Structure and colour of the integument of the European eel Anguilla anguilla (L.)
Structure and colour of the integument of the European eel Anguilla anguilla (L.)
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欧洲鳗鲡 (L.) 外皮的结构和颜色
DOI：
10.1111/j.1095-8649.1982.tb02833.x
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发表时间：
1982
影响因子：
2
通讯作者：
J. Lythgoe
中科院分区：
文献类型：
--
作者：
N. W. Pankhurst;J. Lythgoe
对26条野生鳗鱼和9条人工成熟的雌性鳗和30条性未成熟鳗鱼的体壁结构进行了研究。黑素团密度的变化与成熟度无关，而黄色素团则从皮肤中较低的水平逐渐丧失。由嘌呤、鸟嘌呤和次黄嘌呤组成的反射层与发色团层结合。嘌呤浓度(占总皮肤干重的百分比)随着成熟度的增加而降低，但反射元素发生了重组。与成熟有关的颜色变化是由于嘌呤的重新分布。光谱和角度反射率测量表明，被膜具有伪装价值，颜色的变化可能与迁徙过程中栖息地的变化有关。讨论了颜色作为性成熟指数的有用性。
The structure of the integument of 26 wild and nine artificially matured female Anguilla anguilla, and 30 sexually immature eels maintained in controlled lighting, was investigated. Melanophore densities varied in a way unrelated to maturity while xanthophores were progressively lost from lower levels in the skin. Reflecting layers made up of the purines, guanine and hypoxanthine were associated with chromatophore layers. Purine concentrations (as a percentage of total skin dry weight) decreased with maturity but a reorganization of the reflecting elements occurred. Colour changes associated with maturation were due to the redistribution of purines. Spectral and angular reflectance measurements indicate that the integument has camouflage value and colour changes can be related to the change in habitat occurring with migration. The usefulness of colour as an index of sexual maturity is discussed.