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Influence of fish feed composition on oxygen utilization during decomposition of aquaculture effluents (CROSBI ID 191223)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Klanjšček, Jasminka ; Geček, Sunčana ; Legović, Tarzan Influence of fish feed composition on oxygen utilization during decomposition of aquaculture effluents // Aquaculture research, 43 (2012), 12; 1845-1860. doi: 10.1111/j.1365-2109.2011.02994.x

Podaci o odgovornosti

Klanjšček, Jasminka ; Geček, Sunčana ; Legović, Tarzan

engleski

Influence of fish feed composition on oxygen utilization during decomposition of aquaculture effluents

The decomposition of the organic matter, in the form of excess feed and excreted faeces, introduced to the environment by aquaculture can endanger living organisms by lowering oxygen levels. To increase the accuracy of the oxygen utilization assessment, we developed linear (L-MOD) and non-linear models (NL-MOD) for the dynamics of decomposition and accumulation of the organic matter, oxygen utilization and ammonium production. The models are based on mass-balance stoichiometric reactions for conversion of organic matter into bacterial biomass under aerobic conditions. Organic matter is represented by a general chemical formula sensitive to protein, carbohydrate and lipid content. The mass of organic matter is expressed in chemical oxygen demand (COD) units, providing more convenient tracking of oxygen utilization. Degradable part of the organic matter is distinguished from a non-degradable part. The model results are compared with the data sets from simulated aquaculture pond experiment.

fish feed; aquaculture; model; oxygen; decomposition; organic matter; stoichiometry

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o izdanju

43 (12)

2012.

1845-1860

objavljeno

1355-557X

10.1111/j.1365-2109.2011.02994.x

Povezanost rada

Geologija

Poveznice
Indeksiranost