Influence of seasonal changes in relative liver size, condition, relative gonad size and variability in ovarian development in multiple spawning fish species used in environmental monitoring programmes
Influence of seasonal changes in relative liver size, condition, relative gonad size and variability in ovarian development in multiple spawning fish species used in environmental monitoring programmes
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DOI：
10.1111/j.1095-8649.2006.01249.x
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发表时间：
2006-12-01
影响因子：
2
通讯作者：
Munkittrick, K. R.
中科院分区：
文献类型：
--
作者：
Galloway, B. J.;Munkittrick, K. R.
收集了基本的生物学信息，以帮助了解用于环境监测方案的选定小型鱼类的生物学。雌鱼的性腺-体细胞指数(I-G)和肝体指数(I-H)随产卵期的增加而逐渐降低，雌鱼的性腺-体细胞指数(I-G)和肝体指数(I-H)分布相似。雌性北方红腹鱼的I-G和I-H曲线出现两次峰值，表明卵母细胞的招募在整个产卵季节都是连续的。与其他鱼种相比，DASE中卵巢质量与调整体质量(MA)的回归具有更大的可变性。对于雌性黑鼻鱼，通过选择2岁的鱼和体重2-4克的鱼，卵巢质量和MA之间的关系的变异性被降到最低。
Basic biological information was collected to assist in understanding the biology of selected small-bodied fishes for use in environmental monitoring programmes. Gonado-somatic index (I-G) and hepato-somatic index (I-H) profiles of female blacknose dace Rhinichthys atratulus, mummichog Fundulus heteroclitus and golden shiner Notemigonus crysoleucas were similar, decreasing gradually during the spawning season. I-G and I-H profiles of female northern redbelly dace Phoxinus eos peaked twice suggesting oocyte recruitment was continuous throughout the spawning season. Regressions of ovary mass to adjusted body mass (MA) were more variable in dace relative to the other fish species. For female blacknose dace, variability in the relationship between ovary mass and MA was minimized by selecting either 2 year-old fish and fish that weighed 2-4 g. (c) 2006 The Fisheries Society of the British Isles.