Thus, a total of 20 potentially toxic and harmful phytoplankton taxa were identified consisting of one cyanobacterium, one haptophyte
, one diatom and 17 dinoflagellates.
veneficum at [10.sup.4] cells [mL.sup.-1]; (c) the haptophyte
Among the most frequent organisms belonging to other groups are the chrysophyte Distephanus [= Dictyocha] speculum and haptophytes
of the genus Phaeocystis.
Umbilicosphara foliosa UmbeUosphaera irregularis Umbilicosphara sibogaea Sequence closely related to Braarud osphaera bigelowii Sequences grouping withing genus Phaeocystis Haptophyte
sequences not related to known classes Asterionellopsis sp.
, CCAP 927/14) and Chaetoceros calcitrans (bacillariophyte, CCAP 1010/11).
Phylogenetic analyses indicate that the 19' hexanoloxy-fucoxanthin-containing dinoflagellates have tertiary plastids of haptophyte
The unicellular nanoplanktonic (2-20 [mu]m) haptophyte
alga Emiliania huxleyi provides a hint of the variability of the DMSP lyase enzyme within a species.
Phagotrophy by a plastidic haptophyte
, Prymnesium patelliferum.
Adults of both species were fed a mixture of the following unicellular algae (with Culture Collection of Marine Phytoplankton numbers): the haptophytes
Isochysis lutea (CCMP 463), Isochrysis sp.
At this point we have documented the presence of 35 genera of haptophytes
, 55 genera of diatoms and 6 genera of dinoflagellates.
of the Nervion River estuary, northern Spain.