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首页> 外文期刊>Journal of Fish Biology >Femtosecond laser ablation ICP-MS measurement of otolith Sr:Ca and Ba:Ca composition reveal differential use of freshwater habitats for three amphidromous Sicyopterus (Teleostei: Gobioidei: Sicydiinae) species.
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Femtosecond laser ablation ICP-MS measurement of otolith Sr:Ca and Ba:Ca composition reveal differential use of freshwater habitats for three amphidromous Sicyopterus (Teleostei: Gobioidei: Sicydiinae) species.

机译:飞秒激光消融ICP-MS对耳石Sr:Ca和Ba:Ca成分的测量揭示了三种两栖鳞翅目(Teleostei:Gobioidei:Sicydiinae)物种对淡水生境的不同利用。

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摘要

The use of freshwater habitats was examined in three amphidromous goby species of the genus Sicyopterus using otolith microchemistry. Two species were endemic to either New Caledonia or Vanuatu whilst the other was widely distributed. Depositional patterns of strontium (Sr) and barium (Ba) in the otolith of adults were analysed with femtosecond laser ablation inductively coupled plasma mass spectrometry (ICP-MS). The Sr:Ca and Ba:Ca results uncovered three different adult behaviours within the freshwater habitat. Some fishes stayed in elevated locations (square profile); others undertook back-and-forth migrations between higher and lower reaches (up-and-down profile), and finally, others stayed in the lower reaches (constant profile). The consequences of these movements to larval survival or competition for food and territory are discussed. This work brings new knowledge on amphidromous behaviour, and it highlights the necessity of multi-elemental analysis to study amphidromy in freshwater systems. Copyright 2011 The Authors. Journal of Fish Biology Copyright 2011 The Fisheries Society of the British Isles.CAS Registry/EC Number/Name of Substance 7440-24-6 (Strontium). 7440-39-3 (Barium). 7440-70-2 (Calcium).
机译:使用耳石微化学技术,对三个鳞翅目虾虎鱼属(Sicyopterus)的淡水生境的使用进行了检查。新喀里多尼亚或瓦努阿图有两种特有种,而另一种则广泛分布。用飞秒激光消融电感耦合等离子体质谱法(ICP-MS)分析了成年人耳石中锶(Sr)和钡(Ba)的沉积模式。 Sr:Ca和Ba:Ca结果揭示了淡水生境中三种不同的成年行为。一些鱼留在高处(方形);其他人则在上下游之间来回迁移(上下剖面),最后,其他人则留在下游(恒定剖面)。讨论了这些运动对幼虫生存或争夺食物和领土的后果。这项工作带来了有关两栖动物行为的新知识,并强调了在淡水系统中研究两亲现象的多元素分析的必要性。版权所有2011作者。 《鱼类生物学》杂志版权所有2011,不列颠群岛渔业协会。CAS注册号/ EC物质编号/名称7440-24-6(锶)。 7440-39-3(钡)。 7440-70-2(钙)。

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