A network of grassroots reserves protects tropical river fish diversity

  title={A network of grassroots reserves protects tropical river fish diversity},
  author={Aaron A. Koning and K. Martin Perales and Etienne Fluet-Chouinard and Peter B. McIntyre},
Intensive fisheries have reduced fish biodiversity and abundance in aquatic ecosystems worldwide 1 – 3 . ‘No-take’ marine reserves have become a cornerstone of marine ecosystem-based fisheries management 4 – 6 , and their benefits for adjacent fisheries are maximized when reserve design fosters synergies among nearby reserves 7 , 8 . The applicability of this marine reserve network paradigm to riverine biodiversity and inland fisheries remains largely untested. Here we show that reserves… 
Emergent dual scaling of riverine biodiversity
It was found that larger and more branched “complex” river networks harbored greater species richness due to increased space and environmental heterogeneity, and the relationships were linear on logarithmic axes, indicating power law scaling by ecosystem size and complexity.
Ecosystem size and complexity dictate riverine biodiversity
It was found that larger and more branched ‘complex’ river networks harbored greater species richness due to increased space and environmental heterogeneity and the complexity effect was comparable to the size effect.
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Both biodiversity and the people in river-associated communities are under severe stress the world over, and solutions should draw on the knowledge, practices and aspirations of those whose lives are most closely entwined with river health.
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Identifying Indicators to Evaluate Community-Managed Freshwater Protected Areas in the Lower Mekong Basin: A Review of Marine and Freshwater Examples
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Measurement and Evolution of High-quality Development Level of Marine Fishery in China
  • B. Li, Zun Liu
  • Environmental Science
    Chinese Geographical Science
  • 2022
This study established an evaluation index system for the high-quality development of China’s marine fishery sector from 2000 to 2016 and explored its spatial and temporal evolution rules.


Designing marine reserve networks for both conservation and fisheries management
This work presents size, spacing, location, and configuration guidelines for designing networks that simultaneously can enhance biological conservation and reduce fishery costs or even increase fishery yields and profits.
Linking freshwater fishery management to global food security and biodiversity conservation
A map of the world’s riverine fisheries is developed and it is found that freshwater fisheries provide the equivalent of all dietary animal protein for 158 million people, revealing that fishing pressure is most intense in rivers where potential impacts on biodiversity are highest.
Community-based management induces rapid recovery of a high-value tropical freshwater fishery
It is quantified how a ‘win-win’ community-based resource management program induced stock recovery of the world’s largest scaled freshwater fish (Arapaima gigas), providing both food and income, and highlighted the need to include local stakeholders in conservation planning of Amazonian floodplains.
Mekong River Fish Conservation Zones in Southern Laos: Assessing Effectiveness Using Local Ecological Knowledge
Assessment of village-managed FCZs in enhancing fish stocks in the mainstream Mekong River in Khong District, Champasak Province shows that integrated approaches to stock assessment that employ LEK and scientific fisheries management have considerable potential for improving Mekong capture-fisheries management.
Spillover from marine reserves and the replenishment of fished stocks
SUMMARY No-take marine reserves are widely recognized as an effective conservation tool for protecting marine resources. Despite considerable empirical evidence that abundance and biomass of fished
We compare and contrast the design of networks of marine reserves for two different, commonly stated goals: (1) maintaining high yield in fisheries and (2) conserving biodiversity, in an idealized
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Summary Assessment of the performance of protected areas in conserving freshwater biodiversity has been limited, has mostly involved small-scale studies and has produced mixed findings. I
Global conservation outcomes depend on marine protected areas with five key features
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Marine reserves: size and age do matter.
Using 58 datasets from 19 European marine reserves, it is shown that reserve size and age do matter: Increasing the size of the no-take zone increases the density of commercial fishes within the reserve compared with outside; whereas thesize of the buffer zone has the opposite effect.