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Predicting and assessing the environmental impact of aquaculture
Citation
Crawford, C and MacLeod, C, Predicting and assessing the environmental impact of aquaculture, New technologies in aquaculture: Improving production efficiency, quality and environmental management, Woodhead, Dr Gavin Burnell and Dr Geoff Allan (ed), Cambridge, UK, pp. 679-706. ISBN 978-1-84569-384-8 (2009) [Research Book Chapter]
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Abstract
Aquaculture can affect the environment in a number of ways, including
organic enrichment around the farm, increased dissolved nutrients or chemicals in
1he growing area, escapees affecting native species, loss of habitat and loss of
amenity. Likewise, the environment can affect aquaculture, through poor water
quality (e.g. pollutants, high particulate matter), predators and nuisances species
such as jellyfish or seals, or changing climate regimes. These impacts can be
reduced by careful site selection, to provide the appropriate conditions for the
species being cultured, and good farm management. New technologies are
assisting in minimising these environmental impacts. Recent developments in
remote sensing and seabed mapping have improved site selection. Monitoring
and assessment of the environment around aquaculture farms is becoming more
ommon, and this is also being supported by new technology. A range of probes
is now available that can be used in the field to provide an immediate measure or
placed in situ to continuously monitor environmental conditions. Other advances
include the use of visual techniques with digital cameras and remotely operated
or autonomous underwater vehicles. Computing capability and mathematical
models are also becoming increasingly important to management, both for
determining carrying capacity of growing areas and for prediction of impacts.
These models are becoming increasingly sophisticated and are capable of linking
across different temporal and spatial scales and across trophic levels and
incorporating social and economic parameters.
Item Details
| Item Type: | Research Book Chapter |
|---|---|
| Keywords: | aquaculture, environmental impact, environmental monitoring, carrying capacity, site selection. |
| Research Division: | Environmental Sciences |
| Research Group: | Environmental management |
| Research Field: | Environmental assessment and monitoring |
| Objective Division: | Animal Production and Animal Primary Products |
| Objective Group: | Fisheries - aquaculture |
| Objective Field: | Fisheries - aquaculture not elsewhere classified |
| UTAS Author: | Crawford, C (Dr Christine Crawford) |
| UTAS Author: | MacLeod, C (Professor Catriona MacLeod) |
| ID Code: | 61627 |
| Year Published: | 2009 |
| Deposited By: | TAFI - Marine Research Laboratory |
| Deposited On: | 2010-03-04 |
| Last Modified: | 2010-05-06 |
| Downloads: | 3 View Download Statistics |
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