Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Imprimir: 0018-8166
ISSN En Línea: 1943-5991

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

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v37.i3.10
13 pages

Productional Characteristics of Lake Ecosystems

A. F. Alimov
Zoological Institute Russian Academy of Sciences St.-Petersburg, Russia

SINOPSIS

In order to obtain additional information on the productional characteristics of lake ecosystems, some components of the best-understood biotic balances of lakes of the moderate and arctic zones of the European part of Russia and Byelorussia were analyzed. The following indices were calculated: the production of animal communities, their biomass, the total biomass of an ecosystem (the sum of the biomass of autotrophic and heterotrophic organisms), the production of an ecosystem (the difference between the primary production of an ecosystem and the total losses due to the process of metabolism of all hydrobionts of an ecosystem), and also P/B and K2-coefficients for an ecosystem. The equations descriptive of relationships between the biomass of zooplankton, zoobenthos, bacterioplankton, and heterotrophic organisms, and also between the appropriate P/B coefficients, and the primary production of an ecosystem were derived. It has been found that an ecosystem can not be considered as a simple sum of its components. It is a system with complicated internal relationships characterized by a high efficiency of functioning (Ke = 0.25), and also by a high rate of turnover of its annual biomass close to 1.