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Life history differences between fat and lean morphs of lake charr (Salvelinus namaycush) in Great Slave Lake, Northwest Territories, Canada

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Abstract

Life history characteristics (size, age, plumpness, buoyancy, survival, growth, and maturity) were compared between fat and lean morphs of lake charr Salvelinus namaycush in Great Slave Lake, Canada, to determine if differences may reflect effects of resource polymorphism. Lake charr were sampled using graded-mesh gill nets set in three depth strata. Of 236 lake charr captured, 122 were a fat morph and 114 were a lean morph. Males and females did not differ from each other in any attributes for either fat or lean morphs. The fat morph averaged 15 mm longer, 481 g heavier, and 4.7 years older than the lean morph. The fat morph averaged 26% heavier and 48% more buoyant at length than the lean morph. Survival of the fat morph was 1.7% higher than that of the lean morph. The fat morph grew at a slower annual rate to a shorter asymptotic length than the lean morph. Fat and lean morphs matured at similar lengths and ages. We concluded that the connection between resource polymorphism and life histories in lean versus fat lake charr suggests that morph-specific restoration objectives may be needed in lakes where lake charr diversity is considered to be a restoration goal.

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References

  • Agassiz, L., 1850. Fishes of lake superior. In Neil Sampson, R. & David L. Adams (eds), Lake Superior: Physical Character, Vegetation, and Animals, Compared with Those of Other and Similar Regions. Gould, Boston: 332–336.

    Google Scholar 

  • Ahrenstorff, T. D., T. R. Hrabik, J. D. Stockwell, D. L. Yule & G. G. Sass, 2011. Seasonally dynamic diel vertical migrations of Mysis diluviana, coregonine fishes, and siscowet Lake Trout in the pelagia of western Lake Superior. Transactions of the American Fisheries Society 140: 1504–1520.

    Article  Google Scholar 

  • Alfonso, N. R., 2004. Evidence for two morphotypes of lake charr, Salvelinus namaycush, from Great Bear Lake, Northwest Territories, Canada. Environmental Biology of Fishes 71: 21–32.

    Article  Google Scholar 

  • Blackie, C., D. Weese & D. Noakes, 2003. Evidence for resource polymorphism in the lake charr (Salvelinus namaycush) population of Great Bear Lake, Northwest Territories, Canada. Ecoscience 10: 509–514.

    Article  Google Scholar 

  • Bronte, C. R., J. H. Selgeby, J. H. Saylor, G. S. Miller & N. R. Foster, 1995. Hatching, dispersal, and bathymetric distribution of age-0 wild lake trout at the Gull Island Shoal complex, Lake Superior. Journal of Great Lakes Research 21(Supplement 1): 233–245.

    Article  Google Scholar 

  • Bronte, C. R., M. P. Ebener, D. R. Schreiner, D. S. DeVault, M. M. Petzold, D. A. Jensen, C. Richards & S. J. Lozano, 2003. Fish community change in Lake Superior, 1970–2000. Canadian Journal of Fisheries and Aquatic Sciences 60: 1552–1574.

    Article  Google Scholar 

  • Bronte, C. R., C. C. Krueger, M. E. Holey, M. L. Toneys, R. L. Eshenroder, & J. L. Jonas, 2008. A guide for the rehabilitation of lake trout in Lake Michigan. Great Lakes Fishery Commission, Miscellaneous Publication 2008-01, Ann Arbor, Michigan. [Available: http://www.glfc.org/pubs/SpecialPubs/2008-01.pdf 05/29/2015].

  • Boeuf, G. & P.-Y. Le Bail, 1999. Does light have an influence on fish growth? Aquaculture 177: 129–152.

    Article  Google Scholar 

  • Burnham-Curtis, M. K. & C. R. Bronte, 1996. Otoliths reveal a diverse age structure for humper lake trout in Lake Superior. Transactions of the American Fisheries Society 125: 844–851.

    Article  Google Scholar 

  • Burnham-Curtis, M. K. & G. R. Smith, 1994. Osteological evidence of genetic divergence of Lake Trout (Salvelinus namaycush) in Lake Superior. Copeia 1994: 843–850.

    Article  Google Scholar 

  • Campana, S. E., 1990. How reliable are growth back-calculations based on otoliths? Canadian Journal of Fisheries and Aquatic Sciences 47: 2219–2227.

