Abstract
Two separate studies in different oceanic regions provide evidence for the production of methyl bromide (CH3Br) by the prymnesiophyte Phaeocystis. A sampling program to study the seasonal cycle of CH3Br in a coastal area demonstrated that the seawater was supersaturated with respect to CH3Br for over 3 months of the year. The greatest saturation was observed during a bloom of Phaeocystis, Also, in situ field measurements demonstrated that CH3Br was supersaturated over a large region of the northeast Atlantic. A positive correlation was observed between CH3Br and dimethylsulphoniopropionate (DMSP), indicating that there was a source common to both compounds. An accessory pigment, hexanoyloxyfucoxanthin, which indicates the presence of prymnesiophytes, also correlated positively with CH3Br. (C) 1999 Elsevier Science B.V. All rights reserved.
Original language | English |
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Pages (from-to) | 267-285 |
Number of pages | 19 |
Journal | Marine Chemistry |
Volume | 64 |
Issue number | 4 |
Publication status | Published - 1999 |
Keywords
- MOLECULAR-WEIGHT HALOCARBONS
- HALOGENATED ORGANIC-COMPOUNDS
- PHAEOCYSTIS
- Chemistry, Multidisciplinary
- BLOOM
- CULTURES
- ICE-ALGAE
- DIMETHYL SULFIDE
- SULFUR EMISSIONS
- Oceanography
- GREENLAND SEA
- ATMOSPHERIC CH3BR