Phytoplankton Ecology of the Saronicos Gulf, Aegean Sea. Ignatiades, L., N. Moschopoulou, M. Karydis and A. Vassiliou, 1983.

Study Extent

Ecological investigation of Saronicos Gulf during January-December 1980.

Sampling

Phytoplankton samples were collected with a van Dorhn sampler at 1 and 40 m depth. Samples were preserved with Lugol-acetate solution and analysed quantitatively (in number of cells/liter) and qualitatively in an inverted microscope (Utermohl, 1931). Samples for chlorophyll-a determinations were filtered on ship board through MILLIPORE (Type AA) filters, which were treated immediately as described by Strickland and Parsons (1968). Temperature was measured with inverted thermometers. Oxygen determination was carried out shipboard using the Winkler method as suggested by Strickland and Parsons (1968). Salinity was measured in the laboratory on an inductively coupled salinometer (type C.S.I.R.O.). Samples for nutrient analysis were filtered immediately after collection, kept frozen at -20 oC and analysed within the following 2-3 days. Determinations of phosphate, nitrate, nitrite, silicate, organic nitrogen and organic phosphorus were made after Strickland and Parsons (1968). Ammonia was determined by the method of Liddicoat et al.,(1976).

Quality Control

Stations were plotted for visual check. Scientific names were mapped using the online taxon match tool of WoRMS.

Method steps

1. 36 cruises 101,202,303,104,205,306,107,208...(the number in front of the sampling event-fieldnumber)

1. Bacillariophyceae
   rank: class
2. Dinophyceae
   rank: class
3. Cyanophyceae
   rank: class
4. Dictyochophyceae
   rank: class
5. Cryptophyceae
   rank: class
6. Euglenoidea
   rank: class
7. Pavlovophyceae
   rank: class
8. Prasinophyceae
   rank: class
9. Dinoflagellata incertae sedis
   rank: class

Area of Saronicos Gulf, Aegean Sea.9 stations(S1,S2,S3,S4,S5,S6,S7,S8,S9)