competitive interactions between species of freshwater snails: i. laboratory: ia. general methodology

competitive interactions between species of freshwater snails: i. laboratory: ia. general methodology

;Frederico Simões Barbosa;Dirceu P. Pereira da Costa;Francisco Arruda
kurdistan journal of applied research 1983 Vol. 78 pp. 335-341
135
barbosa1983memriascompetitive

Abstract

For the development of laboratory experiments on the competitive interacitons between freshwater snail populations, special snail rooms were set up in the main building of the Research Center "Aggeu Magalhães". In the current paper, the first of a series on this subject, the general methodology of the laboratory work is described in detail. Using indoor cement channels in which a uniform seminatural environment was created, interactions of freshwater snail populations can be studied with minimal interference of the usual variables. Controlled indoor environmental techniques, as described in the current paper, may also be utilized in different types of experiments in malacology, and represent a substantial technical advance in malacological work.
Com a finalidade de realizar experimentos de laboratório sobre interações em populações de caramujos da água doce, salas foram especialmente preparadas para este fim no edifício principal do Centro de Pesquisas Aggeu Magalhães. Nesta publicação, a primeria de uma série sobre o assunto, é descrita, com detalhes, a metodologia geral do trabalho de laboratório. Utilizando canais de cimento foram estabelecidas condições semi-naturais sob as quais puderam ser estudadas as interações de populações de caramujos com um mínimo de interferência de variáveis ambientais. Técnicas que utilizam controle de ambiente interno, como as descritas no presente trabalho, podem ser também empregadas em muitos outros tipos de experiências em malacologia e constituem avanço substancial em trablahos malacológicos.

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