学术
饥饿对漠斑牙鲆前期仔鱼生长发育的影响
徐永江[1] 蔡文超[1,2] 柳学周[1]
[1]农业部海洋渔业资源可持续利用重点开放实验室 中国水产科学研究院黄海水产研究所,青岛266071 [2]中国海洋大学水产学院,青岛266003
摘 要:
研究了饥饿对漠斑牙鲆前期仔鱼生长发育的影响，并计算了仔鱼的饥饿不可逆点。结果表明，仔鱼3日龄开口，卵黄于5日龄消耗完毕，油球于6日龄消耗完毕，混合营养期为3～6日龄，饥饿对仔鱼卵黄和油球的吸收速度影响不显著。摄食仔鱼生长呈线性增加，饥饿仔鱼则在饥饿开始一段时间后呈现负增长的趋势。10日龄饥饿仔鱼出现较为明显的饥饿特征，如胸角凸出，消化道萎缩等。在18-20℃培育水温下，仔鱼饥饿不可逆点出现在7日龄和8日龄之间。[著者文摘]
文章出处:
《海洋水产研究》-2007年28卷6期 -51-55页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1000-7075（2007）06-0051-06
Effects of starvation on growth and development of early stage larvae of southern flounder
XU Yong-jiang CAI Wen-chao LIU Xue-zhou （1 Key Laboratory for Sustainable Utilization of Marine Fisheries Resource, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071;2Ocean University of China, Fisheries College, Qingdao 2G6003）
Abstract:
Effects of starvation on growth and development of southern flounder larvae Paralichthys lethostigma were studied, and the point-of-no-return （PNR） was determined. Larvae opened mouth at 3 days after hatching （DAH）; yolk and oil globules were completely absorbed at 5 DAH and 6 DAH, respectively. The mixing diet period was about 4 days. Some remarkable characteristics of starving larvae appeared after 6 DAH, such as pectoral angle （PA） and atrophy of intestines （AI）. Total length （TL） of fed larvae increased continuously; while the starving larvae decreased in TL after 3 DAH when their mouths were open, and the PNR was between 7 DAH and 8 DAH.[著者文摘]
Key words:
Paralichthys lethostigma Larvae Starvation PNR Pectoral angle
基金资助:
农业部948项目（2001-479-4）和青岛市科技局科技计划专项项目（00-02-10-1）共同资助
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