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Distribution of the Dinoflagellate parasite Parvilucifera infectans (Parkinsozoa) along the Swedish coast
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. (Mikrobiell Ekologi)
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. (Mikrobiell Ekologi)
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. (Mikrobiell Ekologi)ORCID iD: 0000-0003-3509-8266
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. (Mikrobiell Ekologi)
2006 (English)In: Aquatic Microbial Ecology, ISSN 0948-3055, E-ISSN 1616-1564, Vol. 43, no 3, 289-302 p.Article in journal (Refereed) Published
Abstract [en]

Dinoflagellate parasites, e.g. Parvilucifera infectans Noren et Moestrup, 1996 can potentially control dinoflagellate blooms and thereby modify plankton communities and nutrient fluxes. Parvilucifera infectans has been detected in Swedish waters, but its distribution is largely unknown. Based on 18S rRNA sequences of 2 P. infectans isolates of different geographic origin (Sweden and Tasmania), we designed 2 primer pairs for specific PCR amplification of rRNA fragments from these parasites. We screened for presence of F infectans in a salinity gradient along the Swedish coastline (2 to 30 parts per thousand, 13 stations) from June to August 2004. Parasites were only detected in July and August at 3 stations in the region with highest salinity (Skagerrak). Presence of parasites was correlated with high abundances of dinoflagellate hosts (Prorocentrum spp., Ceratium spp.) but was also restricted to warm and saline waters. In addition, these stations were characterized by low bacterial abundances, low chl a and low nutrient levels. Parasites were not detected in this region in June, when temperatures were lower (< 15 degrees C) and microzooplankton predators were most abundant. Hence, our study reveals both temporal and spatial patchiness of P. infectans in coastal waters.

Place, publisher, year, edition, pages
2006. Vol. 43, no 3, 289-302 p.
Keyword [en]
Parvilucifera infectans, eukaryotic parasite, 18S rRNA probe, dinoflagellate, harmful algal bloom, Skagerrak, Oresund, Baltic Sea
National Category
Ecology
Identifiers
URN: urn:nbn:se:uu:diva-22987ISI: 000239797100008OAI: oai:DiVA.org:uu-22987DiVA: diva2:50760
Available from: 2007-05-24 Created: 2007-05-24 Last updated: 2017-12-07Bibliographically approved

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Eiler, AlexanderTranvik, LarsBertilsson, Stefan

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