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Lateral Phytoplankton Fluxes in the Bays of the Karelian Coast in Autumn 2018
Oceanology ( IF 1 ) Pub Date : 2021-07-15 , DOI: 10.1134/s0001437021030103
M. V. Mityaev 1 , M. V. Gerasimova 1 , E. I. Druzhkova 1
Affiliation  

Abstract

In the fall of 2018, studies of suspended particulate matter and its organic part in the water column and their lateral flux on the Karelian coast of the White Sea were carried out. The concentration of suspended particulate matter varied from 0.42 to 0.93 μg/L, and the concentration of Corg ranged from 124 to 249 μg/L. In the water column, 25 registration taxa of phytoplankton were recorded; it was shown that its species composition changed from the surface to the bottom. The lateral flux values varied from 159 to 439 μg m–2 h–1. As part of lateral flux, 49 phytoplankton taxa were revealed. It was shown that, depending on the tidal cycle phase, not only the quantitative characteristics of the lateral flux of phytoplankton change, but also the species composition of microalgae. In the tidal phase, more organic matter enters the inner regions of the bays than is carried out from these areas to the low-tide phase. At high tide, the proportion of phytoplankton organisms in the lateral flux is more than 80%; at low tide, it is less than 55%.



中文翻译:

2018 年秋季卡累利阿海岸海湾的侧向浮游植物通量

摘要

2018年秋季,开展了白海卡累利阿海岸水体悬浮颗粒物及其有机部分及其侧向通量研究。悬浮颗粒物浓度范围为0.42~0.93 μg/L,C org浓度范围为124~249 μg/L。在水体中,记录了25个浮游植物登记分类群;结果表明,它的物种组成从表面到底部发生了变化。横向通量值从 159 到 439 μg m –2 h –1. 作为横向通量的一部分,揭示了 49 个浮游植物分类群。结果表明,取决于潮汐周期阶段,不仅浮游植物横向通量的数量特征发生变化,而且微藻的物种组成也会发生变化。在潮汐阶段,进入海湾内部区域的有机物质多于从这些区域进入低潮阶段的有机物质。涨潮时,侧向通量中浮游植物生物的比例超过80%;退潮时低于55%。

更新日期:2021-07-15
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