Examining the impact of water quality and meteorological drivers on primary productivity in the Baltic Sea

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin Pub Date : 2024-11-20 DOI:10.1016/j.marpolbul.2024.117266

Sachin Budakoti

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Abstract

The Baltic Sea highly susceptible to the proliferation of Phytoplankton blooms. Present work examines the long-term trend and spatio-temporal variability of satellite derived chlorophyll concentration (Chl a) in the Baltic Sea during the period 2004–2021. Furthermore, the influence of water quality and meteorological parameters on Baltic Sea primary productivity has been analyzed using robust Generalized Additive Models (GAM) and Granger Causality statistical test. Statistically significant increasing trend in chlorophyll a concentration is observed in the Baltic Sea at the 95 % confidence interval. GAM model reveals that the most significant controlling factor is sea surface temperature (p < 0.0001), followed by nitrate and phosphate. Both GAM and Granger Causality tests confirm that water quality parameters are the major drivers in limiting the growth of Phytoplankton blooms in the Baltic Sea. Summer bloom shows in-phase relationship with Sea surface temperature and out of phase relationship with the phosphate nutrient.

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研究水质和气象因素对波罗的海初级生产力的影响。

波罗的海极易受到浮游植物大量繁殖的影响。本研究探讨了 2004-2021 年期间波罗的海卫星得出的叶绿素浓度（Chl a）的长期趋势和时空变异性。此外，还利用稳健的广义相加模型（GAM）和格兰杰因果关系统计检验法分析了水质和气象参数对波罗的海初级生产力的影响。据统计，在 95% 的置信区间内，波罗的海叶绿素 a 浓度呈明显上升趋势。GAM 模型显示，最重要的控制因素是海面温度（p

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Marine pollution bulletin 环境科学-海洋与淡水生物学

CiteScore

10.20

自引率

15.50%

发文量

1077

审稿时长

68 days

期刊介绍： Marine Pollution Bulletin is concerned with the rational use of maritime and marine resources in estuaries, the seas and oceans, as well as with documenting marine pollution and introducing new forms of measurement and analysis. A wide range of topics are discussed as news, comment, reviews and research reports, not only on effluent disposal and pollution control, but also on the management, economic aspects and protection of the marine environment in general.