title: Effects of polluted and non-polluted sediments on the growth of Gonyaulax tamarensis.
abstract: Cultures of Gonyaulax tamarensis were grown on Hastings medium based on 100%, 10%, 1%, 0.1% and 0% (control) of seawater elutrients of bottom sediments. Both "clean" and heavily polluted sediments were used. Very low concentrations of polluted elutrients (0.01% v/v) slightly enhanced the growth of Gonvaulax tamarensis; greater concentrations of polluted elutrient depressed growth. Elutrient from "clean" sediments did not enhance growth; the depression of growth at any given elutrient concentrate was not  as great as that seen with the polluted elutrients.
mesh_terms: D002734:Chlorophyll / Q000032:analysis; D004141:Dinoflagellida / Q000032:analysis / Q000187:drug effects / Q000254:growth & development*; D056890:Eukaryota / Q000254:growth & development*; D008281:Maine; D014873:Water Pollutants / Q000633:toxicity*; D014874:Water Pollutants, Chemical / Q000633:toxicity
chemical_list: D014873:Water Pollutants; D014874:Water Pollutants, Chemical; D002734:Chlorophyll