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Development of anoxia in the small coastal sea lake, Rogoznica lake (eastern Adriatic coast). (CROSBI ID 471789)

Prilog sa skupa u časopisu | izvorni znanstveni rad | međunarodna recenzija

Ciglenečki, Irena ; Kodba, Zvonimir ; Viličić, Damir ; Carić, Marina ; Ćosović, Božena Development of anoxia in the small coastal sea lake, Rogoznica lake (eastern Adriatic coast). // Rapports et procès verbaux des réunions - Commission internationale pour lNULLexploration scientifique de la mer Méditerranée / Maldonado, A. ; Millot, C. ; Fowler, S. et al. (ur.). 1998. str. 242-243

Podaci o odgovornosti

Ciglenečki, Irena ; Kodba, Zvonimir ; Viličić, Damir ; Carić, Marina ; Ćosović, Božena

engleski

Development of anoxia in the small coastal sea lake, Rogoznica lake (eastern Adriatic coast).

Variations of temperature, salinity and concentration of dissolved oxygen, as well as vertical distribution of dissolved organic matter (DOC), surface active substances (SAS), phytoplankton, nutrients (NH4, NO3, NO2, PO4, SiO4) and reduced sulfur compounds in the small, intensely eutrophicated, 15 m deep sea-lake, Rogoznica Lake, have been investigated during different seasons in 1996. Anoxic conditions in the lake and high concentration of sulfur compounds (up to 10^-4M, mainly in the form of sulfide) were detected below 12 m depth during periods of stable stratification. Also, at the same time below 10 m depth, relatively high concentrations of organic matter (SAS up to 0.3 mg dm^-3 equv. Triton-X-100, DOC up to 0.22 mM), SiO_4^4- (up to 112 microM) and PO_4^3- (up to 1.9 microM) were detected, indicating the start of more pronounced remineralization. The stratification and mixing of lake water in 1996 were greatly influenced by rainfall as shown from decreased salinity in deeper waters. During the spring 1996 high phytoplankton activity over the entire water column and extremely high production of oxygen (oxygen saturation uop to 300%) probably prevented the expected development of anioxia from occuring.

organic matter; phytoplankton; sulphur; sulphide; oxygen; anoxic conditions; halocline

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Podaci o prilogu

242-243.

1998.

nije evidentirano

objavljeno

Podaci o matičnoj publikaciji

Rapports et procès verbaux des réunions - Commission internationale pour lNULLexploration scientifique de la mer Méditerranée

Maldonado, A. ; Millot, C. ; Fowler, S. ; Gutnick, D.

Monte Carlo: Commission Internationale pour l'exploration scientifique de la Mer Mediterranee

0373-434X

Podaci o skupu

Congres de la Commission Internationale pour l' Exploration Scientifique de la Mer Mediterranee (35 ; 1998)

poster

01.06.1998-05.06.1998

Dubrovnik, Hrvatska

Povezanost rada

Geologija, Kemija, Biologija