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首页> 外文期刊>Science of the total environment >Accumulation of trace metals in the embryos and hatchlings of Chelonia mydas from Peninsular Malaysia incubated at different temperatures
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Accumulation of trace metals in the embryos and hatchlings of Chelonia mydas from Peninsular Malaysia incubated at different temperatures

机译：在不同温度下孵育的马来西亚半岛的Chelonia mydas的胚胎和幼体中的痕量金属的积累

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摘要

A variety of trace metals were measured in the egg contents of three clutches of Chelonia mydas collected from Kuala Terengganu state in Peninsular Malaysia. We quantified Mn, Cu, Zn, Se (essential trace metals) and As (anthropogenic pollutant) at several developmental stages obtained by incubating eggs at two different temperatures (27 ℃ and 31 ℃). The incubation temperatures were chosen because they produce predominantly male or predominantly female hatchlings, respectively. The eggs were removed from the sand and washed before being placed in incubators, to ensure that the only possible source of the detected metals was maternal transfer. Other metals: Mo, Co, Ni, Cd, Sn, Sb, Hg, Tl and Pb (all non-essential metals) were detected at concentrations below the lower limit of quantitation (LLOQ). Trace metal concentrations, particularly [Zn], increased during development, other metals (Cu, As, Se and Cr) accumulated to a lesser degree than zinc but no significant differences were observed between the incubation temperatures at any stage of incubation. To date, only a few studies on trace metals in turtle embryos and hatchlings have been reported; this study will provide basic knowledge on the accumulation of trace metals during development at two different incubation temperatures.
机译：在从马来西亚半岛的瓜拉丁加奴州收集的三个螯合螯虾卵中，测量了多种微量金属。我们通过在两个不同温度（27℃和31℃）下孵化卵获得的几个发育阶段对Mn，Cu，Zn，Se（必需的痕量金属）和As（人为污染）进行了定量。选择孵化温度是因为它们分别产生主要是男性或女性的幼体。将鸡蛋从沙子中取出并清洗，然后再放入孵化器中，以确保检测到的金属的唯一可能来源是母体转移。其他金属：Mo，Co，Ni，Cd，Sn，Sb，Hg，Tl和Pb（所有非必需金属）的浓度低于定量下限（LLOQ）。在发育过程中，痕量金属浓度，特别是[Zn]增加，其他金属（Cu，As，Se和Cr）的积累程度低于锌，但在任何培养阶段的培养温度之间均未观察到明显差异。迄今为止，仅报道了一些关于乌龟胚胎和孵化场中微量金属的研究。这项研究将提供有关在两种不同的孵育温度下发育过程中痕量金属积累的基础知识。

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