Research ArticleOpen accessEvery word in the titleBioactivity of the Alkaloids, Norharman and L-N-Methylcrotonosine/LinearisineMargelette Ellis-Tabanor, Dwight Robinson, Eric HyslopThe toxic effects of the alkaloids, Norharman and a mixture of L-N-Methylcrotonosine/Linearisine (M/L mixture), on two organisms, Gambusia puncticulata and Veronicella sloanei were determined. The effect of the alkaloids on the fecundity of Thiara granifera was also investigated. Norharman was harmless to G. puncticulata but the M/L mixture inflicted 55.5% mortality on fish populations. The alkaloids had narcotizing, repellent and … …OnLine Journal of Biological Sciences, Vol. 15, Issue 1 · 11 Apr 2015 · 7,202 accessesView PDFCite