Environmental factors associated with silver carp presence and relative abundance near an invasion front to inform removal efforts

Glubzinski, Michael A.; Coulter, David P.; Whitledge, Gregory W.

doi:10.1007/s10750-021-04612-y

Cited by 4 publications

(4 citation statements)

References 69 publications

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“…We note that unlike bighead, grass and silver carps, the age at maturity of black carp did not have a significant relationship with any of our air temperature variables (Appendix 4), despite the fact that Nico et al (2005) found a significant relationship with latitude. This could be because, unlike the other species of Asian carp, black carp tend to stay near the bottom of waterbodies (Cudmore & Mandrak, 2004; Glubzinski et al, 2021; Nico et al, 2015). Analysis using water temperature may have better results, given that air temperature may not be sufficiently correlated with benthic water temperatures (Honsey et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

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Predicting the age at maturity of Asian carp using air temperature

Brook

Cuddington

Koops

2023

Ecology of Freshwater Fish

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Asian carp (bighead carp, Hypophthalmichthys nobilis; grass carp, Ctenopharyngodon idella and silver carp, H. molitrix) are a group of invasive species that are predicted to cause ecological effects if they invade the Great Lakes basin. Although Asian carp age at maturity is known to be an important factor in the risk of establishing a population, there is relatively little maturity data for North America. We found that air temperature can be used to predict the age at maturity of Asian carp. Nonlinear regressions using mean annual air temperature and annual degree days to predict age at maturity explain 60% and 62% of the variation respectively. These models predict that maturation is possible in locations that were previously excluded from Asian carp spawning range based on data from the Amur River. As expected, we find faster maturation in more southern areas of North America, although there are relatively large errors predicting age at maturity in the Mississippi River population. We conclude that due to the effect of faster maturation on population growth rates, southern Great Lakes locations (e.g. Lake Erie) may be at greater risk of faster population establishment.

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Section: Discussionmentioning

confidence: 99%

“…Moreover, some of the species considered prefer shallow habitats. Grass carp tend to be found in nearshore areas (Cudmore & Mandrak, 2004), and silver carp are found at highest abundance in shallow water (Glubzinski et al, 2021), which are habitats that are likely to have temperatures strongly correlated to air temperature.…”

Section: Introductionmentioning

confidence: 99%

Predicting the age at maturity of Asian carp using air temperature

Brook

Cuddington

Koops

2023

Ecology of Freshwater Fish

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“…Additionally, observations from the current invasion range (e.g. Glubzinski et al, 2021; MacNamara et al, 2018) should be used with caution since environmental conditions associated with invasion risk can interact with one another and with demographic attributes in unexpected or unknown ways (Coulter et al, 2013) to influence habitat suitability. This is particularly important for decisions regarding the location and intensity of early detection efforts, as sites in close proximity may have large differences in invasion risk and require differing types of surveillance (Hauser & McCarthy, 2009).…”

Section: Discussionmentioning

confidence: 99%

Using individual‐based models to develop invasive species risk assessments by predicting species habitat suitability

Coulter

Feiner

Coulter

et al. 2022

Journal of Applied Ecology

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Preventing invasive species establishment is a global conservation priority, yet limited management resources oftentimes restrict sites to target for prevention or monitoring. Risk assessments based on habitat suitability can identify sites most vulnerable to invasion that should be prioritized for preventative actions. Since habitat suitability is the result of interactions between environmental and organismal attributes, analyses should incorporate individual variability in demographics expected in an invasive population. Individual‐based models (IBMs) can predict habitat suitability by accounting for interactions between environmental conditions and individual‐level variability. We developed an IBM to predict suitability of rivers in the northern United States to the invasive fishes silver carp (Hypophthalmichthys molitrix) and bighead carp (H. nobilis) and explored the projected effects of climate change on habitat suitability. All rivers supported adult survival, although complete survival of all adult demographics and positive growth only occurred in approximately 45% (17 of 38) of rivers for silver carp and 26% (10 of 38) of rivers for bighead carp. Only the largest individuals at the time of introduction survived in rivers where adult mortality occurred. Most rivers were unsuitable for young‐of‐year (89% and 92% of rivers for silver carp and bighead carp respectively). Climate change simulations had relatively little effect on adult habitat suitability but resulted in up to four times the number of rivers being suitable for young‐of‐year by the late‐21st century and greatly extended the viable spawning season by up to an additional 65 days for silver carp and 77 days for bighead carp. Synthesis and applications. Our approach of using individual‐based models as a risk assessment tool informs proactive conservation planning by identifying sites for invasive species early detection monitoring, promoting the development of contingency response plans and allowing for proactive prevention efforts. Model predictions also provide specific management guidance regarding the size and life stages to target for monitoring efforts, which capture gears to use, and the most effective time to sample for early detection monitoring.

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“…We cannot confirm grass carp that made large-scale upstream movements spawned or were intent on spawning, but seasonal upstream migrations to areas suitable for spawning has been observed in grass carp [39] and other invasive carp species [40]. As such, we assumed that upstream movements during the spring/summer seasons were associated with spawning PLOS ONE activity in our analyses.…”

Section: Movement Datamentioning

confidence: 93%

Movement ecology of diploid and triploid grass carp in a large reservoir and upstream tributaries

Hessler

Chapman²,

Paukert³

et al. 2023

PLoS ONE

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Grass carp Ctenopharyngodon idella, is an herbivorous fish originally brought to North America from Asia in 1963 to control nuisance aquatic vegetation. Since their arrival, detrimental alterations to aquatic ecosystems have sometimes occurred in waterways where they were initially stocked and into which they have escaped. The movements of grass carp from lentic systems into tributaries required for spawning is poorly understood, and understanding environmental conditions associated with upstream migrations may aid in management of the species. We stocked 43 fertile diploid and 43 sterile triploid grass carp implanted with acoustic transmitters into Truman Reservoir, Missouri, USA between January 2017 and October 2018 to characterize movements during spring and summer when spawning conditions occur. Twenty fish (11 diploid/9 triploid) exhibited upstream migration behavior in the Osage River, a major tributary, in 2018 and 2019. Migration primarily occurred in April and May, during high discharge events associated with increasing river stage when water temperatures were between 15 and 28°C. Observed migrations ranged from 3.0–108 river km in length, and six individuals were observed making multiple upstream migrations in one season. Eleven fish initiated upstream migrations while in the lentic main body of the reservoir. These findings provide some evidence for upstream migrations by diploid and triploid grass carp as well both lake and river residents. Evidence of similar upstream migration behavior by both diploid and triploid grass carp suggests that triploids may be suitable surrogates for diploids for study of movement ecology. Removal efforts in tributaries targeting periods of increasing river stage during spring may provide the best opportunity of encountering large concentrations of grass carp.

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Environmental factors associated with silver carp presence and relative abundance near an invasion front to inform removal efforts

Cited by 4 publications

References 69 publications

Predicting the age at maturity of Asian carp using air temperature

Predicting the age at maturity of Asian carp using air temperature

Using individual‐based models to develop invasive species risk assessments by predicting species habitat suitability

Movement ecology of diploid and triploid grass carp in a large reservoir and upstream tributaries

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