Freshwater Fish Invasions: A Comprehensive Review

Annual Review of Ecology Evolution and Systematics, Journal Year: 2022, Volume and Issue: 53(1), P. 427 - 456

Published: Sept. 3, 2022

Freshwater fish have been widely introduced worldwide, and freshwater ecosystems are among those most affected by biological invasions. Consequently, invasions one of the documented animal taxa, with much information available about invasive species, their characteristics, invaded regions, invasion pathways, impacts, management. While existing reviews address specific aspects invasions, there is still a gaping lack comprehensive assessments that simultaneously pivotal connected elements process. Here, we provide holistic review, together quantitative assessments, divided into four major parts: ( a) introduction b) characteristics nonnative species andinvaded explain successful processes, c) impacts mechanisms, d) We highlight data gaps biases in current databases basic understanding several In addition, recommendations for future studies.

Language: Английский

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Preventing and controlling nonnative species invasions to bend the curve of global freshwater biodiversity loss

Environmental Reviews, Journal Year: 2023, Volume and Issue: 31(2), P. 310 - 326

Published: Jan. 11, 2023

The Emergency Recovery Plan for freshwater biodiversity recognizes that addressing nonnative species is one of six principal actions needed to bend the curve in loss. This because introduction rates continue accelerate globally and where these develop invasive populations, they can have severe impacts on biodiversity. most effective management measure protect prevent introductions species. Should a be introduced, however, then its early detection implementation rapid reaction measures avoid it establishing dispersing. If are unsuccessful becomes invasive, control containment minimize further spread impact. Minimizing impact includes methods reduce invader abundance such as screening invaded sites strict biosecurity dispersing neighbouring basins. These benefitted from developments invasion risk assessment prioritize according their and, already ensure commensurate with assessed risk. successful still requires overcoming some challenges, including often being symptom degraded habitats rather than main driver ecological change, eradication nonspecies specific. Given multiple anthropogenic stressors freshwaters, must work other restoration strategies if deliver

Language: Английский

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Biological invasions are a population‐level rather than a species‐level phenomenon

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(5)

Published: May 1, 2024

Biological invasions pose a rapidly expanding threat to the persistence, functioning and service provisioning of ecosystems globally, socio-economic interests. The stages successful are driven by same mechanism that underlies adaptive changes across species in general-via natural selection on intraspecific variation traits influence survival reproductive performance (i.e., fitness). Surprisingly, however, rapid progress field invasion science has resulted predominance species-level approaches (such as deny lists), often irrespective theory, local adaptation other population-level processes govern invasions. To address these issues, we analyse non-native dynamics at population level employing database European freshwater macroinvertebrate time series, investigate spreading speed, abundance impact assessments among populations. Our findings reveal substantial variability speed trends within between biogeographic regions, indicating levels invasiveness differ markedly. Discrepancies inconsistencies risk screenings real data were also identified, highlighting inherent challenges accurately assessing effects through assessments. In recognition importance assessments, urge shift invasive management frameworks, which should account for different populations their environmental context. Adopting an adaptive, region-specific population-focused approach is imperative, considering diverse ecological contexts varying degrees susceptibility. Such could improve refine while promoting mechanistic understandings risks impacts, thereby enabling development more effective conservation strategies.

Language: Английский

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Contemporary perspectives on the ecological impacts of invasive freshwater fishes

Journal of Fish Biology, Journal Year: 2022, Volume and Issue: 103(4), P. 752 - 764

Published: Oct. 8, 2022

Introductions of non-native freshwater fish continue to increase globally, although only a small proportion these introductions will result in an invasion. These invasive populations can cause ecological impacts the receiving ecosystem through processes including increased competition and predation pressure, genetic introgression transmission pathogens. Definitions impact emphasize that shifts strength are insufficient for characterizing alone and, instead, must be associated with quantifiable decline biological and/or diversity lead measurable loss or change functioning. Assessments should thus consider multiple effects potentially occur from where, example, common carp Cyprinus carpio combination bottom-up top-down that, entirety, lake stable states decreased species richness abundances biotic communities. Such far-reaching also align contemporary definitions collapse, given they involve substantial persistent declines biodiversity functions cannot recovered unaided. Thus, while not all introduced fishes become invasive, those do develop impacts, where some on functioning might sufficiently harmful considered as contributing collapse.

Language: Английский

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Introduction of non‐native fish for aquaculture in China: A systematic review

Reviews in Aquaculture, Journal Year: 2022, Volume and Issue: 15(2), P. 676 - 703

Published: Oct. 22, 2022

Abstract Aquaculture, especially of non‐native species and translocated domestic species, is a greatly encouraged way relieving the conflicts between food economic demand resource depletion. We herein summarized introduction history fish for aquacultural use in China, including 105 introduced from abroad 61 domestically across river basins, which has brought great benefits but high ecological risks. Of these, one‐fourth have successfully established wild populations natural waters 15% invaded. presented specific examples seven aquaculture species/taxa three aquarium to explain their outcomes. The notable benefits, complex composition strain selection tilapias, carps sturgeons may together facilitate invasion, result diversity decline, genetic pollution, loss ecosystem service. specifically reviewed invasion cases lakes reservoirs found that western China made by major hydroprojects are hotspots this led disappearance endemic changes original faunal composition. escaped via changed biogeography, resulting assemblage uniqueness causing homogeneity. achieved significant progress completing Aichi Targets improving legal system strengthening conservational actions on controlling species. Further actions, risk assessment management expected healthy outlook industry China.

