Dailey and Vogelbein: Parasite fauna as stock indicators of Antarctic whales 



357 



Balaenoptera borealis 



Nine helminth parasite species were found in sei whales 

 captured in three commercial whaling sectors (Table 

 2). The mesoparasitic crustacean Pennella balaenop- 

 terae Koren and Danielssen, 1877 is also listed but is 



not included in the analysis. Two helminths occurred 

 at very high prevalence. The acanthocephalan Bolbo- 

 soma turbinella (Diesing, 1851) infected all 35 hosts in 

 high numbers. All sei whales were infected with ces- 

 todes of the genus Tetrabothrius Rudolphi, 1819. Two 



