一、锚头鳋锚头鳋头部似锚,体长约10毫米,形似针,故又名针虫,肉眼可见。雄虫营自由生活,雌虫寄生鱼体,用其铁锚似的头部钻人鱼体肌肉,吸取鱼体的血液和组织液为营养,寄生部位周位发炎红肿,病鱼生长缓慢、消瘦,伤口往往被细菌感染;严重时虫体布满鱼身而死。锚头鳋一年四季可见,一般三月下旬至十一月均产卵,水温20—25℃是产卵盛期,对 First, anchor 鳋 anchor 鳋 head like an anchor, body length of about 10 mm, shaped like a needle, it is also known as a worm, the naked eye can be seen. Male camp insects free to live, females parasitic fish body, with its iron anchor-like head drilling human fish muscle, drawing fish blood and tissue fluid for nutrition, inflamed swollen periurethral periarthritis, sick fish growth slow, weight loss, wounds Often bacterial infection; severe insect body covered with dead fish. Anchorage 可 visible throughout the year, usually in late March to November are spawning, water temperature is 20-25 ℃ spawning period, the