Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1612722114 |
High fishery catches through trophic cascades in China | |
Szuwalski, Cody S.1,2,3; Burgess, Matthew G.1,2,3; Costello, Christopher1,2,3; Gaines, Steven D.1,2,3 | |
2017-01-24 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2017 |
卷号 | 114期号:4页码:717-721 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Indiscriminate and intense fishing has occurred in many marine ecosystems around the world. Although this practice may have negative effects on biodiversity and populations of individual species, it may also increase total fishery productivity by removing predatory fish. We examine the potential for this phenomenon to explain the high reported wild catches in the East China Sea-one of the most productive ecosystems in the world that has also had its catch reporting accuracy and fishery management questioned. We show that reported catches can be approximated using an ecosystem model that allows for trophic cascades (i.e., the depletion of predators and consequent increases in production of their prey). This would be the world's largest known example of marine ecosystem "engineering" and suggests that trade-offs between conservation and food production exist. We project that fishing practices could be modified to increase total catches, revenue, and biomass in the East China Sea, but single-species management would decrease both catches and revenue by reversing the trophic cascades. Our results suggest that implementing single-species management in currently lightly managed and highly exploited multispecies fisheries (which account for a large fraction of global fish catch) may result in decreases in global catch. Efforts to reform management in these fisheries will need to consider system wide impacts of changes in management, rather than focusing only on individual species. |
英文关键词 | ecosystem management China fisheries trophic cascades food security |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000392597000046 |
WOS关键词 | MANAGEMENT |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204796 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Calif Santa Barbara, Sustainable Fisheries Grp, Santa Barbara, CA 93106 USA; 2.Univ Calif Santa Barbara, Bren Sch Environm Sci & Management, Santa Barbara, CA 93106 USA; 3.Univ Calif Santa Barbara, Marine Sci Inst, Santa Barbara, CA 93106 USA |
推荐引用方式 GB/T 7714 | Szuwalski, Cody S.,Burgess, Matthew G.,Costello, Christopher,et al. High fishery catches through trophic cascades in China[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(4):717-721. |
APA | Szuwalski, Cody S.,Burgess, Matthew G.,Costello, Christopher,&Gaines, Steven D..(2017).High fishery catches through trophic cascades in China.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(4),717-721. |
MLA | Szuwalski, Cody S.,et al."High fishery catches through trophic cascades in China".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.4(2017):717-721. |
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