SUBJECT INDEX 



849 



effect of thermal effluents on, 

 392 

 Nitrification, effect of arsenic on, 



290 

 Nitrobacter sp., effect of arsenic 



on, 290 

 Nitrosomonas sp., effect of arsenic 



on, 290 

 Notropis cornutus, effect of 



chlorine on, 826 

 Nutrient availability, effects on 



ecosystem stability, 102 



Odonata, effect of multistressors 



on, 7 53 

 Oligochaeta 

 See also specific genera 

 effect of acid mine drainage on, 



197 

 effect of multistressors on, 753 

 effect of thermal effluents on, 

 569, 582 

 OligopUtes saiinis, effect of thermal 



effluents on, 658 

 Oogenesis {see Reproduction) 

 Opsanus beta, effect of thermal 



effluents on, 648 

 Optioserviis sp., effect of coal- 

 mine drainage on, 180 

 Ordination, of multistressed macro- 

 invertebrate communities in 

 river, 748 

 Ostracoda, effect of acid mine 



drainage on, 197 

 Ostrea edulis, effect of thermal 

 effluents on body condition of, 

 492 

 Oxygen consumption 

 of entrained cladocera, 813 

 of nutrient- and energy- 

 subsidized microcosms, 109 

 of protozoa exposed to coal- 

 conversion gasifier condensate, 

 204 

 in relation to ammonia excretion 

 in thermally stressed molluscs, 

 484 

 of thermally stressed microcosms, 

 107 

 Oysters {see Crassostrea gigas; 

 Pelecypoda) 



Palaemonetes spp., effect of 



thermal effluents on, 648 

 Par Pond, thermal studies in, 342, 



498 

 Parasitism, effect on crab 



distribution, 120 

 Particulate matter, in nutrient- and 



energy -subsidized microcosms, 



109 

 Pathogenic fungi, 663 

 Pelecypoda 



See also specific genera 



accumulation of copper in, 301 



effect of acid mine drainage on, 

 197 



effect of thermal effluents on, 

 484, 577 



sensitivity to copper in, 301 



Penaeiis spp., effect of thermal 

 effluents on, 644, 648 



Peridinium spp. 



effect of thermal effluents on, 



397, 609, 636 

 effect of thermal effluents and 



chlorine on, 397 



Periphyton, effect of thermal ef- 

 fluents on, 580 



Phenolic compounds 

 effect of, on protozoa, 204 

 released from coal-conversion 

 products, 167, 204 



Phenyl mercuric acetate, uptake 

 by amphipods, 27 3 



Phosphorus, concentration in 

 nutrient- and energy -subsidized 

 microcosms, 109 

 Physa sp. 



effect of multistressors on, 753, 



762 

 effect of thermal effluents on, 

 753, 762 

 Physiochemical stress, 120 

 Phytoplankton 



effect of thermal effluents on, 



364, 381, 392, 597, 624 

 effects of thermal effluents and 



chlorine on, 392 

 model of abundance in, 19 

 nitrate reductase activity in, 392 

 primary productivity of, under 

 environmental stress, 392 



