Diets of Lake Trout Inhabiting Nearshore and Offshore Lake Michigan Environments

Miller, Michael A.; Holey, Mark E.

doi:10.1016/s0380-1330(92)71274-x

Cited by 44 publications

(36 citation statements)

References 22 publications

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“…Historically, bloater were dominant prey items for native fishes such as lake trout, Salvelinus namaycush, and burbot, Lota lota (Van Oosten and Deason, 1938;Dryer et al, 1965), but they currently comprise a smaller portion of the diet of these piscivores than non-native rainbow smelt and alewife (Miller and Holey, 1992;Fratt et al, 1997;Madenjian et al, 1998). High fat content (Eshenroder and Burnham-Curtis, 1999;Madenjian et al, 2000) and lack of the thiaminase enzyme that causes thiamine deficiency complex in salmonids (and is present in nonnative forage fishes; Brown et al, 2005;Tillitt et al, 2005) make bloater a high-quality forage base.…”

Section: Predatorsmentioning

confidence: 99%

The Ecology of Body Size and Depth Use by Bloater (Coregonus hoyiGill) in the Laurentian Great Lakes: Patterns and Hypotheses

Clemens¹,

Crawford²

2009

Reviews in Fisheries Science

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Deepwater ciscoes (genus Coregonus, subgenus Leucichthys) radiated into six phenotypes that occupy different depths in the Great Lakes, based upon body size and lipid content. Large, lipid-dense ciscoes occupy greater depths than small, lean ciscoes. This relationship is observed between adults and juveniles of the most prevalent deepwater cisco, the bloater (C. hoyi Gill). Lipid-dense adult bloaters are restricted to the hypolimnion, whereas lean juveniles are found primarily in the epilimnion. This article critically reviews, synthesizes, and provides hypotheses from the literature on the ecology of body size and depth use of bloater. Factors influencing depth use in bloater are categorized by Fry's (1971) environmental factors. The case is made for two parsimonious hypotheses to explain the depth distribution by body size of bloater:(1) the optimal foraging-antipredation (OFA) hypothesis, and (2) the mass-specific metabolism hypothesis. The OFA hypothesis relates abundance of piscivores with abundance and extent of diel vertical migration of bloater. The mass-specific metabolism hypothesis relates body size to density-dependent growth, metabolism, swimming activity and hence depth distribution of bloater. Follow-up hypotheses and predictions are presented and may broaden our understanding of trophic ecology and adaptive radiation of deepwater ciscoes in the Great Lakes.

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Section: Predatorsmentioning

confidence: 99%

The Ecology of Body Size and Depth Use by Bloater (Coregonus hoyiGill) in the Laurentian Great Lakes: Patterns and Hypotheses

Clemens¹,

Crawford²

2009

Reviews in Fisheries Science

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“…Cursory analyses of changes in chinook salmon growth and somatic lipid concentrations suggest that chinook salmon from Lake Michigan may have less stable somatic lipid stores than lake trout, an instability that may induce variability in concentrations of lipids and organochlorines transferred to the eggs. The salmon have shown signs of energetic constraints with reduced trophy size (95th percentile weight), lipid content, and growth rate during the B980s, changes that may be associated with forage limitations (Miller and Holey 1992). Chinook salmon prey heavily on alewife (Alssa pseudohareazgus) (Magar 1984;Jude et al 1987), a species that has greatly declined in numbers since the 1970s and has shown significant annual population fluctuations (Hatch et al 1981;Brown 1989).…”

Section: -Lake Superior Dieldrinmentioning

confidence: 99%

Maternal Transfer of Organochlorine Compounds in Salmonines to Their Eggs

Miller¹

1993

Can. J. Fish. Aquat. Sci.

