Transactions of KarRC RAS :: Scientific publications
Transactions of KarRC RAS :: Scientific publications

Transactions of KarRC RAS :: Scientific publications
Karelian Research Centre of RAS
ISSN (print): 1997-3217
ISSN (online): 2312-4504
Transactions of KarRC RAS :: Scientific publications
Background Editorial committee Editorial Office For authors For reviewer Russian version
Transactions of KarRC RAS :: Scientific publications

Electronic Journal OJS



Series

Biogeography

Experimental Biology

Mathematical Modeling and Information Technologies

Precambrian Geology

Ecological Studies

Limnology and Oceanology

Research in the Humanities (2010-2015)

Region: Economy and Management (2012-2015)



Issues

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

1999-2008


SCIENTIFIC PUBLICATIONS
А.В. Толстиков, Н.Е. Галахина, Р.Э. Здоровеннов.
Гидрофизические и гидрохимические исследования в эстуарии реки Кемь в сентябре 2019 г
A.V. Tolstikov, N.E. Galakhina, R.E. Zdorovennov. Hydrophysical and hydrochemical studies in the Kem' river estuary in September 2019 // Transactions of Karelian Research Centre of Russian Academy of Science. No 4. Limnology. 2020. Pp. 21-31
Keywords: hydrophysical studies; hydrochemical regime; estuary; tidal dynamics; pollution
Hydrophysical and hydrochemical surveys of the Kem’ river estuary were implemented on September 4-5, 2019. The vertical distribution of temperature, salinity, chlorophyll-a, turbidity, and oxygen were studied, and chemical analysis of the water was carried out (pH, electrical conductivity, mineral composition, nutrient content, organic matter, total iron and manganese, pollutants and suspended solids). New data were obtained on the distribution of these parameters depending on the phases of the tide. Temperature, salinity, turbidity and chlorophyll-a are typical for this time of year. Water in the Kem’ River is low-TDS, mesohumic, mesotrophic. Nitrogen is mostly in organic form, while the concentration of its mineral forms is quite low, which is typical of surface waters in the humid zone. Organic matter is mainly represented by natural allochthonous matter (77-80%) incoming from the catchment. Among the pollutants, the content of oil products and some heavy metals was determined. The MPC for lead was slightly exceeded in the river around the railway bridge. The MPC for total iron and manganese was exceeded in water bodies of significance for fisheries. The content of these elements in the Kem’ River water was 0.55 mg/l (MPC=0.1 mg/l) and 0.32 mg/l (MPC=0.01 mg/l), respectively, which is a geochemical feature of the region’s waters rather than an indicator of pollution. These results are consistent with previously published data.
Indexed at RSCI


  Last modified: May 7, 2020