We conduct the following researches such as ecological
and environmental studies on Pacific salmon, mainly in their freshwater
life period, in order to develop comprehensive methods of resource management
for both wild and stocked salmon. Recently, the importance of conserving
wild salmon stocks has been well recognized among citizens in Japan as well
as in other nations, thus we are also involved in issues such as studies
on situation of natural spawning, and/or conserving and developing the spawning
ground. Besides, we try to develop active propagation techniques to enable
the coexistence of wild and stocked salmon, through the study about
co-relation and proportion of those two populations in the rivers, using
newly introduced techniques such as otolith thermal marking and stable isotope
ratio analysis. |
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