21世纪是海洋的世纪。为探究进入21世纪后全球在海洋经济方面的研究演进路径和未来可能的研究热点,文章选取Web of Science核心数据库中主题为"Marine Economy"或"Marine Economics"的1444篇期刊论文,利用Citespac...21世纪是海洋的世纪。为探究进入21世纪后全球在海洋经济方面的研究演进路径和未来可能的研究热点,文章选取Web of Science核心数据库中主题为"Marine Economy"或"Marine Economics"的1444篇期刊论文,利用Citespace软件分别进行科学合作网络分析、关键词共现分析和文献共被引分析。结果发现:进入21世纪以来,全球对海洋经济研究的关注度普遍提升。(1)美国、中国和英国构成了海洋经济领域研究的核心力量,但欧美国家之间机构合作较为密切,我国海洋研究机构国内外合作仍需加强,国际影响力仍需进一步提升;(2)现有海洋经济研究除聚焦渔业管理、海洋经济增长以及相关影响因素问题,还注重生态系统服务、环境保护等可持续性发展的问题;(3)近年来海洋经济研究相关热点开始转向小规模渔业管理、海洋生态环境保护、海洋产业空间布局和海洋休闲渔业,尤其是小规模渔业管理和海洋生态环境保护,是未来海洋经济研究需要重点关注的方向。展开更多
This paper has attempted to show the contribution of Lake Victoria small-scale fisheries to poverty alleviation. Two districts in Mwanza region in the Lake Victoria Zone were identified for a field research. The two d...This paper has attempted to show the contribution of Lake Victoria small-scale fisheries to poverty alleviation. Two districts in Mwanza region in the Lake Victoria Zone were identified for a field research. The two districts are Sengerema and Ilemela. The results show that during high catch season both fishers and fishing gear owners generated high incomes, although gear owners were relatively far better than fishers. This was true for both Sardines and Nile perch fisheries. For instance, during high catch season, 39 sardine fishers each generated monthly income that ranged between $300 and $1,100, and 18 further fishers each generated income that was below $300. However, during low catch season, the incomes generated were very low for both fishers and gear owners to an extent of not even recovering the variable costs. The scenario was different with Nile perch fishers, out of 53 fishers that were sampled, 44 fishers each generated net monthly income that was below $400 during high catch season and during low catch season, 46 out of 53 fishers each generated net monthly income that was below $200. Fishers were the hardest hit during low catch season.展开更多
文摘21世纪是海洋的世纪。为探究进入21世纪后全球在海洋经济方面的研究演进路径和未来可能的研究热点,文章选取Web of Science核心数据库中主题为"Marine Economy"或"Marine Economics"的1444篇期刊论文,利用Citespace软件分别进行科学合作网络分析、关键词共现分析和文献共被引分析。结果发现:进入21世纪以来,全球对海洋经济研究的关注度普遍提升。(1)美国、中国和英国构成了海洋经济领域研究的核心力量,但欧美国家之间机构合作较为密切,我国海洋研究机构国内外合作仍需加强,国际影响力仍需进一步提升;(2)现有海洋经济研究除聚焦渔业管理、海洋经济增长以及相关影响因素问题,还注重生态系统服务、环境保护等可持续性发展的问题;(3)近年来海洋经济研究相关热点开始转向小规模渔业管理、海洋生态环境保护、海洋产业空间布局和海洋休闲渔业,尤其是小规模渔业管理和海洋生态环境保护,是未来海洋经济研究需要重点关注的方向。
文摘This paper has attempted to show the contribution of Lake Victoria small-scale fisheries to poverty alleviation. Two districts in Mwanza region in the Lake Victoria Zone were identified for a field research. The two districts are Sengerema and Ilemela. The results show that during high catch season both fishers and fishing gear owners generated high incomes, although gear owners were relatively far better than fishers. This was true for both Sardines and Nile perch fisheries. For instance, during high catch season, 39 sardine fishers each generated monthly income that ranged between $300 and $1,100, and 18 further fishers each generated income that was below $300. However, during low catch season, the incomes generated were very low for both fishers and gear owners to an extent of not even recovering the variable costs. The scenario was different with Nile perch fishers, out of 53 fishers that were sampled, 44 fishers each generated net monthly income that was below $400 during high catch season and during low catch season, 46 out of 53 fishers each generated net monthly income that was below $200. Fishers were the hardest hit during low catch season.
