Role of winter severity on juvenile Bighead Carp and Silver Carp growth and survival across latitudes

Coulter, David P.; Tristano, Elizabeth P.; Coulter, Alison A.; Seibert, Justin R.; Garvey, James E.

doi:10.1007/s10530-018-1781-5

Cited by 9 publications

(9 citation statements)

References 68 publications

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“…Juvenile Bigheaded Carp were captured near the mouth of the Skunk River in 2018 and hatch dates of these fish were nearly identical to those of larvae (M. Weber, unpublished data). Additionally, juvenile overwinter mortality appears minimal (Coulter et al 2018b); adult age structure indicates Silver Carp recruitment is relatively consistent without missing year-classes (Sullivan et al 2018); and few adult Bigheaded Carp are hatched above LD19 (Whitledge et al 2019). Therefore, the preponderance of evidence suggests the period between egg and larval phases represents an important recruitment bottleneck, differential mortality from the larval to juvenile stage is minimal, and Bigheaded Carp recruitment is likely determined early in life.…”

Section: Discussionmentioning

confidence: 99%

“…The period when Bigheaded Carp are considered recruited to the adult population in their invaded range is unknown, but likely occurs sometime between the egg and fall juvenile phase. Larvae grow quickly and juveniles reach large sizes by their first fall (Williamson and Garvey 2005), escaping predation risk and minimizing overwinter mortality due to starvation and depletion of energy reserves (Coulter et al 2018b). Juveniles are commonly captured in large numbers in the Illinois River (e.g., Collins et al 2017) but are rarely encountered in other areas of invasion.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Adult Biomass and Environmental Conditions on Bigheaded Carp Reproductive Output

Weber

Matthews

Pierce

2021

Journal of Fish and Wildlife Management

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Bighead Carp Hypothalmichthys nobilis and Silver Carp Hypothalmichthys moltrix (hereafter collectively referred to as Bigheaded Carp) have spread throughout the majority of the Mississippi River since the 1970s. The current northern invasion edge of Bigheaded Carp in the Upper Mississippi River (UMR) spans between Pools 14 and 20 because of limited passage at Lock and Dam (LD) 19. Mechanisms limiting adult Bigheaded Carp abundance above LD19 are unknown but may be due in part to lack of reproductive success influenced by adult abundance and environmental factors. Our objective was to investigate how relative adult biomass and river temperature and discharge affect maximum annual Bigheaded Carp larval production in the UMR using a Ricker stock-recruitment model. Adult Bigheaded Carp relative biomass (kg/h) was estimated annually with boat electrofishing and larvae were collected every 10 d between May and August 2014–2017 in Pools 14–20 in the UMR. Adult relative biomass ranged from 0.0 to 880.9 kg/h, whereas maximum annual larval densities ranged from 0.0 to 2,869.4 larvae/m3. After accounting for variability among pools and years, the most supported linear Ricker stock-recruitment model indicated the number of recruits per spawner decreased with increasing adult relative biomass and increased with mean discharge. Our results highlight the importance of adult biomass and river discharge conditions for reproduction of Bigheaded Carp along leading edges of invasion. Management strategies that aim to maintain low adult abundance where reproduction is not yet occurring could help limit population increases via reproduction, whereas reducing high adult biomass (e.g., commercial harvest, barriers) may result in greater Bigheaded Carp reproductive output in the UMR.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Adult Biomass and Environmental Conditions on Bigheaded Carp Reproductive Output

Weber

Matthews

Pierce

2021

Journal of Fish and Wildlife Management

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“…The warm year increased Bighead Carp growing days in less productive offshore waters, but both species experienced the greatest increase in annual growth in Green Bay-a comparatively shallower and more productive habitat than the rest of Lake Michigan. In Green Bay and other productive habitats, increased annual growth due to longer growing seasons could improve winter survivorship and fecundity (Degrandchamp et al 2007;Coulter et al 2018b), which is a Fig. 12 Vertical distribution of Bighead Carp Hypophthalmichthys nobilis growth rate potential (GRP; g g -1 d -1 ) at the mid-depth location (M45) near Muskegon, MI for different meteorological years with and without mussels dimension of establishment risk that we did not assess in this study.…”

Section: Meteorological Controls On Thermal Habitat and Structure Mitigate Mussel Impactsmentioning

confidence: 99%

“…In the offshore, a warmer climate would not raise habitat quality into the same tier as the nearshore, but an increased duration of suitable habitat would create more opportunities for the spread and establishment of BHC. These fishes are capable of long distance migrations (Coulter et al 2016) and can adjust to poor food conditions quickly-allowing them to fast for several weeks while minimizing weight loss (Sheng and Ma 2008;Coulter et al 2018b). The longer availability of suitable offshore habitat, which would lessen the energetic burden of broad-scale movements, increases the likelihood BHC could survive migrations between productive habitats, which themselves would also be enhanced by a longer growing season.…”

