ABSTRACT
We describe and illustrate two new species of Atanatolica from Brazil and Peru, representing the first record of the genus from Peru and the first record of the genus from Ceará state, Brazil. Atanatolica nordestina sp. nov. is recognized by short inferior appendages, with their basal portions subquadrangular, in ventral view; and by tergum X without the typical digitate apical processes, but with a pair of short rounded projections. Atanatolica quechua sp. nov. is recognized by preanal appendages long and slender, by the inferior appendages with the apicodorsal portion broader distally, and by the apicolateral processes of tergum X slightly capitate.
Subject(s)
Insecta/classification , Animal Distribution , Animal Structures/anatomy & histology , Animal Structures/growth & development , Animals , Body Size , Brazil , Ecosystem , Female , Insecta/anatomy & histology , Insecta/growth & development , Male , Organ Size , PeruABSTRACT
The aim of this study was to evaluate the exposure to methylmercury (MeHg) of potential populations at risk living in Portugal. To ascertain youth exposure, a questionnaire was distributed to 300 students of a middle secondary school in Sesimbra and to 429 students studying in Canecas, selected as the control population. The average number of fish meals consumed by person was 4.1 and 3 per week in Sesimbra and Canecas, respectively. The subpopulations of high intake (PHI) corresponding to those ingesting 7 or more fish meals per week were also analyzed separately, with 17% of the students belonging to the PHI of Sesimbra versus 6.1% in Canecas. Socioeconomic aspects such as relative's professional involvement with fisheries correlated with the higher intakes in Sesimbra. Fish samples were collected in the dock of Sesimbra and total mercury (Hg) was determined by flow injection cold vapor atomic fluorescence spectroscopy (FI-CV-AFS). The mean value found for nonpredators was 0.035 microg/g. Dogfish specimens surpassed the legislated limit for predator species and increased the predators mean to 1 microg/g. The cross-sectional data were integrated with the fish analysis results to estimate the population exposure to MeHg. The indices of risk calculated for youth reached values of 4.5, demonstrating the existence of risk to a part of the population exceeding the provisional tolerable weekly intake (PTWI) level mandated by WHO (1.6 microg/kg bw). The results indicate that monitoring of Hg levels in fish is mandatory and counseling should be provided to populations at risk, encouraging them to prevent the risk.
Subject(s)
Environmental Exposure/analysis , Fishes , Food Contamination , Methylmercury Compounds/analysis , Seafood , Water Pollutants, Chemical/analysis , Adolescent , Animals , Child , Cross-Sectional Studies , Female , Humans , Male , Portugal , Risk Assessment , Surveys and QuestionnairesABSTRACT
Trinta e cinco vacas de rebanhos leiteiros da região Norte do estado do Paraná, com histórico de abortamento, foram pesquisadas sorologicamente para verificar a presença de anticorpos contra Neospora caninum, Toxoplasma gondii, Leptospira spp., Brucella abortus, BHV-1 e BVDV. Vinte e uma vacas apresentaram títulos sorológicos compatíveis com infecção. Todas elas, soropositivas para N. caninum, foram também soropositivas para outros agentes infecciosos, sugerindo a possibilidade de associação desses agentes nos problemas reprodutivos de bovinos, no estado do Paraná.
