Stable isotopes on Astarte borealis, Laptev Sea

Distance is sampling profile along the shell valve from umbo to ventral margin; shell collected alive on sediment surface.本研究中所定义的距离为沿贝壳瓣从壳顶（umbo）至腹缘的采样剖面长度；所用贝壳均为在沉积物表面活体采集得到。