Aplicação da técnica de isótopos estáveis na estimativa da taxa de turnover em estudos ecológicos: uma síntese

Abstract

The use of stable isotopes technique in the turnover estimative rate in ecological studies. The stable isotopes have been used to obtain the turnover rate in aquatic animals. This is one more tool to help making decisions about the conservation, considering that the anthropic impacts threaten specific areas of food, reproduction and growth of the species in natural ambient. On the other hand, in the aquaculture, the knowledge about the conversion speed of the food in tissue helps to better estimate the production. Based on that, the aim of this paper is to make a revision about the studies carried out related to the turnover rate using stable isotopes, in ecology. The turnover consists of the new tissue synthesis and of the old tissue replacement using the animal composition present diet. The turnover rate depends on the animal tissue analyzed, on the development phase, on the time and on the abiotic parameters