    Article  Google Scholar 

  • Campana, S. E., 2001. Accuracy, precision and quality control in age determination, including a review of the use and abuse of age validation methods. Journal of Fish Biology 59: 197–242.

    Article  Google Scholar 

  • Campana, S. E., J. M. Casselman & C. M. Jones, 2008. Bomb radiocarbon chronologies in the Arctic, with implications for the age validation of lake trout (Salvelinus namaycush) and other Arctic species. Canadian Journal of Fisheries and Aquatic Sciences 65: 733–743.

    Article  Google Scholar 

  • Casselman, J. M. & J. M. Gunn, 1992. Dynamics in year-class strength, growth, and calcified-structure size of native lake trout (Salvelinus namaycush) exposed to moderate acidification and whole-lake neutralization. Canadian Journal of Fisheries and Aquatic Sciences 49(Supplement 1): 102–113.

    Article  CAS  Google Scholar 

  • Chavarie, L., K. L. Howland & W. M. Tonn, 2013. Sympatric polymorphism in Lake Trout: the coexistence of multiple shallow-water morphotypes in Great Bear Lake. Transactions of the American Fisheries Society 142: 814–823.

    Article  Google Scholar 

  • Chavarie, L., K. Howland, C. Gallagher & W. Tonn, 2014. Fatty acid signatures and stomach contents of four sympatric Lake Trout: assessment of trophic patterns among morphotypes in Great Bear Lake. Ecology of Freshwater Fish. doi:10.1111/eff.12195.

    Google Scholar 

  • Chavarie, L., K. Howland, L. Harris & W. Tonn, 2015a. Polymorphism in lake trout in Great Bear Lake: intra-lake morphological diversification at two spatial scales. Biological Journal of the Linnean Society 114: 109–125.

    Article  Google Scholar 

  • Chavarie, L., K. Howland, P. Venturelli, B. C. Kissinger, R. Talman & W. Tonn, 2015b. Life-history variation among four shallow-water morphotypes of Lake Trout from Great Bear Lake, Canada. Journal of Great Lakes Research. doi:10.1016/j.jglr.2015.07.006.

    Google Scholar 

  • Christie, G. C. & H. A. Regier, 1988. Measures of optimal thermal habitat and their relationship to yields for four commercial fish species. Canadian Journal of Fisheries and Aquatic Sciences 45: 301–314.

    Article  Google Scholar 

  • Dehring, T. R., A. F. Brown, C. H. Daugherty & S. R. Phelps, 1981. Survey of the genetic variation among eastern Lake Superior lake trout (Salvelinus namaycush) populations in eastern Lake Superior. Canadian Journal of Fisheries and Aquatic Sciences 38: 1738–1746.

    Article  Google Scholar 

  • Dryer, W. R., L. F. Erkkila & C. L. Tetzloff, 1965. Food of lake trout in Lake Superior. Transactions of the American Fisheries Society 94: 169–176.

    Article  Google Scholar 

  • Dubois, A. & R. Lagueux, 1968. Etude compar´ee de l’ˆage scalaire et de l’ˆage otolithique de la touladi (Salvelinus namaycush), Lac Mistassini, Quebec. [Comparative study of the age as determined by scales and otoliths of the lake trout (Salvelinus namaycush) of Lake Mistassini, Quebec.]. Naturaliste Canadien (Quebec) 95: 907–928.

    Google Scholar 

  • Eschmeyer, P. H. & A. M. Phillips Jr, 1965. Fat content of the flesh of siscowets and lake trout from Lake Superior. Transactions of the American Fisheries Society 94: 62–74.

    Article  Google Scholar 

  • Eshenroder, R. L., 2008. Differentiation of deep-water lake charr Salvelinus namaycush in North American lakes. Environmental Biology of Fishes 83: 77–90.

    Article  Google Scholar 

  • Evans, M. S., 2000. The large lake ecosystems of northern Canada. Aquatic Ecosystem Health and Management 3: 65–79.

    Article  Google Scholar 

  • Falk, M. R., D. V. Gillman, & L. W. Dahlke, 1973. The 1972 sports fisheries of Great Bear and Great Slave lakes. Environment Canada, Fisheries and Marine Service, Technical Report Series CEN/T–73–8, Winnipeg: 1–100.

  • Fisher, S. J. & B. L. Swanson, 1996. Diets of siscowet Lake Trout from the Apostle Islands region of Lake Superior, 1993. Journal of Great Lakes Research 22: 463–468.

