Multistate models of bigheaded carps in the Illinois River reveal spatial dynamics of invasive species

Coulter, Alison A.; Brey, Marybeth K.; Lubejko, Matthew; Kallis, Jahn L.; Coulter, David P.; Glover, David C.; Whitledge, Gregory W.; Garvey, James E.

doi:10.1007/s10530-018-1772-6

Cited by 40 publications

(116 citation statements)

References 59 publications

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Section: Discussionmentioning

confidence: 99%

“…Therefore, future work could assess maternal lineage of hybrid individuals, in addition to genomic SNPs, to obtain a better idea of relative dispersal risks from different hybrids. Additionally, future work could also assess parental species and hybrid dispersal in other river systems because differences in dam structure (Coulter, Brey, et al, 2018;Lubejko et al, 2017), distances between dams, and fish abundance at the invasion front may all interact to affect movement and observed dispersal. mixture of two species, early generation hybrids may also respond differently to environmental cues (Johnson, Smith, & Carline, 1988;Taylor & Mahon, 1977) contributing to the lack of significant environmental predictors identified.…”

Section: Discussionmentioning

confidence: 99%

“…Individuals were collected from Alton, La Grange, and Peoria pools in 2014 (November) and only from Peoria Pool in 2015 (March–May, November; Table ; Lubejko et al, ). Individuals were collected using boat electrofishing and via contracted commercial fishermen using gill nets (Coulter, Brey, et al, ; Lubejko et al, ).…”

Section: Methodsmentioning

confidence: 99%

“…Individuals were collected from Alton, La Grange, and Peoria pools in 2014 (November) and only from Peoria Pool in 2015 (March-May, November; Table 1; Lubejko et al, 2017). Individuals were collected using boat electrofishing and via contracted commercial fishermen using gill nets (Coulter, Brey, et al, 2018;Lubejko et al, 2017). Surgical procedures followed those described in Lubejko et al (2017) and Coulter, Brey, et al (2018) (additional details in Supplementary Material).…”

Section: Telemetrymentioning

confidence: 99%

“…Individuals were collected using boat electrofishing and via contracted commercial fishermen using gill nets (Coulter, Brey, et al, 2018;Lubejko et al, 2017). Surgical procedures followed those described in Lubejko et al (2017) and Coulter, Brey, et al (2018) (additional details in Supplementary Material). Movements of tagged individuals were monitored with an array of stationary receivers (model VR2W or model VR2tx; Vemco) located every 25-30 rkm including within the lock chamber of each lock and dam (list of receiver locations available in Coulter, Brey, et al, 2018).…”

Section: Telemetrymentioning

confidence: 99%

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Early generation hybrids may drive range expansion of two invasive fishes

Coulter

Brey

Lamer³

et al. 2019

Freshwater Biology

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Introgressive hybridisation between two invasive species has the potential to contribute to their invasion success and provide genetic resiliency to rapidly adapt to new environments. Additionally, differences in the behaviour of hybrids may lead to deleterious ecosystem effects that compound any negative impacts of the invading parental species. Invasive silver carp (Hypophthalmichthys molitrix) and bighead carp (Hypophthalmichthys nobilis) provide an opportunity to evaluate how hybridisation may influence the behaviour, dispersal, and spread of an invasive species introgressive complex. In order to investigate the role hybrids may have in the invasion ecology of bigheaded carps, we examined the distribution, movements, and environmental cues for movement of two invasive fishes and their hybrids in the Illinois River (U.S.A.). Early generation hybrids (e.g. F1,F2, and first‐generation backcross individuals) composed a greater proportion of the population at the invasion front where abundances of bigheaded carp were low. A greater proportion of early hybrids passed through dams upstream towards the invasion front than did other hybrids and parental species. The movements and environmental cues for movement of late‐generation backcrosses (more genetically similar to parental genotype) were not different from the parental species with which they shared the most alleles. Although the direction of the relationship between movement and environment was sometimes different for the parental species and associated advanced generation hybrids, these results indicate that management for parental species will also affect most hybrids. Although early generation hybrids are rare, our results indicate they may disperse towards low‐density population zones (i.e. invasion fronts) or are produced at greater frequency in low‐density areas. These rare hybrids have the potential to produce a variety of unique genetic combinations that could result in more rapid adaptation of a non‐native population to their invaded range potentially facilitating the establishment of invasive species.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Telemetrymentioning

confidence: 99%

Section: Telemetrymentioning

confidence: 99%

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Early generation hybrids may drive range expansion of two invasive fishes

Coulter

Brey

Lamer³

et al. 2019

Freshwater Biology

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Analysis of per capita contributions from a spatial model provides strategies for controlling spread of invasive carp

et al. 2022

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Active eDNA Is More Cost‐Effective Than Fyke Nets or Passive eDNA Collection When Monitoring the Invasion of an Alien Freshwater Fish

Morris,

Beesley,

Stevens

et al. 2024

Environmental DNA

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Monitoring alien species is critical to their management. However, early detection of invading alien freshwater fish can be challenging due to the difficulty of observing fish in low abundance. Environmental DNA (eDNA) has emerged as a new and potentially more sensitive method for sampling invasive species as compared to conventional methods, but the comparative financial cost is not often assessed. Adoption of eDNA by managers requires studies that showcase its cost‐effectiveness relative to conventional approaches. Here we use eDNA to assist in the management of an aggressive alien fish, the pearl cichlid (Geophagus brasiliensis), that is invading an urban river in south‐western Australia. We applied an occupancy model to survey data collected 6 years apart (2015, 2021) to assess how the species' distribution had changed and to evaluate whether an instream barrier had the potential to limit upstream invasion. To understand the effectiveness of eDNA, we used our model to quantify the relative efficiency (capture probability) of two eDNA sampling methods (active eDNA and passive eDNA) and fyke netting, as well as the number of replicate samples required per site to deliver >95% detection. We coupled the number of replicates needed with the cost per replicate to determine the cost‐efficiency of each method. We found that G. brasiliensis abundance was higher in downstream reaches in both survey years, and there was no evidence that its distribution had changed through time. However, G. brasiliensis was present above the instream barrier. Active eDNA sampling was considerably better at detecting G. brasiliensis than the other methods, making it the most cost‐effective method. Fyke nets came in a close second, and passive eDNA was a very distant third. Our results directly inform management in the study river and broadly highlight the cost‐effectiveness of active eDNA as a freshwater biosecurity tool.

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Multistate models of bigheaded carps in the Illinois River reveal spatial dynamics of invasive species

Cited by 40 publications

References 59 publications

Early generation hybrids may drive range expansion of two invasive fishes

Early generation hybrids may drive range expansion of two invasive fishes

Analysis of per capita contributions from a spatial model provides strategies for controlling spread of invasive carp

Active eDNA Is More Cost‐Effective Than Fyke Nets or Passive eDNA Collection When Monitoring the Invasion of an Alien Freshwater Fish

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