The tolerance to quickly-changed temperature and salinity, and gradually-changed temperature and salinity in Sagitta crassa were studied.
研究强壮箭虫对突变温度、突变盐度和渐变温度、渐变盐度的耐受性。
The feeding selectivity of Sagitta crassa, some ecological factors effect to the feeding rate and their diurnal feeding rhythm were experimentally studied in this paper.