Environmental Engineering Reference
In-Depth Information
surrounding it. The gradual increase in population and alternative activities such as
ecotourism will only increase the ecological pressures on the ecosystem.
An important contribution to the proper use of this lagoon system is precisely to obtain
adequate rates to define the proper establishment of suitable sites for different types of
aquaculture farming.
In order to consider the suitability of each potential site for the clam culture, a mathematical
index was utilized. This index helped determine the ranks of suitability of each site in
regards to its possible use for marine cultures. Based on the results obtained, seven sites
were identified as adequate for clam culture. The one that presents the best conditions is
estuary San Buto. The Methodology and Results of this work can be used in all Coastal Zone
with Aquaculture potentialities.
Mangroves and aquaculture are not necessarily incompatible. For example, seaweeds,
bivalves and fish (seabass, grouper) in cages can be grown in mangrove waterways. Such
mangrove-friendly aquaculture technologies are amenable to small-scale, family-based
operations and can be adopted in mangrove conservation and restoration sites. Brackish
water culture ponds may not necessarily preclude the presence of mangroves. Dikes and
tidal flats fronting early Indonesian tambak were planted with mangroves to provide
firewood, fertilizers and protection from wave action. Present-day versions of integrated
forestry-fisheries-aquaculture can be found in the traditional geiwai ponds in Hong Kong,
mangrove-shrimp ponds in Vietnam, aquasilviculture in the Philippines, and silvofisheries
in Indonesia. Alternatively, mangroves adjacent to intensive ponds can be used to process
nutrients in pond effluents (Primavera, 2006).
Fig. 6. Suspension system in aquatic farming Baja California peninsula.
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