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在桑沟湾用模拟现场流水法对滤食性附着生物玻璃海鞘和柄海鞘的滤水率进行了测定。结果表明，同一品种海鞘，在不同季节其滤水率随着水温的变化而变化。在实验水温范围内，以５月份水温在１７℃左右时海鞘滤水率最大，栖海鞘为３．１９ｌ／ｈ·ｉｎｄ（ｃｈｌ－ａ）和４．５３１／ｈ·ｉｎｄ（ＰＯＭ），玻璃海鞘为０．７３１／ｈ·ｉｎｄ（ｃｈｌ－ａ）和０．７６１／ｈ·ｉｎｄ（ＰＯＭ）．１１月和９月水温在７℃和２５℃左右时其滤水率均降低至１７℃时的１／３～１／５左右。由此反映出这两种海鞘的生理现象和生活规律及与环境因子的关系。
In Sangqiu Bay, simulated water flow method was used to determine the water filtration rate of biofilm-attached biocarp ascidian and ascidian. The results showed that the same species of sea squirt in different seasons its water filtration rate changes with the water temperature. In the experimental water temperature range, when the water temperature was around 17 ℃ in May, the water filtration rate was the highest, with 3.19l / h · ind (chl-a) and 4.531 / h · ind 0.731 / h · ind (chl-a) and 0.761 / h · ind (POM). In November and September when the water temperature was about 7 ℃ and about 25 ℃, the water filtration rate was reduced to about 1/3 ~ 1/5 at 17 ℃. This reflects the two kinds of ascidian physiological phenomena and life patterns and environmental factors.