Role and impact of non‐native species on inland fisheries

Gozlan, Rodolphe E.

doi:10.1002/9781118394380.ch53

Cited by 5 publications

(9 citation statements)

References 57 publications

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“…In cases where invasive alien fish populations may have a positive value, understanding the trade-offs and designing socially optimal management are also hampered by the lack of cost data. Examples of such positive values include invasive alien fishes with commercial benefits (Gollasch and Leppäkoski, 1999), aesthetic and/or cultural values associated with recreational uses (Downing et al, 2013;Schlaepfer et al, 2011;Katsanevakis et al, 2014;Gozlan, 2015Gozlan, , 2016, or other perceived ecosystem benefits (Gozlan, 2008;Pejchar and Mooney, 2009;Britton and Orsi, 2012).…”

Section: Introductionmentioning

confidence: 99%

Knowledge gaps in economic costs of invasive alien fish worldwide

Haubrock

Bernery

Cuthbert

et al. 2022

Science of The Total Environment

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Section: Introductionmentioning

confidence: 99%

Knowledge gaps in economic costs of invasive alien fish worldwide

Haubrock

Bernery

Cuthbert

et al. 2022

Science of The Total Environment

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“…In those cases where invasive sh populations may hold a positive value, understanding trade-offs and designing socially optimal management is also impeded by the lack of cost data. Examples of these positive values include invasive shes with commercial value (Gollasch & Leppäkoski, 1999), aesthetic and/or cultural values associated to recreational uses (Downing et al, 2013, Schlaepfer et al, 2011, Gozlan 2015, 2016, or other perceived ecosystem bene ts (Pejchar & Mooney, 2009).…”

Section: Introductionmentioning

confidence: 99%

What is the recorded economic cost of alien invasive fishes worldwide?

Haubrock

Bernery

Cuthbert

et al. 2021

Preprint

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Invasive alien fishes have caused pernicious ecological impacts on aquatic ecosystems. However, there has not been a global appraisal of associated economic impacts. Here, we compiled reported economic impacts of invasive alien fishes using the most comprehensive global database of invasion costs (InvaCost). We analyze how fish invasion costs are distributed geographically and temporally, as well as which socioeconomic sectors are most impacted. Fish invasions have caused the economic loss of at least US$32.8 billion globally (2017 value), from only 26 reported species (of 128 known invasive alien fish species). North America had the highest costs (> 99%), followed by Europe and Asia, with no costs reported in Africa, Oceania nor South America. Very few costs from invasive fish in the marine realm were reported (0.1%). Most costs are related to resource damages and losses (97%), with relatively little spent on management; mainly impacting the fisheries sector (93%). However, when only considering empirically observed costs (without predictions), most costs were incurred by authorities and stakeholders through management, indicating that damage costs from invasive fishes are often extrapolated and/or difficult to quantify. Fish invasion costs increase markedly over time, from US$0.57 billion/year in the 1980s to US$1 billion/year in the 2000s. Fish invasions have been relatively well studied; however, economic costs have been lower than expected based on overall numbers of alien species. Accordingly, although costs are increasing, improved reporting is required to better understand how fish invasion costs are distributed across time, space and economic sectors.

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“…The rate at which alien freshwater species have been introduced in ECA has doubled in the span of 40 years, with the principal motives being aquaculture (39%) and improvement of wild stocks (17%; Gozlan 2008Gozlan , 2015. The most sought-after freshwater species have already been introduced in ECA and have contributed to the phenomenon of biotic homogenisation (Gozlan 2016).…”

Section: Overview Of Inland Watersmentioning

confidence: 99%

Status, trends, and future dynamics of freshwater ecosystems in Europe and Central Asia

et al. 2019

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This review is part of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) report on Europe and Central Asia (ECA) and provides a critical assessment of issues facing decision-makers, including freshwater biodiversity and ecosystem trends as well as drivers of change. Freshwater systems are well established as the most threatened ecosystem type in the ECA region, with the quantity and quality of habitats and abundance of many species rapidly declining. Only about half (53%) of the EU's rivers and lakes achieved good ecological status in 2015 (as defined by the Water Framework Directive in terms of the quality of the biological community), and many lakes, ponds, and streams are disappearing as a consequence of agricultural intensification and ineffective irrigation and urbanisation, combined with climate change. The situation regarding freshwater biodiversity remains highly critical in ECA as many species remain threatened with extinction, including >50% of known species for some groups (e.g., molluscs, amphibians). Drivers of ECA freshwater taxa include the destruction or modification of their habitat, including water abstraction, which affects ∼89% of all amphibian threatened species and ∼26% of threatened freshwater invertebrate species. Of particular concern is the lack of data for freshwater invertebrates. Current status is available for only a minority of species, and the impact of alien invasive species is often unknown, especially in Central Asia. Based on current freshwater biodiversity trends, it is highly unlikely that ECA will achieve either the respective Aichi biodiversity targets by 2020 (i.e., targets, 2-4,6-12,14) or Target 1 of the Biodiversity Strategy.

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Role and impact of non‐native species on inland fisheries

Cited by 5 publications

References 57 publications

Knowledge gaps in economic costs of invasive alien fish worldwide

Knowledge gaps in economic costs of invasive alien fish worldwide

What is the recorded economic cost of alien invasive fishes worldwide?

Status, trends, and future dynamics of freshwater ecosystems in Europe and Central Asia

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