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1 January 2002 The Occurrence of Otodistomum plunketi (Digenea: Azygiidae), in Rays (Chondrichthyes: Rajidae) Around the Falkland Islands
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Abstract

The occurrence of a large digenean, Otodistomum plunketi, in 8 rajid host species from the Falkland Islands was investigated. All infected hosts are new host records for O. plunketi. The parasites were in the abdominal cavity except in 1 individual host, which harbored some trematodes within the pericardium. The prevalence and mean intensity of O. plunketi in all hosts examined were 31% and 1.95, respectively. Bathyraja multispinis had the greatest infection rate, with a prevalence of 100%, a mean intensity of 50.4, and a range of 8–136 parasites. Bathyraja scaphiops and Raja doellojuradoi were not infected. For Bathyraja albomaculata, a significant positive correlation (P < 0.05) was found between mean abundance and total length. For the remaining hosts, no relationship was found between intrinsic host factors and infection. Thirty small crabs, Peltarion spinosulum, a major prey item for B. multispinis and B. albomaculata, were examined for O. plunketi metacercariae but were not infected.

Paul Brickle, Joost Pompert, and Daniel Poulding "The Occurrence of Otodistomum plunketi (Digenea: Azygiidae), in Rays (Chondrichthyes: Rajidae) Around the Falkland Islands," Comparative Parasitology 69(1), 86-89, (1 January 2002). https://doi.org/10.1654/1525-2647(2002)069[0086:TOOOPF]2.0.CO;2
Published: 1 January 2002
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