Seasonal consumption of Hemimysis anomala by fish in Southeastern Lake Ontario, 2009–2010

Spatial variability in trophic offset and food sources of Hemimysis anomala in lentic and lotic ecosystems within the Great Lakes basin

“…This clearly showed that while Hemimysis may rely more heavily on water column production in most instances, it is able to make significant use of both benthic and pelagic food sources. Pelagic predators have been documented consuming Hemimysis in the Great Lakes basin (Lantry et al, 2012;Yuille et al, 2012), implying that at sites where Hemimysis is deriving a significant portion of its diet from the benthic zone, the new invader may act as a restored link between benthic and pelagic food webs (Ricciardi et al, 2012) possibly counteracting dreissenid-induced decoupling (Hecky et al, 2004).…”

“…At these sites, if Hemimysis is incorporated into the diets of water column consumers, decoupling between benthic and pelagic food webs may decrease as nutrients consumed by Hemimysis in the benthic zone are reintroduced into the water column food web (Marty et al, 2012). Evidence has suggested that fish in the Great Lakes basin (Lake Ontario and Lake Erie) do consume Hemimysis (Lantry et al, 2012;Yuille et al, 2012), although it is unclear to what degree fish will incorporate Hemimysis into their diet in the long term (Lantry et al, 2012). Variations in the feeding niche used by Hemimysis will make it more difficult to predict potential impacts at sites that have not yet been invaded.…”

Mysis diluviana and Hemimysis anomala: Reviewing the roles of a native and invasive mysid in the Laurentian Great Lakes region

“…Even the smaller of the two Great Lakes mysid species, Hemimysis, has higher caloric value than other available zooplankton . Lantry et al (2010Lantry et al ( , 2012 provide evidence of the importance of Hemimysis in the diets of Lake Ontario nearshore fish such as cisco (Coregonus artedi), white perch (Morone americana), alewife (Alosa pseudoharengus), rockbass (Ampbloplites rupestris) and small yellow perch (Perca flavescens). Alewife has been the most important planktivorous fish species in Lake Ontario for many years, increasing its dependence on Mysis as prey in the summer over the last 10 to 15 years (Stewart et al, 2009).…”