how did you solve problems in your order to improve your fish farming business
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how did you solve problems in your order to improve your fish farming business
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Six tips to make your fish farm more environmentally sustainable
1. Choose the right species
As discussed in one of our recent articles on invasive species, invasive non-native species (INNS) are plants and animals which do not naturally occur in a specific location and can spread quickly enough to rob native species of resources. These can eventually overtake and replace native species, or hybridise with them.
2. Select a suitable farm site
When selecting a good site for a new farm, environmentally sensitive areas like swamps, coral reefs or mangrove forest should be avoided. Establishing a farm would have severe consequences on local biodiversity if, for example, mangrove forests or wetlands were cleared and converted into fish ponds. Farm effluents would also eventually have a considerable negative impact. Excessive nutrients via the influx of farm effluents would result in eutrophication, making waters murky, blotting out sunlight and negatively affecting the growth of plants, corals and the area’s other denizens.
3. Farm design and layout
Most traditional fish farms, especially pond farms, directly release their untreated wastewater into the environment surrounding their farms. This is a serious concern, not just for the natural environment, but also for surrounding communities which often use the water from public canals for drinking, bathing and washing utensils. Neighbouring fish farms are also threatened, as potential pathogens will spread swiftly and easily this way.
4. Manage feeding practices
Feeds contribute the largest share of waste in and around fish farms. When using trash fish or low-quality pellets, a great deal of feeds will be ignored by the fish. These will sink to the bottom, causing the water quality to deteriorate. When released, these effluents also degrade the water quality of the surrounding area.
5. Minimise chemicals and veterinary drugs
Many farmers use chemicals for pond preparation – eradicating predators and snails – and to maintain water-quality parameters. Veterinary drugs are sometimes used to keep fish healthy or to treat ailing batches.
6. Plant native vegetation
Finally, planting trees around your farm is always a good idea. Trees provide shade, reduce the impacts of wind and can provide an extra source of food for people, fish, birds and other animals.