Projeto Marambaia: apoio à pesca artesanal no Ceará - instalação e monitoramento dos recifes artificiais em Paracuru

Abstract

se of artifi cial reefs (ARs) as a tool for fi shery resources management has been thought of as a feasible alternative for increasing fi shing productivity. Given the great variety of materials employed in their construction, it is evident the need for assessing the effects of such procedure on the marine biota concerning its physical and biological features in Northeast Brazil. This paper was designed to describe the building of ARs with metallic containers after a partnership between the Brazilian Oil Company (PETROBRÁS) and the Marine Science Institute. The site’s least depth, suggestions by fi shermen, care with navigation security and the reserve in respect to further surveys have been the chief criteria used in choosing the right site for forthcoming installation of structures at a 10-mile distance from the coastline, in 20-meter depths. This project has complied with the Maritime Authority NORMAN 11 guideline from the Harbor and Coast Directorate of the Brazilian Navy, specifi c care being taken in the preparation of each container, namely opening of “windows” in its walls and ceiling so as to account for accuracy in the sinking operation. The colonization process has been mostly represented by Hydrozoa organisms. The 21 species identifi ed the visual census, in a 18-month period, have kept clustered in the reefs’ neighborhood, whereas an empty landscape is noticeable outside their sphere of action.