Primary production studies during aGyrodiniumcf.aureolum(Dinophyceae) bloom in the western English Channel
✍ Scribed by V. M. T. Garcia; D. A. Purdie
- Book ID
- 104734313
- Publisher
- Springer-Verlag
- Year
- 1994
- Tongue
- English
- Weight
- 873 KB
- Volume
- 119
- Category
- Article
- ISSN
- 0025-3162
No coin nor oath required. For personal study only.
✦ Synopsis
Water column production measurements were made during a bloom of the marine dinoflagellate Gyrodinium cf. aureolum in the Western English Channel in July 1987. The bloom was sampled over a period of 5 d, and primary production was measured using the oxygen light and dark bottle method and the I4C technique. The photosynthetic quotient (PQ) varied between 1.2 and 3.7. During the period sampled, the proportion of phaeopigments significantly increased (from < 5 to > 50%) and mixed layer dissolved oxygen saturation decreased from 133 to 114%. A model was used to determine gross water column productivity in the surface mixed layer on two days, and net production values were shown to be close to zero or slightly negative. Comparisons of production values are made with other published G. cf. aureolum bloom data.