Full text
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| Author(s): |
Fausto Silvestri
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Instituto Oceanográfico (IO/DIDC) |
| Defense date: | 2009-11-19 |
| Examining board members: |
Alexander Turra;
Jaime Fernando Ferreira;
Helcio Luis de Almeida Marques
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| Advisor: | Alexander Turra |
| Abstract | |
Due to the fast aquaculture\'s growth in Brazil, governmental institutions are facing difficulties to promote a sustainable development of the activity. With this, there is an increasing necessity of researches to determine the influence of mussel cultures on the environment. In this context, this study aims to experimentally determine solid waste production from mussels\' culture in Cocanha Beach, the largest mussel culture site in São Paulo State\'s coast. For this, monthly experiments with cultivated mussels where carried out from February/2008 to January/2009 to quantify the amount of solid waste produced. The results showed that the amount of solid waste produced had a significant variation with the size of the organisms and also through the year. The oceanographic parameters also varied throughout the study period but could not explain the variation in solid waste production. Annual total production was estimated in 233,8 to 718,9 (415,1 ±174,7) tons of solid waste, which varied in relation to the density of the culture. Due to these findings, further specific researches concerning local hydrodynamic characteristics are requested in order to determine the exact location and range of the area that suffers the impact derived from local aquaculture activities. (AU) | |