Mullus barbatus — see Red mullet 

 Mytilus edulis — see Sea mussels 



Nematodes 



infestation of ovaries 



skipjack tuna, S 580 



Nemipterus japonicus — see Red Sea bream 



New England 



offshore northern lobsters, S 598 



Nichevo — see Vessels 



Ninespine stickleback 

 Green Bay 



bottom trawl explorations, 1963-65, C 297 



Katmai National Monument, Alaska, S 590 

 Lake Superior 



bottom trawl explorations, 1963-65, C 294 

 northern Lake Michigan 



bottom trawl explorations, 1963-65, C 318 



Northern lobsters 



offshore southern New England 



size composition, sex ratio, and size at maturity, 

 S 598 



Northern pike 

 Green Bay 



bottom trawl explorations, 1963-65, C 297 

 Katmai National Monument, Alaska, S 590 

 northern Lake Michigan 



bottom trawl explorations, 1963-65, C 318 



Northern squawfish 



electrical installation for control of 



electrical conditions, S 583 



electrode array and traps, S 583 



electronic equipment, S 583 



energizing array, S 583 



power source, S 583 



testing effectiveness, S 583 

 physical quality of water, S 583 



Notropis hudsonius — see Spottail shiner 



Ocean quahogs 



opening, using microwave energy, FIR v. 4 no. 7, 

 p. 247 

 Oceanographer Canyon 



northern offshore lobsters, S 598 



Henry O'Malley — see Vessels 

 Oiicorhynchus gorbtischa — see Pink salmon 

 Oneorhynchus keta — see Chum salmon 



Oncorhynchus kisutch — see Coho salmon 



Oneorhynchus masou — see Masu salmon 



Oncorhynehus nerka — see Sockeye salmon 



Oncorhynchus tshawytseha — see Chinook salmon 



Orca — see Vessels 



Oregon — see Vessels 



Osmerus dentex — see Arctic smelt 



Osmerus mordax — see Smelt 



Oxford, Maryland, C 324 



Oysters 



opening, using microwave energy 



analyses of operating costs, FIR v. 4 no. 7, p. 246 

 batch processing, FIR v. 4 no. 7, p. 242 

 continuous processing, FIR v. 4 no. 7, p. 244 



Pacific cod 



Katmai National Monument, Alaska, S 590 

 Pacific Ocean 



trade wind zone of central north 



meridional dissolved oxygen distribution, 



1964-65, C 323 

 meridional salinity distribution, 1964-65, C 323 

 meridional temperature distributions, 1964-65, 

 C 323 



Pacific sailfish 



central Pacific Ocean, C 311 



Pacific staghorn sculpin 



Katmai National Monument, Alaska, S 590 



Pandalus boreaUs — see Pink shrimp 



Pandabis danae — see Dock shrimp 



Pandalus platyceros — see Spot shrimp 



Paralithodes camtschatica — see King crab 



Pascagoula, Mississippi, C 327 



Pecten gibbus — see Calico scallop 



Pecten species — see Bay scallop 



Pend Oreille River, British Columbia, D 39 



Perca flavescens — see Yellow perch 



Perch — see Yellow perch 



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