Cadmium partition coefficients of cultured benthic foraminifera Ammonia beccarii
نویسندگان
چکیده
منابع مشابه
Organic matter from benthic foraminifera (Ammonia beccarii) shells by FT-IR spectroscopy: A study on Tupilipalem, South east coast of India
Fourier Transform Infrared Spectroscopy (FTIR) was used to study the variations in organic matters of benthic foraminifera (Ammonia beccarii) from four samples collected from beach environments from brackish environments along Tupilipalem coast (South east coast of India). Common absorption bands were observed as peaks in the range of 3600-3400 cm-1, 3000-2850 cm-1, 1750-1740 cm-1, 1640-1600 cm...
متن کاملBa incorporation in benthic foraminifera
Barium (Ba) incorporated in the calcite of many foraminiferal species is proportional to the concentration of Ba in seawater. Since the open ocean concentration of Ba closely follows seawater alkalinity, foraminiferal Ba /Ca can be used to reconstruct the latter. Alternatively, Ba /Ca from foraminiferal shells can also be used to reconstruct salinity in coastal settings in which seawater Ba con...
متن کاملSurviving anoxia in marine sediments: The metabolic response of ubiquitous benthic foraminifera (Ammonia tepida)
High input of organic carbon and/or slowly renewing bottom waters frequently create periods with low dissolved oxygen concentrations on continental shelves and in coastal areas; such events can have strong impacts on benthic ecosystems. Among the meiofauna living in these environments, benthic foraminifera are often the most tolerant to low oxygen levels. Indeed, some species are able to surviv...
متن کاملDithiocarbamates and cadmium metabolism: further correlations of cadmium chelate partition coefficients with pharmacologic activity.
N,N-bis(beta-Hydroxyethyl)dithiocarbamate (DHDC), N-methyl-N-hydroxyethyldithiocarbamate (MHDC), and N-ethyl-N-hydroxyethyldithiocarbamate (EHDC) were compared for their relative efficacies in promoting organ mobilization and excretion of metallothionein-bound cadmium (Cd). An attempt was made to correlate certain aspects of their pharmacodynamic properties with the octanol/aqueous partition co...
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ژورنال
عنوان ژورنال: GEOCHEMICAL JOURNAL
سال: 2004
ISSN: 0016-7002
DOI: 10.2343/geochemj.38.271