Number Page 



32 Bird Observations by Habitat Type Within the Control and 



Disturbed Areas at Tanana R i ver-Upstream 3-7 June, 1978. 



Numbers Indicate Minimum Individuals Known to Occur 



in Each Habitat Type 257 



33 Bird Observations by Habitat Type Within the Control and 



Disturbed Stations at West Fork Tolovana River 9-11 June, 



1978, Numbers Indicate Total Individuals Known to Occur 



in Each Habitat Type 258 



34 Two Way Coincidence Table Displaying a Hierarchial Clus- 



tering of Similar Sites and Similar Biotic Parameters . 260 



35 Selected Alaska Water Quality Standards 274 



36 Water Quality Parameters Measured at Gravel Removal Sites 



Which Exceeded Alaska Water Quality Standards 275 



37 Changes in Turbidity and Suspended Solids Between Sample 



Areas at Selected Study Sites 278 



38 Relative Change of Water Quality Parameters Between Up- 



stream and Downstream Sample Areas at Selected Study 



Sites 281 



39 Average Measured Values of Selected Water Quality Param- 



eters at Study Sites with Inundated Pits 283 



40 Interdisciplinary Rating of Cumulative Effect of Scraping, 



Using Various Indices of Change on Study Sites Visited 



from 1976 to 1978 338 



4! Interdisciplinary Rating of Effects of Pits on Associated 

 Floodplains at Selected Study Sites Visited from 1976 

 to 1978 Using Various Indices of Change 359 



A-l Vegetation Identified in the Text 386 



A-2 Mammals Identified in the Text 387 



A-3 Birds Identified in the Text 388 



A-4 Fish Species Reported and Caught or Observed in Major 

 Geographical Areas Represented by the Twenty-Five 

 Sites 390 



A-5 Aquatic Macro i nvertebrates Caught at Study Sites 



During 1976-1978 Field Sampling 392 



XXI 



