DOI: 10.1111/gcb.14556
Scopus记录号: 2-s2.0-85060647203
论文题名: Quantifying multiple pressure interactions affecting populations of a recreationally and commercially important freshwater fish
作者: Gutowsky L.F.G. ; Giacomini H.C. ; de Kerckhove D.T. ; Mackereth R. ; McCormick D. ; Chu C.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2019
卷: 25, 期: 3 起始页码: 1049
结束页码: 1062
语种: 英语
英文关键词: angling
; fisheries
; inland lakes
; invasive species
; multiple stressors
; R-INLA
; Sander vitreus
; velocity of climate change
Scopus关键词: Dreissena polymorpha
; Sander vitreus
; Stizostedion vitreum
英文摘要: The expanding human global footprint and growing demand for freshwater have placed tremendous stress on inland aquatic ecosystems. Aichi Target 10 of the Convention on Biological Diversity aims to minimize anthropogenic pressures affecting vulnerable ecosystems, and pressure interactions are increasingly being incorporated into environmental management and climate change adaptation strategies. In this study, we explore how climate change, overfishing, forest disturbance, and invasive species pressures interact to affect inland lake walleye (Sander vitreus) populations. Walleye support subsistence, recreational, and commercial fisheries and are one of most sought-after freshwater fish species in North America. Using data from 444 lakes situated across an area of 475 000 km 2 in Ontario, Canada, we apply a novel statistical tool, R-INLA, to determine how walleye biomass deficit (carrying capacity—observed biomass) is impacted by multiple pressures. Individually, angling activity and the presence of invasive zebra mussels (Dreissena polymorpha) were positively related to biomass deficits. In combination, zebra mussel presence interacted negatively and antagonistically with angling activity and percentage decrease in watershed mature forest cover. Velocity of climate change in growing degree days above 5°C and decrease in mature forest cover interacted to negatively affect walleye populations. Our study demonstrates how multiple pressure evaluations can be conducted for hundreds of populations to identify influential pressures and vulnerable ecosystems. Understanding pressure interactions is necessary to guide management and climate change adaptation strategies, and achieve global biodiversity targets. © 2018 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117475
Appears in Collections: 气候变化与战略
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Recommended Citation:
Gutowsky L.F.G.,Giacomini H.C.,de Kerckhove D.T.,et al. Quantifying multiple pressure interactions affecting populations of a recreationally and commercially important freshwater fish[J]. Global Change Biology,2019-01-01,25(3)