New Zealand Journal of Marine and Freshwater Research abstracts

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Dinoflagellate resting cysts isolated from sediments in Marlborough Sounds, New Zealand

RUTH P. BALDWIN

Division of Marine and Freshwater Science Department of Scientific and Industrial Research Private Bag, Kilbirnie, Wellington, New Zealand

Abstract Seventeen species of dinoflagellate resting cysts have been recorded for the first time in New Zealand. Isolated from sediments at 93 locations in the Marlborough Sounds, these were Gonyaulax spinifera, G. grindleyi, G. polyedra, G. digitalis, Gonyaulax sp., Protoperidinium sub-inerme, P. pentagonum, P. conicum, P. oblongum, P. leonis, P. cf punctulatum, P. cf. conicoides, Per-idinium stellatum, Peridinium sp., Scrippsiella tro-choidea, Polykrikos schwartzii, and Diplopsalis sp. here possible their identities were confirmed by hatching experiments yielding live motile cells. Greatest cyst concentrations and species diversity were found in Kenepuru Sound and Tennyson Inlet. These areas may be more likely to harbour toxic species causing paralytic shellfish poisoning (PSP) or diarrhetic shellfish poisoning (DSP) if these were to appear in the future.

Keywords dinoflagellate; resting cyst; Marlborough Sounds; Gonyaulax; Protoperidinium; Peridinium; Scrippsiella trochoidea; Polykrikos schwartzii; Diplopsalis; distribution

New Zealand Journal of Marine and Freshwater Research, 1987, Vol. 21: 543-553 0028-8330/87/2104-0543$2.50/0 © Crown copyright 1987 Received 10 October 1986; accepted 14 January 1987

PDF file of entire paper: medium quality (1832K); (scanned from paper original: notes about this process)

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