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100

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Miller, M. A. 1993. Maternal transfer of organochlorine compounds in salmonines to their eggs. Can. ). Fish.Aquat. Sci. 58: 1405-1 41 3.To investigate relationships between the concentrations of lipophilic organochlorine compounds in salmonine fish and their eggs and the role of lipids in maternal transfer of these compounds, muscle tissue and fertilized eggs from chinook salmon (Oncorhynchus tshawytscha) and lake trout (SaEveEinus namaycusk) were analyzed using gas chromatography. The concentrations of organochlorine compounds in the muscle tissue of the gravid fish were significantly correlated with the concentration of these compounds in the eggs (P < 8.01). Egg lipid concentrations were species specific, poorly correlated with muscle tissue lipid concentration, and did not appear to influence organochlorine compound transfer to the eggs. Total concentrations of PCBs and p,pr-DBE concentrations in chinook salmon eggs and total concentrations of PCBs, p,pr-DDE, and dieldrin in lake trout eggs were significantly correlated with the concentrations of these compounds in the muscle tissue of the gravid fish. Consequently, spatial differences or temporal changes in the concentrations of lipophilic compounds in chinook salmon or lake trout may significantly influence the concentrations of these compounds in their eggs.Afin d'etudier les rapports entre la concentration de cornpos6s organochlores lipophiles chez les salmonid& ainsi que dans leurs oeknfs et le r6le des lipides dans le transfert de ces composes par la mere, des tissus musculaires et des oeufs f6cond6s de saumons qninnat (Qnssrhynchus tshawytscha) et de touladi (Salvelinus namaycusk) ont etudies au moyen de la technique de chromatographie en phase gazeuse. I B existe une correlation significative entre la concentration des composks organochlor6s dans les muscles de femelles gravides et la concentration de ces compos6s dans [es oeufs iP < 0,81). La concentration de lipides dans les oekmfs est caract6ristique de chaque espGce, et elle est en mauvaise correlation avec la concentration des lipides dans les muscles; elle ne semble pas influencer Ie transfert des composes organochlores dans les oeufs. I 1 existe une correlation significative entre la concentration totale de BPC et celle de p,p'-BDE dans les oeufs du quinnat, ainsi qu'entre la concentration totale de BPC, celle de p,pl-DBE ainsi que la concerrtration de dieldrine dans les oeufs de touladi, avec la concentration de ces composes dans le muscle des femelles gravides. Par conskquent, des differences, dans I'espace ou dans le temps, de concentration en composes lipophiles dans le quinnat ou le touladi peuvent avoir une influence significative sur la concentration de ces composes dans les oeufs.

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“…Mysis was nearly absent in the diet of lake trout collected at two coastal sites. Similarly, Miller and Holey (1992) found that, on four of five sampling dates, Mysis was an important part of the smaller Sheboygan Reef lake trout diet, with Diporeia appearing in lower numbers. Their coastal lake trout had eaten a negligible amount of Mysis or Diporeia.…”

Section: Mysismentioning

confidence: 67%

“…Slimy sculpin are an important trophic link between their benthic and epibenthic prey and piscivorous fishes such as lake trout (Miller and Holey, 1992;Owens and Weber, 1995;Madenjian et al, 1998;Ray et al, 2007) and burbot (Lota lota) (Fratt et al, 1997). Previous studies have mostly shown that Great Lakes slimy sculpin feed primarily on the soft-bottom, infaunal amphipod Diporeia hoyi, (Wells, 1980;Kraft and Kitchell, 1986;Selgeby, 1988;Owens and Weber, 1995;Hondorp, 2006) with alternative prey such as Mysis diluviana, chironomid larvae and pupae being less important.…”

Section: Introductionmentioning

confidence: 99%

Evidence for allochthonous prey delivery to Lake Michigan's Mid-Lake Reef Complex: Are deep reefs analogs to oceanic sea mounts?

Houghton¹,

Bronte²,

Paddock³

et al. 2010

Journal of Great Lakes Research

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Diets of Lake Trout Inhabiting Nearshore and Offshore Lake Michigan Environments

Cited by 44 publications

References 22 publications

The Ecology of Body Size and Depth Use by Bloater (Coregonus hoyiGill) in the Laurentian Great Lakes: Patterns and Hypotheses

The Ecology of Body Size and Depth Use by Bloater (Coregonus hoyiGill) in the Laurentian Great Lakes: Patterns and Hypotheses

Maternal Transfer of Organochlorine Compounds in Salmonines to Their Eggs

Evidence for allochthonous prey delivery to Lake Michigan's Mid-Lake Reef Complex: Are deep reefs analogs to oceanic sea mounts?

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