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铜对黑鲷早期发育的影响
孙 耀1, 陈 超1, 张友篪2
1.中国水产科学院黄海水产研究所;2.国家海洋局北海分局
摘要:
本文讨论了铜对黑鲷的卵、前期后期仔鱼和幼鱼四个阶段的影响。认为黑鲷的卵阶段对铜最为敏感,随其年龄的增长,黑鲷对铜的敏感性不断降低;通过对卵（4—16细胞）至前期仔鱼（卵黄完全吸收）的连续观察发现:胚孔封闭前的胚胎发育阶段对铜敏感性高于胚孔封闭后的各胚胎发育阶段,与其它某些受试鱼类不同,铜对黑鲷胚胎发育的迟滞效应不明显,并且在孵化前的各胚胎发 育阶段均未发现明显的畸形现象,仅部分初孵化仔鱼的脊椎和尾骨有畸形弯曲。本文还提出:在建立水质标准时,对实验中给出的铜对黑鲷受精卵48小时的半致死浓度（LC5
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基金项目:
EFFECTS OF COPPER ON THE EARLY LIFE HISTORY OF THE BLACK PORGY, SPARUS MACROCEPHALUS (BASILEWSKY)
Abstract:
The effects of copper on the eggs, larvae and juveniles of black porgy, Sparus macro-cephalus (Basilewsky) were analysed. The results showed that the eggs were most sensitive to copper and the capability of resisting copper increases with age. By observing continually the embryos and pre-larvae, it’s found that copper sensitivity of embryos in development before the closure of the blastophore seems higher than that after the closure. And retard effect of copper on embryo development isn’t significant. No malformation was found during the whole embryo development. Only the vertebra and caud of part larvae, which had just been hatched, were bent.
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