NOTE Markaida et al : Tagging studies on Dosidicus gigas 



225 



cidate migrations over these longer distances using 

 conventional tag-and-recapture approaches. 



Presumably, as the largest eunektonic squid, jumbo 

 squid should be able to perform large-scale migrations 

 covering its whole geographic range as do other om- 

 mastrephids (O'Dor, 1988). The high tag return rates 

 achieved in the present study, in conjunction with the 

 large size of the squid, make application of a variety of 

 archival electronic tagging devices an attractive pos- 

 sibility. Such devices could reveal long-distance migra- 

 tions across the large range of jumbo squid in a fishery- 

 independent manner. 



Acknowledgments 



We acknowledge funding for this project by the Tagging 

 of Pacific Pelagics (TOPP) program and the Census of 

 Marine Life (COML). We thank Oscar Sosa-Nishizaki 

 (CICESE, Ensenada) for administering this project 

 in Mexico and providing laboratory space and facili- 

 ties. Volunteer field workers in Sta. Rosalia included A. 

 Novakovic, J. Schulz, S. Sethi (Stanford Univ.), and L. 

 Roberson (California State University, Northridge). We 

 are also indebted to personnel of Centro Regional de 

 Investigacion Pesquera, especially Manuel O. Nevarez, 

 Paco Mendez, and Araceli Ramos, for their support 

 during tagging and tag recovering at Guaymas, and 

 to Sandra Patricia Garaizar and Vicente Monreal for 

 recovering tags in Sta. Rosalia. We extend our sincere 

 gratitude to all fishermen and squid factory personnel 

 for their cooperation. 



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