Sternarank: genus
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Sula leucogastercommon name: Brown Booby rank: species
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Sularank: genus
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Cheloniidaecommon name: Sea Turtles rank: family
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Tursiops truncatuscommon name: Common Bottlenose Dolphin rank: species
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Hyperoodontidaerank: family
Geographic Coverages
Oceans
Bibliographic Citations
Contacts
Philippe Borsaoriginator
position: Primary contact
IRD - UR 227 Biocomplexité des écosystèmes récifaux
email: philippe.borsa@ird.fr
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
Philippe Borsa
owner
position: Primary contact
IRD - UR 227 Biocomplexité des écosystèmes récifaux
email: philippe.borsa@ird.fr
Philippe Borsa
administrative point of contact
position: Primary contact
IRD - UR 227 Biocomplexité des écosystèmes récifaux
email: philippe.borsa@ird.fr