Aquaculture Environmental Impact Assessment
Author(s)
L. Molina Domínguez & J. M. Vergara Martín
Abstract
All human activities produce some impact on the surrounding environment, and
aquaculture is not an exception, as it utilises natural resources and releases waste
into the environment. As the aquaculture sector developed, environmental
aspects became of an increasing concern, in parallel with maximum public
environmental concern developed from the second half of the 20th century. Up
to now, most aquaculture practices have produced little negative effects on the
ecosystems, even being beneficial in some cases. However, frequently a deficient
management or accidents in aquaculture facilities have been reported to cause
negative effects. Potential effects of aquaculture activities include water and
sediment quality, and negative impacts on natural populations, landscape, and
other pre-existing economical activities. To a great extent, these effects depend
upon factors such as type of facilities, geographical location, and produced
species. The ultimate origin of this variety of effect consists of a small number of
sources, including feeds offered, chemicals, animals excretions, dead animals,
and the interactions between cultured and wild animals. Despite the availability
of scientifically based monitoring techniques, there is a wide range of different
methods presently used for sampling, analysing, and estimating these effects. In
addition, there are different assessment approaches, including chemical,
ecological, and nutritional. All of these aim to produce models in order to predict
this interaction between aquaculture and the environment. Different models have
been proposed, from the classic Vollenweider diagrams, to ecometric, and mass
balance analyses.
Keywords: aquaculture, environmental impact, assessment metodology,
modelling.
Keywords
aquaculture, environmental impact, assessment metodology,
modelling.
Related Book
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