410 



Fishery Bulletin 94(3). 1996 



mined by sampling near a drifter that had been 

 tracked. Dynamic height variations reveal informa- 

 tion about the longitudinal extent of the reversing 

 flows along the Hawaiian Ridge. Measurements from 

 CTD probes support the findings of studies that sug- 

 gest the existence of bands of fairly strong currents 

 that are immediately adjacent to the windward side 

 of the Hawaiian Ridge and that are flowing in opposite 

 directions (White, 1983; Mysak and Magaard, 1983). 

 Bower et al. 1 suggested that distribution of O. 

 bartramii paralarvae is not related to the position of 

 the Hawaiian Archipelago. The results presented 

 here confirm this and indicate that most paralarvae 

 captured during the five surveys were hatched at 

 least 10 kilometers from shore, so that spawning oc- 

 curs predominantly in oceanic waters. 



Acknowledgments 



I am grateful to Richard E. Young, Jed Hirota, Pierre 

 Flament, and Stewart Reid for their guidance and 

 assistance during this study. I thank Michael Seki 

 for providing specimens and staff of NMFS for pro- 

 viding drifter data. I appreciate reviews of this pa- 

 per by Earl Dawe, Paul Rodhouse, Marek Lipinski, 

 Roger Villanueva, George Jackson, and two anony- 

 mous reviewers. Support for this study was provided 

 by Hawaii Sea Grant under grant number NA89AA- 

 D-SG063 awarded to R. E. Young. Additional sup- 

 port was provided by a grant from the East-West 

 Center. This work is part of a Master's thesis sub- 

 mitted to the Department of Oceanography, Univer- 

 sity of Hawaii, December 1994. Research was con- 

 ducted as part of a 5-year cooperative fisheries pro- 

 gram between the University of Hawaii, Department 

 of Oceanography, and Hokkaido University (Japan), 

 Faculty of Fisheries. 



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