Distribution of Decapod Crustacean larvae in the Bays of the Ebro Delta | Distribución de larvas de crsutáceos decápodos en las bahías del Delta del Ebro

8 páginas, 6 figuras, 1 tabla

[EN] The abundance and composition of decapod larvae was analized from 18 plankton surveys carried out in Ebro Delta bays. Planktonic stages representing 49 species of decapods were identified. Larvae of Plesionika spp., Processa spp., Carcinus aestuarii, Brachynotus sexdentatus, Portumnus latipes and Liocarcinu spp. were abundant in the plankton of the bays. Larvae of Palicus caronii was recorded from this arca for the first time. Decapod larvae were numerous throughout the bays during later spring and summer. However, Cardinus aestuarii larvae were abundant during winter, and its peak numbers were in the upper order of magnitude as regards total concentrations of the larvae of other species

[ES] Se ha estudiado la composición y abundancia de las larvas de Crustáceos Decápodos recolectadas en las bahías del delta del Ebro en el transcurso de 18 campanas planctónicas. Se han identificado un total de 49 especies. Las larvas de lesionika spp., Processa spp., Carcinus aestuarii, Brachynotus sexdentatus, Portumnus latipes and Liocarcinu spp., son abundantes en el plancton dc las bahías. La larva de Palicus caronii ha sido capturada por vez primera en esta área. Las larvas de Decápodos fueron numerosas en las bahías desde el final de la primavera y durante el verano: sin embargo, las larvas de Cardinus aestuarii fueron muy abundantes en invierno y el número de larvas capturadas de esta especie es superior a la concentración total de las larvas de las otras especies

This study was carried out as part of the "Ecological study of the lagoons and bays of the Ebro Delta to develop marine culture and fishing", directed by Dr. P. Arté and financed by the CAICYT

Peer reviewed