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Contribution of hydrodinamics on passive drifts of Aristeus antennatus particles-like in the North-western Mediterranean Sea

AuthorsClavel-Henry, Morane ; Solé, Jordi ; Ahumada-Sempoal, Miguel Ángel; Bahamon, Nixon ; Briton, Florence; Rotllant, Guiomar ; Company, Joan B.
Issue Date22-Jun-2017
PublisherCrustacean Society
CitationThe Crustacean Society Mid-Year Meeting (2017)
DescriptionThe Crustacean Society (TCS) Mid-Year Meeting, 9-22 June 2017, Barcelona
The effectiveness of an integrated fishery management plan for the deep sea red shrimp Aristeus antennatus strongly depends on the knowledge about the displacement of individuals during their larval stage among subpopulations from different fishing grounds. To contribute to this purpose, biophysical models were used to study the potential hydrodynamic connectivity among shrimp-fishing grounds along submarine canyons in the North-western Mediterranean Sea using the spawning characteristics of the species. Modelled as passive particles, the larvae followed a main southwest drift along the continental slope and drifted up to 200 km within 31 days. The Cap Creus and Palamòs canyons were inter-connected when particles were released above 600 m depth. Only four percent of the drifters reached the estimated recruitment depth for A. antennatus at about 1,000 m depth when releases of particles took place around 800 m depth. The strength of connectivity between canyons differed with velocity fields from two different hydrodynamic models though the overall connectivity patterns prevailed
Appears in Collections:(CEAB) Comunicaciones congresos
(ICM) Comunicaciones congresos
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