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首页> 外文期刊>Turkish Journal of Botany >Size-fractionated phytoplankton and nutrient dynamics in the inner part of Izmir Bay,eastern Aegean Sea
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Size-fractionated phytoplankton and nutrient dynamics in the inner part of Izmir Bay,eastern Aegean Sea

机译：爱琴海东部伊兹密尔湾内部规模化的浮游植物和养分动态

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摘要

Izmir Bay has been one of most polluted bays of the Mediterranean for a long time. When the "Big Channel Project" was completed in 2000, sewage flow into the bay ended. Hence, the influence of creeks, which are the only source of water transportationto the inner bay, was investigated in the current study. Monthly samples of creek water and seawater were taken. Basic water quality variables and nutrients were measured. In addition, the phytoplankton community was arrayed into size fractions to assessthe contribution of each size fraction to biomass and pigment concentrations. Analyses showed that the creek waters had very high nutrient concentrations. Although decreasing nutrient concentrations of the sea as compared to past years were detected, results of the analyses showed that the phytoplankton biomass was increased. Minimum and maximum values of nutrient concentrations and chlorophyll-a were 0.23-22.28 uM for ammonium, 1.54-11.77 muM for nitrate, 0.00-3.51 uM for nitrite, 1.99-41.94 muM for silicate, 0.00-5.96 uM for phosphate, and 5.03-30.26 ug/L for chlorophyll-a. Nanoplankton was the dominant phytoplankton group in the inner bay. An increment in picoplankton was detected towards the outer part of the bay. The microplankton biomass was correlated with NH_~+4-N, [Si(OH)_4-Si], and o.PO_4-P. [Si(OH)_4-Si], o.PO_4-P, and microplankton were the most important constituents in the inner bay. Consequently, controlling nutrient concentrations in the creeks might contribute to the cleaning processin Izmir Bay.
机译：长期以来，伊兹密尔湾一直是地中海污染最严重的海湾之一。当“大通道工程”于2000年完成时，污水流入海湾的工作就结束了。因此，在本研究中，对小河的影响进行了研究，小河是向内湾输送水的唯一来源。每月抽取小溪水和海水样本。测量了基本水质变量和养分。另外，将浮游植物群落排列成大小部分，以评估每个大小部分对生物量和色素浓度的贡献。分析表明，小溪水域的养分含量很高。尽管发现海洋养分浓度与过去几年相比有所下降，但分析结果表明浮游植物的生物量有所增加。营养盐和叶绿素a的最小值和最大值分别为：铵0.23-22.28 uM，硝酸盐1.54-11.77μM，亚硝酸盐0.00-3.51 uM，硅酸盐1.99-41.94μM，磷酸盐0.00-5.96 uM和5.03-叶绿素a为30.26 ug / L。纳米浮游生物是内湾的主要浮游植物群。在海湾的外部发现了微微浮游生物的增加。浮游生物的生物量与NH_〜+ 4-N，[Si（OH）_4-Si]和o.PO_4-P相关。 [Si（OH）_4-Si]，o.PO_4-P和浮游生物是内湾中最重要的成分。因此，控制小河中的营养物浓度可能有助于伊兹密尔湾的清洁过程。

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