ABSTRACT Amphibians are increasingly challenged with salinization due to factors such as elevated sea level associated with climate change, the use of road salts, and lowering of water tables. Aldosterone is a steroid hormone that is produced by the adrenal cortex and is involved in osmotic regulation and may play an important role in amphibian acclimation to elevated salinity. We studied the effects of salinity on growth, development, and aldosterone levels in Cuban treefrog (Osteopilus septentrionalis) tadpoles. Gosner stage, growth rates, and aldosterone levels were determined for tadpoles among three salinity treatments (1.0, 2.5, and 3.5 ppt) over a six-week period. It appears that Cuban treefrog tadpoles have the ability to respond to high salt levels with decreased aldosterone secretion; however, in order to survive high salt concentrations, trade-offs in growth and development must occur to regulate osmotic functions.

中文翻译：

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盐度升高对古巴树蛙（Osteopilus septontrinalis）醛固酮水平、生长和发育的影响

摘要 由于与气候变化相关的海平面升高、道路盐分的使用和地下水位降低等因素，两栖动物面临越来越多的盐碱化挑战。醛固酮是一种由肾上腺皮质产生的类固醇激素，参与渗透调节，可能在两栖动物适应升高的盐度中起重要作用。我们研究了盐度对古巴树蛙（Osteopilus septentrionalis）蝌蚪的生长、发育和醛固酮水平的影响。在六周的时间内，在三种盐度处理（1.0、2.5 和 3.5 ppt）中测定了蝌蚪的 Gosner 阶段、生长率和醛固酮水平。看来古巴树蛙蝌蚪有能力应对高盐水平，醛固酮分泌减少；然而，为了在高盐浓度下存活，