Growth rates of Antarctic marine phytoplankton in the Weddell Sea
Growth rates of Antarctic marine phytoplankton in the Weddell Sea
复制标题
威德尔海南极海洋浮游植物的生长速度
DOI：
10.3354/meps041267
复制
发表时间：
1987
影响因子：
2.5
通讯作者：
A. Spies
中科院分区：
文献类型：
--
作者：
A. Spies
在-1 ℃、光照度45 ° E、水温12 s l的条件下，对威德尔海夏季表层沃茨中的天然微型浮游生物进行了培养。环境养分浓度高，足以支持生物量的快速积累。优势硅藻组合的最大生长速率和世代时间由连续的细胞计数确定。生长速率范围为0.38 - 1.33分裂日龄，世代时间范围为18.0 - 63.2小时日龄。因此，在低温下快速生长是可能的;威德尔海浮游植物的生长速度与温带地区相当。
Natural microplankton from summer surface waters of the Weddell Sea was incubated in 10 1 Nalgene* flasks at -1 "C and irradiance 45 ~ E i n s t n 1 2 s l . Ambient nutrient concentrations were high enough to support rapid biomass accun~ulation. Maximum growth rates and generation times of the dominant diatom assemblages were determined by successive cell counts. Growth rates ranged from 0.38 to 1.33 divisions d l and generation times varied from 18.0 to 63.2 h d iv i s ion ' . Thus, rapid growth at low temperatures is possible; growth rates of Weddell Sea phytoplankton are comparable to those of temperate latitudes.