加纳Sakumono海滩塞纳河渔业副渔获物中大型藻类的出现

Q4 Environmental Science

West African Journal of Applied Ecology Pub Date : 2009-09-08 DOI:10.4314/WAJAE.V8I1.45787

F. Nunoo, G. Ameka

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引用次数: 6

摘要

大型藻类的密集生长有助于近岸海洋环境的初级生产力，其丰度与渔获量相关。虽然这两种资源是在海滩围网中一起捕获的，但大型藻类通常被渔民视为滋扰，并被丢弃(作为副渔获物)。本研究于1999年11月至2001年9月期间测定了加纳Sakumono海滩围网副渔获物中大型藻类的种类组成、丰度和季节性。数据分析使用单变量和多变量程序的组合。渔获物中大型藻类的物种丰富度较高，且呈逐月变化。渔获物中大型藻类生物量较低(0 ~ 6.7%)，仅占副渔获物的7.7%。讨论了副渔获物中巨藻的意义。

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Occurrence of macro-algae in the by-catch of Beach Seine Fisheries at Sakumono, Ghana

Dense growths of macro-algae contribute to primary productivity in nearshore marine environments and their abundance has been correlated with fish catch. Though the two resources are captured together in beach seine nets, macro-algae are usually regarded as a nuisance by fishermen and discarded (as by-catch). The species composition, abundance and seasonality of macro-algal species in fisheries by-catch of beach seine nets at Sakumono, Ghana were determined between November 1999 and September 2001. Data was analysed using a combination of both univariate and multivariate procedures. The species richness of macro-algae in the catch was high and appeared to vary monthly. Biomass of macro-algae in the catch was found to be low (range 0–6.7%) and formed only 7.7% of the by-catch. The significance of macro-algae in by-catch is discussed.

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来源期刊

West African Journal of Applied Ecology Environmental Science-Ecology

CiteScore

0.80

自引率

0.00%

发文量

期刊介绍： This research journal has been established by the Ecological Laboratory Unit of the University of Ghana, Accra to publish original papers, invited articles and book reviews in English on general ecology. Papers are peer reviewed by consulting editors. The journal is targeted at scientists, policy makers and the general public. The subject areas to be covered include the following: -Theoretical and Applied Ecology- Environmental Studies- Environmental Management- Population Studies- Sustainable use of Natural Resources- Atmospheric Science- Aquatic Sciences and Oceanography- Terrestrial Ecology- Soil Sciences- Human Settlements- Disaster Preparedness and Disaster Reduction- Sustainable Development- Traditional Knowledge on Biodiversity and its sustainable use- Application in Agriculture and Land Use- Health and Environmental Protection