McKenzie, M.K. [1964?]. The distribution of tuna in 

 relation to oceanographic conditions. N.Z. Ecol . 

 Soc. 11:6-10. 



Coastal areas of New Zealand and Australia 

 were compared with other fishing areas. 

 Greatest concentrations of fish occurred near 

 current convergences and upwellings where 

 there usually was abundant food. Thermocline 

 acted as a barrier to feed-fish. Water clar- 

 ity was important because of optical selec- 

 tivity in feeding by tunas. Discussed sea- 

 sonal changes in the position of convergences 

 formed from local current systems and de- 

 scribed local fishery's seasonality. 



KEY WORDS: tuna, yellowfin, skipjack, alba- 

 core, southern bluefin, currents, conver- 

 gence, temperature, thermocline, transparen- 

 cy, fronts, season, distribution, feed. 



Meehan, J.M. 1965. First occurrence of bigeye tuna on 

 the Oregon coast. Oreg. Res. Briefs ll(l):53-54. 



KEY WORDS: tuna, bigeye, temperature, range, 

 distribution . 



Merle, J., H. Rotschi , and B. Voituriez. 1969. Zonal 

 circulation in the tropical western South Pacific 

 at 170° E. Bull. Jpn . Soc. Fish. Oceanogr., Spec. 

 No., p. 91-97. 



Renamed the equatorial/tropical currents and 

 countercur rents . Discussed southern hemi- 

 sphere divergence, convergence and doming at 

 current boundaries and the impact on nutri- 

 ents and enrichment near the surface. 



KEY WORDS: currents, discontinuities, enrich- 

 ment . 



54 



