Document of bibliographic reference 282296

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

Acclimation and toxicity of high ammonium concentrations to unicellular algae

Abstract

A literature review on the effects of high ammonium concentrations on the growth of 6 classes of microalgae suggests the following rankings. Mean optimal ammonium concentrations were 7600, 2500, 1400, 340, 260, 100 μM for Chlorophyceae, Cyanophyceae, Prymnesiophyceae, Diatomophyceae, Raphidophyceae, and Dinophyceae respectively and their tolerance to high toxic ammonium levels was 39,000, 13,000, 2300, 3600, 2500, 1200 μM respectively. Field ammonium concentrations <100 μM would not likely reduce the growth rate of most microalgae. Chlorophytes were significantly more tolerant to high ammonium than diatoms, prymnesiophytes, dinoflagellates, and raphidophytes. Cyanophytes were significantly more tolerant than dinoflagellates which were the least tolerant. A smaller but more complete data set was used to estimate ammonium EC₅₀ values, and the ranking was: Chlorophyceae > Cyanophyceae, Dinophyceae, Diatomophyceae, and Raphidophyceae. Ammonia toxicity is mainly attributed to NH₃ at pHs >9 and at pHs <8, toxicity is likely associated with the ammonium ion rather than ammonia.

WebOfScience code

https://www.webofscience.com/wos/woscc/full-record/WOS:000333946500015

Bibliographic citation

Collos, Y.; Harrison, P.J. (2014). Acclimation and toxicity of high ammonium concentrations to unicellular algae. Mar. Pollut. Bull. 80(1-2): 8-23. http://dx.doi.org/10.1016/j.marpolbul.2014.01.006

Topic

Marine

Is peer reviewed

true