Sentences with phrase «by dinoflagellates»

The leaves were also meant to simulate Puerto Rico's bioluminescent bays, a natural phenomenon caused by dinoflagellates, photosynthetic underwater organisms that emit light when agitated.

Although this may be bad news for the Baltic Sea and other areas plagued by this dinoflagellate, Kremp also noted that the short duration of most lab studies limits what we can know about how toxic algae may evolve over the next century.

Two are caused by dinoflagellate species, Prorocentrum minimum and Kalrodinium veneficum, and the third by cyanobacteria, sometimes called blue - green algae.

Florida red tide is a harmful algal bloom produced by the dinoflagellate Karenia brevis that causes respiratory impairment in humans and marine life, and is responsible for shellfish poisoning.

Not exact matches

Dinoflagellates eat these blooms and are then set upon by swarms of krill, which, in turn, are eaten by many larger animals, including baleen whales.

Dinophysis shellfish toxins (okadaic acid and derivatives) cause diarrhetic shellfish poisoning and are produced by marine dinoflagellates in the genus Dinophysis.

Creatures grazing on the dinoflagellates «don't want to be lit up and munched on» by other predators, she says.

Although many dinoflagellates can survive through photosynthesis alone, some species are able to grow twice as fast by preying on other algae — and it is this feeding mechanism that is now thought to be aided by the production of toxins.

He found that warm - water phytoplankton, known as dinoflagellates, were replaced during that time by species from the colder waters of the North Atlantic.

The geographic area impacted by these blooms of the dinoflagellate Alexandrium expanded dramatically in 1972 as a result of Hurricane Carrie.

Here, a dinoflagellate population (Noctiluca sp.) turns the ocean a luminous blue color as the disturbance by the wind triggers a light - generating chemical reaction.

Whereas the acceleration of cnidarian nematocysts is driven by high internal pressure, the dinoflagellates lack the necessary metabolic pathways.

The algae that form red tide in the Gulf of Mexico are dinoflagellates called Karenia brevis, or just Karenia by scientists.

Secondary plastids are surrounded by three (in euglenophytes and some dinoflagellates) or four membranes (in haptophytes, heterokonts, cryptophytes, and chlorarachniophytes).

Spatiotemporal changes in the genetic diversity of harmful algal blooms caused by the toxic dinoflagellate

This is caused by Bioluminescent Dinoflagellates.

When this dinoflagellate increases to high numbers, the condition is sometimes (and somewhat erroneously) referred to by kayakers as a «red tide».

It is caused by eating shellfish contaminated with the dinoflagellate Alexandrium catenella that contains a toxin.

We relate this sea ice minimum to the strong inflow of warm Atlantic Water as indicated by the contemporaneous prominent maxima in open - water phytoplankton biomarker concentrations (i.e., brassicasterol and HBI - III), total numbers of dinoflagellate cysts and — especially — the dinoflagellate species O. centrocarpum (Fig. 7d) as well as a prominent maximum in Atlantic - Water species of benthic foraminifers44.

This interpretation is further supported by the minimum of the total number of dinoflagellate cysts and peak concentrations of the dinoflagellate species Impagidinium pallidum (Fig. 7d), indicative of cold polar conditions and an extensive seasonal sea ice cover42.

The proliferation of algae and dinoflagellates during these warming events could increase the number of people affected by toxins (such as ciguatera) due to the consumption of marine food sources (Union des Comores, 2002; see also Chapter 16, Section 16.4.5).

She has examined the uptake of symbiotic dinoflagellates and endolithic algae by newly settled corals and the role of sediment and CCAs in this process.