%0 Journal Article
%T The feeding of Yellow Catfish, Pelteobagrus fulvidraco in early developmental stages<br>黄颡鱼早期发育阶段摄食的研究
%A Fang wei
%A FAN Qi xue
%A yang rui bin
%A xie cong xin
%A zhang lei
%A li bo
%A yang kai
%A <br>方巍
%A 樊启学
%A 杨瑞斌
%A 谢从新
%A 张　磊
%A 李 波
%A 杨　凯
%J 水生态学杂志
%D 2010
%I 
%X The diet composition, feeding behavior and the daily feeding rhythm of yellow catfish, Pelteobagrus fulvidraco were studied through the method of experimental ecology for day-9, day-13, day-17 and day-23 in the paper. The results were as following: Larvae and juvenile mainly fed on zooplankton, and occasionally their diet also changed with their growth. Larvae fed on cladocerans and rotifera in the first feeding stage (9th day after being hatched), the abundance and biomass percent of cladocera were 86.71% and 89.65% respectively, holding overwhelming superiority. After that, when the groups of zooplankton in their stomach increased, their selection changed, the main food was cladocera for day-13 and day-17 yet; from 23th day after being hatched, juvenile mainly fed on copepoda, from 3.29% initially to 26.68% for day-23. Moreover, from the 13th after being hatched, the zoobenthos, chironomid larvae et al, occupied the main superiority in food composition. Day and night feeding rhythm was observed apparently in larval and juvenile stages. The highest levels of feeding activity at 20:00(897.7) and the lowest levels at 19:00(161.8) for day-9, after that, The peak means stomach fullness index of all achieved at 4:00 (914.1,1113.1 and 199.7), and got their lowest points at 19:00, 19:00 and 16:00, they were 50.9,60.9 and 76.6, respectively. The feeding levels at night were significantly higher than that in day, the circadian feeding rhythm of yellow catfish belongs to nocturnal obviously.
%K 黄颡鱼
%K 食物
%K 选食行为
%K 摄食节律
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=A129AB11A5573C59&jid=AD42C12863085B5F664F8056EF6D57C2&aid=D052CD70D87C5974101EBBFFFFFB3322&yid=140ECF96957D60B2&vid=4AD960B5AD2D111A&iid=94C357A881DFC066&sid=9971A5E270697F23&eid=42425781F0B1C26E&journal_id=1674-3075&journal_name=水生态学杂志&referenced_num=0&reference_num=0