Jones, Galen E. (Scripps Institution of Oceanography, University of California, La Jolla). Effect of chelating agents on the growth of Escherichia coli in seawater. J. Bacteriol. 87:483-499. 1964.-Escherichia coli did not grow at 37 C, or grew only after a prolonged lag phase in filter-sterilized basal seawater medium (synthetic or natural seawater supplemented with glucose, NH(4)Cl, and K(2)HP...

We identified five Na+/K+-ATPase alpha-isoforms in rainbow trout and characterized their expression pattern in gills following seawater transfer. Three of these isoforms were closely related to other vertebrate alpha1 isoforms (designated alpha1a, alpha1b and alpha1c), one isoform was closely related to alpha2 isoforms (designated alpha2) and the fifth was closely related to alpha3 isoforms (de...

Increased gastrointestinal blood flow is essential for euryhaline fishes to maintain osmotic homeostasis during the initial phase of a transition from freshwater to seawater. However, the cardiorespiratory responses and hemodynamic changes required for a successful long-term transition to seawater remain largely unknown. In the present study, we simultaneously measured oxygen consumption rate (...

GOLDSTEIN, LEON, AND KOY P. FORSTER. Osmoregulation and urea metabolism in the little skate Raja erinacea. Am. J. Physiol. 220(3) : 742-746. 197 1 .-Little skates, Raja erinacea, were transferred gradually (4 days) from full to approximately half-strength seawater. Steady-state conditions (with respect to solute and water balance) were established by the end of the dilution program. The skates ...

Ocean acidification (OA) results in reduced seawater pH and aragonite saturation state (Ωarag), but also reduced seawater buffer capacity. As buffer capacity decreases, diel variation in seawater chemistry increases. However, a variety of ecosystem feedbacks can modulate changes in both average seawater chemistry and diel seawater chemistry variation. Here we model these effects for a coastal, ...

GOLDSTEIN, LEON, AND KOY P. FORSTER. Osmoregulation and urea metabolism in the little skate Raja erinacea. Am. J. Physiol. 220(3) : 742-746. 197 1 .-Little skates, Raja erinacea, were transferred gradually (4 days) from full to approximately half-strength seawater. Steady-state conditions (with respect to solute and water balance) were established by the end of the dilution program. The skates ...

Ž . The purpose of this study was to find the minimum inhibitory concentrations MIC for the following antibacterial agents: chloramphenicol, florfenicol, flumequine and the combination Ž . trimethoprimrsulfadiazine to bacteria associated with scallop Pecten maximus larvae. To evaluate possible effects of components in seawater to the antimicrobial activity of these agents, MIC values were estab...

Summer storms along the Antarctic Peninsula can cause microhabitats of the terrestrial midge Belgica antarctica to become periodically inundated with seawater from tidal spray. As microhabitats dry, larvae may be exposed to increasing concentrations of seawater. Alternatively, as a result of melting snow or following rain, larvae may be immersed in freshwater for extended periods. The present s...

results it was found that in all studied wavelengths with or without methylene blue (mb), the level of all studied enzymes decreased remarkably when compared to dark controls. it was observed that the synthesis level of sod, glutathione peroxidase gp, and glucose 6 phosphate dehydrogenase g-6-pd in e. coli decreased significantly in red light with respect to white, blue, and green light in seaw...

Marine snow aggregates are heavily colonized by heterotrophic microorganisms that express high levels of hydrolytic activities, making aggregates hotspots for carbon remineralization in the ocean. To assess how aggregate formation influences the ability of seawater microbial communities to access organic carbon, we compared hydrolysis rates of six polysaccharides in coastal seawater after aggre...