Physical characteristics of pallid sturgeon and shovelnose sturgeon eggs

This dataset describes the diameter, shape, settling velocity, and specific gravity of eggs from 9 female pallid sturgeon and 14 female shovelnose sturgeon as determined in laboratory studies. Pallid sturgeon and shovelnose sturgeon are believed to broadcast demersal eggs in the current, near the river bed over coarse substrate. It is hypothesized that eggs settle immediately following fertilization, but field conditions preclude direct observation. The dispersal of sturgeon eggs is affected by physical properties of the eggs and hydraulic conditions at the spawning location.

本数据集记录了经实验室研究测定的9尾雌性苍白鲟（Pallid sturgeon）与14尾雌性铲吻鲟（Shovelnose sturgeon）所产卵的直径、形态、沉降速度及比重。据推测，苍白鲟与铲吻鲟会在河床附近粗粒底质上方的水流中播撒底栖卵（demersal eggs）。学界假设鱼卵会在受精后即刻沉降，但野外条件无法进行直接观测。鲟鱼卵的扩散情况会受到鱼卵自身物理特性以及产卵位点处的水力学条件的影响。