Habitat Use and Behavior of the East Pacific Green Turtle, Chelonia mydas, in an Urbanized System

Autor: Tomoharu Eguchi, Jeffrey A. Seminoff, Daniel D. Lawson, Daniel P. Crear, Robin A. LeRoux, Christopher G. Lowe
Rok vydání: 2017
Předmět:
Zdroj: Bulletin, Southern California Academy of Sciences. 116:17-32
ISSN: 2162-4534
0038-3872
DOI: 10.3160/soca-116-01-17-32.1
Popis: Abstrac Green sea turtles, Chelonia mydas, are known to inhabit populated and often urbanized areas. To understand turtle habitat use and behavior within these unique habitats, seven juvenile green turtles were fitted with acoustic transmitters (September 2012 – August 2014), of which two transmitters included an accelerometer (AP transmitter). One individual fitted with an AP transmitter was tracked using a passive acoustic array in an urbanized river, the San Gabriel River, Long Beach, CA (33°45’ N, 118°05’ W). Three additional turtles in this river and three turtles (one with AP transmitter) in a restored estuary (33°44’ N, 118°03’ W) in southern California were actively tracked for two non-consecutive 24-h periods. Those fitted with AP transmitters indicated that turtles were less active at night (0.58 ± 0.56 m/s2 and 0.50 ± 0.63 m/s2) than during the day (0.86 ± 0.63 m/s2 and 0.78 ± 0.60 m/s2) at both sites. Activity data and corresponding movements of the actively tracked turtle fitted with the AP t...
Databáze: OpenAIRE