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Occurrence of the isopod parasite Rocinela signata (Isopoda: Aegidae) on marine fish Sparisoma frondosum (Osteichthyes: Scaridae)

Published online by Cambridge University Press:  03 July 2012

Elizete Teresinha Santos Cavalcanti ,
Sabrina Karla Silva do Nascimento ,
Nirlei Hirachy Costa Barros  and
Sathyabama Chellappa
Elizete Teresinha Santos Cavalcanti
Affiliation:
Universidade Federal do Rio Grande do Norte, Unidade Acadêmica Especializada em Ciências Agrárias, RN 160, Km 03, Distrito de Jundiaí, Macaíba/RN, CEP: 59280-000, Brazil
Sabrina Karla Silva do Nascimento
Affiliation:
Departament of Oceanography and Limnology, Universidade Federal do Rio Grande do Norte, Praia de Mãe Luíza, s/n, 59014-100, Natal, Rio Grande do Norte, Brazil
Nirlei Hirachy Costa Barros
Affiliation:
Departament of Oceanography and Limnology, Universidade Federal do Rio Grande do Norte, Praia de Mãe Luíza, s/n, 59014-100, Natal, Rio Grande do Norte, Brazil
Sathyabama Chellappa*
Affiliation:
Departament of Oceanography and Limnology, Universidade Federal do Rio Grande do Norte, Praia de Mãe Luíza, s/n, 59014-100, Natal, Rio Grande do Norte, Brazil
*
Correspondence should be addressed to: S. Chellappa, Departament of Oceanography and Limnology, Universidade Federal do Rio Grande do Norte, Praia de Mãe Luíza, s/n, 59014-100, Natal, Rio Grande do Norte, Brazil email: chellappa.sathyabama63@gmail.com
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Abstract

This study investigated the occurrence of metazoan parasites of the parrot-fish, Sparisoma frondosum (Osteichthyes: Scaridae), captured from the coastal waters of Natal, Rio Grande do Norte, Brazil. Using traps and motorized boats a total of 104 fish specimens were captured and their total length, body mass and gonad maturity stages were recorded. The fish samples were necropsied and the parasites encountered were carefully removed and quantified. The isopod Rocinela signata (Isopoda: Aegidae) parasitized 33.91% of fish, with a prevalence of 37.5%, a mean intensity of 2.58 and a mean abundance of 0.97 parasites per fish sampled. The site of parasitic infestation was the gill chambers of the hosts. This is the first record of R. signata parasitizing S. frondosum from the coast of Rio Grande do Norte, Brazil.

Keywords

parasitismRocinela signataSparisoma frondosumcoastal waters of north-eastern Brazil
Type
Research Article
Information
Marine Biodiversity Records , Volume 5 , August 2012 , e66
Copyright
Copyright © Marine Biological Association of the United Kingdom 2012

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