Satellite telemetry was used to track inter-nesting, post-nesting, and foraging movements of six green turtles that nested on Bioko Island, Equatorial Guinea at the end of the 2019 nesting season, as well as foraging movements of five green turtles after the 2018 nesting season (n = 11 across two seasons), from the same nesting population. These tracks were fit with a switching state-space model to characterize movements and then analyzed in relation to environmental and anthropogenic factors. Inter-nesting movements of two turtles included separate oceanic loops, in which turtles traveled > 40 km away from nesting beaches. Four complete migrations were observed to two distinct foraging grounds, with two turtles migrating west for an average of 1064 km to the coastal waters of Ghana, and two migrating south for an average of 1563 km to a newly discovered foraging ground in the coastal waters of Angola. All migrations included intermittent foraging at stopover sites, including one period of possible oceanic foraging. Turtles at both foraging grounds maintained distinct core use areas in shallow, near-shore (< 20 km from coast) waters. Spatial and depth data reveal critical habitats for this population throughout inter-nesting, post-nesting, and foraging behaviors. Tracks spanned nine countries, highlighting the need for multi-national cooperation in the development of marine conservation management plans in the area. The long distances covered by these turtles suggests that fisheries bycatch and direct harvest throughout the East Atlantic may impact this population. Additionally, spatial and dive depth data can inform zonal fishing regulations and provide the information needed to modify fishing practices and gear in ways likely to reduce sea turtle bycatch.

中文翻译：

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确定保护东大西洋绿海龟 (Chelonia mydas) 的关键相互筑巢、迁徙和觅食栖息地

卫星遥测用于跟踪2019年筑巢季节末在赤道几内亚比奥科岛筑巢的6只绿海龟的筑巢、筑巢后和觅食活动，以及2018年之后5只绿海龟的觅食活动筑巢季节（两个季节 n = 11），来自相同的筑巢种群。这些轨道与切换状态空间模型相匹配，以表征运动，然后根据环境和人为因素进行分析。两只海龟的筑巢运动包括单独的海洋环，其中海龟距离筑巢海滩> 40公里。观察到四次完全迁徙到两个不同的觅食地，两只海龟向西迁徙平均 1064 公里，到达加纳沿海水域，和两个向南迁移平均 1563 公里到一个新发现的安哥拉沿海水域的觅食地。所有迁徙都包括在中途停留地点的间歇性觅食，包括一段可能的海洋觅食。两个觅食地的海龟在浅水、近岸（距海岸 < 20 公里）水域保持不同的核心使用区域。空间和深度数据揭示了该种群在筑巢后、筑巢后和觅食行为中的关键栖息地。赛道跨越九个国家，突出了在该地区制定海洋保护管理计划方面开展多国合作的必要性。这些海龟覆盖的长距离表明整个东大西洋的渔业兼捕和直接捕捞可能会影响这一种群。此外，