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.
Original language | English |
---|---|
Article number | 2526 |
Journal | Nature Communications |
Volume | 11 |
Issue number | 1 |
DOIs | |
Publication status | Published - Dec 1 2020 |
Externally published | Yes |
Bibliographical note
Funding Information:This research was funded by the US Geological Survey National Climate Adaptation Science Center. We thank help from A. Sakas for data compilation and email communication at the beginning of this project. We thank E. Politi for global database support and C. Paukert for comments on an earlier draft of this manuscript. Personal funding supports, data providers, and data sources are acknowledged in Supplementary Note. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the US Government.
Publisher Copyright:
© 2020, The Author(s).
ASJC Scopus Subject Areas
- General Chemistry
- General Biochemistry,Genetics and Molecular Biology
- General Physics and Astronomy
PubMed: MeSH publication types
- Journal Article
- Research Support, U.S. Gov't, Non-P.H.S.