寄生鳜鱼鳃部河鲈锚首吸虫的摄食特点

THE NUTRITION OF A MONOGENEAN.ANCYROCEPHALUS MOGURNDA GUSSEV PARASITIC ON GILIS OF THE MANDARIN FISH, SINIPERCA CHUATSI(BASILEWSKY)

本文报道了鳜鱼［Ｓｉｎｉｐｅｒｃａｃｈｕａｔｓｉ（Ｂａｓｉｌｅｗｓｋｙ）］鳃上寄生的河鲈锚首吸虫［Ａｎｃｙｒｏｃｅｐｈａｌｕｓｍｏｇｕｒｎｄａｅ（Ｇｕｓｓｅｖ）］的食物组成及其能量储存的形式。联苯胺—过氧化物酶染色显示河鲈锚首吸虫摄食宿主的血液，过碘酸Ｓｃｈｉｆｆ氏反应显示其也摄食宿主的粘液。尽管在河鲈锚首吸虫的肠腔发现残余的细胞，但这些细胞是否为宿主的鳃组织细胞尚待进一步的研究证实。河鲈锚首吸虫体内储存有大量的脂肪，表明有氧代谢的存在并可能是能量供给的主要形式，尽管在虫体的实质中也有糖原的存在。

The ingested food materials and energy stores were examined in the monogenean,Ancyrocephalus mogurndae Gussev parasitic on gills of the mandarin fish, Siniperca chuatsi (Basilewsky). Mucus and blood were ingested and found inside intestines of the parasites, as shown by benzidine nitroprusside peroxidase method and by Periodic acid Schiff reaction respectively. Whether A. mogurndae feeds on gill tissues of the host require further investigations although cell residuals found inside the intestines may indicate the possible ingestion of the gill filaments. Numerous globules of lipids and small glycogen deposits were found in the parasites, implying that aerobic metabolism is present in A. mogurndae and may function as a major source of energy supply for the monogenean.