898 



Fishery Bulletin 9 7(4), 1999 



in environment and lifestyle which 

 must strongly select for anatomi- 

 cal, biochemical, and physiological 

 adaptations necessary to achieve 

 exceptionally high metabolic rates. 

 Such selection leads to high so- 

 matic and gonadal growth rates, 

 rapid digestion, and quick repay- 

 me|it of oxygen debts, all impor- 

 tant functions in these active pe- 

 lagic predators. 



Acknowledgments 



50 



1990 (/i=49) 



H 1* 



1991 (/i=76) 



M5 

 May 



16-31 

 May 



1-15 

 Jun 



16-30 

 Jun 



1-15 

 Jul 



16-31 

 Jul 



1-15 

 Aug 



16-31 

 Aug 



1-15 

 Sep 



The authors wish to thank the 

 staff of Centre Oceanografic de 

 les Balears (I.E.O.) and the crews 

 of FVs Es Form. Fiiria, Orion HI. 

 and Virgen del Carmen II for the 

 facilities provided, as well as col- 

 leagues who participated in sampling. Special thanks 

 are due to F. Doumenge (Institut Oceanographique 

 Monaco) and O. Bourgeois, G. Dewavrin, and E. 

 Poilpre (Pisciculture Marine Monaco S.A.M.) for col- 

 laboration during the validation experiment. Also, 

 R. L. Radtke (Hawaii Institute of Geophysics, Ha- 

 waii), J. Uchiyama (Southwest Fisheries Center 

 Honolulu Laboratory, Hawaii), and Z. Wang (Hawaii 

 Institute of Geophysics, Hawaii) helped us in the 

 initial steps of this study. J. M. Fortune and J. Biosca 

 (Institut de Ciencies del Mar, Barcelona) are thanked 

 for the SEM micrographs, and C. Rodgers for the 

 revision of the English version of the manuscript. 



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