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

Lake Chubsucker (Erimyzon sucetta)


Overview

Overview

Lake Chubsucker (Erimyzon sucetta), a fish listed as Special Concern, prefers moderately clear lakes, oxbow lakes, sloughs of weedy lakes and their associated marshy streams dense with organic debris over bottoms of cobble, sand, boulders, mud or silt. Spawning occurs from mid May through early July.

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 Lake Chubsucker (Erimyzon sucetta). 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 Erimyzon sucetta in the Natural Heritage Inventory Database as of July 2015.
Summary Information
State StatusSC/N
Federal Status in Wisconsinnone
State RankS3
Global RankG5
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


Lake Chubsucker

Side view of a breeder: The head shows 3 large tubercles, the anal fin is sickle-shaped with many smaller tubercles.

Photo by John Lyons, WDNR.

Lake Chubsucker

The body depth is more than 30% of SL; there are usually 35-37 lateral scales and a posteriorly placed anal fin.

Photo by John Lyons, WDNR.

Lake Chubsucker

Alternate top view showing "saddles" on the back which are partially confluent with blotches on the sides.

Photo by John Lyons, WDNR.

Lake Chubsucker

Side view of young-of-year: They are similar to adults except for their more pronounced lateral stripe.

Photo by John Lyons, WDNR.

Lake Chubsucker

Close-up anal fin of a breeder: The anal fin is sickle-shaped with many smaller tubercles.

Photo by John Lyons, WDNR.

Lake Chubsucker

Close-up head of a breeder: Notice the 3 large tubercles on the snout.

Photo by John Lyons, WDNR.

Lake Chubsucker

Close-up of flank: Notice the absence of pored lateral line scales.

Photo by John Lyons, WDNR.

Lake Chubsucker

Close-up of dorsal fin: There are usually 11-12 dorsal rays.

Photo by John Lyons, WDNR.

Lake Chubsucker

Close-up of mouth/snout: The lower lip is fleshy.

Photo by John Lyons, WDNR.

Lake Chubsucker

Close-up of head: The mouth is terminal.

Photo by John Lyons, WDNR.

Lake Chubsucker

Alternate side view of an adult.

Photo by John Lyons, WDNR.

Lake Chubsucker

Close-up mouth and snout.

Photo by John Lyons, WDNR.

Lake Chubsucker

Close-up pectoral fin.

Photo by John Lyons, WDNR.

Lake Chubsucker

Close-up dorsal fin.

Photo by John Lyons, WDNR.

Lake Chubsucker

Close-up pelvic fin.

Photo by John Lyons, WDNR.

Lake Chubsucker

Head-on view adult.

Photo by John Lyons, WDNR.

Lake Chubsucker

Bottom view adult.

Photo by John Lyons, WDNR.

Lake Chubsucker

Close-up anal fin.

Photo by John Lyons, WDNR.

Lake Chubsucker

Side view adult.

Photo by John Lyons, WDNR.

Lake Chubsucker

Side view adult.

Photo by John Lyons, WDNR.

Lake Chubsucker

Side view adult.

Photo by John Lyons, WDNR.

Lake Chubsucker

Top view adult.

Photo by John Lyons, WDNR.

Lake Chubsucker

Close-up flank.

Photo by John Lyons, WDNR.

Lake Chubsucker

Close-up head.

Photo by John Lyons, WDNR.

Lake Chubsucker

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 Lake Chubsucker. Only natural communities for which Lake Chubsucker 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.

Ecological landscape associations

The table below lists the ecological landscape association scores for Lake Chubsucker. 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 Lake Chubsucker occurring in each of Wisconsin's Ecological Landscapes.  Actual scores can be found in the table to the left.


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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: Tuesday, November 28, 2017