Nutrient inputs from two major rivers into the cilician basin of the north-eastern Mediterranean Sea

IF 1 4区环境科学与生态学 Q4 OCEANOGRAPHY Oceanological and Hydrobiological Studies Pub Date : 2023-06-01 DOI:10.26881/oahs-2023.2.08

M. Türkeri, Suat Marankoz, Özgur Özbay, Ismail Akçay, M. Alp

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Abstract

Abstract In this study, dissolved nutrients concentrations were measured monthly at downstream points of the two regional rivers (the Berdan and Göksu rivers) flowing into the Cilician Basin of the North-eastern (NE) Mediterranean Sea. The dissolved nutrients data obtained between September 2021 and August 2022 were used to determine riverine nutrient fluxes. This study showed that spatial and temporal variations were recorded in nutrients concentrations of the two regional rivers with the maximum values consistently recorded in the Berdan River having lower volume fluxes. The annual nutrient inputs of the two regional rivers indicated that higher amounts of dissolved nutrients were carried by the Göksu River due to its higher volume flux rate. The calculated molar ratios from total nitrogen (TN) and phosphorus (TP) fluxes ranged from 13 in the Göksu River to 22 in the Berdan River. The higher TN/TP molar ratio compared to the classic Redfield Ratio of N/P in the Berdan River is very likely to modify nutrient dynamics leading to further eutrophication in the shelf waters of the NE Mediterranean Sea.

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两条主要河流向地中海东北部西里西亚盆地输送的营养物质

在本研究中，每月测量了流入地中海东北部(NE)西利西亚盆地的两条区域河流(伯尔丹河和Göksu河)下游各点的溶解营养物浓度。2021年9月至2022年8月期间获得的溶解营养素数据用于确定河流养分通量。研究表明，两个区域河流的营养物质浓度存在时空变化，其最大值一致出现在伯尔丹河，体积通量较小。2条区域河流的年养分输入表明，Göksu河因其体积通量率较高而携带了较多的溶解养分。计算得到的总氮(TN)和总磷(TP)的摩尔比在Göksu河为13，在卑尔但河为22。与经典的Redfield N/P比值相比，伯尔丹河较高的TN/TP摩尔比很可能改变营养动态，导致地中海东北部陆架水域进一步富营养化。

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来源期刊

Oceanological and Hydrobiological Studies 地学-海洋学

CiteScore

1.70

自引率

11.10%

发文量

审稿时长

>12 weeks

期刊介绍： Oceanological and Hydrobiological Studies is an international journal published by the Institute of Oceanography, University of Gdańsk in Poland. The journal has 4 issues per year and contains papers on all aspects of the marine environment and hydrobiology. All manuscripts are reviewed by editors and independent experts. Based on the referees'' recommendations, the Editor will make a decision on whether to accept a contribution. All articles are published in English. The journal is open to all matters concerning the water environment, thus providing the readers with a wide spectrum of topics in every issue.