日本人據台時將其訂為 「天然紀念物」 加以保護，以避免此珍貴之魚種遭受混種、濫捕而導致滅絕的命運。
- 懿珩Lv 41 decade agoFavorite Answer
During Japanese colonial, they name this salmon a "Gift of the Nature" to protect and avoid this fish be mixed with other species and over-fishing.
After the Taiwan Retroration, due to the human damage and weather changes, the living environment for Formosan Landlocked Salmon; (scientific name) Oncorhynchus masou had getting worse each day. So since 1971 the government started a National Park Management team to engaged a number of different strategies to enhance the salmon stocks and protect their habitat for the future.
This creature had lived since the Ice age, and also the only cold water fish in Taiwan. This fish is a historical evidence to prove that Taiwan was part of Mainland China and also prove that even though Taiwan is situated at subtropical region still had very cold weather in the past.
Once they arrive the shallow part of the river, the salmon start spawning, they will fight for the best place. Female salmon laid eggs in depressions called "redds"; excavated by the female fish tale in the gravel of the river bottom which around 18 inches deep. After the eggs are deposited they are immediately fertilized by an accompanying male, and often by mature male parr, and then covered with gravel by both fishes. They continually swim upstream, fight, spawning again and again until they exhausted and die.
The life cycle of salmon often finished after spawningSource(s): me in Washington DC