Conclusion
Through this project all major threats to upland trout have been identified. It is apparent through this project that acidification is one of the most seroius threats and one of the biggest reasons for a reduction in trout stocks. Therefore environmental Agencies must work with angling associations and conservationists to reduce the problem. As seen this can be done by careful liming of the stream source.
This project also states the dangers to trout stocks from external sources such as predators and the introduction of genetically different trout. The conclusion has been reached that predation is not yet a proven threat to trout stocks and provided the habitat is adequate trout stocks should be able to cope with predation. Genetic introduction should be regarded as a threat to wild brown trout. The different gene pools breeding is likely to reduce the hardiness of the wild stock. This is what makes the brown trout such an outstanding survivor. As can be seen in the different habitats in which it is found.
This report has shown that to create good habitat for trout is not difficult and the benefits are almost immediate, not just for trout but for many other species. Financial benefits can also be gained from land owners who own stretches of land which contains healthy stocks of trout. As angling associations will pay substantial amounts for good quality trout stretches.
It is a worrying concept that though that the main source of habitat threat is acidification. This is a threat that can be controlled by liming but the source cannot be stopped. Afforestation acidification can be controlled to an extent, but industrial pollution is a greater worry. If this threat is to be eliminated it will take more than simply good habitat management therefore legislation must be administered at a higher level to eradicate the largest threat to the entire upland ecosystem.