title: Levels, spatial variation and compartmentalization of trace elements in brown algae Cystoseira from marine protected areas of Crimea (Black Sea).
abstract: Levels of Al, Sc, V, Co, Ni, As, Br, Rb, Sr, Ag, Sb, I, Cs, Ba, Th and U that were rarely or never studied, as well as the concentrations of classically investigated Mn, Fe and Zn in brown algae Cystoseira barbata C. Ag. and Cystoseira crinita (Desf.) Bory from the coastal waters of marine protected areas (Crimea, Black Sea), were determined using neutron activation analysis. Spatial variation and compartmentalization were studied for all 19 trace elements (TE). Concentrations of most TE were higher in "branches" than in "stems". Spatial variations of V, Co, Ni and Zn can be related to anthropogenic activities while Al, Sc, Fe, Rb, Cs, Th and U varied depending on chemical peculiarities of the coastal zone rocks. TE concentrations in C. crinita from marine protected areas near Tarkhankut peninsula and Cape Fiolent, identified as the most clean water areas, are submitted as the background concentrations.
authors.affiliation: Institute of Biology of the Southern Seas, 299011 Sevastopol, Russia(1); Department of Neutron Activation Analysis and Applied Research, Division of Nuclear Physics, Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia. Electronic address: alexkravtsova@yandex.ru.
authors.forename: Alexandra V
authors.initials: AV
authors.lastname: Kravtsova
authors.affiliation: Institute of Biology of the Southern Seas, 299011 Sevastopol, Russia(1).
authors.forename: Nataliya A
authors.initials: NA
authors.lastname: Milchakova
authors.affiliation: Department of Neutron Activation Analysis and Applied Research, Division of Nuclear Physics, Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia.
authors.forename: Marina V
authors.initials: MV
authors.lastname: Frontasyeva
mesh_terms: D059038:Black Sea; D004784:Environmental Monitoring / Q000379:methods*; D000459:Phaeophyceae / Q000737:chemistry*; D014131:Trace Elements / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014131:Trace Elements; D014874:Water Pollutants, Chemical
keywords: Black Sea; Cystoseira barbata; Cystoseira crinita; Marine protected areas; Microelements; Neutron activation analysis