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Name derivation:

"Golden colored" -- Golden Chryso- colored –chromulina

 

Classification:

Chrysochromulina  Lackey  1939;  49 of 60 species descriptions are currently accepted taxonomically (Guiry and Guiry 2013).

Order Prymnesiales;  Family Chrysochromulinaceae

 

Morphology:

Biflagellate photosynthetic unicells with 1 – 4 chloroplasts, and with a usually long haptonema that can be straight or coiled as when attaching to a substrate or when rapidly swimming.  Visible only with electron microscopy are organic scales usually covering the plasma membrane.  No eyespot  (Preisig  2011).

 

Similar genera:

Habitat:

Freshwater plankton (rivers and lakes).  C. parva is the most common species (Nicholls 2003).  C. breviterrita (Nicholls et al. 1982) formed a bloom in Northwood Lake, Northwood, NH (USA) in 1978, that produced a “rotten cabbage” odor.  Cause of the bloom is thought to be due to dairy farm waste (Towne and Estabrook 1979).  The NH Water Supply and Pollution Control Commission treated the bloom by dragging CuSO4 crystals behind a power boat.

 

References:

Nicholls, K.H.  Haptophyte algae.  In:  Freshwater Algae of North America.  Eds: J.D. Wehr and R.D. Sheath. (Chapter 13).

Nicholls, K.H., J.L. Beaver, and R.H. Estabrook 1982.  Lakewide odours in Ontario and New Hampshire caused by Chrysochromulina breviturrita Nich. (Prymnesiophyceae).  Hydrobiologia 96:91-95.

Preisig, H.R.  2011.  Phylum Haptophyta (Prymnesiophyta).  In:  The freshwater algal flora of the British Isles.  John, D.M., B.A. Whitton, and A.J. Brook (Eds.).

Towne, R. E. & Estabrook, R. H. (1979) A Trophic Study of Northwood Lake, Northwood, N. H. New Hampshire Water Supply and Pollution Control Commission.