Resumen

JIMENEZ-QUIROZ, Ma. del Carmen; PALLEIRO-NAYAR, Julio S.; SALGADO ROGEL, Ma. de Lourdes  y  RODRIGUEZ-BUENDIA, Alejandro. Natural mortality of red sea urchin from Baja California, México, estimated with in situ and satellite measured temperature. Hidrobiológica [online]. 2013, vol.23, n.3, pp.443-445. ISSN 0188-8897.

The natural mortality (M) of the red sea urchin (Strongylocentrotus franciscanus) on the northwestern coast of Baja California between 1985 and 2007 was of 0.251 ± 0.008 (mean ± standard deviation); these values were calculated with the Pauly (1983) method, based upon growth parameters and the habitat temperature (Th). Growth parameters were taken from literature and the temperature was measured in situ (Th) and with satellite sensors (Th'). The variations of M were related to El Niño and La Niña events; another authors' results suggest that these events affect metabolism and morbidity of red sea urchins as well as the availability of food to animals of all ages.

Palabras llave : AVHRR-NOAA; El Niño; La Niña; Strongylocentrotus franciscanus.