Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Imprimir: 0018-8166
ISSN On-line: 1943-5991

Volumes:
Volume 56, 2020 Volume 55, 2019 Volume 54, 2018 Volume 53, 2017 Volume 52, 2016 Volume 51, 2015 Volume 50, 2014 Volume 49, 2013 Volume 48, 2012 Volume 47, 2011 Volume 46, 2010 Volume 45, 2009 Volume 44, 2008 Volume 43, 2007 Volume 42, 2006 Volume 41, 2005 Volume 40, 2004 Volume 39, 2003 Volume 38, 2002 Volume 37, 2001 Volume 36, 2000 Volume 35, 1999 Volume 34, 1998

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v50.i6.100
pages 87-107

Dissolved Carbohydrates in the Surface Water Bodies of Ukraine

P. N. Linnik
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
Ya. S. Ivanechko
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine

RESUMO

Results of the study of the content of dissolved carbohydrates and their seasonal distribution in surface water bodies of various types (lakes, rivers, and reservoirs) are analyzed in the paper. It has been shown that the concentration of organic compounds of this group varies over a wide range − from 0.4 to 4.9 mg/L (in calculating per glucose content) depending on the type of a water body and its trophic state. The highest concentration of carbohydrates was observed in the Ternopol Reservoir located on the Seret River (within the territory of the town of Ternopol) and in the second Kitayevo pond (within the territory of Kiev). In terms of the average per year values, a relative content of carbohydrates varies from 4.7 to 16.4% of the total content of carbon of dissolved organic matter (Corg). Data on the content of this organic matter in various water bodies of the other regions of the world are also given. In the studied water bodies, carbohydrates are represented by the compounds with a wide interval of their molecular mass − from < 1.0 to > 70.0 kDa. However, high molecular compounds (polysaccharides) prevail in their composition. Their contribution to the total content of dissolved carbohydrates on the average accounts for 67.7−83.7%. Seasonal variations in the content of a low molecular fraction of carbohydrates (< 1.0 kDa) are considered.