Taxonomic revision of Nodularia (Cyanophyceae/Cyanobacteria)
- 1 June 1980
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Botany
- Vol. 58 (11) , 1211-1224
- https://doi.org/10.1139/b80-151
Abstract
Nodularia Mertens ex Bornet & Flahault originally established in 1822, has had a total of 28 taxa described. It is restricted in distribution primarily to brackish coastal waters and inland lakes and ponds. In British Columbia (Canada) these lakes and ponds have extreme ranges of salinity (4–400‰) and temperature (0–35 °C). Laboratory studies of 16 isolates indicated maximum growth at 5–10‰, salinity (range 1–60‰), 25–30 °C, pH 10.0–10.5 (range 7.0–10.5) at light intensity of 6000 lx. No preference was shown for dominant anions (Na+, Mg2+) or cations (Cl−, CO32−, S42−). Sheath and akinete characteristics were variable, whereas vegetative cell shape, heterocyst location, and akinete formation were more stable. Investigation of field-collected material, laboratory-grown cultures, and study of herbarium specimens indicate that all the described taxa belong to either N. harveyana [Thwaites] Thuret ex Bornet & Flahault 1886 or N. spumigena Mertens ex Bornet & Flahault 1886. The latter is named the syntype and lectotype material is designated.This publication has 2 references indexed in Scilit:
- Report on the Freshwater Algae, including Phytoplankton, of the Third Tanganyika Expedition conducted by Dr. W. A. Cunnington, 1904-1905.Journal of the Linnean Society of London, Botany, 1907
- Poisonous Australian LakeNature, 1878