| Title | Effects of climate and land-use changes on fish catches across lakes at a global scale |
| 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. |
| Source | Nature communications |
| Keywords | Climate changeFisheriesLakesLand-use |
| Journal | Nature communications |
| Editor | Nature Publishing Group., London, Regno Unito |
| Year | 2020 |
| Type | Articolo in rivista |
| DOI | 10.1038/s41467-020-14624-2 |
| Authors | Yu-Chun Kao, Mark W. Rogers, David B. Bunnell, Ian G. Cowx, Song S. Qian, Orlane Anneville, T. Douglas Beard Jr., Alexander Brinker, J. Robert Britton, René Chura-Cruz, Natasha J. Gownaris, James R. Jackson, Külli Kangur, Jeppe Kolding, Anatoly A. Lukin, Abigail J. Lynch, Norman Mercado-Silva, Rodrigo Moncayo-Estrada, Friday J. Njaya, Ilia Ostrovsky, Lars G. Rudstam, Alfred L. E. Sandström, Yuichi Sato, Humberto Siguayro-Mamani, Andy Thorpe, Paul A. M. van Zwieten, Pietro Volta, Yuyu Wang, András Weiperth, Olaf L. F. Weyl & Joelle D. Young |
| Text | 422733 2020 10.1038/s41467 020 14624 2 Climate change Fisheries Lakes Land use Effects of climate and land use changes on fish catches across lakes at a global scale Yu Chun Kao, Mark W. Rogers, David B. Bunnell, Ian G. Cowx, Song S. Qian, Orlane Anneville, T. Douglas Beard Jr., Alexander Brinker, J. Robert Britton, Rene Chura Cruz, Natasha J. Gownaris, James R. Jackson, Kulli Kangur, Jeppe Kolding, Anatoly A. Lukin, Abigail J. Lynch, Norman Mercado Silva, Rodrigo Moncayo Estrada, Friday J. Njaya, Ilia Ostrovsky, Lars G. Rudstam, Alfred L. E. Sandstrom, Yuichi Sato, Humberto Siguayro Mamani, Andy Thorpe, Paul A. M. van Zwieten, Pietro Volta, Yuyu Wang, Andras Weiperth, Olaf L. F. Weyl Joelle D. Young USGS 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. Published version https //www.nature.com/articles/s41467 020 14624 2 Article Nat. Comm. 2020.pdf Articolo in rivista Nature Publishing Group. 2041 1723 Nature communications Nature communications Nature communications pietro.volta VOLTA PIETRO |
