Animalia > Chordata > Actinopterygii > Salmoniformes > Salmonidae > Salvelinus > Salvelinus namaycush

Salvelinus namaycush (American lake char; American lake trout; Char; Great Lake trout; Grey trout; Lake trout; Namaycush; Togue; Touladi; Taque; Siscowet; Salmon trout; Mountain trout; Masamacush; Mackinaw trout; Landlocked salmon; Laker; Lake charr; Great Lakes trout; Great Lakes char; Omble)

Synonyms: Cristivomer namaycush; Cristovomer namayacush; Salmo amethystinus; Salmo amethystus; Salmo confinis; Salmo namaycush; Salmo pallidus
Language: Cree; Czech; Danish; Dutch; Finnish; French; German; Icelandic; Inuktitut; Italian; Mandarin Chinese; Norwegian; Nuuchahnulth; Portuguese; Russian; Salish; Serbian; Slovak; Spanish; Swedish

Wikipedia Abstract

Lake trout (Salvelinus namaycush) is a freshwater char living mainly in lakes in northern North America. Other names for it include mackinaw, lake char (or charr), touladi, togue, and grey trout. In Lake Superior, it can also be variously known as siscowet, paperbelly and lean. The lake trout is prized both as a game fish and as a food fish.
View Wikipedia Record: Salvelinus namaycush

Invasive Species

Salvelinus namaycush is a freshwater fish of the trout family, found primarily in lakes and large rivers worldwide. The distribution is broad due to the sport fishing industry and the demand for Salvelinus namaycush. In many of the introduced locations Salvelinus namaycush is an invasive species and reduces native biodiversity through competition and predation of endemic species. There have been some successful attempts to control Salvelinus namaycush using gillnetting and trapping.
View ISSG Record: Salvelinus namaycush


Adult Weight [3]  39.65 lbs (17.99 kg)
Female Maturity [2]  13 years 6 months
Male Maturity [3]  13 years
Diet [1]  Carnivore
Adult Length [2]  4.1 feet (125 cm)
Brood Dispersal [2]  Hidden
Brood Egg Substrate [2]  Lithophils (rock-gravel)
Brood Guarder [2]  No
Litter Size [2]  11,500
Maximum Longevity [2]  50 years
Water Biome [1]  Lakes and Ponds, Rivers and Streams


Name Countries Ecozone Biome Species Report Climate Land
Bonneville United States Nearctic Xeric Freshwaters and Endorheic Basins    
Cantabric Coast - Languedoc France, Spain Palearctic Temperate Coastal Rivers    
Central & Western Europe Austria, Belgium, Byelarus, Czech Republic, Denmark, France, Germany, Liechtenstein, Lithuania, Luxembourg, Netherlands, Poland, Russia, Slovakia, Switzerland, Ukraine, United Kingdom Palearctic Temperate Floodplain River and Wetlands    
Chesapeake Bay United States Nearctic Temperate Coastal Rivers    
Colorado Mexico, United States Nearctic Xeric Freshwaters and Endorheic Basins    
Columbia Glaciated Canada, United States Nearctic Temperate Upland Rivers    
Columbia Unglaciated United States Nearctic Temperate Floodplain River and Wetlands    
Cumberland United States Nearctic Temperate Upland Rivers    
Gulf of Venice Drainages Italy, San Marino, Slovenia, Switzerland Palearctic Temperate Coastal Rivers    
Lahontan United States Nearctic Xeric Freshwaters and Endorheic Basins    
Laurentian Great Lakes Canada, United States Nearctic Large Lakes    
Middle Missouri United States Nearctic Temperate Floodplain River and Wetlands    
Northeast US & Southeast Canada Atlantic Drainages Canada, United States Nearctic Temperate Coastal Rivers    
Northern Baltic Drainages Denmark, Finland, Norway, Russia, Sweden Palearctic Polar Freshwaters    
Ozark Highlands United States Nearctic Temperate Upland Rivers    
Sacramento - San Joaquin United States Nearctic Temperate Coastal Rivers    
Upper Mississippi United States Nearctic Temperate Floodplain River and Wetlands    
Upper Missouri Canada, United States Nearctic Temperate Upland Rivers    
Upper Snake United States Nearctic Temperate Upland Rivers    
US Southern Plains United States Nearctic Temperate Upland Rivers    

