Now showing items 1-6 of 6
SELECTED TRACE METALS IN THE UPPER ST. JOHNS RIVER AND THEIR LAND USE RELATIONSHIPS
Iron, copper and zinc were monitored in the water, sediments, and 4 species of fish of the upper St. Johns River, Florida. Surface water concentrations of total iron commonly exceeded 300 ug/l, the standard established by ...
COMPARISON OF BENTHIC OXYGEN DEMAND MEASUREMENT TECHNIQUES
Several common methods to measure benthic oxygen demand were compared using measured and literature data. An in situ respirometer technique, a laboratory core-uptake technique and a laboratory flow-through system technique ...
INFRARED ABSORPTION STUDY OF HUMIC SUBSTANCES FROM LAKE APOPKA SEDIMENT, PLANKTON AND THE SURROUNDING DRAINAGE BASIN
Infrared absorption spectra were run on humic substances from Lake Apopka sediment samples and compared with spectra from citrus and muck farm humic substances from sediment in the surrounding drainage basin, and also with ...
A redescription of Echinaster Modestus Perrier, 1881 (Asteroidea: Spinulosida) from the eastern Gulf of Mexico and the West Indies
The seastar Echinaster modestus Perrier, 1881, is redescribed and a lectotype is designated. Echinaster spp. from the west coast of Florida used in recent experimental studies are not E. modestus.
PLANKTONIC FORAMINIFERA COLLECTED BY THE R/V MELVILLE (1972) IN THE SOUTHWEST ATLANTIC
The planktonic foraminiferal fauna was studied from 186 samples collected by the R/V Melville in the Southwest Atlantic Ocean during 1972. The samples were collected in the surface layer (horizontal tows) and throughout ...
Genetic recombination in Nocardia asteroides
Gene recombination between strains of N. asteroides of diverse origins has been demonstrated. In particular pairwise combinations, recombinants made up 0.01% of the population. All nine selectable recombinant classes were ...