Nitrogenous nutrients promote the growth and toxicity of Dinophysis acuminata during estuarine bloom events.

ABSTRACT: Diarrhetic Shellfish Poisoning (DSP) is a globally significant human health syndrome most commonly caused by dinoflagellates within the genus Dinophysis. While blooms of harmful algae have frequently been linked to excessive nutrient loading, Dinophysis is a mixotrophic alga whose growth is typically associated with prey availability. Consequently, field studies of Dinophysis and nutrients have been rare. Here, the temporal dynamics of Dinophysis acuminata blooms, DSP toxins, and nutrients (nitrate, ammonium, phosphate, silicate, organic compounds) were examined over four years within two New York estuaries (Meetinghouse Creek and Northport Bay). Further, changes in the abundance and toxicity of D. acuminata were assessed during a series of nutrient amendment experiments performed over a t

SUBMITTER: Hattenrath-Lehmann TK 

PROVIDER: S-EPMC4403995 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature