1. Effects of climate and land-use changes on fish catches across lakes at a global scale
- Author
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Humberto Siguayro-Mamani, Orlane Anneville, Natasha J. Gownaris, Alfred Sandström, Pietro Volta, Lars G. Rudstam, András Weiperth, Song S. Qian, Jeppe Kolding, Abigail J. Lynch, Yuyu Wang, Anatoly A. Lukin, James R. Jackson, Ilia Ostrovsky, David B. Bunnell, René Chura-Cruz, Friday J. Njaya, Rodrigo Moncayo-Estrada, Külli Kangur, Andy Thorpe, Norman Mercado-Silva, Ian G. Cowx, Olaf L. F. Weyl, J. Robert Britton, T. Douglas Beard, Paul A.M. van Zwieten, Mark W. Rogers, Alexander Brinker, Yuichi Sato, Yu-Chun Kao, Joelle D. Young, Department of Computer Science [Colorado State University], Colorado State University [Fort Collins] (CSU), Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques (CARRTEL), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Bournemouth University [Poole] (BU), Bullard Laboratories, University of Cambridge [UK] (CAM), Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences (EMU), Department of Biology, University of Washington [Seattle], Department of Natural Resources, Cornell University [New York], Katayose Lab, Kwansei Gakuin University, Consiglio Nazionale delle Ricerche (CNR), and US Geological Survey National Climate Adaptation Science Center
- Subjects
0106 biological sciences ,010504 meteorology & atmospheric sciences ,Ecosystem ecology ,Science ,Fisheries ,General Physics and Astronomy ,Climate change ,01 natural sciences ,Article ,General Biochemistry, Genetics and Molecular Biology ,Ecosystem services ,Aquaculture and Fisheries ,Water Quality ,Animals ,Humans ,Life Science ,Ecosystem ,14. Life underwater ,lcsh:Science ,Land-use ,Ecological modelling ,0105 earth and related environmental sciences ,2. Zero hunger ,Multidisciplinary ,Food security ,Land use ,Aquacultuur en Visserij ,010604 marine biology & hydrobiology ,Climate-change ecology ,Fishes ,Temperature ,General Chemistry ,15. Life on land ,Livelihood ,6. Clean water ,Fishery ,Lakes ,13. Climate action ,[SDE]Environmental Sciences ,WIAS ,Freshwater ecology ,Environmental science ,lcsh:Q ,Water quality - Abstract
Globally, our knowledge on lake fisheries is still limited despite their importance to food security and livelihoods. Here we show that fish catches can respond either positively or negatively to climate and land-use changes, by analyzing time-series data (1970–2014) for 31 lakes across five continents. We find that effects of a climate or land-use driver (e.g., air temperature) on lake environment could be relatively consistent in directions, but consequential changes in a lake-environmental factor (e.g., water temperature) could result in either increases or decreases in fish catch in a given lake. A subsequent correlation analysis indicates that reductions in fish catch was less likely to occur in response to potential climate and land-use changes if a lake is located in a region with greater access to clean water. This finding suggests that adequate investments for water-quality protection and water-use efficiency can provide additional benefits to lake fisheries and food security., Lake fisheries are vulnerable to environmental changes. Here, Kao et al. develop a Bayesian networks model to analyze time-series data from 31 major fisheries lake across five continents, showing that fish catches can respond either positively or negatively to climate and land-use changes.
- Published
- 2020
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