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Acadia National Park II 35996 Maine, United States
Algonquin Provincial Park IV 1868802 Ontario, Canada
Arctic National Wildlife Refuge Ib 12402936 Alaska, United States
Aulavik National Park II 3021211 Northwest Territories, Canada
Banff National Park II 1690912 Alberta, Canada
Bighorn Canyon National Recreation Area V 36286 Montana, Wyoming, United States
Champlain-Adirondack Biosphere Reserve 9859505 New York, Vermont, United States  
Fathom Five National Marine Park II   Ontario, Canada
Greenwater Provincial Park II 11019 Ontario, Canada
Ivvavik National Park II 2382752 Yukon, Canada
Jasper National Park II 2776809 Alberta, Canada
Kluane National Park and Reserve National Park Reserve II 5463436 Yukon, Canada
La Mauricie National Park II 131706 Quebec, Canada
Los Glaciares National Park II 1329020 Santa Cruz, Argentina
Mount Arrowsmith Biosphere Reserve 293047 British Columbia, Canada  
Nahanni National Park Reserve II 1309627 Northwest Territories, Canada
Niagara Escarpment Biosphere Reserve 470167 Ontario, Canada  
North Temperate Lakes LTER Site Long Term Ecological Research   Wisconsin, United States
Pictured Rocks National Lakeshore II 67888 Michigan, United States
Prince Albert National Park II 976762 Saskatchewan, Canada
Pukaskwa National Park II 459860 Ontario, Canada
Queen Maud Gulf Bird Sanctuary Migratory Bird Sanctuary IV 15335601 Nunavut, Canada
Riding Mountain Biosphere Reserve II 762028 Manitoba, Canada
Saint Croix International Historic Site   Maine, United States
Saint Lawrence Islands National Park II   Ontario, Canada
Sleeping Bear Dunes National Lakeshore II 62563 Michigan, United States
Tuktut Nogait National Park II 5761538 Northwest Territories, Canada
Ukkusiksalik National Park II   Nunavut, Canada
Voyageurs National Park II 177960 Minnesota, United States
Vuntut National Park II 1076795 Yukon, Canada
Waterton Biosphere Reserve II 121459 Alberta, Canada
Wood Buffalo National Park II 11038545 Alberta, Canada
Wrangell-St. Elias National Park and Preserve Ib 2476446 Alaska, United States
Yellowstone Biosphere Reserve II 2196863 Idaho, Montana, Wyoming, United States
Yoho National Park II 317576 British Columbia, Canada


Prey / Diet

Alosa pseudoharengus (kyack)[4]
Catostomus catostomus (Longnose sucker)[5]
Coregonus hoyi (Bloater)[4]
Cottus cognatus (Anadyr sculpin)[4]
Myoxocephalus quadricornis (Alaska fourhorn sculpin)[4]
Myoxocephalus thompsonii (Deepwater sculpin)[5]
Neogobius melanostomus (Round goby)[4]
Notropis atherinoides (Common emerald shiner)[5]
Osmerus eperlanus (European smelt)[5]
Osmerus mordax (Rainbow smelt)[4]
Paramysis kessleri[5]
Perca flavescens (Yellow perch)[4]
Percopsis omiscomaycus (Trout-perch)[5]
Pungitius pungitius (Ninespine stickleback)[5]
Salvelinus confluentus (Bull Trout)[5]
Salvelinus namaycush (American lake char)[5]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Esox lucius (Jack)1
Gavia pacifica (Pacific Loon)1
Lota lota (Thin-tailed burbot)7
Micropterus dolomieu (Smallmouth bass)7
Oncorhynchus kisutch (coho salmon or silver salmon)7
Oncorhynchus mykiss (redband trout)7
Oncorhynchus tshawytscha (chinook salmon or king salmon)7
Phalacrocorax auritus (Double-crested Cormorant)2
Phocoena phocoena (Harbor Porpoise)2
Salmo trutta (Brown trout)7
Sander vitreus (Walleye)7
Squalus acanthias (Common spiny)1
Sterna forsteri (Forster's Tern)1
Thymallus arcticus (Arctic grayling)1


Haliaeetus leucocephalus (Bald Eagle)[5]
Ichthyomyzon unicuspis (Silver lamprey)[5]
Lethenteron camtschaticum (Arctic lamprey)[5]
Petromyzon marinus[4]
Prosopium cylindraceum (Round whitefish)[5]
Salvelinus namaycush (American lake char)[5]


