Sucessão Ecológica Meiofaunística no Manancial Olho D'água da Bica em Cuité - PB.

Abstract

The communities that form in aquatic environments undergo a gradual process in which changes occur in this community to strike a balance, this kind of behavior is defined as ecological succession. Zoobentônicos organisms that inhabit the interstitial spaces o f the sediments o f aquatic environments form a group of animais which are subdivided according to the size and contact with the bottom. This work aims to study is to characterize the process of colonization and ecological succession o f benthic meio fauna, with the use of artificial samplers in a tretch of thewealth of Eye Water spout inserted in Horto UFCG Cuité in Paraíba. Theyhad nine collections (July/2010 to September/2010), totaling 27 cards and 27 ceramic pots of sediment. In the laboratory the samples were separated meiofauníticas at intervals of 0.45mm mesh and subsequently identified the zoological groups. Qualitatively the meiofauna in the stockunder study was represented by the following taxa: Hidra, larva de inseto, Acari, Nematoda, Olygochaeta, Ostracoda, Polychaeta and Turbellaria. There was a succession of organisms in boards, with the most abundant group in Hydra, in the sediment, Nematoda, Polychaeta and mites were the most abundant. The results may indicate eutrophication of the environment, or the bodies by fish predation. The presence o f organisms in the sediment that did not migrate to the plate, could be related to the type of substrate. And those who carne on board, but were not in the sediment can is associated with the type o f power.