364 



Fishery Bulletin 89(3). 1991 



interpret. Tetrabothrius curilensis and T. affinis, al- 

 though recovered only from the higher latitudes in this 

 sample, may have been carried south by migrating 

 whales. Tetrabothrius affinis has previously been 

 recorded from lower latitudes in other host species. 

 Corynosoma bullosum, on the basis of the previous 

 discussion, may be characteristic of the high-latitude 

 feeding grounds. This helminth matures in pinnipeds 

 from the Balleny Islands and the Antarctic coast. 

 Monorygma grimaldii has thus far been reported only 

 from the lower latitudes, and Placentonema gigantis- 

 sima may also be restricted to temperate waters. To 

 date, P. gigantissima has only been found in female 

 whales which do not penetrate as far south as the 

 males. 



In his commentary on the case for scientific whal- 

 ing, Nagasaki (1990) states, "Our ignorance about the 

 biology of whales is delaying any informed discussion 

 about the practice of commercial whaling." He goes 

 on to discuss Japan's recent scientific whaling program. 

 The data presented in this study on the parasitic fauna 

 found in these Antarctic whales is just one more piece 

 of information that can help the scientific community 

 understand the Antarctic ecosystems and, hopefully, 

 with it, improve our ability to better assess the status 

 of Antarctic whale stocks. 



Acknowledgments 



The authors would like to thank the crews of the Tonan 

 Maru #2 and Nisshan Maru #3. This research was sup- 

 ported by NOAA, National Marine Fisheries Service, 

 under Contract #01-6-208-1565. Logistics support was 

 provided by the Japanese Whaling Association and the 

 Japanese Fishery Agency. We also thank Dr. Robert 

 Brownell Jr. of the U.S. Fish and Wildlife Service, and 

 Mr. William Dunton, Ocean Studies Institute, Califor- 

 nia State University, Long Beach, for their help dur- 

 ing the preparation of the manuscript. 



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