Modeling the Impacts of Climate Change on Water Temperature and Potential Population of Formosan Landlocked Salmon’s Reintroduction Habitat
Date Issued
2004
Date
2004
Author(s)
Yang, Yi-Chen
DOI
en-US
Abstract
A stream temperature model and a fish population model are built to assess the impacts of climate change on water temperature and potential population of Formosan Landlocked Salmon’s reintroduction habitat. Reintroducing Formosan Landlocked Salmon into the other creeks which they do not exist currently will be the main conservation strategy in the next few years. The upstream of the TaChia River is one of the suitable habitats because Formosan Landlocked Salmon once lived there, and thus is selected as the study area in this thesis. According to the simulation of water temperature, under different climate change scenarios, the highest and lowest increase percentage of water temperature in this area are 11.2% in the ErWu Creek, and 7.8% in the Sikairan Creek, respectively. Meanwhile, the percentage change in winter is about 5% to 10% higher than in summer. This result implies climate change may damage the incubation of Formosan Landlocked Salmon in November. On the other hand, under the impact of climate change, the higher decrease percentage of potential population may happen in the ErWu Creek and BiLu Creek (about 15%). The decrease in Sikairan Creek and YuShang Creek are lower (about 10%). The result shows that if water temperature and potential population change in the future are only two factors that have been considered when reintroducing Formosan Landlocked Salmon into the other creeks, the Sikairan Creek and is the most appropriate habitat in this area.
Subjects
模式
氣候變遷
水溫
潛在族群數
櫻花鉤吻鮭
climate change
potential population
modeling
water temperature
Formosan Landlocked Salmon
SDGs
Type
thesis
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