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A Field Key to the Developmental Stages of Marine Turtles (Cheloniidae) with Notes on the Development of Dermochelys

机译:关于海龟(Cheloniidae)发育阶段的领域关键,以及有关Dermochelys发育的注意事项

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摘要

Descriptions of the developmental stages of embryonic marine turtles are presented in the form of a dichotomous key supported by drawings to facilitate identifying stages of development in the field. The key emphasizes the sequential appearance or loss of external morphological structures that can be seen either with the unaided eye or with a X10 hand lens and a handheld light. Stages are placed in the context of normal beach temperatures to facilitate estimation of laying date, emergence date, and events that cause embryonic mortality. Measurements of embryos are presented to assist determining stage.
机译:胚胎海龟的发育阶段以二分键的形式表示,并附有附图,以方便识别该领域的发育阶段。该键强调了可以用肉眼或X10手持透镜和手持灯看到的外部形态结构的顺序出现或丢失。在正常海滩温度的背景下放置舞台,以便于估计产卵日期,出苗日期和导致胚胎死亡的事件。提出了胚胎的测量以帮助确定阶段。

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