DOI: 10.1002/2017GB005721
Scopus记录号: 2-s2.0-85034245157
论文题名: Pilot Study on Potential Impacts of Fisheries-Induced Changes in Zooplankton Mortality on Marine Biogeochemistry
作者: Getzlaff J ; , Oschlies A
刊名: Global Biogeochemical Cycles
ISSN: 8866236
出版年: 2017
卷: 31, 期: 11 起始页码: 1656
结束页码: 1673
语种: 英语
英文关键词: coupled marine biogeochemistry circulation model
; nutrient limitation
; oxygen minimum zones
; top-down control
; upwelling regions
; zooplankton mortality
Scopus关键词: biogeochemistry
; biomass
; circulation modeling
; fish
; fishery
; marine environment
; mortality
; nutrient limitation
; oxygen minimum layer
; phytoplankton
; planktivory
; primary production
; top-down control
; upwelling
; zooplankton
英文摘要: In this pilot study we link the yield of industrial fisheries to changes in the zooplankton mortality in an idealized way accounting for different target species (planktivorous fish—decreased zooplankton mortality; large predators—increased zooplankton mortality). This indirect approach is used in a global coupled biogeochemistry circulation model to estimate the range of the potential impact of industrial fisheries on marine biogeochemistry. The simulated globally integrated response on phytoplankton and primary production is in line with expectations—a high (low) zooplankton mortality results in a decrease (increase) of zooplankton and an increase (decrease) of phytoplankton. In contrast, the local response of zooplankton and phytoplankton depends on the region under consideration: In nutrient-limited regions, an increase (decrease) in zooplankton mortality leads to a decrease (increase) in both zooplankton and phytoplankton biomass. In contrast, in nutrient-replete regions, such as upwelling regions, we find an opposing response: an increase (decrease) of the zooplankton mortality leads to an increase (decrease) in both zooplankton and phytoplankton biomass. The results are further evaluated by relating the potential fisheries-induced changes in zooplankton mortality to those driven by CO2 emissions in a business-as-usual 21st century emission scenario. In our idealized case, the potential fisheries-induced impact can be of similar size as warming-induced changes in marine biogeochemistry. ©2017. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/77690
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany; Kiel University, Kiel, Germany
Recommended Citation:
Getzlaff J,, Oschlies A. Pilot Study on Potential Impacts of Fisheries-Induced Changes in Zooplankton Mortality on Marine Biogeochemistry[J]. Global Biogeochemical Cycles,2017-01-01,31(11)