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Effects of elevated salinity on Cuban treefrog (Osteopilus septontrionalis) aldosterone levels, growth, and development
Marine and Freshwater Behaviour and Physiology ( IF 1 ) Pub Date : 2020-05-29
Erin Lukens, Travis E. Wilcoxen

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:

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

由于诸如与气候变化相关的海平面升高,道路盐的使用以及地下水位降低等因素,两栖动物面临着盐碱化的挑战。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盐度升高中起重要作用。我们研究了盐度对古巴树蛙(Osteopilus septentrionalis)生长,发育和醛固酮水平的影响).。在六周内确定了三种盐度处理(1.0、2.5和3.5 ppt)中t的Gosner阶段,生长速率和醛固酮水平。古巴树蛙t似乎具有对高盐水平和醛固酮分泌减少的反应。然而,为了在高盐浓度下生存,必须在生长和发育之间进行权衡以调节渗透功能。

更新日期:2020-05-29
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