Paleoceanography and paleoclimatology of the Southern Ocean
- 作者：Detlef Warnke ; Gabriel M. Filippelli ; José ; -Abel Flores
- 关键词：Fisheries ; Social science ; Human dimensions ; Collapse ; Climate
- 刊名：Deep Sea Research Part II ; Topical Studies in Oceanography
- 出版年：2007
- 期刊代码：20_09670645
- 类别：ear
- 出版时间：October-November 2007
- 卷：54
- 期：21-22
- 页码：2291-2292
- 文件大小：87 K
摘要
Interdisciplinary studies comparing fisheries-dependent regions across the North Atlantic find a number of broad patterns. Large ecological shifts, disastrous to historical fisheries, have resulted when unfavorable climatic events occur atop overfishing. The “teleconnections” linking fisheries crises across long distances include human technology and markets, as well as climate or migratory fish species. Overfishing and climate-driven changes have led to a shift downwards in trophic levels of fisheries takes in some ecosystems, from dominance by bony fish to crustaceans. Fishing societies adapt to new ecological conditions through social reorganization that have benefited some people and places, while leaving others behind. Characteristic patterns of demographic change are among the symptoms of such reorganization. These general observations emerge from a review of recent case studies of individual fishing communities, such as those conducted for the North Atlantic Arc research project.