柘林湾网箱养殖场不同区域环境因子的强度变化  

Strength Variation of Environmental Factors in Different Cage Culture Area of Zhelin Bay

作　　者：甘居利[1,2] 林钦[1,2] 李纯厚[1,2] 贾晓平[1,2] 林燕棠[1,2] 杨美兰[1,2] 王小平[1,2] 蔡文贵[1,2] 王增焕[1,2] 吕晓瑜[1,2] 

机构地区：[1]中国水产科学研究院南海水产研究所,广东广州510300 [2]中国水产科学研究院海洋渔业生态环境与污染监控技术重点开放实验室,广东广州510300

出　　处：《浙江海洋学院学报（自然科学版）》2001年第1期18-22,共5页Journal of Zhejiang Ocean University(Natural Science Edition)

基　　金：国家"九五"科技攻关项目! (96- 008- 03- 04)

摘　　要：根据 1998年 7月的调查资料，比较了南海东北部柘林湾网箱养殖场不同区域环境因子的强度。结果表明部分环境因子在不同区域的强度有明显差异：海水 DO（Δ =1.68 mg/L）、 O2％（Δ =0.4倍）、 DIN（Δ =1.3倍）、（Δ =2.4倍）和（Δ =9.4倍）在网箱区明显低于对照区；海水（Δ =1倍）和（Δ =0.8倍）、沉积物中（Δ =14倍）、硫化物（Δ =7.7倍）和有机碳（Δ =0.5倍）在网箱区明显高于对照区。从网箱区内到其周围约 3.5 km范围内，海水中 DO、 O2％、 DIN、 pH与网箱区的距离较显著地正相关（ p<0.10），海水、底质、底质硫化物与距离较显著地负相关（ p<0.10）。不同区域内水质的变化与某些污染物强度的变化趋势基本一致。： According to the data collected from Zhelin Bay in July 1998,this paper discussed the strength variation of environmental factors of different regions in cage culture area. The results indicated that strength of some environmental factors varied with different regions. DO(Δ =1.68 mg/L),O2％ (Δ =0.4 time),DIN(Δ =1.3 times),NO3－ N(Δ = 2.4 times） and NH3－ N(Δ = 9.4 times) in water were lower in cage culture region than that in control region. PO4－ P(Δ =1 time) and NO2－ N(Δ =0.8 time) in water,as well as PO4－ P(Δ =14 times),sulfide(Δ =7.7 times) and organic carbon(Δ =0.5 time) in sediment were higher in cage culture region than that in control region. In the range of 3.5 kilometers extending from the cage,DO,O2％ ,DIN and pH positively related to the distances (p<0.10),and sediment sulfide,sediment PO4－ P and water PO4－ P negatively related to the distances (p<0.10).Water quality changed with the strength of several contaminants.

关 键 词：环境因子 强度差异 网箱养殖 柘林湾 水质 沉积物 有机碳 硫化物 

分 类 号：S967.3[农业科学—水产养殖]