The longevity of algal inhibition after chlorination of estuarine water

1984 ◽  
Vol 18 (5) ◽  
pp. 383-385 ◽  
Author(s):  
James G. Sanders
Keyword(s):  
Estuarine Water ◽  
Algal Inhibition

Direct Detection of Enteropathogenic Bacteria in Estuarine Water Using Nucleic Acid Probes

1991 ◽  
Vol 24 (2) ◽  
pp. 261-266 ◽  
Author(s):  
Ivor T. Knight ◽  
Jocelyne DiRuggiero ◽  
Rita R. Colwell
Keyword(s):  
Water Samples ◽  
Pathogenic Bacteria ◽  
Direct Detection ◽  
Specific Gene ◽  
Estuarine Water ◽  
Indicator Organisms ◽  
Salmonella Spp ◽  
Dna And Rna ◽  
Enteropathogenic Bacteria ◽  
Highly Sensitive Detection

Direct detection and enumeration of pathogenic bacteria, rather than indicator organisms, in aquatic environments is desirable but hindered by the difficulties of culturing and identifying specific pathogens from these environments. We have developed a method for concentrating bacteria from water samples and extracting their DNA and RNA for use as targets for pathogen-specific gene probes. The method has been used to detect and enumerate Salmonella spp. in estuarine water samples. The probe binds Salmonella DNA quantitatively, making it possible to estimate relative amounts of target in each sample. Salmonella spp. were detected in samples which yielded no Salmonella spp. using culturing. Since the probe method does not require culturing the target organism, both culturable and non-culturable forms are detected. We have also used polymerase chain reaction to amplify a region of the enterotoxin gene in enterotoxigenic Escherichiacoli and Vibriocholerae (ltx and ctx, respectively). The amplified products are then identified with ctx and ltx probes, making specific, highly sensitive detection possible.

Corrosion of refrigerator condensers cooled with estuarine water

1992 ◽  
Vol 13 (2) ◽  
pp. 101-105
Author(s):  
I.W. Eames ◽  
R. Edyvean ◽  
R. Brook
Keyword(s):  
Estuarine Water

Cumulative impact of marinas on estuarine water quality

1996 ◽  
Vol 20 (3) ◽  
pp. 385-396 ◽  
Author(s):  
T. L. McAllister ◽  
M. F. Overton ◽  
E. D. Brill
Keyword(s):  
Water Quality ◽  
Estuarine Water ◽  
Cumulative Impact ◽  
Estuarine Water Quality

Occurrence of thraustochytrids: the fungoid protists vis-a-vis marine macroalgae (seaweeds) along the coast of Goa, India

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Varada S. Damare ◽  
Estha T. Fernandes ◽  
Anjita A. Naik ◽  
Svetlana P. Cardozo ◽  
Vilda Borges ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Temporal Variation ◽  
Green Alga ◽  
Marine Macroalgae ◽  
Interactive Effects ◽  
Estuarine Water ◽  
Ulva Compressa ◽  
Pine Pollen ◽  
Dry Seasons ◽  
Seawater Samples

Abstract Thraustochytrids are fungoid protists ubiquitous in the marine environment and found to be associated with decaying macroalgae. Not much is known about their association with living macroalgae. Hence in the present study, different macroalgal samples were collected from various beaches of Goa to examine the presence of thraustochytrids during a four-year-long study. Brown, red and green algae were found to be substrata of thraustochytrids. Thraustochytrids were isolated on pine pollen baiting from 17 to 58% of the specimens. Thraustochytrids isolated from various macroalgae belonged to the genera Oblongichytrium, Schizochytrium, Ulkenia, and Thraustochytrium. Labyrinthula sp. was also found once on the green alga Bryopsis hypnoides. These were generally found during dry seasons rather than in monsoons. The seasonal occurrence of thraustochytrids was found to be associated with temporal variation in macroalgal diversity. The statistical analysis supported individual or interactive effects of both factors viz, seasons and macroalgal diversity, on the occurrence of thraustochytrids. Thraustochytrids were also isolated from seawater adjoining macroalgae and from estuarine water at all times of the year. Oblongichytrium sp. was isolated from the green alga Ulva compressa and Anjuna seawater samples at the same time, thus indicating that thraustochytrids from seawater could inhabit the macroalgae.

Large-Scale Estuarine Water Quality Matrix Model

1976 ◽  
Vol 102 (1) ◽  
pp. 191-209
Author(s):  
Bhaskara R. Penumalli ◽  
E. Gus Fruh ◽  
Robert H. Flake
Keyword(s):  
Water Quality ◽  
Matrix Model ◽  
Large Scale ◽  
Estuarine Water ◽  
Estuarine Water Quality
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