弓鱼 gōng yú 大理裂腹鱼
弓鱼【Schizothorax taliensis】又名:大理裂腹鱼。栖息于湖中的敞水区域的中上层,喜静水环境,繁殖期在每年的4~5月,在流水环境中产卵。分布于云南洱海及其附属水系,为大理特产经济鱼类。
Schizothorax taliensis, also known as Dali Schizothorax taliensis. It inhabits in the upper and middle layers of the open water area in the lake and likes the static water environment. Its breeding period is from April to may each year, and it lays eggs in the flowing water environment. It is distributed in Erhai Lake and its affiliated water system in Yunnan Province. It is a special economic fish in Dali.
外形特征
弓鱼体细长,稍侧扁,头小且短,吻短,与眼径等长,口端位,口裂微倾斜,上下唇在口角处相连,下唇细窄,唇后沟在下颌前会合处中断,下颌边缘没有角质化,眼大,须2对,颌须比吻须稍长。大理裂腹鱼的鱼体覆有细鳞,其排列不整齐,形状也不规则,腹部自鳃峡到腹鳍基部裸露无鳞,或仅有少数埋入皮内的鳞片痕迹,侧线微弯,侧线鳞为96~108个,肛门和臀鳍两侧各有1行大鳞,背鳍具一硬刺,其后缘具细小的锯齿 。
弓鱼的体背部呈浅褐色或黄褐色,腹部灰白色或略带淡黄,生殖期雌体肛门处特别膨大,带淡红色,臀鳍长且肥厚,雄体吻部出现发达的珠星。
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