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Full-Text Articles in Life Sciences
Spectral Differences And Temporal Stability Of Phycoerythrin Fluorescence In Estuarine And Coastal Waters Due To The Domination Of Labile Cryptophytes And Stabile Cyanobacteria, Rj Exton, Wm Houghton, W Esaias, Lw Haas, D Hayward
Spectral Differences And Temporal Stability Of Phycoerythrin Fluorescence In Estuarine And Coastal Waters Due To The Domination Of Labile Cryptophytes And Stabile Cyanobacteria, Rj Exton, Wm Houghton, W Esaias, Lw Haas, D Hayward
VIMS Articles
Laser fluorosensing and epifluorescence microscopy were used jointly to identify the origin of different spectral peaks of phycoerythrin in estuarine and coastal samples. The fluorescence of the samples was also examined as a function of the time elapsed after a water circulation system was turned on. Coastal samples were dominated by cyanobacteria and exhibited a constant phycoerythrin fluorescence with time. The phycoerythrin fluorescence of the Chesapeake Bay estuarine samples first increased strongly, reached a maximum, and then decreased to below the original level; these samples were dominated by cryptophytes which epifluorescence techniques revealed were being destroyed by the circulation system. …
Seasonal-Variation In Survival Of Escherichia-Coli Exposed Insitu In Membrane-Diffusion Chambers Containing Filtered And Nonfiltered Estuarine Water, I. C. Anderson, Mw Rhodes, Hi Kator
Seasonal-Variation In Survival Of Escherichia-Coli Exposed Insitu In Membrane-Diffusion Chambers Containing Filtered And Nonfiltered Estuarine Water, I. C. Anderson, Mw Rhodes, Hi Kator
VIMS Articles
Human fecal Escherichia coli isolates were exposed over a seasonal cycle to estuarine water in diffusion chambers filled with double-filtered (0.45 and 0.2 p.m) and nonfiltered water. Laboratory manipulations of E. coli cultures before estuarine exposure were reduced to minimize sublethal stress, and nonselective or resuscitative enumeration techniques were employed to maximize recovery of stressed cells. E. coli was capable of extended survival during in situ exposure to estuarine water, provided eucaryotes were excluded from diffusion chambers. Survival was directly related to temperature in absence of the eucaryote component of the natural microbiota. Although it was not possible to prevent …
In Situ Development Of Sublethal Stress In Escherichia-Coli - Effects On Enumeration, Mw Rhodes, Iris C. Anderson, H Kator
In Situ Development Of Sublethal Stress In Escherichia-Coli - Effects On Enumeration, Mw Rhodes, Iris C. Anderson, H Kator
VIMS Articles
No abstract provided.
Comparative Ecology Of Nekton Residing In A Tidal Creek And Adjacent Seagrass Meadow: Community Composition And Structure, Mp Weinstein, Ha Brooks
Comparative Ecology Of Nekton Residing In A Tidal Creek And Adjacent Seagrass Meadow: Community Composition And Structure, Mp Weinstein, Ha Brooks
VIMS Articles
No abstract provided.