234 



Fishery Bulletin 94(2), 1996 



cruitment overfishing is substantial for this stock. 

 Further, because growth appears to be nearly expo- 

 nential throughout its life cycle, the risk of growth 

 overfishing is also considerable. On the other hand, 

 harvesting impacts may be difficult to evaluate un- 

 less stock response to environmental variation, den- 

 sity-dependence in growth and survival, and com- 

 munity-level interactions with competitors and 

 predators are better understood. Owing to its short 

 lifespan, the immediate benefits of harvesting the 

 long-finned squid resource are probably best mea- 

 sured by average seasonal yield and its variance, and 

 an adaptive approach to management may be needed 

 to ensure sufficient spawning escapement and to fos- 

 ter efficient utilization of this resource. 



Acknowledgments 



We would like to thank the Captain and the crew of 

 the FV Huntress and scientists at the Rhode Island 

 Department of Environmental Management and the 

 National Marine Fisheries Service for their assis- 

 tance in sample collection. We also thank Frank 

 Almeida, Ann Durbin, Roger Hanlon, James 

 Weinberg, and two anonymous reviewers for their 

 constructive comments on an earlier draft of the 

 manuscript. This work was partially supported by 

 Grant NA89AA-D-SG082 from the National Marine 

 Fisheries Service of the National Oceanic and Atmo- 

 spheric Administration (NOAA) to the University of 

 Rhode Island Sea Grant College Program. 



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