Language: Английский

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A protocol for screening potentially invasive non-native species using Weed Risk Assessment-type decision-support tools

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 832, P. 154966 - 154966

Published: March 31, 2022

There is increasing use worldwide of electronic decision-support tools to identify potentially invasive non-native species so as inform policy and management decisions aimed at preventing or mitigating the environmental socio-economic impacts biological invasions. This study reviews analytical approaches used calibrate scores generated by Weed Risk Assessment subsequent adaptations thereof provides a protocol for: (i) identification assessor(s) who will carry out screenings; (ii) definition risk assessment area; (iii) criteria for selection screening; (iv) priori categorisation into non-invasive necessary compute thresholds which distinguish between high-risk medium-risk species. approach represents an evidence-based statistically robust means with decision-makers stakeholders about expected serve general reference forthcoming screening applications Assessment-type toolkits.

Language: Английский

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Marine invasive alien species in Europe: 9 years after the IAS Regulation

Frontiers in Marine Science, Journal Year: 2023, Volume and Issue: 10

Published: Oct. 11, 2023

Biological invasions, resulting from human activities, exert substantial impacts on ecosystems worldwide. This review focuses marine invasive alien species (IAS) in Europe, examining the current state, proposing strategies to address problem, and offering recommendations for enhanced management. Effective management of biological invasions relies accessible, accurate data inform decision-making. Information systems such as European Alien Species Network (EASIN), Aquatic Non-Indigenous Cryptogenic (AquaNIS), World Register Introduced Marine (WriMS) provide comprehensive databases IAS, but their sustainability requires long-term maintenance, continuous updates, support. Most countries lack specific monitoring programs standardization improvement methods are needed. Port plays a vital role early detection new arrivals, recent advancements molecular techniques show promise effective IAS monitoring. Risk screening tools commonly employed rank taxa based invasiveness potential regions, variations protocols can yield inconsistent results. impact assessments highlight resource competition, novel habitat creation, predation primary mechanisms negative biodiversity, while creation habitats represents key mechanism positive impacts. Preventing introductions is critical, measures ballast water treatment implemented reduce likelihood introductions. However, understanding introduction pathways remains uncertain many IAS. Eradication control efforts have limited success, emphasizing need biosecurity measures. Climate change, especially ocean warming, intensify native ecosystems. In climate change hotspots, some tropical aliens may, however, compensate loss thermally sensitive natives with similar traits. Therefore, it imperative consider interactions between developing conservation strategies. Enhancing Europe entails i) securing adequate funding, ii) expanding list Union Concern adequately cover iii) learning successful practices, iv) sustaining information systems, v) improving warning innovative technologies, vi) enhancing prediction models, vii) conducting integrated mapping cumulative impacts, considering benefits ecosystem functioning services.

Language: Английский

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Environmental and anthropogenic drivers of invasive plant diversity and distribution in the Himalaya

Ecological Informatics, Journal Year: 2024, Volume and Issue: 81, P. 102586 - 102586

Published: April 3, 2024

Invasive alien species (IAS) are currently considered as one of the major drivers global environmental change. To manage IAS, it is crucial to identify different and associated anthropogenic that contribute invasion non-native regions. Although multiple have been identified at a scale, relative roles these known vary considerably regional scales. Here, we investigate role key in determining diversity distribution selected invasive plant Kashmir Himalaya. We generated an extensive dataset through field sampling across region supplemented with novel herbarium records. also extracted data on relevant (climatic, soil topographic) for study region. The random forest model was employed quantify contribution determine two common metrics (species richness abundance) plants. found water content followed by distance city, maximum air temperature, pH, temperature human population density exerted greatest influence species. Species abundance significantly affected slope, pH density. Overall, our findings help disentangling individual interactive invasions, wide-ranging implications management this Himalayan similar landscapes elsewhere.

Language: Английский

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Conceptual and ethical considerations in invasion science

BioScience, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Abstract Invasion science addresses interconnected ecological, economic, and social challenges posed by the introduction of nonnative species. Therefore, invasion scientists have to consider reconcile interdisciplinary needs while addressing potential implications their findings. Navigating diverse disciplines, including environmental sciences, ecology, economics, humanities, seek arrive at informed decisions on risk, impact, management. Individual biases, uncertainties, systemic pressures influence ability maintain objectivity resist that might otherwise distort findings or applications. In present commentary, we examine conceptual ethical dilemmas within field science, particularly reputational risks discipline perpetuating its own relevance framing invasions as insurmountable challenges. discussion, highlight how incentive structures, biased assessments framing, conflicts interest may compromise discipline's integrity. We also explore questions surrounding human responsibility animal welfare conundrums in management invasive

Language: Английский

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Refining management strategies in marine protected areas in oceanic islands: a non-indigenous species risk index for strategic prioritization

Biological Invasions, Journal Year: 2025, Volume and Issue: 27(3)

Published: Feb. 22, 2025

Language: Английский

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