| 海水网箱养殖鱼类越冬期的死亡原因及对策 |
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| 引用本文： | 张永嘉,郑琼,李殊生.海水网箱养殖鱼类越冬期的死亡原因及对策[J].广东海洋大学学报,1993(2). |
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| 作者姓名： | 张永嘉 郑琼 李殊生 |
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| 作者单位： | 湛江水产学院养殖系，湛江水产学院养殖系，湛江水产学院养殖系 湛江 524025，湛江市水产局，广东省茂名市华南养鱼场 |
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| 摘 要： | 在冬春季低水温期,海水网箱养殖的鱼类大批死亡造成了严重的经济损失。本文对死亡的原因进行了初步研究,结果表明:在一定的低水温环境下,这些鱼类虽然因冻伤而造成局部坏死,但维持生命的主要器官的机能仍处于基本正常状态;而患鱼继发感染细菌致病才是其死亡的主要原因。采取适当的越冬防寒措施可提高养殖海鱼在越冬期的成活率。
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| 关 键 词： | 海水鱼类 网箱养殖 冬春季节 死亡 |
STUDY ON MORTALITY OF CAGE-CULTURED MARINE FISH IN THE LOW TEMPERATURE PERIOD OF WINTER-SPRING IN GUANGDONG |
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| Zhang Yongjia et al.STUDY ON MORTALITY OF CAGE-CULTURED MARINE FISH IN THE LOW TEMPERATURE PERIOD OF WINTER-SPRING IN GUANGDONG[J].Journal of Zhanjiang Ocean University,1993(2). |
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| Authors: | Zhang Yongjia |
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| Abstract: | The mass-mortality. which causes heavy economic losses of cage-cultured marine fish in the low temperature period of winter-spring in Guangdong is studied. The results show that the causative agent of the mass-mortality is secondary infection although focal necroses occur in the frostbitten fish, the function of the vital organs is still in normal condition. Bacterial secondary infections in the fish may generalize septicemias, and the fish show gill-rot, caudal rot, and ulcerative disease. Many experiments for increasing the survival rate of the cage-cultured fish in winter-spring have been conducted. |
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| Keywords: | Marine fish Cage-culture Winter-spring season Mortality |
| 本文献已被 CNKI 等数据库收录！ |
