Search
Search results for
We found
8 results for you
-
The taxonomy and growth of a Crypthecodinium species (Dinophyceae) isolated from a brackish-water fish aquarium
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MW Parrow M Elbrächter MK Krause JM Burkholder NJ Deamer N Htyte EH AllenAn unidentified heterotrophic dinoflagellate found growing in abundance in a brackish-water fish aquarium was isolated and serially cultivated using a fish cell line as the food source. Prominent characteristics of this dinoflagellate included a cingulum that did not fully encircle... -
Impact of tropical storms and drought on the dinoflagellates Karlodinium micrum and Prorocentrum minimum in estuarine rivers of North Carolina, USA
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: EE FensinThe dinoflagellates Karlodinium micrum and Prorocentrum minimum are harmful algal bloom taxa from different parts of the world. They are routinely documented in estuarine rivers in North Carolina, but there have been no known toxic outbreaks of these taxa in... -
Cysts of potentially harmful dinoflagellates, with emphasis on the genus Alexandrium, in Sepetiba Bay (Brazil) during a port survey of GloBallast
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: VB Juliano VMT GarciaSepetiba Bay in south-eastern Brazil has been selected as a pilot demonstration site within the Global Ballast Water Management Programme (GloBallast; IMO/PNUD/GEF). As part of the port baseline survey, a series of 43 sediment cores was taken in triplicate in... -
Sneaking under the toxin surveillance radar: parasitism and sterol content
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AR Place HR Harvey X Bai DW CoatsParasitic dinoflagellates of the genus Amoebophrya infect and kill bloom-forming dinoflagellates, including the toxic species Karlodinium micrum. Strains of K. micrum produce cytotoxic compounds (KmTX) that render cell membranes permeable to a range of small ions and molecules, resulting in... -
The effects of physiology and behaviour on the near-bottom distributions of Kareniabrevis on the West Florida shelf: a numerical study
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GA Sinclair D KamykowskiThe distribution of near-bottom populations of Karenia brevis depends on both cell physiology and behaviour. The migration distance of cells, and the subsequent exposure to light, may vary as a result of the nocturnal uptake of nitrate. The adaptive advantage... -
Phylogenetic diversity of bacteria associated with toxic and non-toxic strains of Alexandrium minutum
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Palacios B Reguera J Franco I MarínMarine planktonic dinoflagellates are usually associated with bacteria, some of which seem to have a symbiotic relation with the dinoflagellate cells. The role of bacteria in dinoflagellate life cycles is not well known and their influence on toxin production is... -
Spatio-temporal variation in density of microphytoplankton genera in two tropical coral reefs of Mauritius
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SB Sadally --- Department of Biosciences, Faculty of Science, Mauritius N Taleb-Hossenkhan --- Department of Biosciences, Faculty of Science, Mauritius R Bhagooli --- Department of Biosciences, Faculty of Science, MauritiusSpatial and temporal (seasonal and interannual) variation in microphytoplankton was investigated at two tropical coral reef sites off Mauritius (Belle Mare [BM] and Flic-en-Flac [FEF]), from 2010 to 2012. Each site was divided into three zones: coast, lagoon and reef... -
Seasonal and sub-seasonal oxygen and nutrient fluctuations in an embayment of an eastern boundary upwelling system: St Helena Bay
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GC Pitcher --- Fisheries Management Branch, Department of Agriculture, Forestry and Fisheries, South Africa TA Probyn --- Fisheries Management Branch, Department of Agriculture, Forestry and Fisheries, South AfricaSeasonal, sub-seasonal and spatial fluctuations in bottom dissolved oxygen (DO) were examined in St Helena Bay, South Africa’s largest and most productive embayment, between November 2013 and November 2014. Alongshore bay characteristics were assessed through comparison of variables along the...