    Article  Google Scholar 

  • Fraser, D., F. A. Huntingford & C. E. Adams, 2008. Foraging specialisms, prey size and life-history patterns: a test of predictions using sympatric polymorphic Arctic charr (Salvelinus alpinus). Ecology of Freshwater Fish 17: 1–9.

    Article  Google Scholar 

  • Gamble, A. E., T. R. Hrabik, J. D. Stockwell & D. L. Yule, 2011. Trophic connections in Lake Superior Part I: the offshore fish community. Journal of Great Lakes Research 37: 541–549.

    Article  Google Scholar 

  • Gallucci, V. F. & T. J. Quinn II, 1979. Reparameterizing, fitting, and testing a simple growth model. Transactions of the American Fisheries Society 108: 14–25.

    Article  Google Scholar 

  • Goetz, F., D. Rosauer, S. Sitar, G. Goetz, C. Simchick, S. Roberts, R. Johnson, C. Murphy, C. R. Bronte & S. Mackenzie, 2010. A genetic basis for the phenotypic differentiation between siscowet and lean lake trout (Salvelinus namaycush). Molecular Ecology 19(Supplement 1): 176–196.

    Article  PubMed  Google Scholar 

  • Goetz, F., A. Jasonowicz, R. Johnson, P. Biga, G. Fischer & Shawn Sitar, 2014. Physiological differences between lean and siscowet lake trout morphotypes: are these metabolotypes? Canadian Journal of Fisheries and Aquatic Sciences 71: 427–435.

    Article  CAS  Google Scholar 

  • Goodier, J. L., 1981. Native lake trout (Salvelinus namaycush) stocks in the Canadian water of Lake Superior prior to 1955. Canadian Journal of Fisheries and Aquatic Sciences 38: 1724–1737.

    Article  Google Scholar 

  • Hansen, M. J., 1999. Lake trout in the Great Lakes: basin-wide stock collapse and binational restoration. In Taylor, W. W. & C. P. Ferreri (eds), Great Lakes Fishery Policy and Management: A Binational Perspective. Michigan State University Press, East Lansing: 417–453.

    Google Scholar 

  • Hansen, M. J., C. P. Madenjian, T. E. Helser & J. H. Selgeby, 1997. Gillnet selectivity of lake trout (Salvelinus namaycush) in Lake Superior. Canadian Journal of Fisheries and Aquatic Sciences 54: 2483–2490.

    Article  Google Scholar 

  • Hansen, M. J., N. A. Nate, C. C. Krueger, M. S. Zimmerman, H. G. Kruckman & W. W. Taylor, 2012. Age, growth, survival, and maturity of Lake Trout morphotypes in Lake Mistassini, Quebec. Transactions of the American Fisheries Society 141: 1492–1503.

    Article  Google Scholar 

  • Harvey, C. J. & J. F. Kitchell, 2000. A stable isotope evaluation of the structure and spatial heterogeneity of a Lake Superior food web. Canadian Journal of Fisheries and Aquatic Sciences 57: 1395–1403.

    Article  CAS  Google Scholar 

  • Harvey, C. J., S. T. Schram & J. F. Kitchell, 2003. Trophic relationships among lean and siscowet Lake Trout in Lake Superior. Transactions of the American Fisheries Society 132: 219–228.

    Article  Google Scholar 

  • Healey, M. C., 1978. The dynamics of exploited lake trout populations and implications for management. The Journal of Wildlife Management 42: 307–328.

    Article  Google Scholar 

  • Henderson, B. A. & D. M. Anderson, 2002. Phenotypic differences in buoyancy and energetics of lean and siscowet lake charr in Lake Superior. Environmental Biology of Fishes 64: 203–209.

    Article  Google Scholar 

  • Hindar, K. & B. Jonsson, 1993. Ecological polymorphism in Arctic charr. Biological Journal of the Linnean Society 48: 63–74.

    Article  Google Scholar 

  • Horns, W. H., 1985. Difference in early development among lake trout (Salvelinus namaycush) populations. Canadian Journal of Fisheries and Aquatic Sciences 42: 737–743.

    Article  Google Scholar 

  • Hosmer, D. W. & S. Lemeshow, 2000. Applied Logistic Regression, 2nd ed. Wiley, New York.

