A series of fish bioassays using cultures of the toxic dinoflagellate, Pfiesteria piscicida and a cryptoperidiniopsoid dinoflagellate indicated various degrees of toxicity for Pfiesteria piscicida and no toxicity by the cryptoperidiniopsoid. P. piscicida maintained toxicity in the presence of live fish, and this toxicity was perpetuated following a series of inoculations to other culture vessel...

The Middle Jurassic was a time of marginal to shallow shelf settings dominated by organic matter-rich deposition in northern Egypt, southern Tethys. Paleoenvironmental and sequence stratigraphic reconstructions are paramount significance for better understanding basin history related reservoirs source rock units. For this purpose, detailed palynomorph palynofacies analysis the Khatatba Formatio...

The concept of a geologically instantaneous earliest Zanclean reflooding the Mediterranean Basin after Messinian drawdown has dominated geological thinking and is ingrained in scientific literature. base Trubi Formation southern Italy, formally defined as Global Boundary Stratotype Section Point (GSSP) at 5.33 Ma, traditionally been considered marking marine Mediterranean. However, several stud...

statistical studies on palynology contents of late cretaceous to paleocene age gurpi formation in a surface section in zagros basin,sw iran indicate changes in abundance, species diversity, ratio of spiniferites to cyclonephelium (s/c), palynological marine index(pmi) values and organic facies. these palynological variations clearly reflect fluctuations in relative sea-level and depositionalenv...

We examined the dynamics of dinoflagellate cyst and phytoplankton assemblages in eutrophic coastal waters Korea, adjacent to fish shellfish farms. Water temperature showed seasonality, whereas salinity pH remained relatively consistent. Dissolved inorganic nutrient levels were higher September at inner stations, where aquaculture farms are located than those May outer stations. Canonical corres...