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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
environmental science
Trace metals and radionuclides in macroalgae from Moroccan coastal waters
Environmental Monitoring and Assessment, Volume 182, No. 1-4, Year 2011
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Description
Macroalgae species Codium sp, Bangia atropurpurea, Membranoptera alata, Plocamium cartilagineum, Dictyota dichotoma, Fucus spiralis and Stypocaulon scoparia were collected from seven stations along the north coast of Morocco. Samples were analysed to determine activities of naturally occurring radionuclides ( 210Pb, U isotopes and 40K) and concentrations of metals (Zn, Fe, Co, Cu, Ni, Mn, Pb, Cd, As and Cr) using radiometric and ICP-OES techniques, respectively. Metal concentrations were within ranges reported in the scientific literature, and concentrations of bio-essential elements were in the order Mn>Fe> Zn>Cu in all samples. Brown algae had the highest concentrations of almost all metals, and concentrations decreased in the order brown>red>green algae. With respect to radionuclides, the red alga P. cartilagineum had the highest activities of 210Pb, in most cases an order of magnitude higher than for the green alga Codium sp. 234U and 238U activities in all algae samples were in the range 0.96- 7.61 and 1.16-6.14 Bq/kg dry weight, respectively. Our analyses of radionuclide activities and metal concentrations in marine macroalgae showed large differences among taxa. These results provide insights into which algal species should be used for biomonitoring programmes. © 2011 Springer Science+Business Media B.V.
Authors & Co-Authors
Benkdad, A.
Morocco, Rabat
National Energy Center of Nuclear Science and Technology
Laissaoui, Abdelmourhit
Morocco, Rabat
National Energy Center of Nuclear Science and Technology
Tornero, Maria Victoria
Spain, Cadiz
Csic - Instituto de Ciencias Marinas de Andalucia Icman
Benmansour, Moncef
Morocco, Rabat
National Energy Center of Nuclear Science and Technology
Chakir, El Mahjoub
Morocco, Kenitra
Université Ibn Tofail
Moreno-Garrido, Ignácio
Spain, Cadiz
Csic - Instituto de Ciencias Marinas de Andalucia Icman
Blasco, Julián
Spain, Cadiz
Csic - Instituto de Ciencias Marinas de Andalucia Icman
Statistics
Citations: 19
Authors: 7
Affiliations: 3
Identifiers
Doi:
10.1007/s10661-011-1878-0
ISSN:
01676369
e-ISSN:
15732959
Study Locations
Morocco