Harmful algal blooms (HABs) are becoming widely distributed and more frequent, threatening socioecosystems human health. We determined species composition, abundance spatial distribution of dinoflagellate cysts in the upper sediment Oualidia Lagoon located on Atlantic coast Morocco. Sediment samples were collected 2017 at 51 stations, environmental parameters measured together with microphytopl...

We used a multiple-proxy palaeoeco logical method to reconstruct a 100 yr time series showing coastal eutrophic processes and phytoplankton re sponses. Total organic carbon, total nitrogen, diatom frustules, dinoflagellate cysts, brassicasterol and dinosterol were extracted from chronologic sediment cores in Sishili Bay, a polluted area in China. The cores showed that eutrophication occurred du...

The presence of abundant age-diagnostic dinoflagellate cysts in Ocean Drilling Program (ODP) Hole 913B (Leg 151), Deep Sea Drilling Project Hole 338 (Leg 38) and ODP Hole 643A (Leg 104) has enabled the development of a new biostratigraphy for the Eocene^Oligocene interval in the Norwegian^Greenland Sea. This development is important because the calcareous microfossils usually used for biostrati...

The Middle Jurassic in the north Western Desert, Egypt, was a time of complex tectonics and increased environmental perturbations attributed to predominant sedimentation organic carbon-rich fine siliciclastic carbonate deposits Khatatba Formation. Although some studies have addressed hydrocarbon potential source rock characteristics Formation, regional-scale investigation prevalent paleoenviron...

The Poigny borehole near Provins (Seine-et-Marne) provides the most complete single pristine section through Upper Cretaceous Chalk of Paris Basin. A well preserved and diverse palynoflora including 236 species subspecies organic-walled dinoflagellate cysts (dinocysts) is documented from borehole, together with a high-resolution carbon-isotope curve (δ 13 C carb ) for Coniacian–Campanian interv...

Pfiesteria pisiccida is a microscopic, unicellular organism that is classified as both a mixotrophic and heterotrophic dinoflagellate, which has been associated with both fish deaths and a cause of human illness (Burkholder et al., 1992; Glasgow et al., 1995; Burkholder and Glasgow, 1997). This species possesses a complex life cycle that includes motile forms (e.g. zoospores, gametes, amoebae) ...