Chang Geraldine Olive Ju Lien, Inn Lai Ven, Hwai Aileen Tan Shau, Yasin Zulfigar
Marine Science Lab, School of Biological Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia.
Trop Life Sci Res. 2016 Nov;27(supp1):45-51. doi: 10.21315/tlsr2016.27.3.7.
A small scale laboratory study was conducted to determine the effects of salinity ranging from 15, 20, 25, 30, 35, 40, and 45 ppt on the filtration rates of juvenile oyster with 25 ppt as the control. Three juvenile oysters (shell weight: 1.04 ± 0.12 g; shell length: 1.9 ± 0.2 cm; shell height: 1.9 ± 0.1 cm) were used to test the filtration rates in each salinity over the course of 8 hours. The hourly filtration rates were determined from the exponential decrease in algal ( concentration as a function of time. The oyster in 35 ppt salinity produced the highest overall filtration rate (FR) with 134.06 ± 15.66 mL hr oyster and the lowest overall filtration rate (FR) occurred in oyster exposed to 15 ppt and 45 ppt with 31.30 ± 6.90 mL hr oyster and 32.11 ± 7.68 mL hr oyster respectively throughout the 8 hours. The result from this study can be useful for optimum oyster culturing and the oysters can be employed as a natural biofilter in marine polyculture farming.
进行了一项小规模实验室研究，以确定盐度为15、20、25、30、35、40和45ppt对幼龄牡蛎滤水率的影响，以25ppt作为对照。使用三只幼龄牡蛎（壳重：1.04±0.12克；壳长：1.9±0.2厘米；壳高：1.9±0.1厘米）在8小时内测试每个盐度下的滤水率。每小时滤水率根据藻类浓度随时间的指数下降来确定。盐度为35ppt的牡蛎产生的总滤水率最高，为134.06±15.66毫升/小时·牡蛎，而在整个8小时内，暴露于15ppt和45ppt的牡蛎总滤水率最低，分别为31.30±6.90毫升/小时·牡蛎和32.11±7.68毫升/小时·牡蛎。这项研究的结果对于优化牡蛎养殖可能有用，并且牡蛎可作为海水混养养殖中的天然生物过滤器。
