Boosting freshwater fish conservation with high‐resolution distribution mapping across a large territory

Conservation Biology, Journal Year: 2022, Volume and Issue: 37(3)

Published: Nov. 25, 2022

Abstract The lack of high‐resolution distribution maps for freshwater species across large extents fundamentally challenges biodiversity conservation worldwide. We devised a simple framework to delineate the distributions fishes in drainage map based on stacked models and expert information. applied this entire Chinese fish fauna (>1600 species) examine patterns reveal potential conflicts between anthropogenic disturbances. correlations spatial facets (species richness, endemicity, phylogenetic diversity) were all significant ( r = 0.43–0.98, p < 0.001). Areas with high values different overlapped Existing protected areas (PAs), covering 22% China's territory, 25–29% habitats, 16–23% species, 30–31% priority areas. Moreover, 6–21% completely unprotected. These results suggest need extending network PAs ensure goods services they provide. Specifically, middle low reaches rivers their associated lakes from northeast southwest China hosted most diverse assemblages thus should be target future expansions PAs. More generally, our framework, which can used draw combining occurrence data knowledge distribution, provides an efficient way design regardless ecosystem, taxonomic group, or region considered.

Language: Английский

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Future-proofing the emergency recovery plan for freshwater biodiversity

Environmental Reviews, Journal Year: 2023, Volume and Issue: 32(3), P. 350 - 365

Published: June 19, 2023

Freshwater biodiversity loss is accelerating globally, but humanity can change this trajectory through actions that enable recovery. To be successful, these require coordination and planning at a global scale. The Emergency Recovery Plan for freshwater aims to reduce the risk six priority actions: (1) accelerate implementation of environmental flows; (2) improve water quality sustain aquatic life; (3) protect restore critical habitats; (4) manage exploitation species riverine aggregates; (5) prevent control nonnative invasions in (6) safeguard connectivity. These implemented using future-proofing approaches anticipate future risks (e.g., emerging pollutants, new invaders, synergistic effects) minimize likely stressors make conservation more resilient climate other challenges. While uncertainty with respect past observations not concern biodiversity, has distinction accounting conditions have no historical baseline. level unprecedented. Future-proofing will anticipating changes developing implementing address those changes. Here, we showcase successful local case studies examples. Ensuring response options within are future-proofed provide decision makers science-informed choices, even face uncertain potentially conditions. We an inflection point loss; learning from defeats successes support improved toward sustainable future.

Language: Английский

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100 key questions to guide hydropeaking research and policy

Renewable and Sustainable Energy Reviews, Journal Year: 2023, Volume and Issue: 187, P. 113729 - 113729

Published: Sept. 16, 2023

As the share of renewable energy grows worldwide, flexible production from peak-operating hydropower and phenomenon hydropeaking have received increasing attention. In this study, we collected open research questions 220 experts in river science, practice, policy across globe using an online survey available six languages related to hydropeaking. We used a systematic method determining expert consensus (Delphi method) identify 100 high-priority following thematic fields: (a) hydrology, (b) physico-chemical properties water, (c) morphology sediment dynamics, (d) ecology biology, (e) socio-economic topics, (f) markets, (g) regulation, (h) management mitigation measures. The list shall inform guide researchers focusing their efforts foster better science-policy interface, thereby improving sustainability variety settings. find that there is already strong understanding ecological impact efficient techniques support sustainable hydropower. Yet, disconnect remains its implementation.

Language: Английский

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An alarming tendency towards freshwater mussel misidentification in scientific works may bias endangered and invasive species management

Aquatic Conservation Marine and Freshwater Ecosystems, Journal Year: 2024, Volume and Issue: 34(1)

Published: Jan. 1, 2024

Abstract Freshwater mussels (order Unionida) are a popular group for wide array of non‐taxonomic research driven by questions related to their functions in ecosystems, relationships among species, biogeochemical and morphometric patterns certain species others. Valid taxonomy correct identification key requirements all these aspects. However, species‐level representatives from this is rather complicated task should be based on an integrative approach, combining DNA sequences, morphological anatomical investigation biogeographical estimates. This article reconsiders selection scientific works ( N = 25), containing misidentified occurrences freshwater mussel species. The dataset contains records the endangered Margaritifera margaritifera (endemic eastern North America Europe) Philippines West Africa, as well Nearctic Gonidea angulata Africa Middle East. Several Palearctic unionid were erroneously reported Indus River, Pakistan. Subfossil shells native Simpsonella sp. prehistoric site invasive Sinanodonta woodiana that was introduced islands 20th century. Samples tropical lineage S. Indonesia mistaken Pilsbryoconcha exilis , vice versa. Salinity tolerance characteristics estuarine clam Geloina (Cyrenidae) Sumatra examined, but data published belonging strictly . It clear information, being reused researchers, conservationists stakeholders, will lead incorrect conclusions range, status, biogeochemistry, morphometry ecological taxa, including (the so‐called ‘error cascades’ biological sciences caused ‘bad taxonomy’). To reduce growing body literature misidentifications Unionida practical recommendations proposed who include surveys, journal editors dealing with articles focus animals.

