FISHERY BULLETIN: VOL. 71, NO. 1 



ACKNOWLEDGMENTS 



I wish to express my appreciation to George J. 

 Ridgway and John E. Watson of the Northeast 

 Fisheries Center, Boothbay Harbor Laboratory, 

 National Marine Fisheries Service and to Roland 

 Walker of the Rensselaer Polytechnic Institute 

 who critically reviewed the manuscript and made 

 suggestions to improve clarity of presentation. 

 I thank Gareth W. Coffin of the Boothbay Harbor 

 Laboratory for his excellent photomicrographic 

 work. 



LITERATURE CITED 



BOYAR, H. C. 



1962. Blood cell types and differential cell counts 

 in Atlantic herring, Clupea harengus harengus. 

 Copeia 1962:463-465. 



CoLTON, J. B., Jr., and R. R. Stoddard. 



1972. Average monthly sea water temperatures, 

 Nova Scotia to Long Island, 1940-1959. Ser. Atlas 

 Mar. Environ., Am. Geogr. Soc. Folio 22. 

 Gardner, G. R., and P. P. Yevich. 



1969. Studies on the blood morphology of three 

 estuarine cyprlnodontiform fishes. J. Fish. Res. 

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 Laird, M., and W. L. Bullock. 



1969. Marine fish haematozoa from New Bruns- 

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 26:1075-1102, 



RiDGWAY, G. J. 



1956. Some cytological observations on fish eryth- 

 rocytes. Progr. Fish-Cult. 18:67-69. 



Walker, R. 



1971. PEN, a viral lesion of fish erythrocytes. 

 (Abstr.) Am. Zool. 11:707. 



WiDMARK, R. M. 



1970. How reliable are red cell indices? Lab. Med. 

 1(12) :37. 



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