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The Chrysochromulina polylepis bloom in Scandinavian waters during spring 1988

1989; American Geophysical Union; Linguagem: Inglês

10.1029/ce035p0383

2329-5252

Einar Dahl, Odd Lindahl, E. Paasche, Jahn Throndsen,

Protist diversity and phylogeny

The Kattegat-Skagerrak area (Fig. 1), the eastward extension of the North Sea which is bordered by Denmark, Norway and Sweden, was the scene of an unusual algal bloom in May and June, 1988. The organism responsible was the Prymnesiophycean flagellate Chrysochromulina polylepis. The bloom, which covered an area of approximately 60,000 square kilometres, was exceptional in several ways. Previous mass occurrences of this species were not on record, and no other species of Chrysochromulina had until then occurred in bloom proportions except very locally. The C. polylepis bloom turned out to have unexpected toxic properties, doing harm to trout and salmon farms in coastal inlets as well as to a wide selection of organisms in the natural habitat.