Native rainbow smelt and nonnative alewife distribution related to temperature and light gradients in Lake Champlain

Simonin, Paul W.; Parrish, Donna L.; Rudstam, Lars G.; Sullivan, Patrick J.; Pientka, Bernard

doi:10.1016/j.jglr.2011.06.002

Cited by 20 publications

(24 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An alternative hypothesis is that Mysis have been impacted by the alewife invasion of the early 2000s. Alewives are capable of consuming large numbers of Mysis (Pothoven and Vanderploeg, 2004), yet Mysis distribution has little overlap with alewives, which are found high in the water column in Lake Champlain (Simonin et al, 2012). Further, the decline in Mysis appears to have occurred in the mid-1990s, before the arrival of alewife to the lake (Ball et al, 2015).…”

Section: Densitymentioning

confidence: 99%

Mysis zooplanktivory in Lake Champlain: A bioenergetics analysis

Hrycik

Simonin

Rudstam

et al. 2015

Journal of Great Lakes Research

Self Cite

View full text Add to dashboard Cite

Section: Densitymentioning

confidence: 99%

Mysis zooplanktivory in Lake Champlain: A bioenergetics analysis

Hrycik

Simonin

Rudstam

et al. 2015

Journal of Great Lakes Research

Self Cite

View full text Add to dashboard Cite

“…Adult and age‐0 Alewives and age‐0 Rainbow Smelt are in the warmer epilimnion and metalimnion when the lake is stratified (Simonin et al. ) and, thus, are more available to Walleyes and Atlantic Salmon that prefer shallower depths.…”

Section: Discussionmentioning

confidence: 99%

“…In Lake Champlain, fast Alewife growth rates were observed soon after they became established, with 300‐mm adults present in the system during 2007–2008 (Simonin et al. ), indicating excellent feeding conditions. In the years since 2008, Alewife growth has slowed (B. Pientka, unpublished data), a trend that is correlated with reduced energy content elsewhere (Rand and Stewart ; Rudstam et al.…”

Section: Discussionmentioning

confidence: 99%

Piscivore Diet Shifts and Trophic Level Change after Alewife Establishment in Lake Champlain

et al. 2018

Self Cite

View full text Add to dashboard Cite

Invasions and deliberate introductions of new prey species are likely to affect the prey choice and trophic level of resident predators. Rainbow Smelt Osmerus mordax and Alewife Alosa pseudoharengus are common prey fish species in lakes throughout North America, either as native or nonnative species. The establishment of Alewives in the 2000s in a lake with a native Rainbow Smelt population (Lake Champlain) presented an opportunity to study changes in the diet and trophic level of fish already established in the system. Using stable isotope analysis, we found that Alewives became a major component of predator diets, in particular of the diets of Atlantic Salmon Salmo salar and Walleye Sander vitreus. Lake Trout Salvelinus namaycush consumed relatively few Alewives. For Walleyes (the predator with both pre‐ and post‐Alewife isotope ratios available), the δ15N values decreased significantly from the pre‐Alewife period of the late 1990s, indicating that Walleyes feed at lower trophic levels when Alewives are present. Predation on Alewives was correlated with the amount of spatial overlap of predators and prey. Our results show that the introduction of Alewives has altered the predator–prey linkages in Lake Champlain, alterations that can have major effects on food web structure and trophic cascades.

show abstract

“…In this issue, Simonin et al (2012) evaluate potential competition between invasive alewife and rainbow smelt (Osmerus mordax), which are a critical link in the deep-water trophic web of the lake. They found that adult and juvenile rainbow smelt tended to be in deeper, colder water than alewife of the same age, thereby limiting habitat overlap of these fishes within the lake.…”

Section: Fish and Fisheriesmentioning

confidence: 99%