57 results for Dreissena polymorpha (zebra mussel)

Page:123
Impact ID Scientific Name Impact Type Study Type Study Location Impact Description Geographic Location Reference
2691 Dreissena polymorpha Predation/Herbivory Anecdotal Field The tremendous filtering activity exerted by high density populations of D. polymorpha may well have effects on the ecosystem which extend beyond direct competitive interactions with other members of the benthos. Specifically it may divert energy flow from the planktonic to the benthic food webs. The shift in resources from planktonic to benthic food webs might have major consequences on community structure. 9052
2700 Dreissena polymorpha Predation/Herbivory Observational Field Shifts in depth distributions of alewives, rainbow smelt, and age-2 lake trout in southern Lake Ontario may be due to the establishment of non-native dreissenid mussels. This may in turn affect fish predator/prey relationships. Lake Ontario 13032
2702 Dreissena polymorpha Predation/Herbivory Experimental Laboratory Dreissena populations in western Lake Erie possess a tremendous potential to filter the water column and redirect energy from pelagic to benthic food webs. Lake Erie 13799
2716 Dreissena polymorpha Predation/Herbivory Observational Field Both macrozoobenthos at deep-water sites and sphaeriid clams declined after the arrival of zebra mussels in the river. Hudson River, New York 14802
2718 Dreissena polymorpha Predation/Herbivory Anecdotal N/A Dreissena is used by numerous predators such as waterfowl, fish, and crayfish. 16453
2737 Dreissena polymorpha Predation/Herbivory Observational Field The presence of Dreissena mussel species caused a decrease in abundance of open-water fish species but caused an increase in abundance of littoral fish species. Growth rates followed a similar pattern. Hudson River, New York 19111
2781 Dreissena polymorpha Predation/Herbivory Observational Field Veligers have no severe negative impacts on the plankton community in the estuarine to freshwater transition zone of the St. Lawrence River. St. Lawrence River 20363
2791 Dreissena polymorpha Predation/Herbivory Observational Field Mean total length of adult freshwater drum Aplodinotus grunniens has decreased since the zebra mussel Dreissena polymorphainvaded Lake Erie where mussels comprised more than two-thirds of stomach samples in these fish. Freshwater drum may not benefit having zebra mussels as a staple of their diet. Lake Erie 20548
2793 Dreissena polymorpha Predation/Herbivory Experimental Laboratory Zebra mussels prey on flagellated protozoans which are the predators of bacteria therefore causing an increase in bacteria. Hudson River, New York 20531
2881 Dreissena polymorpha Predation/Herbivory Experimental Laboratory The presence of zebra mussels, Dreissena polymorpha, positively affected the biomass and density of some benthic invertebrates in artificial streams experiments. The impact of Dreissena mussels may be dependent on the quality and quantity of food resources. Ohio River 20590
2890 Dreissena polymorpha Predation/Herbivory Experimental Field Since zebra mussels became abundant in Oneida Lake water clarity has signicantly increased while chlorophyll concentrations have decreased as well as Daphnia biomass. Oneida Lake, New York 20655
2891 Dreissena polymorpha Predation/Herbivory Experimental Field The population growth of all of the crustacean zooplankton was significantly negatively affected by zebra mussels. Negative effects of zebra mussels on zooplankton may be the result of direct predation on zooplankton or perhaps the indirect result of food availability caused by zebra mussels. Ohio River 20662
2892 Dreissena polymorpha Predation/Herbivory Experimental Laboratory Survival of fathead minnows may not be affected by the presence of moderate densities of zebra mussels. However, fish growth may be adversely affected. 20674
2894 Dreissena polymorpha Predation/Herbivory Observational Field After the establishment of zebra mussels in Lake Huron, increases were observed in light penetration, benthic algal biomass, chlorophyll concentrations, and rates of benthic primary productivity. At the same time a shift began from a dominant benthic algal community to one dominated by filamentous green algae. These changes could affect benthic food webs in littoral zones. Lake Huron 20695
2895 Dreissena polymorpha Predation/Herbivory Observational Field Extremely low chlorophyll concentrations were found directly above reefs encrusted with zebra mussels. However, low chlorophyll was also found throughout the water column. Lake Erie 20698
2896 Dreissena polymorpha Predation/Herbivory Observational Field No change was observed in survival, diet, or numbers of young-of-the-year yellow perch Perca flavescens with the introduction zebra mussels. Growth of young fish actually increased. Yellow perch were not impacted negatively by the presence of zebra mussels. Oneida Lake, New York 20712
2897 Dreissena polymorpha Predation/Herbivory Observational Field From 1983-1990, densities of major benthic macroinvertebrate groups (Diporeia, Oligochaeta, Sphaeriidae) declined precipitously in shallow waters of southern Lake Michigan from 1980-1993 likely due to the filtering capability of large zebra mussel populations. Lake Michigan 20726
2947 Dreissena polymorpha Predation/Herbivory Observational Field Production of benthos did not decline with the addition of zebra mussels. However, there was a decrease in zooplankton such as rotifers due to competition with zebra mussels which also feed on algae. More fish biomass could be supported. Lake Erie 22572
2948 Dreissena polymorpha Predation/Herbivory Experimental Field Round gobies reduced the number of non-mussel invertebrates. Chlorophyll a was highest at low zebra mussels densities. Both round gobies and zebra mussels altered the benthic invertebrate community structure and algal resources. Lake Michigan 22573
2971 Dreissena polymorpha Predation/Herbivory Observational Field Zebra mussels may have an indirect impact on small lake stratification patterns and in turn implicate trophic interactions in the ecosystem as a whole. Hargus Lake, Ohio 22613
2972 Dreissena polymorpha Predation/Herbivory Observational Field No significant difference was found in the growth of many age-0 fish species following the introduction of zebra mussels. Lake Erie 22620
2975 Dreissena polymorpha Predation/Herbivory Observational Field Two exotic species, Eurasian watermilfoil and the zebra mussel, may have had a significant influence on communities of submerged macrophytes and therefore impact migrating waterfowl. Lake Erie 22626
2986 Dreissena polymorpha Predation/Herbivory Observational Field Phytoplankton cell density decreased dramatically after the zebra mussel invasion and shifted from cyanobacteria before the invasion to diatoms during the invasion. Hudson River, New York 22631
2991 Dreissena polymorpha Predation/Herbivory Experimental Field Species composition of the benthic algal community may have changed to diatoms due to the increase in light penetration because of zebra mussel grazing of algae. 22633
2992 Dreissena polymorpha Predation/Herbivory Observational Field Zebra mussels have caused both increased water clarity, plant growth, and a shift in fish species which resulted in the reduction of native unionid mussels. Lake St. Clair 22638
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