Nutritional diagnosis of phytoplankton in Lake Baikal
Nutritional diagnosis of phytoplankton in Lake Baikal
复制标题
DOI：
10.1046/j.1440-1703.2002.00473.x
复制
发表时间：
2002-03-01
影响因子：
2
通讯作者：
Nakanishi, M
中科院分区：
文献类型：
--
作者：
Genkai-Kato, M;Sekino, T;Nakanishi, M
为了诊断贝加尔湖浮游植物的营养状况，1999年3月、6月、8月和10月在6个站点进行了颗粒碳（PC）、氮（PN）和磷（PP）浓度及其比值的测定调查。PC和PN的浓度低于，和PP的那些相似，那些在另一个中营养湖，除了在站附近的最大的输入河，塞伦加河，贝加尔湖的河口。PC：PN：PP比例为102：13：1，非常接近Redfield比例。该比率相对于时空变化是恒定的。这表明，在贝加尔湖浮游植物暴露于没有缺乏氮，也没有磷。从浮游植物营养状况的角度来看，贝加尔湖可能被视为海洋而不是湖泊。
To diagnose the nutritional status of phytoplankton in Lake Baikal, surveys for the determination of concentrations of particulate carbon (PC), nitrogen (PN) and phosphorus (PP) and their ratios were conducted at six stations in March, June, August and October 1999. The concentrations of PC and PN were lower than, and those of PP were similar to, those in another mesotrophic lake except at the station near the mouth of the largest input river, Selenga River, of Lake Baikal. The PC : PN : PP ratio was 102: 13: 1, considerably close to the Redfield ratio. The ratio was constant against spatiotemporal changes. These indicate that phytoplankton in Lake Baikal were exposed to no deficiency in nitrogen nor phosphorus. From a viewpoint of the nutritional status of phytoplankton, Lake Baikal might be viewed as an ocean rather than as a lake.