Spring Branch IA 01-MAQ-49

Assessment Comments

Assessment is based on a 1999 summary of trout reproduction in Iowa streams prepared by the DNR Fisheries Bureau. See attached document for details.

Basis for Assessment

SUMMARY:  The Class B(CW) coldwater aquatic life uses remain assessed as "fully supported / threatened" (minor  impacts).   Fish consumption uses remain "not assessed."  EXPLANATION:  Based on the assessment developed for the 1998 report (above), and based on a summary of trout reproduction in Iowa streams prepared by the DNR Fisheries Bureau, the Class B(CW) uses remain assessed as "fully supported / threatened."  According to Moeller (1999), Spring Branch is in the category of Iowa trout streams with at least some level of documented trout reproduction but of unknown frequency; these streams are not generally capable of maintaining a viable trout population at this time.   Fish consumption uses remain "not assessed" due to lack of fish tissue monitoring in this stream reach.