西藏察隅河弧唇裂腹鱼幼鱼食性初步研究  

Preliminary Study on the Feeding Habits of Larval Schizothorax Curilabiatus in the Chayu River,Xizang

作　　者：刘艳超 罗松塔巴 Liu Yanchao;Luosong Taba(Institute of Plateau Biology of Xizang Autonomous Region,Lhasa 850000,China;Middle School of Bomi County,Nyingtri 860000,China)

机构地区：[1]西藏自治区高原生物研究所,拉萨850000 [2]波密县中学,林芝860000

出　　处：《西藏科技》2025年第1期24-28,56,共6页Xizang Science And Technology

基　　金：国家重点研发计划项目(2022YFC2602500);西藏自治区重点研发计划项目(XZ202301ZY0012N);西藏自治区自然科学基金项目(XZ202101ZR0110G)。

摘　　要：以采自察隅河的28尾弧唇裂腹鱼幼鱼为研究对象,对其肠道内容物进行初步分析。结果显示,弧唇裂腹鱼幼鱼的消化道内含物共鉴定出53种(属)饵料生物,包括浮游藻类、原生动物和节肢动物等;其中,硅藻门是出现率百分比和数量百分比最高的饵料生物。多样性指数(H')为2.4487,均匀度指数(J')为0.6292,优势指数(D)为0.1257。弧唇裂腹鱼幼鱼是以硅藻为主要食物的杂食性鱼类。This study conducts a preliminary analysis on the intestinal contents of the specimens of 28 larval Schizothorax curilabiatus collected from the Chayu River.The results show that a total of 53 species(or genera)of prey organisms were identified in the digestive tract contents of larval Schizothorax curilabiatus,including planktonic algae,protozoa,arthropods,and others.Among them,Bacillariophyta had the highest percentage of occurrence and quantity as prey organisms.The diversity index(H')was 2.4487,the evenness index(J')was 0.6292,and the dominance index(D)was 0.1257.Larval Schizothorax curilabiatus are omnivorous fish with diatoms as their primary food source.

关 键 词：弧唇裂腹鱼幼鱼 食性 察隅河 西藏 

分 类 号：S917.4[农业科学—水产科学]