Parasitized by 
Acanthocephalus dirus[6]
Acanthocephalus tumescens[6]
Azygia angusticauda[6]
Azygia longa[6]
Bothrimonus sturionis[6]
Bothriocephalus cuspidatus[6]
Brachyphallus crenatus[6]
Bunodera luciopercae[6]
Capillaria salvelini <Unverified Name>[6]
Crepidostomum cooperi[6]
Crepidostomum farionis[6]
Crepidostomum metoecus[6]
Cyathocephalus truncatus[6]
Cystidicola cristivomeri <Unverified Name>[6]
Cystidicola farionis <Unverified Name>[6]
Cystidicola stigmatura <Unverified Name>[6]
Cystidicoloides tenuissima <Unverified Name>[6]
Dibothriocephalus dendriticus[6]
Dibothriocephalus ditremus[6]
Diphyllobothrium plerocercoid <Unverified Name>[6]
Diplostomum baeri[6]
Diplostomum spathaceum[6]
Discocotyle sagittata[6]
Echinorhynchus gadi[6]
Echinorhynchus lateralis[6]
Echinorhynchus leidyi[6]
Echinorhynchus salmonis[6]
Eubothrium crassum[6]
Eubothrium salvelini[6]
Glaridacris catostomi <Unverified Name>[6]
Gyrodactylus colemanensis[6]
Leptorhynchoides thecatus[6]
Metabronema salvelini <Unverified Name>[6]
Neoechinorhynchus rutili[6]
Neoechinorhynchus salmonis[6]
Petromyzon marinus (Eel sucker)[4]
Philonema agubernaculum <Unverified Name>[6]
Phyllodistomum limnosa <Unverified Name>[6]
Phyllodistomum umblae[6]
Pomphorhynchus bulbocolli[6]
Proteocephalus arcticus <Unverified Name>[6]
Proteocephalus neglectus <Unverified Name>[6]
Proteocephalus parallacticus <Unverified Name>[6]
Proteocephalus salvelini <Unverified Name>[6]
Proteocephalus tumidocollus <Unverified Name>[6]
Raphidascaris acus <Unverified Name>[6]
Schistocephalus solidus[6]
Spinitectus gracilis <Unverified Name>[6]
Sterliadochona ephemeridarum <Unverified Name>[6]
Tetracotyle intermedia <Unverified Name>[6]
Tetraonchus monenteron[6]
Triaenophorus crassus[6]
Triaenophorus nodulosus[6]
Truttaedacnitis truttae <Unverified Name>[6]

Institutions (Zoos, etc.)

Institution Infraspecies / Breed 
Biodome de Montreal
ECHO Lake Aquarium & Science Center
Minnesota Zoological Garden
Natural History Museum of Adirondacks

Range Map

Alaska (USA); America, North - Inland waters; America, South - Inland waters; Antarctica - Inland waters; Argentina; Asia - Inland waters; Australian; Bolivia; Canada; Czech Republic; Denmark; Europe - Inland waters; Finland; France; Germany, Fed. Rep.; Great Lakes; Italy; Japan; Kerguelen Islands; Mackenzie; Nearctic; Nelson-Saskatchewan; Neotropical; New Zealand; North America: Widely distributed from northern Canada and Alaska south to New England in USA and Great Lakes basin in Canada-USA. Introduced widely to many areas outside its native range. Splakes (hybrid between <i>Salvelinus namaycush</i> and <i>Salv; North America: Widely distributed from northern Canada and Alaska south to New England in USA and Great Lakes basin in Canada-USA. Introduced widely to many areas outside its native range. Splakes (hybrid between <i>Salvelinus namaycush</i> and <i>Salvelinus fontinalis</i>) have also been successfully introduced to many areas of North America. The three observed phenotypes existing in Lake Superior (lean, siscowet and humper or paperbelly) are under some genetic control and not merely expressions of environmental adaptation (Ref. 40529).; Norway; Oceania - Inland waters; Palearctic; Peru; Slovakia; Sweden; Switzerland; USA (contiguous states); United Kingdom; Yukon;



Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2Frimpong, E.A., and P. L. Angermeier. 2009. FishTraits: a database of ecological and life-history traits of freshwater fishes of the United States. Fisheries 34:487-495.
3de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
4NOAA, Great Lakes Environmental Research Laboratory
5Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
6Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access