| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
2531
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Observational
|
Field
|
Establishment and population growth of Bighead and Silver Carps is associated with changes in zooplankton community composition and biomass across a pre- versus post-establishment comparison and a gradient of abundance in the the Illinois River.
|
Illinois River, Illinois
|
27200
|
|
2557
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Anecdotal
|
N/A
|
A computer model suggest that Bighead and Silver Carp would affect Lake Erie’s food web by competing with other planktivorous fishes and by providing additional prey for piscivores.
|
|
30222
|
|
2570
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Anecdotal
|
N/A
|
Bighead and Silver Carp could cause shifts in food webs due to predation on certain sizes of plankton.
|
|
16474
|
|
2574
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Anecdotal
|
N/A
|
Bigheaded carps can alter the benthic macroinvertbrate community.
|
|
16474
|
|
2639
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Experimental
|
Laboratory
|
Growth and survival of Bluegill was enhanced in the presence of Bighead Carp in pond experiments. Avoidance of Bighead Carp increased encounter frequency with Bluegill and predatory macroinvertebrates, with increased consumption of both cladocerans and macroinvertebrates by Bluegill.
|
|
33753
|
|
2640
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Observational
|
Field
|
Viable cells of several different types of phyoplankton were found in the hindgut of Bighead and Silver Carp, suggesting that these fish can alter the phytoplankton species composition by increasing the abundance of phytoplankton species able to resist predation and digestion.
|
Lake Balaton, Hungary
|
30221
|
|
2653
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Experimental
|
Laboratory
|
Predation by Bighead Carp altered zooplankton species composition, but the change in species abundance may be dependent on zooplankton density.
|
|
26105
|
|
4071
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Experimental
|
Field
|
Bighead Carp reduced size structure (removing larger individuals and selecting for reduced body size), standing crop biomass, and daily production of zooplankton (Diaphanosoma, Daphnia, and calanoid copepods) in experimental ponds. Highest reductions were observed in the largest prey taxa.
|
|
35726
|
|
4076
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Experimental
|
Laboratory
|
Juvenile Bighead Carp had mixed effects on rotifer abundance in mesocosm experiments, with some taxa showing reduced abundance, others showing increased abundance (likely through reduced predation by removal of larger zooplankton), and some showing no change in abundance.
|
|
35728
|
|
4082
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Experimental
|
Field
|
Bighead and Silver Carps stocked in reservoirs reduced zooplankton and phytoplankton biomass.
|
Israel
|
23525
|
|
5804
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Experimental
|
Field
|
The size of phytoplankton filtered by bighead carp was 17-3000 micrometers.
|
Montgomery, Alabama
|
15090
|
|
5895
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Observational
|
Field
|
According to diet analysis of adult blue catfish, adult bighead carp (Hypoyphthalmichthys nobilis) were consumed. Bighead carp occurred in 3.8% of blue catfish stomachs and constituted 1.4% of prey items and 2.7% of dry weight of catfish diet.
|
Alton, Illinois, USA
|
40648
|
|
5914
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Observational
|
Field
|
High-throughput sequencing analysis of gut contents indicated that bighead carp (Hypophthalmichthys nobilis) will rely on zooplankton in a mesotrophic lake and phytoplankton in a eutrophic lake. In a mesotrophic lake, the most abundant plankton classes in the gut contents of bighead carp was Diaptomidae and Chroococcales. In a eutrophic lake, the most abundant plankton classes in the gut contents of bighead carp was Chroococcales. As algae abundance increased in the water column, bighead carp consumed more phytoplankton.
|
Yangtze Delta, China
|
40671
|
|
5943
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Experimental
|
Laboratory
|
In response-surface experiments, bighead carp (Hypophthalmichthys nobilis) likely altered nutrient flow of organic material. As a result, Chironomidae larvae increased in bighead carp treatment.
|
Kinmundy, Illinois, USA
|
40660
|
|
5977
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Experimental
|
Field
|
In a manipulative pond experiment, the bighead carp (Hypopthalmichthys nobilis) treatment resulted in reduced filamentous algae and zooplankton biomass through consumption.
|
Kinmundy, Illinois, USA
|
40598
|
|
5979
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Experimental
|
Field
|
In a manipulative pond experiment, the bighead carp (Hypopthalmichthys nobilis) reduced zooplankton biomass and golden shiner production. This resulted in a trophic cascade that increased phytoplankton production.
|
Kinmundy, Illinois, USA
|
40598
|
|
5980
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Experimental
|
Field
|
In a manipulative pond experiment, egestion from bighead carp (Hypopthalmichthys nobilis) increased the Chironomidae midge larvae biomass. Chironomidae midge larvae also emerged sooner with bighead carp.
|
Kinmundy, Illinois, USA
|
40598
|
|
5981
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Experimental
|
Field
|
Bighead carp (Hypophthalmichthys nobilis) in manipulative pond experiments influenced the biomass of phytoplankton, zooplankton, and aquatic insect larvae, which indicated bighead carp can influence organic matter flow across trophic levels and ecological boundaries.
|
Kinmundy, Illinois, USA
|
40598
|
|
5993
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Experimental
|
Laboratory
|
In mesocosm and pond experiments, zooplankton abundance was lowest when bighead carp (Hypophthalmichthys nobilis were present.
|
Kinmundy, Illinois, USA
|
40207
|
|
6025
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Observational
|
Field
|
The diet of bighead carp (Hypophthalmichthys nobilis collected from the Illinois & Mississippi Rivers mainly consisted of plankton, including Keratella spp., Bosminidae, Chydoridae, cyclopoid copepods, and ostracods.
|
Mississippi & Illinois River, USA
|
18463
|
|
6045
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Experimental
|
Field
|
In pond experiments, bighead carp (Hypophthalmichthys nobilis) consumed large Cladocera and Copepoda species and Tendipedidae larvae.
|
Zabieniec, Poland
|
15351
|
|
6347
|
Hypophthalmichthys nobilis
|
Predation/Herbivory
|
Observational
|
Field
|
In Lake Balaton, introduced bighead carp (Hypophthalmichthys nobilis) mainly consumed zooplankton rather than phytoplankton.
|
Lake Balaton, Hungary
|
40086
|