Fig. 1. Map of Estero Morua, Mexico and water temperature data. (A) Experimental
animals were collected on June 19, 2001 by baited trap in an estuary (Estero
Morua) near Puerto Peñasco, Sonora, Mexico. (B) Water temperatures at
the collection site for 53 days prior to sampling. Temperature data were
gathered via a submerged data recorder.