集美大学学报（自然科学版）Issue(4)：241-248,8.
饥饿对半刺厚唇鱼（Acrossocheilius hemispinus）仔鱼早期发育的主要影响
Effects of Starvation on Feeding, Growth, Survival and Development of Acrossocheilius hemispinus Larvae
摘要
Abstract
In order to determine its starvation tolerance and point-of -no-return ( PNR) , the effects of starvation on feeding, growth, survival and development of Acrossocheilius hemispinus larvae were investigated at the temperature of (26. 5 ± 3)℃ using experimental ecological method. The results showed that: the ini-tial feeding of A. hemispinus larvae occurred at 5 days of age and the yolk sac of the larvae were disappeared almost at the same time, the A. hemispinus larvae, did not experience mixed vegetative period thus it belongs to the fish of highly vulnerable to starvation stress; the highest initial feeding rate of larval emergence was de-tected at the age of 6~11 days, the PNR of the larvae occurred at 15 d after hatching. Results also showed that some larvael have a higher hunger-resistame which with feeding ability of 11 d, and some of them were a-ble to survive for 3~4 d after the PNR; starved larvae exhibited negative growth at age of 9 d when measured in full-length, and most of the starved larvae die at age of 17 d. Larvae in the PNR period did not show“pectoral angle”, while their posterior chamber of the swimbladder shrank significantly, and the development of the 6th black longitudinal bands of these starved larvae was significantly delayed. These characteristics may be used for identification of larvae of A. hemispinus in starvation.关键词
半刺厚唇鱼/仔鱼/饥饿/不可逆点/摄食Key words
Acrossocheilius hemispinus/larvae/starvation/point of no return(PNR)/feeding分类
农业科技引用本文复制引用
秦志清..饥饿对半刺厚唇鱼（Acrossocheilius hemispinus）仔鱼早期发育的主要影响[J].集美大学学报（自然科学版）,2015,(4):241-248,8.基金项目
国家大宗淡水鱼类产业技术体系基金资助项目( CARS -46) （ CARS -46）
福建省属公益类基金资助项目(2014R1102-9) （2014R1102-9）
福建省农业“五新”工程项目(闽发改投资2014482号) （闽发改投资2014482号）
福建省地方品种资源保护类项目 （）
