If the salmon can be released in other streams as well, not only will this improve the species 'chances for survival, it can also avoid the problem of declining resistance to disease which can be caused by inadequate diversity in the gene pool.
若能放流其他溪澗，除提高魚兒的存活機率，也可以避免因為基因岐異度過小，魚兒免疫力越差的問題。