Invasion success of a freshwater fish corresponds to low dissolved oxygen and diminished riparian integrity

Krabbenhoft, Corey A.; Kashian, Donna R.

doi:10.1007/s10530-022-02827-1

Cited by 5 publications

(3 citation statements)

References 74 publications

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“…1 – 3 ; Supplementary Table 1 , Supplementary Data 1 ). For regions with unobstructed landscape connectivity, it was necessary to focus on ballast water management and identify locations where riverbank stability and water quality were deteriorating, which may facilitate invasions 46 . Areas with large numbers of established alien species could generate high prevention pressures of existing invaders and might facilitate the establishment of new alien species according to the invasion-meltdown hypothesis 33 .…”

Section: Discussionmentioning

confidence: 99%

Risk of introduction and establishment of alien vertebrate species in transboundary neighboring areas

Zhang,

Wang,

Liu

2024

Nat Commun

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Cross-border neighboring areas could be particularly vulnerable to biological invasions due to short geographic distances and frequent interactions, although the invasion risk remains unevaluated worldwide. Here, based on global datasets of distributions of established alien vertebrates as well as vectors of introduction and establishment, we show that more than one-third of the world’s transboundary neighboring areas are facing high invasion risk of alien vertebrates, especially in Europe, North America, South Asia, and Southeast Asia. The most important predictors of high introduction and establishment risk are bilateral trade, habitat disturbance and the richness of established alien vertebrates. Interestingly, we found that border fences may have limited effects in reducing the risk, as only 7.9% of border fences spatially overlap with hotspots of biological invasion even in the Eurasia areas (13.7% overlap) where physical border barriers are mainly located. We therefore recommend the implementation of immediate and proactive prevention and control measures to cope with cross-border invasions in response to continued globalization.

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Section: Discussionmentioning

confidence: 99%

Risk of introduction and establishment of alien vertebrate species in transboundary neighboring areas

Zhang,

Wang,

Liu

2024

Nat Commun

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“…However, certain types of habitats and environmental conditions can reduce round goby abundance. In the Great Lakes, oxygen concentration and riparian habitat quality were linked to invasion success of the round goby in some tributaries (Kornis et al 2013, Krabbenhoft and Kashian 2022, McAllister et al 2022. The concentration of dissolved ions (often measured by water conductivity or specific conductance, which is conductivity standardized at 25 °C) can also predict the presence and abundance of the exotic round goby in the Great Lakes (Baldwin et al 2012) and in the St. Lawrence River (Astorg et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Environmental determinants of round goby invasion refuges at a river scale: implications for conservation of native biodiversity

Morissette,

Charette,

Windle

et al. 2024

Can. J. Fish. Aquat. Sci.

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Introductions of exotic invasive species are a global disturbance for natural habitats. The severity of invasions can greatly vary from local to global scales, as observed in invasion refuges, exhibiting lower-than-expected invasion intensity. In this study, we analyzed the effects of water conductivity and wetland presence on the density of the round goby (Neogobius melanostomus) in a large-scale study (> 1300 sites), spanning a 400 km stretch of the St. Lawrence River (Canada). Our results showed that round goby density was null in sites with water conductivity under 100 µS/cm and increased toward a probable biological optimum at 300 µS/cm. The presence of wetlands appeared to also decrease round goby density along the conductivity continuum. Similarly, fish community diversity was maximal outside of the round goby water conductivity optimum. Hence, low water conductivity (<100 µS/cm), in interaction with the presence of wetlands, can provide a refuge for native aquatic species, establishing a simple risk assessment tool for managers. Our results also highlighted the high value of wetland conservation for conservation of native species biodiversity.

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“…However, certain types of habitats and environmental conditions can reduce round goby abundance. In the Great Lakes, oxygen concentration and riparian habitat quality were linked to invasion success of the round goby in some tributaries (Kornis et al 2013, Krabbenhoft and Kashian 2022, McAllister et al 2022). The concentration of dissolved ions (often measured by water conductivity or specific conductance, which is conductivity standardized at 25 °C) can also predict the presence and abundance of the exotic round goby in the Great Lakes (Baldwin et al 2012) and in the St. Lawrence River (Astorg et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Environmental determinants of round goby invasion refuges at a river scale: implications for conservation of native biodiversity

Morissette

Charette

Windle

et al. 2022

Preprint

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Introductions of exotic invasive species are a global disturbance for natural habitats, native species and their related ecological services. The severity of invasions and impacts, however, can greatly vary from local to global scales. This variation can be observed in both invasion hotspots, exhibiting disproportionate invasion and impacts, or refugia, exhibiting lower than expected invasion and impacts. The latter are believed to be habitats where ecological, social or environmental conditions create deterrence of invaders. Dissolved ions and presence of wetlands have been suggested as environmental conditions that buffer the impacts of Ponto-Caspian invaders, notably the round goby (Neogobius melanostomus). In this study, we used a generalized additive model (GAM) to analyze the effects of local water conductivity and wetland presence on the density of the round goby in a large-scale study (> 1300 sites), spanning the major part of the non-tidal freshwater portion of the St. Lawrence River (Canada). Our results showed that, even in long-invaded regions, round goby density was null in sites with water conductivity under 100 uS/cm and increased toward a probable biological optimum of water conductivity ~300 uS/cm. Additionally, the presence of wetlands, even if they did not completely disrupt surpass the effect of conductivity, appeared to decrease the round goby densities along the conductivity continuum. Our study demonstrated that low water conductivity (<100 uS/cm), in interaction with the presence of wetlands can provide a refugium for native aquatic species, establishing a simple, yet robust, risk assessment tool for managers. Our results also highlighted the high value of wetland conservation and restoration as a promoter of biodiversity and an integrated management tool for conservation of native species.

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Invasion success of a freshwater fish corresponds to low dissolved oxygen and diminished riparian integrity

Cited by 5 publications

References 74 publications

Risk of introduction and establishment of alien vertebrate species in transboundary neighboring areas

Risk of introduction and establishment of alien vertebrate species in transboundary neighboring areas

Environmental determinants of round goby invasion refuges at a river scale: implications for conservation of native biodiversity

Environmental determinants of round goby invasion refuges at a river scale: implications for conservation of native biodiversity

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