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Habitat characteristics and size structure in a population of an endangered lamprey, Lethenteron sp. N, in an urbanized area of Japan
Ichthyological Research ( IF 1.2 ) Pub Date : 2020-04-13 , DOI: 10.1007/s10228-020-00747-5
Yuna Hirano , Noriko Kidera , Natsuko I. Kondo , Jun Nishihiro

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 to Lethenteron sp. 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.

中文翻译:

濒临灭绝的七鳃鳗,Letenteron sp. 种群的栖息地特征和大小结构。N,在日本的城市化地区

为了保护城市化地区的七鳃鳗种群,研究了基本特性,包括分类属性、栖息地特征和空间分布。线粒体基因的测序分析表明该种群属于 Lethenteron sp。N. 种群的丰度和大小分布随时间和空间变化。仅在最上游观察到产卵活动。尽管下游的水滴结构可能会阻止个体移动,但研究溪流中存在许多泉水和沙质基质,表明当地的栖息地条件适合该物种。
更新日期:2020-04-13
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