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当前位置: 首页 > 文章 > 广西合浦水库网箱养殖容量研究 南方农业学报 2012,43 (3) 393-396
Position: Home > Articles > Cage-culture capacity of Hepu reservoir(Guangxi) Journal of Southern Agriculture 2012,43 (3) 393-396

广西合浦水库网箱养殖容量研究

作  者：
孔力兵;肖俊军;雷建军;张益峰
单  位：
河池市水产技术推广站;梧州市水产畜牧兽医局;广西水产研究所/广西水产遗传育种与健康养殖重点实验室
关键词：
网箱养殖;养殖容量;水库磷承载力;合浦水库
摘  要：
【目的】估算出广西合浦水库的网箱养殖容量,为北部湾大水面渔业开发规划提供理论依据。【方法】2008年10月～2010年7月,每季度对广西合浦水库的5个站位进行取样调查,通过分析水体氮、磷含量,确定水体营养物的限制性因子;以Dillon-Rigler模型为基础,建立包含水体的有效库容、营养水平、养殖强度和养殖对象等参数的一系列动态模型,并根据模型计算出合浦水库的网箱养殖容量。【结果】磷为水体营养物的限制因子,广西合浦水库磷承载力为43785kg;养殖罗非鱼时最大鱼产力为2686t,水库网箱养殖承载力为0.453‰;斑点叉尾鮰的最大鱼产力为1928t,水库网箱养殖承载力为0.348‰。【结论】广西合浦水库尚有较大养殖容量,但已出现富营养化趋势,不宜继续扩大投饵网箱养殖规模,而应合理开展鲢、鳙鱼生态网箱养殖,利用其滤食性将浮游植物吸收的氮、磷有效地转化为鱼产量。
译  名：
Cage-culture capacity of Hepu reservoir(Guangxi)
作  者：
KONG Li-bing 1,XIAO Jun-jun2,LEI Jian-jun3,ZHANG Yi-feng 3(1 Wuzhou Bureau of Aquaculture,Husbandry and Veterinary,Wuzhou,Guangxi 543002,China;2 Hechi Aquaculture Technology Extension Station,Hechi,Guangxi 547000,China;3 Guangxi Institute of Fisheries /Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture,Nanning 530021,China)
关键词：
cage-culture;carrying capacity;phosphorus bearing capacity of reservoir;Hepu reservoir
摘  要：
[Objective]Cage-culture capacity of Hepu reservoir(Guangxi) was estimated in order to plan and develop big water fishery in Beibu Gulf.[Method]Water samples were collected quarterly at five locations of Hepu reservoir from October 2008 to July 2010.Nitrogen and phosphorus contents in water were analyzed to obtain the restrictive factors on water nutrients.A series of dynamic models with valid reservoir capacity,trophic level,cultural intensity and species,etc.,were constructed on the basis of Dillon-Rigler model for evaluating carrying capacities of cage culture.[Result]Phosphorus was found to be the restrictive factor.Phosphorus bearing capacity of reservoir was recorded as 43785 kg.The carrying capacity of cage-culture Oreochromis niloticus was 0.453‰ with its largest output of 2686 t.The carrying capacity of cage-culture Ictalurus punctatus was 0.348‰,whose biggest production was 1928 t.[Conclusion]Hepu reservoir still has larger carrying capacity,but there's a tendency towards eutrophication.Under these circumstances,cage-culture should be controlled and ecological cage-culture of chub and bighead carp should be developed to effectively transfer nitrogen and phosphorus to fish output by using its filter-feeding.

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