Library Subscription: Guest
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections
Hydrobiological Journal
SJR: 0.227 SNIP: 0.901 CiteScore™: 0.5

ISSN Print: 0018-8166
ISSN Online: 1943-5991

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v38.i6.10
8 pages

Energy Balance and Ecological Efficiency of Pelagic Communities in the Black Sea

A. N. Grishin
Southern Scientific-Research Institute of Marine Fishery and Oceanography Kerch, Ukraine

ABSTRACT

Based on the analysis of the energy and matter streams at different trophic levels, it is stated that the gross production of phytoplankton became triple, and along with this the lowered efficiency of its utilization lowered at all trophic levels of the ecosystem of the Black Sea in 1992-1994 as compared to 1979. An increased formation of detritus is observed; however, a share of idle detritus in the pelagic zone has risen from 5 to 12% for the last twenty years. Net fish proportion dropped from 2.34·1012 kJ to 0.42·0112 kJ.


Articles with similar content:

Role of Dreissena and Abramis Brama Fry in Changes in the Dynamics and Relationships in Plankton Communities of Experimental Ecosystems
Hydrobiological Journal, Vol.44, 2008, issue 6
N. A. Lapteva, S. A. Kurbatova
Changes in the Species Structure of Fish Population of Sapropelic Lake Nero
Hydrobiological Journal, Vol.43, 2007, issue 3
V. G. Tereshchenko, S. N. Polovkova, L. I. Tereshchenko, S. N. Nadirov
The Growth of New Species in the Black Sea: Chaetoceros throndsenii (Marino, Montresor & Zingone) Marino, Montresor & Zingone in Natural and Experimental Conditions
International Journal on Algae, Vol.13, 2011, issue 3
L. A. Pautova, V. A. Silkin, A. S. Mikaelyan, T. A. Lukashova
Production Characteristics of the Microalga Porphyridium purpureum (Bory) Drew Ross (Rhodophyta) in Batch and Quasi-Continuous Culture
International Journal on Algae, Vol.16, 2014, issue 3
A. V. Borovkov, I. N. Gudvilovich
Macrophytobenthos of the Black Sea coast of the Kerch peninsular (Crimea, Ukraine)
International Journal on Algae, Vol.9, 2007, issue 4
S. Ye. Sadogurskiy