 Ranging of sampling places in 5 classis on the basis of the phytoplankton biomass expressed as chlorophyll a concentrations (µg Chl a L-1). Due to big seasonal fluctuations there are presented geometrical means of chlorophyll a concentrations during the year.
Tabele 1: Classis of ecological status, ecological quality ratio (EQR) and class limits of phytoplankton biomass expressed as chlorophyll a concentrations.*
EQR | Class | Chl a (µg L-1) | 1 | reference | 1,02 | 0,80 | high (H) | 1,27 | 0,54 | good (G) | 1,87 | 0,36 | moderate (M) | 2,81 | 0,18 | poor (P) | 5,62 | < 0,18 | bad (B) | > 5,62 |
* Lipej, L., Mozetic, P., Orlando-Bonaca, M., Mavric, B., Sisko, M., Bettoso, N., 2007. Opredelitev ekoloskega stanja morja v skladu z Vodno direktivo (Water Framework Directive, 2000/60/EC): dopolnjeno zaključno porocilo, (Poročila MBP - Morska biološka postaja, 96): pp 180 str. | | EQR Chl a for year 2003
| EQR Chl a for year 2004 | | | EQR Chl a for year 2005 | EQR Chl a for year 2006 | |
| EQR Chl a for year 2007 |
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Trophic status expressed as TRIX index calculated on chlorophyll a concentrations and nutrient concentrations (nitrogen and phosphorus solts).
Tabele 2: Trophic status as TRIX index ** Trophic status
| TRIX indeks | elevated | 0-4 | good | 4-5 | mediocre | 5-6 | bad | 6-10 |
** Vollenweider in sod., 1998. Characterization of the trophic conditions of marine coastal waters, with special reference to the NW Adriatic Sea: Proposal for a trophic scale, turbidity and generalized water quality index. Environmetrics 9(3): 329-357. | | Trophis status as TRIX index for year 2003
| Trophis status as TRIX index for year 2004 | | | Trophis status as TRIX index for year 2005 | Trophis status as TRIX index for year 2006 | |
| Trophis status as TRIX index for year 2007 |
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Prepared by: Milijan Sisko, Biology graduate - Marine Biology Station Piran National Institute for Biology
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