Abundance and diversity of Mollusca in the Beagle Channel

The malacofauna of the Beagle Channel caught by an epibenthic sledge during the Joint Magellan Victor Hensen Campaign in 1994 was investigated. At 11 locations 16 samples were taken on a transect through the Channel. Species of Aplacophora, Polyplacophora, Gastropoda, Scaphopoda and Bivalvia were identified and quantified. Their horizontal and vertical distribution was described and possible reasons due to their feeding mode discussed. The exact number of specimens collected was 35,084 yielding 107,208 molluscs/ 1000 m2.
Se estudió la malacofauna del Canal del Beagle capturada por un trineo epibentónico durante la campaña multidisciplinaria magallánica “Victor Hensen”, en el año 1994. Se tomaron 16 muestras en 11 estaciones mediante un transecto a lo largo del Canal. Se identificaron especies de aplacóforos, polyplacóforos, gasterópodos, escafópodos y bivalvos, y se cuantificó su abundancia. Se describe la distribucion horizontal y vertical, justificando esta, en parte, por su modo de alimentación. Se capturaron 35.084 individuos, lo que correspondería a 107.208 moluscos por 1000 m2