Competition for phosphorus between two dinoflagellates: A toxic Alexandrium minutum and a non-toxic Heterocapsa triquetra

Comparative studies on mycosporine-like amino acids, paralytic shellfish toxins and pigment profiles of the toxic dinoflagellates Alexandrium tamarense, A. catenella and A. minutum

Surface bloom-forming species, predominantly of the Dinophyceae, have the capacity to accumulate high amounts of mycosporine-like amino acids (MAAs). The 3 dinoflagellate species (Gonyaulacales, Dinophyceae), Alexandrium tamarense (Lebour) Balech, A. catenella (Weedon et Kofoid) Balech, and A. minutum Halim, are bloom-forming toxic isolates. They are usually found forming blooms near the surfac...

Dynamical Modeling of Toxic and Non-toxic Phytoplankton Competition

The study of the competitive outcome associated with two consumers of the same resource, algae, is investigated under asymmetric intraguild interactions and carrying capacities that are a function of resource (algae) availability at any time. The mathematical model is motivated by our understanding of the interactions of genus Protoperidinium (toxin producing) and Heterocapsa (non-toxic produci...

Flow cytometric measurements of cellular responses in a toxic dinoflagellate, Alexandrium minutum upon exposure to thermal, chemical and mechanical stresses

Short-Term Behavioural Responses of the Great Scallop Pecten maximus Exposed to the Toxic Alga Alexandrium minutum Measured by Accelerometry and Passive Acoustics

Harmful algal blooms produced by toxic dinoflagellates have increased worldwide, impacting human health, the environment, and fisheries. Due to their potential sensitivity (e.g., environmental changes), bivalves through their valve movements can be monitored to detect harmful algal blooms. Methods that measure valve activity require bivalve-attached sensors and usually connected cables to data ...

A Quantitative investigation on some toxic and non-toxic metals in popular medicinal herbs in Iranian market

This study was performed to explore the presence of heavy metals in some popular herbal medicines of the Iranian market. Primarily, this study was planned to do the task by the USP method. In the second step, those plants which contained more than 10 ppm of total heavy metals were analyzed by atomic absorption method. In this study, 43 popular herbal medicines were investigated according to the...