Salinas-de-León Pelayo, Vaudo Jeremy, Logan Ryan, Suarez-Moncada Jenifer, Shivji Mahmood
Charles Darwin Research Station, Charles Darwin Foundation, Galapagos Islands, Ecuador.
Guy Harvey Research Institute and Save Our Seas Foundation Shark Research Center, Nova Southeastern University, Dania Beach, Florida, USA.
J Fish Biol. 2024 Jul;105(1):378-381. doi: 10.1111/jfb.15788. Epub 2024 May 17.
Despite being a heavily fished species, little is known about the movements of silky sharks (Carcharhinus falciformis). In this study, we report the longest (in duration and distance traveled) and most spatially extensive recorded migration for a silky shark. This shark, tagged with a fin-mount satellite transmitter at the Galapagos Islands, traveled >27,666 km over 546 days, making two westerly migrations into international waters as far as 4755 km from the tagging location. These extensive movements in an area with high international fishing effort highlights the importance of understanding silky shark migrations to inform management practices.
尽管丝鲨（Carcharhinus falciformis）是一种捕捞量很大的物种，但人们对其活动情况知之甚少。在本研究中，我们报告了有记录以来丝鲨最长的（持续时间和游动距离）且空间范围最广的洄游。这条鲨鱼在加拉帕戈斯群岛被安装了鳍式卫星发射器，在546天内游动了超过27666公里，两次向西洄游至国际水域，距离标记地点最远达4755公里。在国际捕捞活动频繁的区域出现的这些大范围移动，凸显了了解丝鲨洄游情况对指导管理措施的重要性。