    Book  Google Scholar 

  • Hrabik, T. R., O. P. Jensen, S. J. D. Martell, C. J. Walters & J. F. Kitchell, 2006. Diel vertical migration in the Lake Superior pelagic community. I. Changes in vertical migration of coregonids in response to varying predation risk. Canadian Journal of Fisheries and Aquatic Sciences 63: 2286–2295.

    Article  Google Scholar 

  • Hrabik, T. R., B. M. Roth & T. Ahrenstorff, 2014. Predation risk and prey fish vertical migration in Lake Superior: insights from an individual based model of siscowet (Salvelinus namaycush). Journal of Great Lakes Research 40: 730–738.

    Article  Google Scholar 

  • Ihssen, P. E. & J. S. Tait, 1974. Genetic differences in retention of swimbladder gas between two populations of lake trout (Salvelinus namaycush). Journal of the Fisheries Research Board of Canada 31: 1351–1354.

    Article  Google Scholar 

  • Isaac, E. J., T. R. Hrabik, J. D. Stockwell & A. E. Gamble, 2012. Prey selection by the Lake Superior fish community. Journal of Great Lakes Research 38: 326–335.

    Article  Google Scholar 

  • Johnson, L., 1972. Keller Lake: characteristics of a culturally unstressed salmonid community. Journal of the Fisheries Research Board of Canada 29: 731–740.

    Article  Google Scholar 

  • Johnson, L., 1976. Ecology of arctic populations of lake trout, Salvelinus namaycush, lake whitefish, Coregonus clupeaformis, Arctic char, S. alpinus, and associated species in unexploited lakes of the Canadian Northwest Territories. Journal of the Fisheries Research Board of Canada 33: 2459–2488.

    Article  Google Scholar 

  • Jonsson, B. & K. Hindar, 1982. Reproductive strategy of dwarf and normal Arctic charr (Salvelinus alpinus) from Vangsvatnet Lake, western Norway. Canadian Journal of Fisheries and Aquatic Sciences 39: 1404–1413.

    Article  Google Scholar 

  • Keleher, J. J., 1972. Great Slave Lake: effects of exploitation on the salmonid community. Journal of the Fisheries Research Board of Canada 29: 741–753.

    Article  Google Scholar 

  • Kennedy, W. A., 1954. Growth, maturity and mortality in the relatively unexploited Lake Trout, Cristivomer namaycush, of Great Slave Lake. Journal of the Fisheries Research Board of Canada 11: 827–852.

    Article  Google Scholar 

  • Khan, N. Y. & S. U. Qadri, 1970. Morphological differences in Lake Superior lake char. Journal of the Fisheries Research Board of Canada 27: 161–167.

    Article  Google Scholar 

  • Krueger, C. C. & M. P. Ebener, 2004. Rehabilitation of lake trout in the Great Lakes: past lessons and future challenges. In Gunn, J. M., R. J. Steedman & R. A. Ryder (eds), Boreal Shield Watersheds: Lake Trout Ecosystems in a Changing Environment. Lewis Publishers, Boca Raton: 37–56.

    Google Scholar 

  • Krueger, C. C. & P. E. Ihssen, 1995. Review of genetics of lake trout in the Great Lakes: history, molecular genetics, physiology, strain comparisons, and restoration management. Journal of Great Lakes Research 21(Supplement 1): 348–363.

    Article  Google Scholar 

  • Krueger, C. C., J. E. Marsden, H. L. Kincaid & B. May, 1989. Genetic differentiation among lake trout strains stocked in Lake Ontario. Transactions of American Fisheries Society 118: 317–330.

    Article  Google Scholar 

  • Low, G., D. B. Stewart, A. C. Day & W. E. F. Taptuna, 1999. Comparison of fish harvests from the East Arm of Great Slave Lake, N.W.T., by itinerant sport anglers in 1986 and 1994. Department of Fisheries and Oceans, Central and Arctic Region, Canadian Technical Report of Fisheries and Aquatic Sciences 2263, Winnipeg.

  • Markham, J., A. Cook, T. MacDougall, L. Witzel, K. Kayle, C. Murray, M. Fodale, E. Trometer, F. Neave, J. Fitzsimons, J. Francis, & M. Stapanian, 2008. A strategic plan for the rehabilitation of lake trout in Lake Erie, 2008–2020. Great Lakes Fishery Commission, Miscellaneous Publication 2008–2, Ann Arbor, Michigan. [Available: http://www.glfc.org/pubs/SpecialPubs/2008-02.pdf 06/01/2015].

