6 documents found, page 1 of 1
Sea turtles in the Atlantic and Indian Oceans, a step towards understanding byc...
Domingo, Andrés; Baéz, José Carlos; Miller, Philip; Parker, Denham; Ramos, María Lourdes; Sabarros, Philippe S.; Brown, Craig; Camiñas, Juan AntonioKnowledge of the spatiotemporal behavior and interactions with fishing gear of bycatch species is essential to improve conservation and fisheries management strategies. We analyze fine-scale data from onboard observers, covering 25 fishing fleets from 2002 through 2018, to assess temporal trends and spatial variation in sea turtle bycatch in longline and purse seine tuna fisheries in the Atlantic and Indian oce...
Spatial and temporal size distribution of swordfish in the Atlantic Ocean: impl...
Rosa, Daniela; Schirripa, Michael; Gillespie, Kyle; Macías, David; Forselledo, Rodrigo; Mourato, Bruno; Kai, Mikihiko; Arocha, Freddy; Su, Nan-JaySwordfish (Xiphias gladius) is a common target species of surface pelagic longline fisheries. In the Atlantic Ocean and Mediterranean Sea, swordfish is managed as three separate stocks, all having management measures in place to rebuild or conserve the stocks, including minimum landing sizes. The objective of this study was to review size data for swordfish in the Atlantic Ocean, model the sex-specific size dis...
Challenges and opportunities in monitoring and mitigating sea turtle bycatch in...
Baéz, Jose Carlos; Domingo, Andrés; Murua, Hilario; Macías, David; Camiñas, Juan Antonio; Poisson, Francois; Jorda, María José Juan; López, JonFisheries that target tunas and tuna-like species are managed by tuna regional fisheries management organizations (t-RFMO) and are known to interact with various bycatch species, including sea turtles, with potentially negative effects. Actions and management measures implemented by t-RFMO to monitor sea turtle fisheries interactions, reduce their bycatch in fisheries, and carry out best practices for the handl...
Differentiation of spatial units of Genus Euthynnus from the Eastern Atlantic a...
Muñoz-Lechuga, Rubén; Sow, Fambaye Ngom; Constance, Diaha N’Guessan; Angueko, Davy; Macías, David; Massa-Gallucci, Alexia; da Silva, Guelson BatistaThe shape of sagitta otoliths was used to compare individuals of little tunny (Euthynnus alleteratus) harvested on board commercial fishing vessels from the coastal areas along the Eastern Atlantic, including the Mediterranean Sea. Fish sampling and selection was designed to cover possible seasonal changes and tuna size. The research encompassed both morphometric and shape analyses of left sagittal otoliths ext...
Movements, habitat use, and diving behavior of Shortfin Mako in the Atlantic Ocean
Casaca Santos, Catarina; Domingo, Andrés; Carlson, John; Natanson, Lisa J.; Travassos, Paulo; Macías, David; Cortés, Enric; Miller, Philip; Hazin, FábioThe shortfin mako is one of the most important shark species caught in Atlantic Ocean pelagic fisheries. Given increasing concerns for the stock status of the species, the present study was designed to fill gaps in the knowledge of habitat use and movement patterns of shortfin mako in the Atlantic Ocean. From 2015 to 2019, 53 shortfin makos were tagged with pop-up satellite archival tags within the North, Centr...
Local indicators for global species: Pelagic sharks in the tropical northeast A...
Coelho, Rui; Macías, David; Ortiz de Urbina, Josetxu; Martins, Albertino; Monteiro, Carlos; Lino, Pedro G.; Rosa, Daniela; Casaca Santos, CatarinaPelagic sharks are an important bycatch in pelagic fisheries, especially for drifting longlines targeting swordfish. In the Cabo Verde Archipelago (tropical NE Atlantic), pelagic shark catches can reach a significant proportion of the total catches. Due to the increased concern on the status of pelagic shark species, this study was developed to enhance the current knowledge of those sharks in the Cabo Verde reg...