THE FOOD PRODUCTION IN THE SEA AND THE ANNUAL CYCLE OF FAEROESE MARINE BIRDS
THE FOOD PRODUCTION IN THE SEA AND THE ANNUAL CYCLE OF FAEROESE MARINE BIRDS
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海洋中的食物生产和法罗群岛海鸟的年度周期
DOI：
10.2307/3564828
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发表时间：
1955
期刊：
影响因子：
3.4
通讯作者：
F. Salomonsen
中科院分区：
文献类型：
--
作者：
F. Salomonsen
冬季不足以使浮游藻有效地吸收二氧化碳，即使在最上面的水层也是如此。在法罗群岛的海岸外，浮游植物的生产从5月开始，直到8月甚至9月才停止。浮游植物产生期之所以相当长，是因为在这些水域，整个夏季都会发生表层水与富含硝酸盐和磷酸盐的深海水的明显混合。在水团稳定的地区，没有任何底层水上涌，浮游植物的生产量只能维持一个月。在浮游藻类几乎不存在的死冬期过后--只有零星的孢子和细胞--大量的营养盐分出现在表层水层中，并产生旺盛的
the winter period is not sufficiently strong for an effective CO2 assimilation of the plankton algae, even in the uppermost water layers. Off the coasts of the Faeroes the phytoplankton production begins in May and does not cease until in August or even September. The considerable length of the period in which phytoplankton production takes place is due to the fact that in these waters a pronounced mixing of the surface water with deepsea water, rich in nitrates and phosphates, takes place during the whole summer. In areas with stabilized water-masses, without any upwelling of bottom-water, the phytoplankton production will cover one month only. After the dead winter-period, in which the planktonic algae are practically absent-being represented only by scattered spores and cells-large quantities of nutritive salts are present in the surface water layers and give rise to a vigorous