Parameters of individual sponges used in the tank experiments.

The estimated volume of water processed by the whole sponge is also shown for an excurrent velocity (EV) from the osculum of 1 and 2 cm s−1. Note the areas of the oscula are ∼45% smaller than a circle calculated from the “near osculum circumference” due to tapering at the rim of the osculum and the irregular shape of the osculum.本研究同时给出了当出水孔（osculum）处出流速度（excurrent velocity, EV）为1 cm s⁻¹和2 cm s⁻¹时，整个海绵所处理的估算水量。请注意，由于出水孔边缘存在收窄现象且出水孔形状不规则，各出水孔的面积较通过"近出水孔周长"计算得到的圆形面积小约45%。