Ecological Survey on the Water Saving System for Culture and Feeding Study of the Freshwater Bivalve, Corbicula fluminea
Date Issued
2007
Date
2007
Author(s)
Chen, Yang-De
DOI
zh-TW
Abstract
Freshwater clam Corbicula fluminea is the most important freshwater bivalve in Taiwan. The production of Corbicula fluminea has been decreasing in recent years. The most difficult problem for farming Corbicula fluminea is lack of enough freshwater, due to the water pollution in Taiwan. At the present, the water saving system for farming Corbicula fluminea is exploited and used. The concept of water saving system is purifying the water quality by using ecology engineering, and reused the water for farming Corbicula fluminea. This study is to investigate the effect of the water saving system by ecology survey, and to understand the feeding ecology of the freshwater clam. The result of the ecology survey shows that the water circulation between the algae pond and the culture pond can control the content of chlorophyll a and increase the dissolved oxygen in the culture pond. The growth rate of Corbicula fluminea cultured in the water saving system is faster than that cultured in the common system. The best manure to grow phytoplankton in the algae pond is bean powder, with the secondary and third being the fish meat and rice bran, respectively. The result of the feeding study show Cobicula fluminea cultured at temperature of 25℃, salinity of 0-1psu, and pH 7 has the optimal feeding rate. The ability of filtering feeder of Corbicula fluminea can used to remove algae in water and control formation of the eutrophication.
Subjects
濾除率
優氧化
Corbicula fluminea
filtration rate
eutrophication
SDGs
Type
other
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