Certain concentration of metal may influence survival in embryonic stages, reducing the birthrate and hatching emergence. This study aimed to evaluate concentration of metal in eggs and hatchlings of Dermochelys coriacea and correlate metal concentrations in eggs with hatching and emergence success. The samples were collected at Biological Reserve Station, ES, Brazil. At the nests' opening, unhatched eggs and stillborn hatchlings were collected to survey the successful hatching and emergence of D. coriacea. The eggs shell, egg content, and dead hatchlings metal concentrations were compared to hatching and emergence success. A positive correlation was found between the concentration of copper (Cu) in the hatchlings and the success of the emergence (r² = .28, p < .05), and a moderate positive correlation between the concentrations of iron (Fe) and barium (Ba; r² = .44, p < .05) and success hatching. The concentrations of metals in eggs and hatchlings of D. coriacea in the Espírito Santo are below the levels that could be considered harmful to the species. In summary, there is a positive correlation between metals levels and hatching and emergence success.

中文翻译：

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巴西圣埃斯皮里图的Dermochelys coriacea（睾丸）的卵和孵化中的金属及其与孵化和出苗成功的关系

一定浓度的金属可能会影响胚胎期的存活，从而降低出生率和孵化率。这项研究旨在评估Dermochelys coriacea的卵和孵化中的金属浓度，并将卵中的金属浓度与孵化和出苗成功相关联。样品在巴西ES的生物储备站收集。在巢的开口处，收集未孵化的卵和死孵化的孵化物，以调查D. coriacea的成功孵化和出苗。将卵壳，卵含量和幼雏中的金属浓度与孵化和出苗成功进行了比较。在孵化场中铜（Cu）的浓度与出苗的成功度之间存在正相关关系（r ² = .28，p  <.05），并且铁（Fe）和钡的浓度（Ba; r ²  = .44，p  <.05）与成功孵化之间呈中等正相关。圣埃斯皮里图州D. coriacea的卵和孵化场中的金属浓度低于被认为对该物种有害的水平。总之，金属含量与孵化和出苗成功之间存在正相关。