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O presente estudo mostra os avancos obtidos na coleta de peixes e caracterizacao ambiental de riachos. Desde a publicacao em 1999 do volume VI “Ecologia de Peixes de Riachos”, da entao denominada Oecologia Brasiliensis , hoje Oecologia Australis , varios progressos ocorreram. Diversos metodos de coleta de peixes propriamente ditos, permaneceram os mesmos. Porem, em relacao ao uso da pesca eletrica, coleta de ovos e larvas de peixes, e caracterizacao de habitat fisicos em riachos, houve notavel desenvolvimento e aperfeicoamento. O objetivo deste artigo e apresentar o “estado da arte” destes aspectos da amostragem de peixes e habitat em riachos. Metodos de preparo de amostras para analises geneticas, isotopos estaveis e metais pesados sao apresentados resumidamente ao final. ADVANCES IN METHODS FOR FISH SAMPLING AND HABITAT ASSESSMENT IN TROPICAL STREAMS: This paper brings some advances in fish data sampling and stream environments. Since the publication in 1999 of volume VI “Ecology of Stream Fishes” in the former Oecologia Brasiliensis journal, today Oecologia Australis , several progresses have occurred. Several methods of collecting fish themselves, have remained the same. However, in relation to the use of electric fishing, collection of eggs and fish larvae, and characterization of physical habitats in streams, there was remarkable development and improvement. The purpose of this article is to present the “state of the art” of these three aspects of sampling fish and habitats in streams. By the end, preparation methods of samples for genetic, stable isotopes and heavy metal analyses are briefly presented. |
