Metazoan parasite infracommunities in five sciaenids from the Central Peruvian coast
Mem. Inst. Oswaldo Cruz
;
93(2): 175-80, Mar.-Apr. 1998. tab
Article
in English
| LILACS
| ID: lil-203592
ABSTRACT
Parasitological analysis of 237 Menticirrhus ophicephalus, 124 Paralonchurus peruanus, 249 Sciaena deliciosa, 50 Sciaena fasciata and 308 Stellifer minor from Callao (Perú) yielded 37 species of metazoan parasites (14 Monogenea, 11 Copepoda, 4 Nematoda, 3 Acanthocephala, 1 Digenea, 1 Aspidobothrea, 1 Eucestoda, 1 Isopoda and 1 Hirudinea). Only one species, the copepoda Bomolochus peruensis, was common to all five hosts. The majority of the components of the infracommunities analysed are ectoparasites. The Brillouin index (H) and everness (J') were applied to the fully sampled metazoan parasite infracommunities. High values of prevalence and mean abundance of infection are associated to the polyonchoinean monogeneans; the low values of J' reinforce the strong dominance of this group in the studied communities. The paucity of the endoparasite fauna may be a consequence of the unstable environment due to an upwelling system, aperiodically affected by the El Niño Southern Oscillation phenomena.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Parasites
/
Fishes
Type of study:
Risk factors
Limits:
Animals
Country/Region as subject:
South America
/
Peru
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
1998
Type:
Article
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