Comparative studies on the feeding selectivity of silver carp <i>Hypophthalmichthys molitrix</i> and bighead carp <i>Aristichthys nobilis</i>

Dong, Shuanglin; Deshang, Li

doi:10.1111/j.1095-8649.1994.tb01238.x

Cited by 56 publications

(27 citation statements)

References 6 publications

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“…Furthermore, the effects of bighead carp were consistently greater than the native planktivore, in terms of changes to zooplankton densities, larval bluegill growth rates, and by likely delaying ontogenetic habitat shifts. Both native and invasive planktivores reduced zooplankton densities in a manner consistent with reports by others (Collins, Detmer, Nelson, Sass, & Wahl, 2018;Cooke, Hill, & Meyer, 2009;Dong & Li, 1994;Sass et al, 2014;Xie & Chen, 2001). However, the reduced growth rates experienced by larval bluegill did not consistently lead to reduced survival within mesocosms or reduced relative abundance within ponds, suggesting a decoupling of the response of individuals from that of the population.…”

Section: Discussionsupporting

confidence: 90%

Competition during early ontogeny: Effects of native and invasive planktivores on the growth, survival, and habitat use of bluegill

et al. 2019

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Early life stages of fishes are sensitive to ecological and environmental disturbances and experience very high mortality rates. During early ontogeny, the growth and survival of larval fish often depends on food availability. Because habitat and diet shifts are strongly tied to individual body size, factors that influence the growth rates of individuals (e.g. resource limitation, competition) also affect other aspects of ontogeny including the timing of habitat or diet shifts. In the context of biological invasions, non‐native species can potentially disrupt the interaction of larval fish with their food via competition for shared prey, reducing growth and survival during a vulnerable period of an organism's life history. We hypothesised that invasive planktivores negatively affect native species through the vulnerable larval life stage via competition for zooplankton resources. To test this hypothesis, we conducted a series of experiments to assess and contrast the effects of invasive (bighead carp, Hypophthalmichthys nobilis) and native (golden shiners, Notemigonus crysoleucas) planktivores on zooplankton densities, and their effects on the growth, survival, abundance, and habitat use of larval bluegill (Lepomis macrochirus). Overall, the effects of the invasive planktivore were consistently greater than the native planktivore in terms of reduced prey densities, reduced bluegill growth rates, and delays to the timing of ontogenetic habitat shifts. Growth rates of bluegill larvae were reduced by 58–87% in the presence of bighead carp and 37% in the presence of golden shiners (relative to controls), but such reductions did not consistently lead to reduced survival (in mesocosm experiment) or relative abundance (in pond experiment). However, we estimated that bighead carp and golden shiners delayed ontogenetic habitat shifts in bluegill by 9–24 and 1–3 days, respectively. Although we did not detect an effect of planktivores on the numbers of larval bluegill, our findings suggest that bighead carp may still affect bluegill ontogeny and freshwater food webs by disrupting the timing of ontogenetic habitat shifts. By affecting the coupling of habitats via organism movements during early ontogeny, bighead carp may indirectly disrupt predator–prey interactions of native taxa.

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Section: Discussionsupporting

confidence: 90%

Competition during early ontogeny: Effects of native and invasive planktivores on the growth, survival, and habitat use of bluegill

et al. 2019

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“…The tendency suggested that the feeding intensity of paddlefish decreased compared to bighead carp when food resources (cladocera and copepoda) became scarce in this study. A possible explanation is that bighead carp could switch to trap smaller food items during periods when large zooplankton densities were low (Cremer and Smitherman, ; Jennings, ; Opuszynski et al., ; Takamura et al., ; Dong and Li, ; Lieberman, ).…”

Section: Discussionmentioning

confidence: 99%

Food preference of paddlefish, Polyodon spathula (Walbaum, 1792), in polyculture with bighead carp Aristichthys nobilis (Richardson, 1845) in non-fed ponds

Zhu

Yang

2014

J. Appl. Ichthyol.

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The food preferences of paddlefish (Polyodon spathula) in polyculture with bighead carp (Aristichthys nobilis) are unknown. Three consecutive analyses of gastrointestinal contents of paddlefish and bighead carp were conducted at 3d, 11d and 19d after introduction into the non-fed ponds. The objectives of this study were to test for competitive interactions between bighead carp and paddlefish, and to document their preferred prey when the two species have a limited food resource. The results showed that paddlefish and bighead carp are basically competitive in their diets. When they were cultured in one pond at the same density, paddlefish fed more quickly and efficiently, depleting the food resources for bighead carp; however, bighead carp were able to switch and trap small food items with the decrease in available food resources. Moreover, larger zooplankton abundance declined in ponds after fish were introduced.

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“…The silver and bighead carps were intentionally introduced into the southern USA and the Canadian province of Alberta to control eutrophication in lakes and ponds Cudmore 1999a, 1999b;Mandrak and Cudmore 2004). These species feed on phytoplankton and small zooplankton and may compete with juveniles of many native fishes (Dong and Li 1994;Fuller et al 1999). Black carp are molluscivorous and pose a threat to endangered molluscs (Ferber 2001); they may also compete with native molluscivorous fishes.…”

Section: Introductionmentioning

confidence: 99%

Comparative distribution and invasion risk of snakehead (Channidae) and Asian carp (Cyprinidae) species in North America

Herborg¹,

Mandrak²,

Cudmore³

et al. 2007

Can. J. Fish. Aquat. Sci.

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As nonindigenous species are a major threat to global biodiversity, cost-effective management requires identification of areas at high risk of establishment. Here we predict suitable environments of 14 high-profile species of nonindigenous snakehead (Channidae) and Asian carp (Cyprinidae) species in North America based upon ecological niche modelling and compare the driving environmental variables for the two fish groups. Snakeheads distributions were correlated with thermal factors, whereas those of Asian carps were related mainly to precipitation. Predicted suitable ranges for these nonindigenous species can be divided into three main areas: Mexico and the southern United States (five species); Mexico and the United States up to ~35 °N (three species); and most of Mexico, continuous United States, and southern Canada (six species). For the province of Ontario, we combined the number and location of aquarium stores and live fish markets with predicted areas of suitable environments to identify areas at risk of introduction and establishment. We identified several watersheds draining into northwestern Lake Ontario as having the highest risk, highlighting the increased predictive value of this approach.

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Comparative studies on the feeding selectivity of silver carp Hypophthalmichthys molitrix and bighead carp Aristichthys nobilis

Cited by 56 publications

References 6 publications

Competition during early ontogeny: Effects of native and invasive planktivores on the growth, survival, and habitat use of bluegill

Competition during early ontogeny: Effects of native and invasive planktivores on the growth, survival, and habitat use of bluegill

Food preference of paddlefish, Polyodon spathula (Walbaum, 1792), in polyculture with bighead carp Aristichthys nobilis (Richardson, 1845) in non-fed ponds

Comparative distribution and invasion risk of snakehead (Channidae) and Asian carp (Cyprinidae) species in North America

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