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Copyright of Revista de Biologia Marina y Oceanografía (RBMO) is the property of Universidad de Valparaiso, Facultad de Ciencias del Mar and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective. To assess the community structure of helminths and parasitic crustaceans in the splittail bass Hemanthias peruanus (Steindachner, 1875) from northern Peru. Materials and methods. 75 specimens (34 males and 41 females) of H. peruanus were captured from Puerto Cabo Blanco, Piura, Peru. Total length and sex data of the fish were recorded. For the analysis of the parasitic community, the ecological parasitological indices, aggregation indices, alpha diversity indices and association between the biometric parameters of the fish and the parasitological indices were calculated. Results. The percentage of total prevalence in maidens infected with at least one parasitic metazoan species was 65.33%, that is, 49 parasitized hosts. The community component of the parasitic eumetazoan fauna in the evaluated fish was dominated by the presence of ectoparasites (three species of monogeneans and one species of isopod). Endoparasite abundance (two species of trematodes, one species of tapeworms and one species of acanthocephalan) was comparatively low. Biotic factors such as fish length and sex were not found to be related to parasitological indices of any parasitic species. The lack of association is probably due to the influence of other biotic or abiotic factors. The most prevalent parasites presented an aggregate type distribution. The Chao-1 estimator indicates that the expected richness was eight. Conclusions. We registered H. peruanus as a new host for Ceratothoa gaudichaudii, Corynosoma australe, Parancylodiscoides signifer, Pronotogrammella scholzi and Scolex pleuronectis. [ABSTRACT FROM AUTHOR]

Copyright of Revista de Investigaciones Veterinarias del Peru is the property of Universidad Nacional Mayor de San Marcos (UNMSM) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objectives: To determine the prevalence of intestinal infections by protozoan and helminthes and their relationship with sex, living place, and age group, in native schoolchildren from the Alto Marañon area in the Amazon jungle, Bagua province, Amazonas department, Peru. Materials and Methods: In this observational, cross-sectional study, representative schools from the region were selected, and stool samples from 1049 schoolchildren with ages from 6 to 15 year old were examined between October 2001 and October 2002, using direct microscopy with saline solution and lugol, as well as Teleman's and Kinnyoun's techniques. Results: The prevalence of intestinal protozoan and helminthes infections was as follows: Entamoeba coli, 68,0%; Blastocystis hominis, 28,4%; Endolimax nana, 23,9%; Iodameoba butschlii, 32,9%; Giardia lamblia, 21,4%; Entamoeba histolytica/dispar, 12,9%; Cryptosporidium sp., 10,9%; Paragonimus peruvianus, 0,7%; and Fasciola hepatica, 0,2% (which are not intestinal parasites, but living in lungs and biliary tract, respectively, and pass through feces); Ancylostoma/Necator, 30,4%; Ascaris lumbricoides, 28,9%; Trichocephalus trichiura, 16,6%; Enterobius vermicularis, 3,6%; Hymenolepis nana, 3,5%; Taenia solium/saginata, 0,2%; Strongyloides stercolaris, 0,8%; and H. diminuta, 0,2%. Conclusions: Ancylostoma/ Necator and A. lumbricoides are most prevalent in young people in Mesones Muro and Nazaret areas, and this is the very first time that Paragonimus infection is reported in the northern jungle of Peru. [ABSTRACT FROM AUTHOR]