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Contact information
For information on Wisconsin's rare animals, contact:
Rich Staffen
Conservation Biologist
608-266-4340

Shortjaw Cisco (Coregonus zenithicus)


Overview

Overview

Shortjaw Cisco (Coregonus zenithicus), a fish listed as Special Concern, prefers large lakes along all shores, ranging between 18-163m in depth. In Wisconsin it has only been found in Lake Superior. Spawning time is quite variable. Spawning populations have been observed in May, August, and December.

State status

Status and Natural Heritage Inventory documented occurrences in Wisconsin

The table below provides information about the protected status - both state and federal - and the rank (S and G Ranks) for Shortjaw Cisco (Coregonus zenithicus). See the Working List Key for more information about abbreviations. Counties shaded blue have documented occurrences for this species in the Wisconsin Natural Heritage Inventory database. The map is provided as a general reference of where occurrences of this species meet NHI data standards and is not meant as a comprehensive map of all observations.

Note: Species recently added to the NHI Working List may temporarily have blank occurrence maps.


Documented locations of Coregonus zenithicus in the Natural Heritage Inventory Database as of July 2015.
Summary Information
State StatusSC/H
Federal Status in WisconsinSOC
State RankS1
Global RankG3
Tracked by NHIY
WWAP SGCN

Species guidance


A guidance document is not available at this time. Use the information from the other tabs and contact local biologists, as needed, to develop management and avoidance strategies.

Photos/Video

Photos


Shortjaw Cisco

The mouth is terminal and blunt, the lower jaw usually longer (rarely equal) than the upper; the snout is angled and moderately pigmented; the eye diameter is 30-40% of the head depth through the middle of the eye.

Photo by John Lyons, WDNR.

Shortjaw Cisco

The species is moderately deep bodied, the deepest part is anterior to the dorsal origin; the belly is moderately rounded.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Close-up pelvic fins: The pelvic fin length is short to medium and lacks pigment.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Close-up gill rakers: There are 35-44 (usually 38-42) short gill rakers.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Close-up underside of head: The chin is moderately pigmented.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Head-on view: The body is relatively oval in cross section.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Alternate view of mouth and snout of a Wisconsin specimen.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Alternate view of pelvic fins of a Wisconsin specimen.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Alternate side view of an adult (overexposed photo).

Photo by John Lyons, WDNR.

Shortjaw Cisco

Close-up caudal region: There is an adipose fin.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Alternate side view of a Wisconsin specimen.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Alternate side view of a Wisconsin specimen.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Close-up mouth and snout.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Close-up pectoral fin.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Close-up dorsal fin.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Close-up pelvic fin.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Head-on view adult.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Bottom view adult.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Close-up anal fin.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Side view adult.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Side view adult.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Side view adult.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Top view adult.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Close-up flank.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Close-up head.

Photo by John Lyons, WDNR.

Shortjaw Cisco

Close-up tail.

Photo by John Lyons, WDNR.


Wildlife Action Plan

Wisconsin Wildlife Action Plan graphic

Natural community (habitat) associations

The table below lists the natural communities that are associated with Shortjaw Cisco. Only natural communities for which Shortjaw Cisco is "high" (score=3) or "moderate" (score=2) associated are shown. See the key to association scores for complete definitions. Please see the Wildlife Action Plan to learn how this information was developed.

Natural community Score
Lake Superior 3

Ecological landscape associations

The table below lists the ecological landscape association scores for Shortjaw Cisco. The scores correspond to the map (3=High, 2=Moderate, 1=Low, 0=None). For more information, please see the Wildlife Action Plan.

This map shows the probability of Shortjaw Cisco occurring in each of Wisconsin's Ecological Landscapes.  Actual scores can be found in the table to the left.




Ecological landscape score
Superior Coastal Plain 3
North Central Forest 1

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Landscape-Community combinations of highest ecological priority*

Ecological priorities are the combinations of natural communities and ecological landscapes that provide Wisconsin's best opportunities to conserve important habitats for a given Species of Greatest Conservation Need. The 10 highest scoring combinations are considered ecological priorities and are listed below. More than 10 combinations are listed if multiple combinations tied for 10th place. For more information, please see the Wildlife Action Plan.


* Ecological priority score is a relative measure that is not meant for comparison between species. This score does not consider socio-economical factors that may dictate protection and/or management priorities differently than those determined solely by ecological analysis. Further, a low ecological priority score does not imply that management or preservation should not occur on a site if there are important reasons for doing so locally.

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Issues/threats and conservation actions

Conservation actions respond to issues or threats, which adversely affect species of greatest conservation need (SGCN) or their habitats. Besides actions such as restoring wetlands or planting resilient tree species in northern communities, research, surveys and monitoring are also among conservation actions described in the WWAP because lack of information can threaten our ability to successfully preserve and care for natural resources.

Threats/issues and conservations actions for rare animals

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Last revised: Thursday, May 04, 2017