  • Martin, N. V. & C. H. Olver, 1980. The lake charr: Salvelinus namaycush. In Balon, E. K. (ed.), Charrs: Salmonid Fishes of the Genus Salvelinus. Dr. W. Junk Publishers, The Hague: 205–277.

    Google Scholar 

  • McDermid, J. L., B. J. Shuter & N. P. Lester, 2010. Life history differences parallel environmental differences among North American lake trout (Salvelinus namaycush) populations. Canadian Journal of Fisheries and Aquatic Sciences 67: 314–325.

    Article  Google Scholar 

  • Miller, M. A. & S. T. Schram, 2000. Growth and contaminant dynamics of Lake Superior Lake Trout. Journal of Great Lakes Research 26: 102–111.

    Article  CAS  Google Scholar 

  • Mills, K. H., S. M. Chalanchuk & D. J. Allan, 2002. Abundance, annual survival, and recruitment of unexploited and exploited lake charr, Salvelinus namaycush, populations at the experimental lakes area, northwestern Ontario. Environmental Biology of Fishes 64: 281–292.

    Article  Google Scholar 

  • Mooij, W. M., J. M. Van Rooij & S. Wijnhoven, 1999. Analysis and comparison of fish growth from small samples of length-at-age data: detection of sexual dimorphism in Eurasian Perch as an example. Transactions of the American Fisheries Society 128: 483–490.

    Article  Google Scholar 

  • Moore, S. A. & C. R. Bronte, 2001. Delineation of sympatric morphotypes of lake trout in Lake Superior. Transactions of the American Fisheries Society 130: 1233–1240.

    Article  Google Scholar 

  • Muir, A. M., C. C. Krueger & M. J. Hansen, 2012a. Re-establishing lake trout in the Laurentian Great Lakes: the past, present, and future. In Taylor, W. W., A. J. Lynch & N. J. Leonard (eds), Great Lakes Fishery Policy and Management: A Binational Perspective, 2nd ed. Michigan State University Press, East Lansing: 533–588.

    Google Scholar 

  • Muir, A. M., P. Vecsei & C. C. Krueger, 2012b. A perspective on perspectives: methods to reduce variation in shape analysis of digital images. Transactions of the American Fisheries Society 141: 1161–1170.

    Article  Google Scholar 

  • Muir, A. M., C. R. Bronte, M. S. Zimmerman, H. R. Quinlan, J. D. Glase & C. C. Krueger, 2014. Ecomorphological diversity of Lake Charr Salvelinus namaycush at Isle Royale, Lake Superior. Transactions of the American Fisheries Society 143: 972–987.

    Google Scholar 

  • Muir, A. M., M. J. Hansen, C. R. Bronte & C. C. Krueger, 2015. If Arctic Charr Salvelinus alpinus is “the most diverse vertebrate”, what is the Lake Charr Salvelinus namaycush? Fish and Fisheries. doi:10.1111/faf.12114.

    Google Scholar 

  • Page, K. S., K. T. Scribner & M. K. Burnham-Curtis, 2004. Genetic diversity of wild and hatchery lake trout populations: relevance for management and restoration in the Great Lakes. Transactions of the American Fisheries Society 133: 674–691.

    Article  Google Scholar 

  • Piccolo, J. J., W. A. Hubert & R. A. Whaley, 1993. Standard weight equation for lake trout. North American Journal of Fisheries Management 13: 401–404.

    Article  Google Scholar 

  • Quinn II, T. J. & R. B. Deriso, 1999. Quantitative Fish Dynamics. Oxford University Press, New York.

    Google Scholar 

  • R Core Team, 2014. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna. [Available: http://www.R-project.org/].

  • Rahrer, J. F., 1965. Age, growth, maturity, and fecundity of “humper” lake trout, Isle Royale, Lake Superior. Transactions of the American Fisheries Society 94: 75–83.

    Article  Google Scholar 

  • Rawson, D. S., 1949. Estimating the fish production of Great Slave Lake. Transactions of the American Fisheries Society 77: 81–92.

    Article  Google Scholar 

  • Rawson, D. S., 1950. The physical limnology of Great Slave Lake. Journal of the Fisheries Research Board of Canada 8: 3–66.

