Ecologia alimentar e reprodutiva da piaba-do-rabo-amarelo, Astyanax cf. lacustris (Reinhardt, 1874) (Osteichthyes: Characidae) na Lagoa do Piató, Assu, Rio Grande do Norte, Brasil

The feeding habits and biological aspects of the reproductive cycle of two-spot astyanax, Astyanax cf. lacustris (Reinhardt, 1874) were investigated. Fish samples were captured on a monthly basis, using gillnets of 4 cm mesh size, from the Piató Lake, Assu, Rio Grande do Norte, during the period of September, 2006 to August, 2007. Physico-chemical parameters, such as, temperature, electrical conductivity and dissolved oxygen of the lake were registered. The monthly values of rainfall also were obtained. The 360 individuals captured, were measured, weighed, dissected, and stomach weight and the stage of gonadal maturity were registered. The stomach contents analyses were carried out based on volumetric method, points, frequency of occurrence and applying the Index of Relative Importance. The degrees of repletion of the stomachs were determined besides the Index of Repletion relating to feeding activity variations and frequency of ingestion with limnological parameters and rainfall. The food items identified were separated into distinct groups according to their origin. Sex ratio and Gonadosomatic Relation of females were verified to determine the spawning period and fecundity. The physico-chemical parameters presented the following annual mean values: temperature = 28.8ºC, electrical conductivity = 992.5 µS.cm-1; dissolved oxygen = 4.9 mg.L-1 during the study period. The annual mean of the rainfall was 63.5 mm. The results indicate that this species present an omnivorous feeding habit with a tendency towards insectivory, with an increase in feeding activity during the dry season. The aquatic oxygen to interfere very importance in the feeding activity than the others factors physico-chemicals of water and rainfall. There was a predominance of females, with a sex proportion of 1M:7F. The macroscopic characteristics of the ovaries and testicles revealed four stages of gonadal development: immature, maturing, mature and spent. A temporal variation was observed for the gonadal development of males and females. There was reproductive activity through out the year, with peaks in the months of February, April and June to correspond with the rain of precipitation of the region. The mean fecundity was 7.681 mature oocytes, varying from 4.476 to 12.036, with mean of 7.681. There was positive relation between fecundity and body mass. Condition Factor is not an efficient indicator of the reproductive period of this species. The species A. cf. lacustris is an opportunist and is well adapted to the conditions of the semi-arid Caatinga Biome

A história do centro de educação integrada Monsenhor Honório: surgimento e contribuições (Macau /RN - 1956 1966)

The present study objective to construct to the Education‟s History of Centro de Educação Integrada Monsenhor Honório in Macau, in the state of the Rio Grande do Norte. By means of the examination of this Institution of education, we intend to analyze its educative practical in the Fifties years, that this was the first one to offer gymnasial course and, over all, for having formed doctors, engineers, teachers, bachelors and economists in the city and the region during five decades of functioning. For this we use the records as documentary sources available in the institution, in newspapers and in public and private archives in the capital and the interior, beyond interview with former-employees, former-pupils and people who had participated of its creation and, consequently, they had made and they are part of this history. The institution‟s history helped to us to comment the reading of Macau‟s education, propitiating us reflections about pedagogical practical, methods of teaching and school regiment, in the perspective to understand a past still so present and all process for which passed the education, in the context of the proper Macau‟s history. The search results lead us to evidence that the creation of this school, in 1956, represented a landmark in the education of this municipal district, contributing of decisive form in the formation of the macauenses