Autores UPV
Soliveres González Ester,
Puig Pons Vicente,
Ordoñez Cebrián Patricia,
Pérez Arjona Isabel,
Ardid Ramírez Miguel,
Ramis Soriano Jaime,
Poveda Martinez Pedro,
Estruch Fuster Vicente Domingo,
López-Belluga M.D.,
Robles Rocío,
Agraso Mª del MAr,
Espinosa Roselló Víctor
Abstract
Biomass estimation, both weight distribution and fish density, are clue factors for fish farming management. We present the experimental results of the acoustical estimates for both variables in Mediterranean intensive aquaculture floating cages. Sea bass and gilthead sea bream cages have been studied using scientific split beam echosounders with transducers placed at the sea surface. Dorsal measurements of the acoustical target strenght (TS) of isolated fish racks in the upper limit of the dense caged schools correlate with trong fish mean size differences. Mean acoustical volume backscattering strength monitoring reveals pen manipulations and fish stock changes, with good agreement in fish density estimations for the studied conditions.
