Water chemical analyses and/or algal assay? — Sewage effluent and polluted lake water studies

1978 ◽  
Vol 21 (1) ◽  
pp. 352-363 ◽  
Author(s):  
Curt Forsberg ◽  
Sven-Olof Ryding ◽  
Anders Claesson ◽  
Åke Forsberg
Author(s):  
Mathiyazhagan Narayanan ◽  
Gajendiran Kandasamy ◽  
Sabariswaran Kandasamy ◽  
Devarajan Natarajan ◽  
Kesavan Devarayan ◽  
...  

1984 ◽  
Vol 23 (2) ◽  
pp. 197-208 ◽  
Author(s):  
I. G. De Jong ◽  
D. R. Wiles
Keyword(s):  

2013 ◽  
Vol 71 ◽  
pp. 57-61 ◽  
Author(s):  
Yan-Rong He ◽  
Xiang Xiao ◽  
Wen-Wei Li ◽  
Pei-Jie Cai ◽  
Shi-Jie Yuan ◽  
...  

Author(s):  
W. Romme ◽  
D. Knight

There is evidence to suggest that the primary productivity of Yellowstone Lake may have decreased during the last 1500 years, with an accelerated decline in the last 100 years. Shero and Parker (1977) analyzed diatom frustules preserved in lake sediments and described a gradual decrease in both numbers and volume of frustules over the past 1500 years, although species composition has remained relatively constant. Varley (1974, and personal communication) compared chemical analyses of lake water made in 1884 with recent analyses and found 1ower concentrations of several elements in the recent samples. He also notes that early visitors at the Lake Hotel often complained about the offensive smell of rotting "sea weed" piled 3-4 feet deep on the beach, whereas only scattered macrophyte detritus can be found on the lake shore today.


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