Section: Meteorological Controls On Thermal Habitat and Structure Mitigate Mussel Impactsmentioning

confidence: 99%

Modeling the interactive effects of nutrient loads, meteorology, and invasive mussels on suitable habitat for Bighead and Silver Carp in Lake Michigan

et al. 2020

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Anthropogenic stressors that affect ecological processes in the Laurentian Great Lakes can impact their susceptibility to bioinvasions. Bighead Hypophthalmichthys nobilis and Silver Carp H. molitrix, collectively 'bigheaded carps' (BHC), are planktivorous fishes threatening to invade Lake Michigan. While previous studies indicate the lake contains habitat suitable for BHC growth, there is a need to understand how anthropogenic-driven changes to the abiotic and biotic environment could alter its vulnerability to BHC. We applied a spatially explicit model of BHC growth rate potential (GRP; g g -1 d -1 ) to nine biophysical model scenarios to evaluate changes in habitat suitability in Lake Michigan. Scenarios differed in meteorology (cool, reference, warm), annual tributary phosphorus loads (0, 3300, and 5600 MTA), and the presence/absence of invasive dreissenid mussels. Mussel effects on BHC GRP relied on their contact with the surface mixed layer (SML), the depth of which was affected by meteorology. The warm year advanced the expansion of Bighead Carp habitat by increasing temperature-dependent foraging rates and lessening the time of competitive interaction with mussels due to earlier stratification separating Electronic supplementary material The online version of this article (

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“…Abiotic factors can also be important and are often associated with spatial variation in river fish populations. For non-native riverine fish species, connectivity among river reaches (e.g., Sakai et al, 2001), water temperature (e.g., Coulter, Tristano, et al, 2018;Kornis et al, 2013;Warnock & Rasmussen, 2013) and river discharge (e.g., Fausch et al, 2001;Wood & Budy, 2009) all play roles in determining the spatial variation of populations throughout an invasion and during critical life periods.…”

Section: Introductionmentioning

confidence: 99%

Spatial variation in invasive silver carp population ecology throughout the upper Mississippi River basin*

Sullivan

Weber

Pierce

et al. 2020

Ecology of Freshwater Fish

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Understanding spatial variation in non-native fish species population ecology is imperative, where environmental, biotic and invasion-related mechanisms contribute to spatial heterogeneity. Established populations of invasive silver carp Hypophthalmichthys molitrix are currently found throughout a large portion of the upper Mississippi River (UMR) basin. Despite their recent invasion and broad environmental tolerances, silver carp population ecology and linkages to environmental conditions in the UMR remain understudied. There were two objectives for this investigation: (a) to estimate correlations among population characteristics and the influence of latitude and the time since first detection, and (b) to model the influence of river discharge and temperature on growth early in life to age 3. We estimated spatial variability in silver carp population characteristics and dynamics from nine sites across the UMR and assessed if biotic, abiotic or invasion-related (time since first detection) variables influence spatial patterns. Silver carp body weight, size structure, annual mortality, and growth parameters varied among locations. Silver carp recruitment was less stable for populations with higher relative abundance estimates and where carp were first detected ≥20 years ago whereas maximum carp age decreased with increasing latitude. Although model selection indicated silver carp length at age 3 was associated with mean daily discharge (m3/s) coefficient of variation, mean May-June temperatures, and ordinal date of maximum discharge, parameter coefficients and effect sizes were small and not biologically meaningful. Our results suggest that silver carp populations are governed by intraspecific mechanisms, but time-dependent changes in populations may partially underpin heterogeneity across populations. Our study helped further disentangle silver carp population ecology in the UMR by understanding carp ecology as a function of their invasion.

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Role of winter severity on juvenile Bighead Carp and Silver Carp growth and survival across latitudes

Cited by 9 publications

References 68 publications

Effects of Adult Biomass and Environmental Conditions on Bigheaded Carp Reproductive Output

Effects of Adult Biomass and Environmental Conditions on Bigheaded Carp Reproductive Output

Modeling the interactive effects of nutrient loads, meteorology, and invasive mussels on suitable habitat for Bighead and Silver Carp in Lake Michigan

Spatial variation in invasive silver carp population ecology throughout the upper Mississippi River basin*

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