Coregonus artedi
Lake herring or Cisco

Key Characteristics

This salmon is elongate and nearly round in cross section. Its lower jaw projects slightly beyond the upper jaw and the upper jaw reaches to the front of the pupil. The number of gill rakes is generally the most reliable method for correct identification: 38-53 in Lake Superior, 40-43 in Lake Huron, and from 38-64 in inland lakes.

Status and Rank

  • State Status: T
  • State Rank: S3
  • Global Rank: G5

Occurrences

County NameNumber of OccurrencesYear Last Observed
Alcona32009
Alger112015
Allegan42006
Alpena41993
Antrim42006
Baraga42002
Barry42009
Benzie22006
Berrien11995
Branch11986
Cass52009
Charlevoix21995
Cheboygan32009
Chippewa162009
Crawford11987
Dickinson11986
Emmet11985
Gogebic62009
Grand Traverse32006
Hillsdale42009
Houghton102006
Huron31990
Iosco31998
Iron12006
Jackson22009
Kalamazoo11991
Kalkaska42006
Kent12006
Keweenaw162001
Leelanau32006
Livingston31991
Luce22006
Mackinac102006
Manistee21994
Marquette112009
Montmorency22006
Newaygo11984
Oakland72006
Ontonagon52009
Ottawa11997
Presque Isle42000
Roscommon11987
Schoolcraft42006
St. Joseph22011
Van Buren21995
Washtenaw62009
Distribution map for Coregonus artedi

Updated 1/31/2017. Information is summarized from MNFI's database of rare species and community occurrences. Data may not reflect true distribution since much of the state has not been thoroughly surveyed.

Habitat

Lake herring are found in deep inland lakes as well as the Great Lakes at depths ranging from 18 to 53 meters. They can be found in shallower depths (9-12 m) when spawning over rocky substrates.

Specific Habitat Needs

Deep water needed in Great Lake, Pelagic, Midwater

Natural Community Types

Methodology

For each species, lists of natural communities were derived from review of the nearly 6,500 element occurrences in the MNFI database, in addition to herbarium label data for some taxa. In most cases, at least one specimen record exists for each listed natural community. For certain taxa, especially poorly collected or extirpated species of prairie and savanna habitats, natural community lists were derived from inferences from collection sites and habitat preferences in immediately adjacent states (particularly Indiana and Illinois). Natural communities are not listed for those species documented only from altered or ruderal habitats in Michigan, especially for taxa that occur in a variety of habitats outside of the state.

Natural communities are not listed in order of frequency of occurrence, but are rather derived from the full set of natural communities, organized by Ecological Group. In many cases, the general habitat descriptions should provide greater clarity and direction to the surveyor. In future versions of the Rare Species Explorer, we hope to incorporate natural community fidelity ranks for each taxon.

Management

Exotic species, such as the alewife and sea lamprey, are major threats to lake herring. Eutrophication is the greatest threat to inland lake populations of lake herring. Local pollution also affects this species. Hence, exotic species and nutrient management are important to this species. In addition, the loss of food resources such as Diporeia, is an issue for this species.

Active Period

Migration from first week of April to first week of June

Spawning from fourth week of September to first week of December

Survey Methods

Sampling at this time should be directed to shallow areas.

Page Citation

Michigan Natural Features Inventory. 2007. Rare Species Explorer (Web Application). Available online at http://mnfi.anr.msu.edu/explorer [Accessed May 27, 2017]

More Information

See MNFI Species Abstract

References

Survey References

Technical References

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