Growth and grazing rates of the heterotrophic dinoflagellates Protoperidinium spp. on red tide dinoflagellates
نویسندگان
چکیده
منابع مشابه
Effect of red tide dinoflagellate diet and cannibalism on the bioluminescence of the heterotrophic dinoflagellates
The effects of diet and cannibalism were assessed from changes in the bioluminescence potential of 2 speclvb of the heterotrophic dinoflagellate Protoperidinium fed 4 specles of red tide dinoflagellate prey and also maintained without added prey. The use of bioluminescence as a sensitive indicator of nutritional status and feeding was explored. The bioluminescence of Protoperidinium cf. diverge...
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Sea-surface discolorations due to high concentrations of phytoplankton are called red tides. Their ecological significance is a long standing puzzle, and they are sometimes considered pathological. Here we propose that many red tides, particularly but not exclusively those comprised of certain autotrophic dinoflagellates, are presexual/sexual swarms, essential links in their complex life cycles...
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Carbon acquisition was investigated in three marine bloom-forming dinollagellates-Prorocentrum minimum, Heterocapsa triquetra and Ceratium lineatum. In vivo activities of extracellular and intracellular carbonic anhydrase (CA), photosynthetic O2 evolution, CO2 and HCO3- uptake rates were measured by membrane inlet mass spectrometry (MIMS) in cells acclimated to low pH (8.0) and high pH (8.5 or ...
متن کاملFeeding and grazing impact by small marine heterotrophic dinoflagellates on heterotrophic bacteria.
We investigated the feeding of the small heterotrophic dinoflagellates (HTDs) Oxyrrhis marina, Gyrodinium cf. guttula, Gyrodinium sp., Pfiesteria piscicida, and Protoperidinium bipes on marine heterotrophic bacteria. To investigate whether they are able to feed on bacteria, we observed the protoplasm of target heterotrophic dinoflagellate cells under an epifluorescence microscope and transmissi...
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School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Korea School of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang 37673, Korea Department of Marine Biotechnology, College of Ocean Science and Technology, Kunsan National University, Gunsan 54150, Korea Faculty of Marine Applied Biosciences, ...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 1994
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps106173