ABSTRACT Parasites are important components of communities and constitute great part of the biological diversity found in ecosystems, providing valuable information about their hosts and the environment in which they live. However, despite its importance, parasitic diversity is still not well known in some regions of Brazil, especially with respect to fish parasites in the Northeast Region. The present study aims to perform the survey of gill parasites of fish from two tropical estuaries located in northeastern Brazil: Paraíba and Mamanguape rivers. Two collections were made in each estuary, one during the dry period (November / 2013) and the other during the rainy season (July / 2014). The fish were caught using a beach seine net, dragged along the main channel margin. After the identification, biometry and necropsy of the fish, their parasites were collected, stored and identified. For each species of parasite, the values of prevalence, mean intensity and mean abundance were calculated. Of the 882 examined fish, belonging to four species, 145 were parasitized by at least one species of parasite. In total, 18 taxa of parasites of the groups Monogenea, Digenea, Nematoda, Copepoda and Isopoda were recorded, being the copepod Acusicola brasiliensis the most abundant species of parasite.

O direito dos jovens à participação afigura-se como um meio para exprimirem necessidades e reclamarem os seus direitos. Contudo, a perspetiva dos jovens continua sub-representada na investigação aplicada à definição das políticas e práticas no âmbito dos serviços de saúde, sendo pouco utilizada na melhoria dos mesmos. Neste artigo apresentam-se os resultados de uma investigação participativa, na qual os jovens identificaram alguns fatores que promovem ou inibem a utilização dos serviços de saúde, e contribuíram para o desenho de um centro de saúde ideal para jovens.

The right of youth to participation is a means for young people to express their needs and claim their rights. However, the perspectives of youth remain underrepresented in research applied to the definition of policies and practices within the health services and are seldom used to improve them. In this article we present the results of a participatory research in the design of a health service with young people. The results indicate the reasons for the recurrence of young people to health services, as well as the characteristics of an ideal health center in their perspective.