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Anales del Instituto de la Patagonia

On-line version ISSN 0718-686X


CANETE, Juan I; PALACIOS, Mauricio  and  CARDENAS, César A. Presence of Cistenides Elhersi Hessle, 1917 (Polychaeta Perctinariidae) in magellan shallow waters with Ruppia Filifolia beds: Evidences of Eurybathic, Euryhaline and Eurythermal?. Anales Instituto Patagonia (Chile) [online]. 2012, vol.40, n.2, pp.125-139. ISSN 0718-686X.

A bibliographic revision on the records of the distribution of the polychaete Cistenides elhersi, obtained during different CIMAR Fjord cruises (50 m), was conducted in order to test the potential effects of salinity gradients and temperature on the vertical distribution of benthic estuarine fauna. Aditionally, a new record of C. elhersi is reported in low salinity (25 psu) shallow waters of Skyring Sound ((52°33’16" S, 71°51’34" W; 0.3 to 2 m depth) Magellan region, with presence of the grass Ruppia flifolia. This record suggest the eurybathic, euryhaline and eurythermal of this polychaete in the austral zone of Chile. Additional studies are suggested in order to identify other ecological services provided by seagrass beds.

Keywords : estuaries; Polychaeta; Fjord benthos; ruppia; Cimar-Fiordo; subantarctic wetland.

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