Animalia > Chordata > Actinopterygii > Salmoniformes > Salmonidae > Coregonus > Coregonus zenithicus

Coregonus zenithicus (Longjaw cisco; Light-back tullibee; Lake Superior longjaw; Shortjaw cisco; Shortjaw chub; Pale-back tullibee)

Synonyms: Argyrosomus zenithicus; Leucichthys entomophagus; Leucichthys zenithicus
Language: Danish; French; Mandarin Chinese

Wikipedia Abstract

The shortjaw cisco (Coregonus zenithicus) is a North-American freshwater whitefish in the salmon family. Adult fish range to about 30 cm (12 in) in length and are silver, tinged with green above and paler below. One of the members of the broader Coregonus artedi complex of ciscoes, it is distributed widely in the deeper lakes of Canada, but populations in the Great Lakes have been declining and it is no longer present in Lakes Michigan, Huron, and Erie. It feeds mainly on crustaceans and insect larvae and spawns in the autumn on the lake bed. It is part of the important cisco (chub) fishery in the Great Lakes. The International Union for Conservation of Nature has rated its conservation status as "vulnerable". Shortjaw cisco have however evolved from the cisco Coregonus artedi independentl
View Wikipedia Record: Coregonus zenithicus


Female Maturity [1]  4 years
Diet [2]  Carnivore
Adult Length [1]  15 inches (37 cm)
Brood Dispersal [1]  In the open
Brood Egg Substrate [1]  Litho-pelagophils
Brood Guarder [1]  No
Litter Size [1]  19,000
Maximum Longevity [1]  11 years

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Algonquin Provincial Park IV 1868802 Ontario, Canada
Isle Royale Biosphere Reserve Ib 571799 Michigan, United States
Niagara Escarpment Biosphere Reserve 470167 Ontario, Canada  
Wood Buffalo National Park II 11038545 Alberta, Canada

Prey / Diet

Mysis relicta (opossum shrimp)[3]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Alosa pseudoharengus (kyack)1
Coregonus hoyi (Bloater)1
Cottus cognatus (Anadyr sculpin)1
Myoxocephalus quadricornis (Alaska fourhorn sculpin)1
Osmerus eperlanus (European smelt)1
Osmerus mordax (Rainbow smelt)1
Perca flavescens (Yellow perch)1


Parasitized by 
Cyathocephalus truncatus[4]
Proteocephalus exiguus[4]
Proteocephalus longicollis[4]

Range Map

America, North - Inland waters; Canada; Great Lakes; Mackenzie; Nearctic; North America: Great Slave Lake in Northwest Territories, Canada southeast through Hudson Bay and Great Lakes basin (except Lakes Ontario and Erie). Declining in Lakes Superior and Nipigon. Uncommon outside Great Lakes basin (Ref. 5723).; USA (contiguous states);



Attributes / relations provided by
1Frimpong, 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.
2Myers, 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
3Status of the shortjaw cisco (Coregonus zenithicus) in Lake Superior, Michael H. Hoff & Thomas N. Todd, Ann. Zool. Fennici 41: 147–154 (2004)
4Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
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Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access