Reconsideration of stomatogenesis in Uronema marinum Dujardin, 1841 during asexual division (Protozoa: Ciliophora: Scuticociliatida);

Grazing stress of two marine ciliates, Euplotes vannus Müller and Uronema marinum Dujardin, on the growth of marine bacterium (Vibrio sp.

The biodiversity analysis for free living marine nematodes was made based on two stations sampled in 1997, together with the data collected from 7 stations in 1986, one station from Jiaozhou Bay in 1995 and the other from Meizhou Bay in 1988.

The permanent meiofauna were dominated by free-living marine nematodes and harpacticoid copepods,whose mean relative abundances being 41% and 28% respectively, and their abundances and relative dominances appeared to be related to their feeding habits and the degree of shelter.

Two hundred and twenty-three species (or taxa) of free-living marine nematodes belong- ing to 145 genera,32 families and 4 orders are identified.

The benthic environment, the abundance, the biomass and production, the community structure and biodiversity of meiofauna and systematics of free-living marine nematodes were quantitatively studied at a grid of twenty two stations during the cruise of investigation for over winter ground of anchovy (Engraulis japonicus) in the Southern Yellow Sea, China in January 2003.