Tracking speartooth sharks (Glyphis glyphis) and bull sharks (Carcharhinus leucas), Wenlock and Ducie rivers, Cape York, Australia (2014-2018)

The study area was located on the Wenlock and Ducie River systems in Cape York, Queensland, Australia (12.350S, 142.107E; The region exhibits a distinct wet season, with monsoonal rains followed by a dry season with little to no rainfall. Both the Ducie and Wenlock Rivers flow into Port Musgrave, a large coastal embayment in the eastern Gulf of Carpentaria. Being tropical tidal rivers, they are subject to daily fluctuations in salinity and to large increases in freshwater inflow .at the onset of the wet season. To investigate long-term broadscale movements compared to the changing water conditions, 22 speartooth sharks (Glyphis glyphis) and 22 bull sharks (Carcharhinus leucas) were fitted with acoustic transmitters and were tracked passively via an array of underwater. acoustic hydrophones. Tracking data was accessed from the Dryad repository in the cited paper.

本研究的研究区域坐落于澳大利亚昆士兰州约克角半岛的温洛克河（Wenlock River）与杜西河（Ducie River）水系，地理坐标为南纬12.350°、东经142.107°。该区域具有鲜明的干湿季特征：湿季受季风性降雨影响，随后的旱季几乎无降水。杜西河与温洛克河均注入卡奔塔利亚湾东部的大型海湾穆尔斯格雷夫港（Port Musgrave）。作为热带潮汐河流，二者盐度每日均存在波动，且在湿季伊始会出现淡水输入量的显著增长。为探究水环境变化背景下的长期大范围移动行为，研究人员为22尾矛齿鲨（Glyphis glyphis）及22尾公牛鲨（Carcharhinus leucas）佩戴了声学遥测发射器（acoustic transmitters），并通过水下声学水听器（acoustic hydrophones）阵列开展被动追踪。本研究的追踪数据取自所引用论文中的Dryad数据库（Dryad repository）。