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TRACE METALS IN GIANT KELP, MACROCYSTIS
Author(s) -
North Wheeler J.
Publication year - 1980
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1980.tb07742.x
Subject(s) - kelp , macrocystis pyrifera , biology , frond , upwelling , sporophyte , juvenile , algae , environmental chemistry , botany , ecology , chemistry
Concentrations of 38 elements present in Macrocystis tissues are listed. Mean concentrations of Cu, Zn, Fe, and Mn were similar for samples of juvenile and adult sporophytes from field sites. Cu in Macrocystis tissues rose above background levels when concentrations of 0.05 to 0.1 μ m were added to the culturing medium. Above‐normal accumulation for Zn occurred at 0.1 μ m and for Fe at 10 μ m . Tissue Mn appeared independent of the ambient Mn concentration over the ranges studied. Computations indicated that upwelling is important for N and P renewal to Macrocystis beds but may be less significant for import of trace metals.