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Fish and Aquatic Life
Overview
The Little Rib River is a twenty-two mile warm water stream that flows into the Big Rib River west of the City of Wausau. The lower portion of the Little Rib River is classified as a warm water sport fishery while the upper portion is classified as a warm water forage fishery.
The lower portion habitat had extensive bank erosion and lacked coarse substrate. Limiting factors of in-stream habitat for the upper portion include, lack of fish cover, bank erosion, and sedimentation.
The lower IBI scores were a result of low number of top carnivore and sucker species. The lower reach had sport fish present likely a result of migration from the Big Rib River. No sport fish were found in the upper reach, therefore it is proposed to stay at a Warm Water Forage Fishery classification.
Fishery surveys were completed at four sites that were previously studied in 1975 and 1981. Fewer trout or no trout were found in 2001 when compared to the earlier years. Decreased trout densities in 2001 may be the result of changes in stream habitat or water temperatures. According to 1981 observations, substrate was comprised of coarse materials. The 2001 habitat surveys indicated that in-stream habitat was limited by sedimentation and lack of cover. Water temperatures may have also resulted in fewer trout collected in 2001. These surveys were completed in August, while the historic studies were conducted in May. Although trout may inhabit these areas when water temperatures are favorable, they would more often migrate to areas where water temperatures are suitable.
Date 2002
Author Aquatic Biologist
Historical Description
The Little Rib River is a warm water game and forage fishery. Rough fish are common to abundant. The stream suffers from heavy flooding and streambank erosion and elevated levels of bacteria and nutrients occur in the stream after rainstorms. Animal waste is the suspected source. Streambank pasturing also occurs.
Date 1991
Author Aquatic Biologist
General Condition
Little Rib River (1451900) was assessed during the 2016 listing cycle; total phosphorus and biological (macroinvertebrate and fish Index of Biotic Integrity (IBI) scores) sample data were clearly below 2016 WisCALM listing thresholds for the Fish and Aquatic Life use. This water is meeting this designated use and is not considered impaired.
Date 2015
Author Ashley Beranek
Condition
Wisconsin has over 84,000 miles of streams, 15,000 lakes and milllions of acres of wetlands. Assessing the condition of this vast amount of water is challenging. The state's water monitoring program uses a media-based, cross-program approach to analyze water condition. An updated monitoring strategy (2015-2020) is now available. Compliance with Clean Water Act fishable, swimmable standards are located in the Executive Summary of Water Condition in 2018. See also the 'monitoring and projects' tab.
Reports
Recommendations
Citizen-Based Stream Monitoring
Collect chemical, physical, and/or biological water quality data to assess the current overall stream health. The data can inform management decisions and may be used to identify impaired waters for biennial lists.
Management Goals
Wisconsin's Water Quality Standards provide qualitative and quantitative goals for waters that are protective of Fishable, Swimmable conditions [Learn more]. Waters that do not meet water quality standards are considered impaired and restoration actions are planned and carried out until the water is once again fishable and swimmable
Management goals can include creation or implementation of a Total Maximum Daily Load analysis, a Nine Key Element Plan, or other restoration work, education and outreach and more. If specific recommendations exist for this water, they will be displayed below online.
Monitoring
Monitoring the condition of a river, stream, or lake includes gathering physical, chemical, biological, and habitat data. Comprehensive studies often gather all these parameters in great detail, while lighter assessment events will involve sampling physical, chemical and biological data such as macroinvertebrates. Aquatic macroinvertebrates and fish communities integrate watershed or catchment condition, providing great insight into overall ecosystem health. Chemical and habitat parameters tell researchers more about human induced problems including contaminated runoff, point source dischargers, or habitat issues that foster or limit the potential of aquatic communities to thrive in a given area. Wisconsin's Water Monitoring Strategy was recenty updated.
Grants and Management Projects
Monitoring Projects
| WBIC | Official Waterbody Name | Station ID | Station Name | Earliest Fieldwork Date | Latest Fieldwork Date | View Station | View Data |
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Watershed Characteristics
Little Rib River is located in the watershed which is mi². This watershed has stream miles, lake acres and wetland acres.
Nonpoint Source Characteristics
This watershed is ranked Unknown for runoff impacts on streams, Unknown for runoff impacts on lakes and Unknown for runoff impacts on groundwater and therefore has an overall rank of Unknown. This value can be used in ranking the watershed or individual waterbodies for grant funding under state and county programs.However, all waters are affected by diffuse pollutant sources regardless of initial water quality. Applications for specific runoff projects under state or county grant programs may be pursued. For more information, go to surface water program grants.