Habitat characteristics and size structure in a population of an endangered lamprey, Lethenteron sp. N, in an urbanized area of Japan

Habitat characteristics and size structure in a population of an endangered lamprey, Lethenteron sp. N, in an urbanized area of Japan
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濒临灭绝的七鳃鳗 (Lethenteron sp.) 种群的栖息地特征和大小结构。

DOI:
10.1007/s10228-020-00747-5
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发表时间:
2020
期刊:
Icthyological Research
影响因子:
--
通讯作者:
Nishihiro J
Nishihiro J
中科院分区:
--
文献类型:
--
作者:
Hirano Y;Kidera N;Kondo IN;Nishihiro J

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为保护城市化地区七鳃鳗种群,对其分类属性、栖息地特征和空间分布等基本特征进行了研究。线粒体基因序列分析表明,该种群属于Lethenteronsp.种群的丰度和大小分布在时间和空间上都不同。产卵活动仅在最高河段观察到。虽然下游的水滴结构可能会阻止个体的移动,但研究溪流中存在许多泉水和沙质底物,这表明当地的栖息地条件适合该物种。
For conservation of a lamprey population in an urbanized area, basic properties including taxonomic attribution, habitat characteristics and spatial distribution were investigated. Sequencing analysis of mitochondrial genes suggested that the population belongs toLethenteronsp. N. The abundance and size distribution of the population varied temporally and spatially. Spawning activity was observed only in the uppermost reach. Although a drop structure at the downstream may prevent the movement of individuals, the presence of many sources of spring water and sandy substrate in the study stream suggested that the local condition of habitat was suitable for this species.
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