| 湛江港区底泥悬浮物对近江牡蛎的毒害效应 |
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| 引用本文： | 叶健欣,杨锋,李兰涛,叶宁,林尤通.湛江港区底泥悬浮物对近江牡蛎的毒害效应[J].广东海洋大学学报,2010,30(6). |
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| 作者姓名： | 叶健欣 杨锋 李兰涛 叶宁 林尤通 |
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| 作者单位： | 1. 湛江市海洋与渔业环境监测站,广东,湛江,524039
2. 广东海洋大学水产学院,广东,湛江,524025 |
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| 摘 要： | 模拟湛江港涉海工程施工产生的悬浮物,探讨底泥悬浮物对工程附近海区近江牡蛎养殖的影响,研究不同浓度悬浮物对大、小规格近江牡蛎(Crassostrea rivularis)的毒害效应。结果表明,悬浮物对大规格近江牡蛎(8.12±1.76 cm)的毒害影响不明显;对小规格近江牡蛎(2.33±0.78 cm),悬浮物浓度≤270 mg/L时死亡率低于30%,悬浮物浓度≥810 mg/L时死亡明显增加,死亡率达60%。通过概率单位法计算,小规格近江牡蛎的96 h半致死浓度为627.17 mg/L。
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| 关 键 词： | 悬浮物 毒害效应 近江牡蛎 湛江 |
Toxic Effects of Suspended Substances on Crassostrea rivularis in Zhanjiang Harbor |
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| YE Jian-xin,YANG Feng,LI Lan-tao,YE Ning,LIN You-tong.Toxic Effects of Suspended Substances on Crassostrea rivularis in Zhanjiang Harbor[J].Journal of Zhanjiang Ocean University,2010,30(6). |
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| Authors: | YE Jian-xin YANG Feng LI Lan-tao YE Ning LIN You-tong |
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| Abstract: | Simulating suspended substances made by coastal marine engineering construction process in Zhanjiang,we researched the toxicity of suspended substances on cultured Crassostrea rivularis.The results show that in the 7 d trial period,the toxic effect of suspended substances on Crassostrea rivularis at large size(8.12±1.76 cm) was not obvious.When the concentration of suspended substances was less than 270 mg/L,mortality of small sized Crassostrea rivularis(2.33±0.78 cm)was at a low level with the mortality rate of 30%.But the mortality rate of small sized Crassostrea rivularis increased significantly and reached 60%,when suspended substances concentration was more than 810 mg/L.The lethal concentration of suspended substances to Crassostrea rivularis at size of 2.33±0.78 cm was 627.17 mg/L within 96 hours. |
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| Keywords: | suspended substances toxic effects Crassostrea rivularis |
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