赤水河赤水市江段鱼类资源现状
发布时间:2018-07-16 22:58
【摘要】:根据2011~2013年赤水河赤水市江段的渔获物调查数据,对该江段的鱼类资源现状进行了研究。调查期间共采集到鱼类58种,隶属于3目10科47属。唇(Hemibarbus labeo)、中华倒刺渻(Spinibarbus sinensis)、蛇泩(Saurogobio dabryi)、瓦氏黄颡鱼(Pelteobagrus vachelli)、大鳍溹(Mystus macropterus)、吻泩(Rhinogobio typus)、粗唇洜(Leiocassis crassilabris)、银泩(Squalidus argentatus)、鲤(Cyprinus carpio)、鳜(Siniperca chuatsi)、切尾拟溈(Pseudobagrus truncates)、鲫(Carassius auratus)和鲇(Silurus asotus)等13种为调查江段的主要优势种类,它们在渔获物中的总数量百分比和总重量百分比分别为92.61%和93.82%。从捕捞规格来看,目前赤水市江段主要经济鱼类均以小型个体为主,平均体长多在200mm以下,平均体重多在100g以下,与历史调查数据相比,捕捞规格小型化趋势较为明显。建议相关部门加快渔民转产安置工作,争取早日实现赤水河流域全面禁渔,并建立流域统一协调管理机制,切实保护好赤水河这一长江上游珍稀特有鱼类的最后庇护所。
[Abstract]:Based on the catch survey data of Chishui River in Chishui City from 2011 to 2013, the present situation of fish resources in Chishui River was studied. During the investigation, 58 species of fish were collected, belonging to 3 orders, 10 families, 47 genera. 鍞,
本文编号:2127937
[Abstract]:Based on the catch survey data of Chishui River in Chishui City from 2011 to 2013, the present situation of fish resources in Chishui River was studied. During the investigation, 58 species of fish were collected, belonging to 3 orders, 10 families, 47 genera. 鍞,
本文编号:2127937
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