%0 Journal Article
%T CHILEAN MARINE MOLLUSCA OF NORTHERN PATAGONIA COLLECTED DURING THE CIMAR-10 FJORDS CRUISE MOLUSCOS MARINOS CHILENOS DEL NORTE DE LA PATAGONIA RECOLECTADOS DURANTE EL CRUCERO DE FIORDOS CIMAR-10
%A Javiera C¨¢rdenas
%A Cristian Aldea
%A Claudio Valdovinos
%J Gayana (Concepci¨®n)
%D 2008
%I Universidad de Concepci¨®n
%X The tip of the South American cone is one of the most interesting Subantarctic areas, both biogeographically and ecologically. Nonetheless, knowledge of the area's biodiversity, in particular that of the subtidal marine habitats, remains poor. Therefore, in 2004, a biodiversity research project was carried out as a part of the cruise Cimar-10 Fjords, organized and supported by the Chilean National Oceanographic Committee (CONA). The results of the subtidal marine mollusk surveys are presented herein. The samples were collected aboard the Agor 60 "Vidal Gormaz" in winter 2004. The study area covered the northern Chilean Patagonia from Seno de Relocanv¨ª (41¡ã31'S) to Boca del Guafo (43¡ã49'S), on the continental shelf from 22 to 353 m depth. The Mollusca were collected at 23 sampling sites using an Agassiz trawl. In total, 67 species were recorded: 4% Polyplacophora (Leptochitonidae, Ischnochitonidae), 58% Gastropoda (Lepetidae, Fissurellidae, Trochidae, Turbinidae, Calyptraeidae, Capulidae, Naticidae, Ranellidae, Cerithiopsidae, Epitoniidae, Muricidae, Buccinidae, Columbellidae, Nassariidae, Volutidae, Cancellariidae, Turridae, Pyramidellidae, Acteonidae, Chilinidae), 36% Bivalvia (Nuculidae, Yoldiidae, Malletiidae, Tindariidae, Limopsidae, Phylobryidae, Mytilidae, Pectinidae, Propeamussidae, Lucinidae, Thyasiridae, Neoleptonidae, Carditidae, Condylocardiidae, Veneridae, Tellinidae, Lyonsiidae, Pandoridae, Cuspidariidae), and 1% Scaphopoda (Rhabdidae). Our results show a high proportion of southern (Magellanic) subtidal species; 45 species (67%) are strictly Magellanic or Antarctic and another 16 (24%) were widespread species, with distributions extending to the south of our study area. Only six species (9%) were strictly Peruvian. El extremo sur de Sudam¨¦rica representa una de las ¨¢reas subant¨¢rticas m¨¢s interesantes desde un punto de vista ecol¨®gico y biogeogr¨¢ co. A pesar de ello, el conocimiento que se tiene sobre la biodiversidad del ¨¢rea, y en particular de los habitats marinos submareales, es relativamente pobre. En el a o 2004 se realiz¨® un proyecto de investigaci¨®n sobre biodiversidad como parte del crucero Fiordos Cimar-10, organizado y financiado por el Comit¨¦ Ocean¨®grafico Nacional de Chile (CONA). En este art¨ªculo se describen los resultados obtenidos sobre de los moluscos submareales. Las muestras fueron obtenidas en el invierno del 2004, a bordo del buque Agor 60 "Vidal Gormaz". El ¨¢rea de estudio se localiz¨® en el extremo norte de la Patagonia chilena, desde el Seno de Relocanv¨ª (41 ¡ã31' S) hasta la Boca del Guafo (43¡ã49'S), en la plataforma
%K Biodiversidad
%K taxonom¨ªa
%K Sudam¨¦rica
%K fiordos
%K Polyplacophora
%K Gastropoda
%K Bivalvia
%K Scaphopoda
%K Biodiversity
%K taxonomy
%K South America
%K fjords
%K Polyplacophora
%K Gastropoda
%K Bivalvia
%K Scaphopoda
%U http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382008000200010