Elemental Composition and Interrelations Between Element Concentrations in Marine Finfish, Molluscs and Crustaceans

Fecha de publicación: 1985

Librería: ConchBooks, Harxheim, AlemaniaConchBooks

Vendedor de 3 estrellas

Vendedor de IberLibro desde 1 de marzo de 2007

Condición: Usado

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Descripción del artículo del vendedor

Data on the abundance of 32 chemical elements in a large number of marine finfish, mollusc and crustacean species were subjected to a closer analysis in order to established a number of thier statistical characteristics and to search for possible interspecific links between the concentrations of various elements. The concentrations of the elements usually showed asymmetric frequency distributions: except for H and O, all median concentration values were lower than the average concentrations (the coefficients of skewness of the concentration frequency distributions are positive). The observed variations in element concentrations are best represented by log-normal frequency distributions. Out of the 276 possible element-pair combinations for 24 elements, it appeared that only 46 such element-pairs showed significant inter-specific relationships existing for the concentrations in which they occurred in various animal species. It seemed most plausible that the various elements in living matter simply occur in constant ratios. These ratios are not rigidly fixed but may show a fairly large intra- and interspecific variation. A distinction between essential, neutral and toxic elements does not find support in the available data. The biological concentration factors (the ratios between the biological concentration and the environmental concentration) of various elements increase towards lower environmental concentrations. The biological use of various elements is probably entirely determined by their functional properties and only slightly affected by their environmental availability. 8 pp., 3 figs, gr. 8.…

N° de ref. del artículo W21367

Detalles bibliográficos

Título
Elemental Composition and Interrelations Between Element Concentrations in Marine Finfish, Molluscs and Crustaceans
Autor
Spaargaren, D. H.
Año de publicación
1985

ConchBooks

Harxheim, Alemania

Vendedor de 3 estrellas

Vendedor de IberLibro desde 1 de marzo de 2007

Tarifas de envío de Alemania a Estados Unidos de America

ArtículoDe 25 a 45 días hábilesDe 8 a 14 días hábiles
Primer artículoEUR 24,00EUR 34,00
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Descripción de la tienda

Founded in 1985 we are specialized in worldwide literature on Mollusca and marine invertebrates. Our publishing house has meanwhile published approximately 60 titles on that field of interest. We have stocks of most available international books on Malacology and a huge amount of antiquarian literature, even of the latter most titles are only available once.

Especialidad

Weichtiere / Shells, Schnecken / Snails & Slugs, Muscheln / Bivalves, Tintenfische / Squids / Octopusses / Ammonites, Malacology, Conchology, Marine Biology