Increased dimethyl sulphide concentrations in sea water from in situ iron enrichment
Article Abstract:
Changes in concentrations of dimethyl sulfide (DMS) in response to in situ iron enrichment were noted in two ecosystem-scale experiments aimed at studying the biological and chemical impact of iron fertilization of surface ocean waters. In the first experiment, there was a limited overall biological response and no substantial changes in DMS concentrations, although concentrations of its algal precursor dimethylsulphoniopropionate increased twofold. In the second experiment, a much stronger biological response was elicited and an increase in DMS concentrations by a factor of 3.5 was observed.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
Dissolved metals in surface sediment and a microbial mat at 100-mum resolution
Article Abstract:
The steep concentration gradients of chemical species in aquatic microenvironments can be measured by optrodes and electrodes, but their range is limited. A thin-film gel technique has been devised to measure Mn, Zn, As and Fe concentrations and fluxes at a 100 mu-m resolution. The techniques has a potential use in other microenvironments with other chemical species.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
Evidence for iron, copper and zinc complexation as multinuclear sulphide clusters in oxic rivers
Article Abstract:
Research is presented concerning the role of inorganic sulphides in the binding of trace metals of zinc, copper, cadmium, mercury, silver and iron in fresh water systems in Connecticut and Maryland.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Delayed activation of the paternal genome during seed development. Neutrality or selection?
- Abstracts: Circulation in the glacial North Atlantic inferred from grain-size measurements. Reduced North Atlantic Deep Water flux to the glacial Southern Ocean inferred from neodymium isotope ratios
- Abstracts: Genetic tools for conservation. Malaria in a warmer world. Ancient nit-pickers
- Abstracts: Hanford nuclear radiation doses assessed. Radiation doses from Ural region. The man who knew doses
- Abstracts: Coherent displacement of atoms during ion irradiation. Wrinkles waiting for G0D(sub 0)T. Multiscale modelling of plastic flow localization in irradiated materials