They’re an indigonious species so the effect on the ecosystem is likely to be beneficial in the long run as they form an important part of the food web for inland animals during their breeding season which should lead to increased biodiversity. The whole purpose of the project is to reinforce their numbers which have been reduced by fishing. The main concern would be disease, but they would have been screened prior to their release so it should be a non-issue.
They’re an indigonious species so the effect on the ecosystem is likely to be beneficial in the long run as they form an important part of the food web for inland animals during their breeding season which should lead to increased biodiversity. The whole purpose of the project is to reinforce their numbers which have been reduced by fishing. The main concern would be disease, but they would have been screened prior to their release so it should be a non-issue.