Observations of survival and hatch of developing pallid sturgeon embryos in relation to experimental substrate and sediment cover
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This dataset documents the number of normally developed hatched free embryos, abnormally developed hatched free embryos, and viable unhatched embryos from two laboratory trials (shovelnose sturgeon during April and pallid sturgeon during May 2016) in substrate conditions designed to simulate potential fates within a dynamic riverine environment. Trials were performed with substrate treatments that consisted of clean glass (control), gravel, medium-coarse sand, and fine sand-silt. Medium-coarse sand and fine sand-silt substrates were each tested three ways: unburied, partially buried, and fully buried (1?2 millimeter depth). Pallid sturgeon and shovelnose sturgeon embryos were exposed to trial conditions from the day of fertilization until day 10 of incubation.
本数据集记录了两项室内试验中正常发育破膜自由胚胎、异常发育破膜自由胚胎以及存活未破膜胚胎的数量。两项试验分别于2016年4月针对铲鲟(shovelnose sturgeon)、2016年5月针对苍白鲟(pallid sturgeon)开展,试验所采用的底质(substrate)条件旨在模拟动态河流环境中胚胎的潜在发育归宿。试验设置了四类底质处理组别:清洁玻璃(对照组,control)、砾石、中粗砂以及细砂粉砂混合物。其中中粗砂与细砂粉砂两种底质分别设置三种埋藏状态:未埋藏、半埋藏以及全埋藏(埋藏深度1~2毫米)。试验过程中,苍白鲟与铲鲟的胚胎自受精当日起即暴露于试验条件下,直至孵化第10天。



