Microhabitat Use and Population Structure of a Chinese Kissing Loach, Leptobotia tchangi , in the North Tiaoxi River, China
Microhabitat Use and Population Structure of a Chinese Kissing Loach, Leptobotia tchangi , in the North Tiaoxi River, China
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DOI：
10.4236/oje.2014.47031
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发表时间：
2014-05
期刊：
影响因子：
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通讯作者：
Liangliang Huang;Jianhua Li;Y. Kano;Tatsuro Sato;J. Kitamura;Y. Shimatani;Zhiqiang Wu
中科院分区：
文献类型：
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作者：
Liangliang Huang;Jianhua Li;Y. Kano;Tatsuro Sato;J. Kitamura;Y. Shimatani;Zhiqiang Wu
于2010年9月在北苕溪采集了张氏薄鳅（Leptobotia tangi）的基本生态信息。利用FiSAT软件计算的体长-频率分布表明，该吻吻鳅的种群结构可分为4个年龄组，其寿命为3 ~ 4年。多元逐步线性回归分析表明，吻鳅密度与流速呈显著正相关，而体长与河床卵石粒径呈显著正相关。这表明水流速度和卵石大小的变化在接吻泥鳅的整个生活史中起着重要的作用。因此，在目前的河流条件下，维持快速的水流和多样的基质是保护该物种的必要条件，这也可以支持河流恢复与这种接吻泥鳅的生存相协调。
Fundamental ecological information on the Chinese kissing loach (Leptobotia tchangi) was collected in the North Tiaoxi River, China, in September 2010. The length-frequency distribution calculated using FiSAT software showed the population structure of this kissing loach could be classified into four age groups suggesting that the life span of the loach should be 3 - 4 years. A stepwise multiple linear regression analysis revealed that the density of this kissing loach was significantly and positively correlated with water velocity, while the body size was significantly and positively correlated with river bed pebble size. It suggested that water velocity and variation of pebble size play important roles in the full life history of this kissing loach. Thus, maintenance of the rapid current and variety of substrate are essential for the conservation of this species under the present conditions in the river, which also can support river restoration being in harmony with survival of this kissing loach.