abundant fathead minnows were captured. All substrate of the pools was silt dominated with some 

 embedded gravel in the run upstream. The surrounding vegetation was dominated bv Scirpus sp. (rushes) 

 and Ek'ocharis palusiris. common spikerush. Aquatic vegetation and overhanging banks pro\ ided the 

 most significant stream habitat in this stream reach, livestock use index (LAI) was moderate uith -12 

 cow pies counted on a 50 m walk of the left & right banks. Pugging and hummocking was especially 

 noticeable below the lower pool area where the cows have a stream crossing. 



Reach Riparian Ranking: BLM= 75% (18 of 24) EPA RBP= 75% (150 of 200) 



Reach Riparian (;comorpholog>': The geomorphology of this stream reach is a Rosgcn F-6 with a 

 gentle slope (-- 1 " o). nuidcrate sinuosity, a ritllc-pool conllguration \\ ith silt-dominated runs and pools. 

 Pools are slightly incised and averaged -25 cm in depth, wetted width of the reach averaged Im. 

 Surrounding bank materials are coarser tlian the channel bed materials indicating an accumulation of 

 sediments in the reach. 



.\mphibian Community : 5 adult Northern Leopard Frog (NLF) present. 



Fish Community : I fish species was seined in the pool, none in the run. Only species was the fathead 

 minnow, lixpected fish for this stream type (D005 trending toward L005) have been met. 



Fish Community Quality: IBI= 48.08 0/E= 1/1 .4 or 71% of the expected reference fish. 



Macroinvertebrate Community: This community of intemiittent prairie stream invertebrates consists 

 of the Prairie Pool assemblage (#12, Stagliano 2005). The community indicator species are characterized 

 b\ tolerant, damselflv taxa, Coemigrion tjuillasima sp. Eiuilla^imi civile. LcMcs ami Ishnura. the 

 crustaceans (HyalelUi ami Gummunis). many genera and species of the water boatman (Corixidae; 

 Sinani alternate. Trichocorixa nais. ami Corisella). the snails (Phv.sella. (Jyraulus. ami Slagnicola). 

 maytlies (Caenis and Callibaelis). and beetles (Oreodytes. Laccophilus. Hydroporus and Hygrolus). 

 As the complexity of the pool habitat decreases the dinger habitat species are lost, such as the 

 damseinies and many of the water boatman taxa. Only 60% of the indicator species were present in this 

 sample for a D005 stream type indicating slight impairment. The Montana MMI ranks the community as 

 slightly impaired as well. 



.Macroinvertebrate Community Quality: MT MMI= 34.9 0/E= 60% of expected 

 macroinvertebrates 



50 



