Experimental work was performed on drill cuttings sampled from off-shore drilling operations. The cuttings contained remnants of two different types of drilling muds: a water-ilmenite based mud and an olefin-barite based mud. In a pilot experiment, a

Benthic communities were studied at 15 stations along two transects at between 144 and 682 m depth in the Norwegian Trench. Communities of the deep accumulation bottoms generally exceeding 400 m depth, and 65 nautic miles apart, had a high similarity

The vertical flux of organic matter and infauna production, biomass and abundance at six stations along a gradient away from a salmon farm, located in a western Norwegian fjord at a depth of 230 m and which produced 2910 tonnes of fish in 19 months, was