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PARASITE COMMUNITIES OF THE TRAMBOLLO, LABRISOMUS PHILIPPII (STEINDACHNER, 1866) (PERCIFORMES: LABRISOMIDAE), OFF COASTAL ZONE OF CHORRILLOS, LIMA, PERU

Neotropical Helminthology 01/2011; 5(1):73 - 84.

ABSTRACT Labrisomus philippii (Steindachner, 1866) is a marine fish species of intertidal-subtidal rocky bottom with distribution on the coast of Peru and Chile. 124 specimens of L. philippii were acquired in the Chorrillos Fishmarket, Lima, Peru, between May to September 2008 to evaluate parasitefauna infracommunities. Fish showed a mean length of 19.1 cm (10 cm to 24.5 cm). Parasites were collected and counted employing conventional techniques. Parasite assemblages were higher for endoparasite (99.3%) than ectoparasites abundance (0.70%). The mean parasite species richness was 1.1 (0-5). Forty-seven hosts were not parasited and seventy-seven hosts showed infection at least with one parasite specie. Eight parasites with the following prevalence and mean abundance were found: an unidentified mixosporea (7.2%; 0.1±0.5), the copepod Acanthochondria syciasis 0.5±2.0), the nematode Proleptus sp. (2.4%; 0.02± 0.1) and a Piscicolidae unidentified gen. specie (1.6%; 0.02± 0.1). Importance concept of Bursey showed that Z. rubellus (1872), H. fasciata (483.7) and P. rioplatensis (390) presented high numeric values. Five of the eight parasites showed an aggregated distribution. Finally, the results obtained of community parasite structure registered on L. philippii twenty years ago in the same locality of study were compared.

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30 May 2012

Keywords

124 specimens
 
aggregated distribution
 
community parasite structure
 
copepod Acanthochondria syciasis 0.5±2.0
 
ectoparasites abundance
 
eight parasites
 
endoparasite
 
following prevalence
 
intertidal-subtidal rocky bottom
 
marine fish species
 
mean parasite species richness
 
nematode Proleptus sp
 
numeric values
 
Parasite assemblages
 
parasite specie
 
parasitefauna infracommunities
 
Parasites
 
Piscicolidae unidentified gen
 
unidentified mixosporea
 
Z. rubellus