为评价粤东柘林湾海洋牧场的建设效果,以环境卫星遥感和现场调查相结合的方法,对柘林湾海洋牧场建设前(2011年8月)和建设后(2013年8月)海表温度(sea surface temperature,SST)、叶绿素a质量浓度(chlorophyll a concentration,Chl a)、...为评价粤东柘林湾海洋牧场的建设效果,以环境卫星遥感和现场调查相结合的方法,对柘林湾海洋牧场建设前(2011年8月)和建设后(2013年8月)海表温度(sea surface temperature,SST)、叶绿素a质量浓度(chlorophyll a concentration,Chl a)、总渔获物的单位捕捞努力量渔获量(catch per unit effort,CPUE)、生物多样性、底栖动物的生物量及栖息密度等进行了对比分析。结果表明,柘林湾海洋牧场建设后,海域氮磷比(N/P)接近16,Chl a质量浓度由海洋牧场建设前的7.5～12.3 mg·m^(-3)提高到建设后的10.4～16.2 mg·m^(-3)。总渔获物CPUE从2.1～5.5 kg·h^(-1)提高到5.8～14.5 kg·h^(-1)。鱼类、甲壳类、头足类和贝类的种类数分别增加了25种、3种、2种和3种,鱼类、甲壳类、头足类和贝类群落的Shannon-Wiener多样性指数(H′)分别提高了0.5、0.4、0.1和1.0,底栖动物的生物量及栖息密度均有所增加。柘林湾海洋牧场的建设在一定程度上改善了渔业生境,对渔业资源的养护和增殖具有积极作用。展开更多
With further recession and deterioration of offshore fishery resources and increasing living demands, construction of marine ranching becomes a focal point to improve marine biological resources and environment, while...With further recession and deterioration of offshore fishery resources and increasing living demands, construction of marine ranching becomes a focal point to improve marine biological resources and environment, while artificial reef is one of the important parts for marine ranching construction. The artificial reef technology develops slowly in China compared with developed countries, such as the United States and Japan, and there are still many issues urgently to be solved. When an artificial reef is released in water, there are various kinds of forces, and its forces and flow field-effect are closely related to surrounding conditions and its own performance. Currently, there are no mature conclusions on research of hydrodynamics of artificial reef. According to review of hydrodynamics of artificial reefs, we hope to give a full understanding on hydrodynamics performance of artificial reefs, and provide reference and theoretical basis for further research on design and structure of artificial reef in China.展开更多
文摘为评价粤东柘林湾海洋牧场的建设效果,以环境卫星遥感和现场调查相结合的方法,对柘林湾海洋牧场建设前(2011年8月)和建设后(2013年8月)海表温度(sea surface temperature,SST)、叶绿素a质量浓度(chlorophyll a concentration,Chl a)、总渔获物的单位捕捞努力量渔获量(catch per unit effort,CPUE)、生物多样性、底栖动物的生物量及栖息密度等进行了对比分析。结果表明,柘林湾海洋牧场建设后,海域氮磷比(N/P)接近16,Chl a质量浓度由海洋牧场建设前的7.5～12.3 mg·m^(-3)提高到建设后的10.4～16.2 mg·m^(-3)。总渔获物CPUE从2.1～5.5 kg·h^(-1)提高到5.8～14.5 kg·h^(-1)。鱼类、甲壳类、头足类和贝类的种类数分别增加了25种、3种、2种和3种,鱼类、甲壳类、头足类和贝类群落的Shannon-Wiener多样性指数(H′)分别提高了0.5、0.4、0.1和1.0,底栖动物的生物量及栖息密度均有所增加。柘林湾海洋牧场的建设在一定程度上改善了渔业生境,对渔业资源的养护和增殖具有积极作用。
文摘文章根据大型灯光罩网渔船调查数据和卫星遥感海面风场(Sea Surface Wind,SSW)、海表温度(Sea Surface Temperature, SST)和叶绿素a浓度(Chlorophylla concentration, Chla)资料,基于广义线性模型(Generalized Linear Model,GLM)对北部湾渔业资源单位捕捞努力量渔获量(Catch Per Unit Effort,CPUE)进行标准化,应用多元线性回归等方法,对北部湾灯光罩网渔场的时空分布及其与海洋环境的关系进行了分析。结果表明,北部湾灯光罩网渔场适宜SST为27~29℃,Chla为0.5~1.5mg×m^-3。较高资源量出现在10月份中上旬,分布在18°-19°N及20°-21°N海域。北部湾灯光罩网渔场的时空分布与季风、19°N附近的暖水池和Chl a等环境因素有关。
基金Supported by Special Fund for Agro-scientific Research in the Public Interest(NO.201003068)National Science and Technology Ministry(NO.2012BAD18B02)
文摘With further recession and deterioration of offshore fishery resources and increasing living demands, construction of marine ranching becomes a focal point to improve marine biological resources and environment, while artificial reef is one of the important parts for marine ranching construction. The artificial reef technology develops slowly in China compared with developed countries, such as the United States and Japan, and there are still many issues urgently to be solved. When an artificial reef is released in water, there are various kinds of forces, and its forces and flow field-effect are closely related to surrounding conditions and its own performance. Currently, there are no mature conclusions on research of hydrodynamics of artificial reef. According to review of hydrodynamics of artificial reefs, we hope to give a full understanding on hydrodynamics performance of artificial reefs, and provide reference and theoretical basis for further research on design and structure of artificial reef in China.
