Are offshore phytoplankton susceptible to Karenia brevis allelopathy?
نویسندگان
چکیده
منابع مشابه
Competing phytoplankton undermines allelopathy of a bloom-forming dinoflagellate.
Biotic interactions in the plankton can be both complex and dynamic. Competition among phytoplankton is often chemically mediated, but no studies have considered whether allelopathic compounds are modified by biotic interactions. Here, we show that compounds exuded during Karenia brevis blooms were allelopathic to the cosmopolitan diatom Skeletonema costatum, but that bloom allelopathy varied d...
متن کاملOptical Detection and Assessment of the Harmful Alga, Karenia brevis
Specific objectives of this research include the following: 1) Measurements of inherent and apparent optical properties will be conducted in areas frequented by Karenia brevis bloom events off the west Florida coast, and attempt to identify key optical indices for discriminating blooms of K. brevis from other phytoplankton and other sources of optical variability. 2) We will examine the utility...
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متن کاملToxin-allelopathy among phytoplankton species prevents competitive exclusion
Toxic or allelopathic compounds liberated by toxin-producing phytoplankton (TPP) acts as a strong mediator in plankton dynamics. On an analysis of a set of phytoplankton biomass-data that have been collected by our group in the North-West part of the Bay of Bengal, and by analysis of a three-component mathematical model under a constant as well as a stochastic environment, we explore the role o...
متن کاملReply to Errera and Campbell: No, low salinity shock does not increase brevetoxins in Karenia brevis.
Our paper (1) was undertaken to challenge earlier reports that low salinity stress increases brevetoxin production in Karenia brevis (2). Despite independent negative findings by three laboratories (1), Errera and Campbell still assert that low salinity shock increases cellular brevetoxins (3). Their initial report of >14-fold increases (2) lacks experimental controls. Their correction (2) subs...
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ژورنال
عنوان ژورنال: Journal of Plankton Research
سال: 2014
ISSN: 1464-3774,0142-7873
DOI: 10.1093/plankt/fbu064