265 



DRAFT 



fluvial bedload (large material). This material could have been accelerating the 

 erosional processes in the downstream agricultural reach. 



The report also attributes the cattle-related sedimentation and stream bank erosion to 

 the loss of pink and chum salmon populations: 



'This could help amlain the loss of native pink and chum salmon 

 populations in the lower reaches of coastal streams. ' (emphasis added) 



While we agree that sedimentation could have a role in the decline of Oregon's chum 

 salmon populations, this statement is inaccurate for pink salmon in Oregon. Pink 

 salmon are found in oceanic and coastal areas north of about 40° N latitude, and are 

 not indigenous and only rarely observed in coastal streams of Oregon. The 

 distributional range of this of this species is from approximately Skagit Bay, 

 Washington, northward (Emmett et. al. 1991). 



Chemical Use. Agriculture and Forestry (page 164): 



The authors again present information (in a table on page 164) comparing the "ratios" 

 of agriculture and forestry chemical use, only this time it is presented in the 

 "agriculture" section. As discussed previously, this information greatly underestimates 

 the use of chemicals on forest lands because it only includes chemicals applied on US 

 Forest Service lands. The Department refers the reader to our previous discussion of 

 this information. 



Page 165, Forestry 



General Comments 



There is no discussion of the effects of water temperature increases due to forest 

 practices, and very little discussion of the effects of timber harvest on the instream 

 supply of large woody debris. Significant amounts of scientific information exist for 

 these topics. 



Again, there is no mention of the results of the Alsea Watershed Study (Moring 1975a, 

 197Sb; Moring and Lantz 1975) or the Carnation Creek Study (Hartman and Scrivener 

 1990; Holtby 1988) in this discussion of forestry. 



'Logging slash. ..decreases dissolved oxygen demand. . . ' 

 Logging slash increases dissolved oxygen demand (not decreases, as stated). 



The first paragraph on page 174 discusses sedimentation but give no specifics as to the 

 relationships between forest practices and sedimentation, or sedimentation and salmonid 



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