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dc.contributor.authorЯнко-Хомбах, Валентина Венедиктівна-
dc.contributor.authorБреслер, Володимир М.-
dc.contributor.authorЯнко-Хомбах, Валентина Венедиктовна-
dc.contributor.authorБреслер, Владимир М.-
dc.contributor.authorYanko-Hombach, Valentyna V.-
dc.contributor.authorBresler, Vladimir M.-
dc.identifier.citationEnvironmental Toxicology and Chemistryuk
dc.description.abstractThe acute toxicity of cadmium, copper, and mercury to the benthic epiphytic foraminiferan Pararotaha spinigera (Le Calvez) was investigated using seven different vital cytophysiological and cytochemical methods. The ability to enzymatically hydrolyze the fluorogenic substrates fluorescein diacetate or fluorescein dibutyrate was the most sensitive method of LC50 value determination. The LC50 (24-h) values for cadmium, copper, and mercury determined by this assay with fluorescein diacetate was 0.56, 1.4, and 0.07 pM, respectively. The content of seaweed-derived dissolved organic carbon (DOC), measured by absorbance at 436 nm, produced a dramatic increase of LC50 values for the heavy metals in a dose-dependent manner. “Intact” epiphytic foraminifera attached to seaweeds are less sensitive to acute toxicity of cadmium, copper, and mercury than are “detached”
dc.relation.ispartofseries;Vol 14, No 10-
dc.subjectEpiphytic foraminiferauk
dc.subjectHeavy metalsuk
dc.subjectAcute toxicityuk
dc.subjectLC50 (24-h)uk
dc.titleAcute toxicity of heavy metals for benthic epiphytic foraminifera Pararotalia spinigera (Le Calvez) and influence of seaweed-derived DOCuk
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