The effect of culturing environment on physiology of reef corals: a comparison between mesocosm and tank
Date Issued
2006
Date
2006
Author(s)
Lin, Jung-Shan
DOI
zh-TW
Abstract
The purpose of this study is to understand the effect of culturing environment on physiology of reef corals. The experiment cultured separately three kinds of corals which included Acropora intermedia, Stylophora pistillata and Seriatopora hystrix in mesocosms (with sand, rocks, corals, invertebrates and fish inside) and tanks(only seawater inside). After a period of culturing, the photosynthesis and growth rate of coral nubbins could be measured and compared to emerge the difference of the two culturing environments. The result shows that the data of Acropora intermedia cultured in mesocosms which include the maximum quantum yield of photosystem II (Fv/Fm), chlorophyll a concentration, zooxanthellae density and chlorophyll a concentration per zooxanthellae were higher than the data which were measured in the culturing environment of tanks. For Stylophora pistillata, the data of Fv/Fm, chlorophyll a concentration and zooxanthellae density were higher in mesocosms as well. In addition, the growth rates of three coral nubbins were varied in the same culturing environment but the growth rates of corals in the culturing environment of mesocosms were still higher or equal to the date in tanks. The difference between each of the physical parameter in two culturing environments emerged by time. Finally, using mesocosm to culture reef corals is effective in maintaining the growth rate, and the photosynthetic parameters are higher in the culturing environment of mesocosms. Therefore, the conclusion could be inferred that mesocosm is much suitable for the long period experiment, and tank is just applicable to short period experiment.
Subjects
珊瑚
中型生態箱
光合作用
鈣化作用
生長率
coral
mesocosm
photosynthesis
Fv/Fm
calcification
growth rate
Type
thesis
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