Rn. Head et al., THE HYDROGRAPHY AND BIOLOGY OF A BLOOM OF THE COCCOLITHOPHORID EMILIANIA-HUXLEYI IN THE NORTHERN NORTH-SEA, Journal of sea research, 39(3-4), 1998, pp. 255-266
In June/July 1994 a study was made of a small bloom of the coccolithop
horid Emiliania huxleyi in an area of the North Sea to the east of the
Shetland Islands. Observations on the hydrography of the study area i
ndicated the bloom was associated with Atlantic water and was confined
to an area in which a stable shallow mixed layer had formed. There wa
s no evidence to suggest association of horizontal physical structure
with the bloom development. High cell densities of >1-6 x 10(6) cells
dm(-3), together with low concentrations of PIC (<50 mu g dm(-3)) and
detached liths (2-3 x 10(4) liths (-3)) indicated that the bloom was s
tudied at an early stage of development. Biochemical and physiological
observations cm indicated active growth was taking place. The results
presented are discussed in comparison with previous studies carried o
ut in both oceanic and shelf seas. (C) 1998 Elsevier Science B.V. All
rights reserved.