scholarly journals No. 4: SOME PHYSICAL AND CHEMICAL FACTORS INFLUENCING THE DISTRIBUTION OF MARINE FLORA AND FAUNA IN THE STRAIT OF GEORGIA AND ADJACENT WATERS

1922 ◽  
Vol 1 (1) ◽  
pp. 39-72 ◽  
Author(s):  
A. T. CAMERON ◽  
IRENE MOUNCE
Keyword(s):  
Strait Of Georgia ◽  
Factors Influencing ◽  
Chemical Factors ◽  
Marine Flora ◽  
Physical And Chemical

not available

The Qualitative and Quantitative Distribution of Plankton in the Strait of Georgia in Relation to Certain Oceanographic Factors

1957 ◽  
Vol 14 (4) ◽  
pp. 521-552 ◽  
Author(s):  
Joseph Eugène Henri Légaré
Keyword(s):  
Salinity Gradient ◽  
General Distribution ◽  
Fraser River ◽  
Strait Of Georgia ◽  
Quantitative Distribution ◽  
Qualitative And Quantitative ◽  
Chemical Factors ◽  
Physical And Chemical ◽  
Plankton Communities ◽  
Made In

In order to gain some picture of the seasonal variations in the plankton communities two cruises were made in the Strait of Georgia, one in June 1955, and the other in November 1955; 165 plankton collections were taken, also surface temperatures.The correlation of these data have resulted in a number of conclusions concerning the distribution of plankton in the Strait of Georgia. The chief factor affecting the general distribution of plankton is the salinity gradient. The inflow of fresh water from the Fraser River forms zones of varying properties, and leads to the development of different plankton communities. The extent to which physical and chemical factors may determine the presence or absence of certain organisms from the zones described is discussed.

scholarly journals Physical and Chemical Factors Influencing the Printability of Hydrogel-based Extrusion Bioinks

2020 ◽  
Vol 120 (19) ◽  
pp. 10834-10886 ◽  
Author(s):  
Sang Cheon Lee ◽  
Gregory Gillispie ◽  
Peter Prim ◽  
Sang Jin Lee
Keyword(s):  
Factors Influencing ◽  
Chemical Factors ◽  
Physical And Chemical

scholarly journals Exploring Physical and Chemical Factors Influencing the Properties of Recombinant Prion Protein and the Real-Time Quaking-Induced Conversion (RT-QuIC) Assay

PLoS ONE ◽  
2014 ◽  
Vol 9 (1) ◽  
pp. e84812 ◽  
Author(s):  
Keding Cheng ◽  
Angela Sloan ◽  
Kristen M. Avery ◽  
Michael Coulthart ◽  
Michael Carpenter ◽  
...  
Keyword(s):  
Real Time ◽  
Prion Protein ◽  
The Real ◽  
Factors Influencing ◽  
Chemical Factors ◽  
Recombinant Prion Protein ◽  
Physical And Chemical

scholarly journals The spatial legacy of Australian mercury contamination in the sediment of the Molonglo River

Elem Sci Anth ◽  
2020 ◽  
Vol 8 ◽  
Author(s):  
Dylan Stinton ◽  
Larissa Schneider ◽  
Sara Beavis ◽  
Janelle Stevenson ◽  
William A. Maher ◽  
...  
Keyword(s):  
New South ◽  
Sediment Cores ◽  
New South Wales ◽  
Surficial Sediment ◽  
Mercury Contamination ◽  
Mine Site ◽  
Factors Influencing ◽  
South Wales ◽  
Chemical Factors ◽  
Physical And Chemical

Mercury (Hg) contamination is an environmental concern as a by-product of legacy mining in Australia. Here we investigate the spatial and temporal distribution of Hg in the Molonglo River system in New South Wales, Australia, and assess the physical and chemical factors influencing that distribution. Mercury concentrations in sediment cores were measured in conjunction with 210Pb and 137Cs dating to establish historical contamination. This was done at the source mine site of Captains Flat, New South Wales, and the system’s sink in Lake Burley Griffin, Australian Capital Territory. Additionally, surficial sediment Hg concentrations along the Molonglo River were analyzed to determine the spatial distribution of Hg. Analytical results showed the primary physical and chemical factors influencing Hg dispersion to be distance, total organic matter, and the presence of iron oxides and oxyhydroxides. The highest Hg concentrations were near the mine site at Captains Flat and decreased significantly with distance. Sediment core analyses in both Captains Flat and the lake showed reductions in Hg concentrations toward surficial sediment layers. It is suggested government-funded rehabilitation programs are playing a part in reducing the release of metal contamination.

Ovipositional Stimuli of Angoumois Grain Moth (Lepidoptera: Gelechiidae), a Primary Pest of Stored Grains

1999 ◽  
Vol 34 (4) ◽  
pp. 445-451 ◽  
Author(s):  
Paul A. Weston ◽  
Patti L. Rattlingourd
Keyword(s):  
Field Experiments ◽  
Factors Associated ◽  
Angoumois Grain Moth ◽  
Factors Influencing ◽  
Stored Grains ◽  
Physical Stimuli ◽  
Chemical Factors ◽  
Chemical Stimuli ◽  
Ovipositional Response ◽  
Physical And Chemical

Ovipositional preferences of Sitotroga cerealella (Olivier) were measured in the laboratory to characterize the stimuli eliciting oviposition in this widespread pest of stored grains. Substrates used for oviposition included grains presenting both physical and chemical stimuli as well as surrogates presenting only physical stimuli. Chemical factors associated with grains stimulated oviposition, but physical stimuli, primarily the presence of crevices, were of much greater importance. Moths reared for approximately 15 generations in the laboratory were less sensitive to grain factors than were moths more recently collected from the field. Experiments with surrogrates presenting a precisely defined range of crevice sizes confirmed that ovipositional response increased as crevice size narrowed. The results suggest that factors influencing habitat selection are probably very important in this insect because of indiscriminate oviposition on substrates that present appropriate physical stimuli but are entirely unsuitable for larval consumption.

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