作者
Jeffrey A Seminoff, T Todd Jones
发表日期
2006/12/1
期刊
Herpetological Conservation and Biology
卷号
1
期号
2
页码范围
81-86
简介
We examined the daily movements and activity ranges of Green Turtles at Bahia de los Angeles, a neritic foraging area in the Gulf of California, Mexico. Six turtles, ranging from 50.9 to 82.5 cm in straight carapace length were tracked with radio and acoustic telemetry for 24-h periods. Diel vagility ranged from 4.26 km to 15.34 km (mean= 8.21±1.61 km), with minimum travel speeds of 0.18–0.64 km h-1. Short-term (24-h) activity ranges were from 70 ha to 1,252 ha (mean= 458±202 ha). As the first study to establish diel vagility of green sea turtles in foraging areas of the Eastern Pacific Ocean, our data show that Green Turtles may traverse large distances over limited temporal durations while resident at coastal foraging areas and may visit multiple habitats. Conservation efforts aimed to reduce the illegal hunting and incidental fisheries bycatch of Green Turtles assembled at this coastal foraging area must therefore encompass the entire coastal ecosystem rather than simply target a few component habitats within the area.
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