Some Relations of Land Drainage, Nutrients, Particulate Material, and Fish Catch in Two Eastern Canadian Bays

1972 ◽  
Vol 29 (4) ◽  
pp. 357-362 ◽  
Author(s):  
W. H. Sutcliffe Jr.
Keyword(s):  
Particulate Material ◽  
Important Species ◽  
Carbon And Nitrogen ◽  
Land Drainage ◽  
Suspended Particulate ◽  
Suspended Particulate Material ◽  
Fish Catch ◽  
Commercially Important ◽  
Positive Correlations ◽  
Carbon And Nitrogen Content

A year's record of the carbon content of living and of carbon and nitrogen content of nonliving suspended particulate material from St. Margaret's Bay, Nova Scotia, is presented. From considerations of carbon/nitrogen ratios and nutrient data from other sources, the nitrogen budget is briefly considered. The possible importance of land drainage into the bay leads to some positive correlations between runoff and catch of four commercially important species in the Gulf of St. Lawrence.

scholarly journals Análise Espaço-Temporal da Pluma de Dispersão dos Sedimentos Dragados do Porto de Maceió, Alagoas

2021 ◽  
pp. 2087-2113
Author(s):  
Anderson Marques Araújo do Nascimento ◽  
Paulo Ricardo Petter Medeiros ◽  
Geovânia Ricardo dos Santos ◽  
Geórgenes Hilário Cavalcante Segundo
Keyword(s):  
Gravimetric Method ◽  
Linear Interpolation ◽  
Particulate Material ◽  
Physical Parameters ◽  
Plot Analysis ◽  
Suspended Particulate ◽  
Suspended Particulate Material ◽  
Sedimentary Dynamics ◽  
Box Plot

The understanding of the sedimentary dynamics is important in the characterization of impacts caused by dredging and this knowledge becomes decisive for their discernment. The aim of this article was to analyze the plume of dispersion of the sediments of the Port of Maceió. The analyzes were carried out in three sampling campaigns, before, during and after the port works, in which the collection points in the dredging and discard areas were plotted. The suspended particulate material (SPM) was analyzed using the gravimetric method and in situ sampling of the parameters turbidity, dissolved oxygen and percentage of saturation, salinity and electrical conductivity with a multiparameter probe and water transparency with Secchi disk. The parameters SPM, turbidity and transparency were analyzed by linear interpolation, while the other variables were subjected to analysis on a polynomial calibration curve. The multiparameters worked were submitted to box plot analysis in order to assess the variance between campaigns. The variation of SPM in the sample campaigns showed dynamic spatial and temporal behavior; The interpolation promoted a better visualization of the physical parameters that directly express the plume of dispersion; The supplementary variables showed trend patterns in relation to the sediment charge; Box plot analysis proved to be pertinently useful for evaluating and interpreting the results in an integrated manner, mainly due to the large number of parameters analyzed; The dredging works had a balanced management between the amount of dredged sediments and their spatial disposition at the discard site when compared to the dredging area.

Distribution and geochemical composition of suspended particulate material in the shallow embayment of northern Thermaikos Gulf, Greece

2017 ◽  
Vol 143 ◽  
pp. 295-310 ◽  
Author(s):  
K. Tsompanoglou ◽  
Ch. Anagnostou ◽  
E. Krasakopoulou ◽  
K. Pagou ◽  
A.P. Karageorgis ◽  
...  
Keyword(s):  
Particulate Material ◽  
Geochemical Composition ◽  
Suspended Particulate ◽  
Suspended Particulate Material
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