Garvine, R.W. 1974. Dynamics of small scale oceanic 

 fronts. J. Phys. Oceanogr. 4:557-569. 



Developed a model explaining features of 

 fronts such as confrontation of lighter and 

 denser water, surface convergence, and re- 

 lated sinking motions. Presented a charac- 

 terization of fronts and frontal features 

 plus a description of their dynamics. 



KEY WORDS: fronts, density, convergence/dis- 

 continuity. 



Grandperrin, R. 1976. Structures trophiques aboutis- 

 sant aux thons de longue ligne dans Le Pacifique 

 Sud-ouest tropical. [In Fr . abstr . , Engl, summ.] 

 J. Rech. Oceanogr. l(2):43-48. 



Comparison of tuna food and standing crop of 

 zooplankton and nekton plus vertical distri- 

 bution of tuna and pelagic fauna. Tuna 

 feeding was limited to upper layers (0-450 m) 

 and to daytime. Concluded that trophic 

 structures leading to longline tuna in the 



southwest Pacific appeared to depend on sur- 

 face mechanisms. 



KEY WORDS: tuna, yellowfin, bigeye, tempera- 

 ture, depth, time of day, feeding. 



Green, R. 1967. Relation of the thermocline to success 

 of purse seining for tuna. Trans. Am. Fish. Soc . 



96:126-130. 



Compared rates of success of catch in the 

 eastern tropical Pacific in relation to the 

 thickness of the mixed layer and average 

 temperature gradient within the thermocline. 



Rates of success of purse seining were clear- 

 ly related to both thermocline depth and the 

 gradient within it. Also noted the relation 

 of an oxygen minimum and temperature in some 

 areas and proposed an influence on purse 

 seining success. 



KEY WORDS: thermocline, temperature, oxygen, 

 depth, catch. 



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