An assessment of “fishing down marine food webs” in coastal states during 1950-2010

DING Qi; CHEN Xinjun; YU Wei; CHEN Yong

doi:10.1007/s13131-017-1003-5

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Article Navigation > Acta Oceanologica Sinica > 2017 > 36(2): 43-50

DING Qi, CHEN Xinjun, YU Wei, CHEN Yong. An assessment of “fishing down marine food webs” in coastal states during 1950-2010[J]. Acta Oceanologica Sinica, 2017, 36(2): 43-50. doi: 10.1007/s13131-017-1003-5

Citation:

DING Qi, CHEN Xinjun, YU Wei, CHEN Yong. An assessment of “fishing down marine food webs” in coastal states during 1950-2010[J]. Acta Oceanologica Sinica, 2017, 36(2): 43-50. doi: 10.1007/s13131-017-1003-5

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An assessment of “fishing down marine food webs” in coastal states during 1950-2010

doi: 10.1007/s13131-017-1003-5

1.
College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;Collaborative Innovation Center for Distant-water Fisheries, Shanghai 201306, China
2.
College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources of Ministry of Education, Shanghai Ocean University, Shanghai 201306, China;National Engineering Research Center for Oceanic Fisheries, Shanghai Ocean University, Shanghai 201306, China;Collaborative Innovation Center for Distant-water Fisheries, Shanghai 201306, China
3.
School of Marine Sciences, University of Maine, Orono, Maine 04469, USACollaborative Innovation Center for Distant-water Fisheries, Shanghai 201306, China

Received Date: 2015-12-31
Rev Recd Date: 2016-04-12

Abstract

Abstract

Mean trophic level of fishery landings (MTL) is one of the most widely used biodiversity indicators to assess the impacts of fishing. Based on the landing data compiled by Food and Agriculture Organization combined with trophic information of relevant species in FishBase, we evaluated the status of marine fisheries from 1950 to 2010 for different coastal states in Pacific, Atlantic and Indian Oceans. We found that the phenomenon of "fishing down marine food webs" occurred in 43 states. Specifically, 27 states belonged to "fishing-through" pattern, and 16 states resulted from "fishing-down" scenario. The sign of recovery in MTL was common in the Pacific, Atlantic and Indian Oceans (occurred in 20 states), but was generally accompanied by significantly decreased catches of traditional low trophic level species. In particular, 11 states showed significant declining catches of lower trophic levels. The MTL-based assessment of "fishing down marine food webs" needs to be interpreted cautiously.
- coastal states,
- exploitation history,
- fishing down marine food webs,
- sustainability,
- marine fisheries,
- mean trophic level of fishery landings

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