    Article  Google Scholar 

  • Rawson, D. S., 1951. Studies of the fish of Great Slave Lake. Journal of the Fisheries Research Board of Canada 8: 207–240.

    Article  Google Scholar 

  • Ricker, W. E., 1975.  Computation and interpretation of biological statistics of fish populations.  Bulletin 191 of the Fisheries Research of Canada, Ottawa, Ontario.

  • Robinson, B. W. & D. S. Wilson, 1994. Character release and displacement in fishes: a neglected literature. The American Naturalist 144: 596–627.

    Article  Google Scholar 

  • Robson, D. S. & D. G. Chapman, 1961. Catch curves and mortality rates. Transactions of the American Fisheries Society 90: 181–189.

    Article  Google Scholar 

  • Roff, D. A., 1983. An allocation model of growth and reproduction in fish. Canadian Journal of Fisheries and Aquatic Sciences 40: 1395–1404.

    Article  Google Scholar 

  • Roosevelt, R. B., 1865. Superior Fishing; or, the Striped Bass, Trout, and Black Bass of the Northern States. Carlton Publishing, New York.

    Google Scholar 

  • Rose, K. A., J. H. Cowan Jr, K. O. Winemiller, R. A. Myers & R. Hilborn, 2001. Compensatory density dependence in fish populations: importance, controversy, understanding and prognosis. Fish and Fisheries 2: 293–327.

    Article  Google Scholar 

  • Schluter, D. & J. D. McPhail, 1992. Ecological character displacement and speciation in sticklebacks. American Naturalist 140: 85–108.

    Article  CAS  PubMed  Google Scholar 

  • Sharp, D. & D. R. Bernard, 1988. Precision of estimated ages of lake trout from five calcified structures. North American Journal of Fisheries Management 8: 367–372.

    Article  Google Scholar 

  • Shuter, B. J., M. L. Jones, R. M. Korver & N. P. Lester, 1998. A general, life history based model for regional management of fish stocks: the inland lake trout (Salvelinus namaycush) fisheries of Ontario. Canadian Journal of Fisheries and Aquatic Sciences 55: 2161–2177.

    Article  Google Scholar 

  • Simard, A. & E. Magnin, 1972. Methode de détermination de l’âge et croissance du touladi, Salvelinus namaycush, Walbaum, du 1ac. l’Assomption et du lac Tremblant, Quebec. [Method for the determination of the age and growth of the lake trout, Salvelinus namaycush, of Lake L’Assomption and Lake Tremblant, Quebec.]. Naturaliste Canadien (Quebec) 99: 561–579.

    Google Scholar 

  • Sitar, S. P., H. M. Morales, M. T. Mata, B. B. Bastar, D. M. Dupras, G. D. Kleaver & K. D. Rathbun, 2008. Survey of siscowet lake trout at their maximum depth in Lake Superior. Journal of Great Lakes Research 34: 276–286.

    Article  Google Scholar 

  • Sitar, S. P., A. J. Jasonowicz, C. A. Murphy & F. W. Goetz, 2014. Estimates of skipped spawning in lean and siscowet Lake Trout in southern Lake Superior: implications for stock assessment. Transactions of the American Fisheries Society 143: 660–672.

    Article  Google Scholar 

  • Skúlason, S., S. S. Snorrason, D. L. G. Noakes & M. M. Ferguson, 1996. Genetic basis of life history variations among sympatric morphs of Arctic char, Salvelinus alpinus. Canadian Journal of Fisheries and Aquatic Sciences 53: 1807–1813.

    Article  Google Scholar 

  • Smith, T. B. & S. Skúlason, 1996. Evolutionary significance of resource polymorphisms in fishes, amphibians, and birds. Annual Review of Ecology and Systematics 27: 111–133.

    Article  Google Scholar 

  • Stewart, D. B., 1997. A review of the status and harvests of fish stocks in the North Slave area, Northwest Territories. Department of Fisheries and Oceans—Canada, Canadian Manuscript Report of Fisheries and Aquatic Sciences 2393, Winnipeg.

  • Thurston, C. E., 1962. Physical characteristics and chemical composition of two subspecies of Lake Trout. Journal of the Fisheries Research Board of Canada 19: 39–44.

    Article  CAS  Google Scholar 

  • Trippel, E. A., 1993. Relations of fecundity, maturation, and body size of lake trout, and implications for management in northwestern Ontario lakes. North American Journal of Fisheries Management 13: 64–72.

