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Laboratory tests of ammonium and barley straw extract as agents to suppress abundance of the harmful alga Prymnesium parvum and its toxicity to fish.
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- Additional Information
- Source:
Publisher: Pergamon Press Country of Publication: England NLM ID: 0105072 Publication Model: Print-Electronic Cited Medium: Print ISSN: 0043-1354 (Print) Linking ISSN: 00431354 NLM ISO Abbreviation: Water Res Subsets: MEDLINE
- Publication Information:
Original Publication: Oxford, Pergamon Press.
- Subject Terms:
- Abstract:
Prymnesium parvum is a harmful alga whose blooms can cause fish kills in brackish waters. Two potential suppressants of this alga were tested, ammonium and barley straw extract (BSE), at temperatures of 10, 20 and 30 degrees C. Laboratory batch cultures were grown for 3 weeks at each temperature, with weekly doses of ammonium or BSE at either low or high levels, or a no-dose control treatment. The growth rate of P. parvum during exponential phase was highest at 20 degrees C and lowest at 10 degrees C, and was stimulated by the highest ammonium dose. Only cultures grown at 20 degrees C were toxic to fish. The highest ammonium dose abolished such toxicity and reduced the endpoint population density of P. parvum. BSE did not reduce the exponential growth rate, endpoint density, or toxicity to fish of P. parvum. The results support the use of ammonium additions, but not BSE, to suppress harmful blooms of P. parvum in those circumstances where the possible disadvantages can be managed.
- Accession Number:
0 (Marine Toxins)
0 (Plant Extracts)
0 (Quaternary Ammonium Compounds)
1406-65-1 (Chlorophyll)
YF5Q9EJC8Y (Chlorophyll A)
- Publication Date:
Date Created: 20070501 Date Completed: 20070904 Latest Revision: 20181201
- Publication Date:
20240829
- Accession Number:
10.1016/j.watres.2007.03.025
- Accession Number:
17467032
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