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Effects of temperature and salinity on embryonic development of barfin flounder Verasper moseri
Author(s): WANG Yan-yan1, 2 LIU Xue-zhou1 LIU Xin-fu1 CHEN Chao1 XU Yong-jiang1 ZHAI Jie-ming3
Pages: 27-
32
Year: 2008
Issue:
6
Journal: Progress in Fishery Sciences
Keyword: GetLinkList(KeywordFilter('条斑星鲽; 胚胎发育; 温度; 盐度'); 'kw'; 'CJFQ');
Abstract: 就温度、盐度对条斑星鲽胚胎发育的影响作了初步探讨。实验表明,胚胎发育的适宜温度为6~12℃,最适水温为8~10℃,在适温范围内胚胎孵化速度与温度呈正相关关系(N=65.925T-0.9672)。盐度低于27,受精卵下沉,27~30之间悬浮于水体中,盐度高于35,受精卵浮于水面。胚胎孵化的适宜盐度范围、最适盐度范围分别为25~40和28~36;盐度低于25或高于40,孵化率都降低。研究表明,条斑星鲽胚胎发育的生物学零度(阈温度)为-0.1℃,有效积温值为1726.48℃.h。另外,根据其Q10值推算的胚胎发育的适宜水温与实验结果相似。
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