Language: Английский

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Toward a Brighter Future: Enhanced Sustainable Methods for Preventing Algal Blooms and Improving Water Quality

Hydrobiology, Journal Year: 2024, Volume and Issue: 3(2), P. 100 - 118

Published: May 29, 2024

This comprehensive review explores the escalating challenge of nutrient enrichment in aquatic ecosystems, spotlighting dire ecological threats posed by harmful algal blooms (HABs) and excessive particulate organic matter (POM). Investigating recent advancements water treatment technologies management strategies, study emphasizes critical need for a multifaceted approach that incorporates physical, chemical, biological methods to effectively address these issues. By conducting detailed comparative analyses across diverse environments, it highlights complexities mitigating HABs underscores importance environment-specific strategies. The paper advocates sustainable, innovative solutions international cooperation enhance global quality ecosystem health. It calls ongoing advancement, regular monitoring, research adapt emerging challenges, thus ensuring preservation biodiversity protection communities reliant on vital resources. necessity integrating technological innovation, understanding, safeguard ecosystems future generations is paramount.

Language: Английский

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Time for decisive actions to protect freshwater ecosystems from global changes

Knowledge and Management of Aquatic Ecosystems, Journal Year: 2022, Volume and Issue: 423, P. 19 - 19

Published: Jan. 1, 2022

Freshwater ecosystems and their biodiversity provide fundamental services to humans such as nutritional resources production, water provisioning, purification, recreation, more globally climate regulation. Anthropogenic impacts on freshwater are already strong will most probably increase in the near future. drivers widely known include particular, change, habitat shrinking and/or modification due land-use ( e.g . abstraction for human agricultural consumption, urbanization), fragmentation homogenization stream flow dynamics damming of rivers, introduction non-native species, dumping nutrient or organic loadings increasing eutrophication processes, over-exploitation. Here, I review current future effects these anthropogenic some few examples existing solutions, either technological, nature-based policy-based, that could be applied halt minimize negative consequences. However, success require systemic changes across public policy a sufficient political do so.

Language: Английский

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Effects of ZnWO4 nanoparticles on growth, photosynthesis, and biochemical parameters of the green microalga Raphidocelis subcapitata

Chemosphere, Journal Year: 2024, Volume and Issue: 353, P. 141590 - 141590

Published: March 7, 2024

Language: Английский

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What do stakeholders perceive as success in large scale environmental monitoring design?

Frontiers in Environmental Science, Journal Year: 2025, Volume and Issue: 12

Published: Jan. 10, 2025

The decline in global freshwater biodiversity demands urgent action. Governments are attempting to use environmental management partly restore degraded ecosystems through targeted interventions. Designing monitoring programs assess the success of these large-scale is challenging. There much literature addressing technical challenges program design, and many studies acknowledge limitations current implementation. In this study, we examine perspectives those managers scientists involved designing a their understanding what makes successful. We focus on an flow (the Flow Monitoring, Evaluation Research program—Flow-MER—in Australia). Through semi-structured interviews surveys, aimed identify consider be “success” for projects. outcomes highlight that—consistent with literature—clear objectives considered pivotal project success. However, despite recognition, establishing clear were identified as pressing concern Flow-MER program. survey results included recurring emphasis from participants importance consistent, long-term datasets. was less clarity around how balance design both demonstrate address key scientific uncertainties part adaptive monitoring. findings show that while there broadly common large major such continue fall short successful design. approach surveying program, along articulated shortfalls, provide insights improve implementation future programs. particular, need establish invest effective communication strategies.

Language: Английский

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Simulation of the impacts of constructed wetlands on river flow using WSIMOD

Journal of Hydrology, Journal Year: 2025, Volume and Issue: unknown, P. 133065 - 133065

Published: March 1, 2025

Language: Английский

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Managing Isolation: Implementing In‐Stream Barriers to Exclude Introduced Trout From Fragmented Native Freshwater Fish Refuges

River Research and Applications, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

ABSTRACT Fish invasions are a key driver of change in freshwater systems, impacting biodiversity and economies. The use in‐stream barriers to prevent or mitigate such protect native fish populations, known as isolation management (IM), has been increasingly reported. However, despite the need secure vulnerable trade‐offs between invasion likely, it is unclear if current knowledge supports optimal long‐term outcomes. Aotearoa New Zealand history using exclusion incursions introduced sports into river‐resident galaxiid (RRG) refuges predominantly within South Island. We assessed 37 structures predicted successful would be due combination barrier parameters habitat. Additionally, we global knowledge, conducting systematic review meta‐analysis peer‐reviewed studies trout examine prevalence quantitative literature. found that drop height had strongest relationship with both field survey meta‐analysis, downstream pool depth was also negatively correlated data. Less than third (27%) identified by reported parameters, only parameter have exclusion. Only six (11%) described deliberate for ecological gain. Trout outcomes Zealand, densities higher above any other position; therefore, there evidence supporting conservation.

Language: Английский

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