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Anabaena (Nostocaceae)

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Diagnostic features

Cells arranged in chains like a string of beads (very deep constrictions between cells). Occasional enlarged heterocytes and akinetes. May or may not be surrounded by mucilage, forming a gelatinous mass. Forms thick blue-green scums.

[Anabaena], Tomahawk Lagoon. Photo: Otago Regional Council & Manaaki Whenua Image
Anabaena, Tomahawk Lagoon. Photo: Otago Regional Council & Manaaki Whenua
[Anabaena], Tomahawk Lagoon, X640. Photo: Otago Regional Council & Manaaki Whenua Image
Anabaena, Tomahawk Lagoon, X640. Photo: Otago Regional Council & Manaaki Whenua

Typical habitats

Blooms in nutrient rich lakes/ponds in spring/summer

Classification

Kingdom Bacteria
Phylum Cyanobacteria
Class Cyanophyceae
Order Nostocales
Family Nostocaceae
Common name Cyanobacteria