    Article  Google Scholar 

  • Van Oosten, J. & H. J. Deason, 1938. The food of the lake trout (Cristivomer namaycush namaycush) and of the lawyer (Lota maculosa) of Lake Michigan. Transactions of the American Fisheries Society 67: 155–177.

    Article  Google Scholar 

  • Vigliola, L. & M. G. Meekan, 2009. The back-calculation of fish growth from otoliths. In Green, B. S., B. D. Mapstone, G. Carlos & G. A. Begg (eds), Tropical Fish Otoliths: Information for Assessment, Management and Ecology, Volume 11 of Reviews: Methods and Technologies in Fish Biology and Fisheries, Springer, New York: 174–211.

    Chapter  Google Scholar 

  • Zar, J. H., 1999. Biostatistical Analysis, 4th ed. Prentice Hall, Upper Saddle River.

    Google Scholar 

  • Zimmerman, M. S., C. C. Krueger & R. L. Eshenroder, 2006. Phenotypic diversity of lake trout in Great Slave Lake: differences in morphology, buoyancy, and habitat depth. Transactions of the American Fisheries Society 135: 1056–1067.

    Article  Google Scholar 

  • Zimmerman, M. S., C. C. Krueger & R. L. Eshenroder, 2007. Morphological and ecological differences between shallow- and deep-water lake trout in Lake Mistassini, Quebec. Journal of Great Lakes Research 33: 156–169.

    Article  Google Scholar 

  • Zimmerman, M. S., S. N. Schmidt, C. C. Krueger, M. J. Vander Zanden & R. L. Eshenroder, 2009. Ontogenetic niche shifts and resource partitioning of lake trout morphotypes. Canadian Journal of Fisheries and Aquatic Sciences 66: 1007–1018.

    Article  Google Scholar 

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Acknowledgments

Steve Ellis (Wildlife, Lands, and Environment Department of the Lutsel K’e Dene First Nation) and George Low (CDFO) helped us secure fish collection permits. Sam Boucher (Lutsel K’e, Northwest Territories), Shawn Buckley, Kelley Thompson, Stephanie Vaillancourt (Hay River, Northwest Territories), Peter Cott (Department of Fisheries & Oceans–Canada), Randy Eshenroder, Scott Miehls, Christopher Goddard (Great Lakes Fishery Commission) assisted with field work. Golder Associates (Yellowknife, Northwest Territories) assisted with logistical support and equipment. Julie Nieland and Zachary Beard (University of Wisconsin–Stevens Point) assisted with otolith processing. The Fishery Research Program of the Great Lakes Fishery Commission provided funding. Use of trade, product, or firm names is for descriptive purposes and does not imply endorsement by the U.S. Government. This article is Contribution 1984 of the U.S. Geological Survey, Great Lakes Science Center.

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  1. U.S. Geological Survey, Great Lakes Science Center, Hammond Bay Biological Station, 11188 Ray Road, Millersburg, MI, 49759, USA

    Michael J. Hansen

  2. Center for Systems Integration and Sustainability, Michigan State University, 1405 South Harrison Road, 115 Manly Miles Building, East Lansing, MI, 48823, USA

    Nancy A. Nate, Louise Chavarie & Charles C. Krueger

  3. Great Lakes Fishery Commission, 2100 Commonwealth Boulevard, Suite 100, Ann Arbor, MI, 48105, USA

    Andrew M. Muir

  4. Science Division, Wild Salmonid Production Evaluation Unit, Washington Department of Fish and Wildlife, Fish Program, 1111 Washington Street Southeast, Olympia, WA, 98501, USA

    Mara S. Zimmerman

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  1. Michael J. Hansen
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Correspondence to Michael J. Hansen.

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Guest editors: M. Power, R. Knudsen, C. Adams, M. J. Hansen, J. B. Dempson, M. Jobling & M. Ferguson / Advances in Charr Ecology and Evolution

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Hansen, M.J., Nate, N.A., Chavarie, L. et al. Life history differences between fat and lean morphs of lake charr (Salvelinus namaycush) in Great Slave Lake, Northwest Territories, Canada. Hydrobiologia 783, 21–35 (2016). https://doi.org/10.1007/s10750-015-2633-2

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  • DOI: https://doi.org/10.1007/s10750-015-2633-2

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