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Reports of Kroyeria species collected from South African waters with notes on the host–parasite associations

Reports of Kroyeria species collected from South African waters with notes on the host–parasite... There are 21 species in the genus Kroyeria of which nine have been reported from hosts caught off South Africa. Host–parasite associations were reported for K. dispar, K. papillipes and K. sphyrnae. Kroyeria specimens were collected from the gill filaments of elasmobranch hosts, fixed and preserved in 70% ethanol and the prevalence, mean intensity and mean abundance calculated. Kroyeria lineata from Mustelus palumbes constitutes a new host and geographical record, K. rhophemophaga from Galeorhinus galeus a new geographical record and K. carchariaeglauci from Carcharhinus amboinensis an additional new host record. Except for K. dispar, Kroyeria species generally display low parasite loads on their hosts. Prevalence varied between 11.8% (CI: 1.5–36.4%) and 94.4% (CI: 86.4–98.5%). Mean intensity and mean abundance values ranged from four to 72.8 (SE 11.1) individuals per infected host and from 0.7 (SE 0.5) to 65.7 (SE 10.5) individuals per examined host, respectively. All Kroyeria species examined display an aggregated distribution pattern. This study confirms previous suggestions that Kroyeria species are generally host specific, with only a few species found on multiple hosts. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png African Zoology Taylor & Francis

Reports of Kroyeria species collected from South African waters with notes on the host–parasite associations

Mokumo, Peter J; Dippenaar, Susan M
African Zoology , Volume 50 (2): 6 – Apr 3, 2015
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Reports of Kroyeria species collected from South African waters with notes on the host–parasite associations

Abstract

There are 21 species in the genus Kroyeria of which nine have been reported from hosts caught off South Africa. Host–parasite associations were reported for K. dispar, K. papillipes and K. sphyrnae. Kroyeria specimens were collected from the gill filaments of elasmobranch hosts, fixed and preserved in 70% ethanol and the prevalence, mean intensity and mean abundance calculated. Kroyeria lineata from Mustelus palumbes constitutes a new host and geographical record, K. rhophemophaga from...
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Publisher
Taylor & Francis
Copyright
© 2015 Zoological Society of Southern Africa
ISSN
2224-073X
eISSN
1562-7020
DOI
10.1080/15627020.2015.1021176
Publisher site
See Article on Publisher Site

Abstract

There are 21 species in the genus Kroyeria of which nine have been reported from hosts caught off South Africa. Host–parasite associations were reported for K. dispar, K. papillipes and K. sphyrnae. Kroyeria specimens were collected from the gill filaments of elasmobranch hosts, fixed and preserved in 70% ethanol and the prevalence, mean intensity and mean abundance calculated. Kroyeria lineata from Mustelus palumbes constitutes a new host and geographical record, K. rhophemophaga from Galeorhinus galeus a new geographical record and K. carchariaeglauci from Carcharhinus amboinensis an additional new host record. Except for K. dispar, Kroyeria species generally display low parasite loads on their hosts. Prevalence varied between 11.8% (CI: 1.5–36.4%) and 94.4% (CI: 86.4–98.5%). Mean intensity and mean abundance values ranged from four to 72.8 (SE 11.1) individuals per infected host and from 0.7 (SE 0.5) to 65.7 (SE 10.5) individuals per examined host, respectively. All Kroyeria species examined display an aggregated distribution pattern. This study confirms previous suggestions that Kroyeria species are generally host specific, with only a few species found on multiple hosts.

Journal

African Zoology – Taylor & Francis

Published: Apr 3, 2015

Keywords: Copepoda; mean abundance; mean intensity; prevalence; Siphonostomatoida

References

  • Evolutionary biology of Siphonostomatoida (Copepoda) parasitic on vertebrates
  • Spatial distribution of the parasite Kroyeria carchariaeglauci Hesse, 1879 (Copepoda: Siphonostomatoida: Kroyeriidae) on gills of the blue shark (Prionace glauca (L., 1758)
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  • Notes on the morphology and ecology of the adult females of Nesippus species (Siphonostomatoida: Pandaridae) with a key for identification
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  • Is there evidence of niche restriction in the spatial distribution of Kroyeria dispar Wilson, 1935, K. papillipes Wilson, 1932 and Eudactylina pusilla Cressey, 1967 (Copepoda: Siphonostomatoida) on the gill filaments of tiger sharks Galeocerdo cuvier off KwaZulu-Natal, South Africa?
  • Spatial distribution of Nemesis lamna Risso, 1826 (Copepoda: Siphonostomatoida: Eudactylinidae) on the gills of white sharks Carcharodon carcharias off KwaZulu-Natal, South Africa
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  • Kroyeria brasiliense sp. nov. (Copepoda, Kroyeriidae) a gill parasite of the shark, Galeorhinus vitaminicus de Buen, in Rio do Sul State, Brazil