The higher concentration of nitrate, phosphate, and sulphate at low tide might be attributed to the higher abundance of chrysophytes and euglenoids
at low tide.
The term phytoplankton encompasses a heterogenous set of microscopic eukaryotic lineages, resulting in a broad diversity of not related groups such as green algae, diatoms, dinoflagellates, and euglenoids
, among others (Graham et al., 2009).
Cryptophyceae (Cryptomonads) Cryptomonas obovata Skuja Euglenophyceae (Euglenoids
) Phacus longicauda (Ehr.) Duj.
aeruginosa and phytoplankton: The dominant species of phytoplankton which were found in prawn and fish ponds were green algae, dinoflagellates and euglenoids
, whereas cyanobacteria were found in lower amount in fish pond.
pellicle: A protein layer located just inside the plasma membrane in euglenoids
They also found cyanobacteria, chrysophytes and cryptophytes were dominant at times while dinoflagellates, chlorophytes and euglenoids
appeared occasionally abundant, but were relatively minor components on an annual basis.
were only present when Chlorophyta were not dominant (Fig.