Calcasieu River

Ramelow, G.J., C.L. Webre, C.S. Mueller, J.N. Beck, J.C.Young, and M.P. Langley. 1989. Variations of heavy metals and arsenic in fish and other organisms from the Calcasieu River and Lake, Louisiana. Arch. Environ. Contam. Toxicol. 18 804-818. 

Murray HE, Beck JN. 1990. Concentrations of selected chlorinated pesticides in shrimp collected from the Calcasieu River/Lake complex, Louisiana. Bull Environ Contain Toxicol 44 798-804. 

Heptachlor and heptachlor epoxide have been detected in several aquatic species. Heptachlor was measured in shrimp collected from the Calcasieu River/Lake Complex in Louisiana at concentrations ranging from 10 to 750 ppb (Murray and Beck 1990). A survey of organic compound concentrations in whole body tissues of the Asiatic clam Corbicula manilensis was conducted on the Apalachicola River in northwest Florida in 1979-1980 as part of the Apalachicola River Quality Assessment. Heptachlor epoxide was detected in the whole body tissue of the clam at concentrations ranging from <0.1 to 0.6 ppb, with a median concentration of 0.3 ppb (Elder and Mattraw 1984). 

Determination Method Suwannee River above Fargo, GA Big Soda Lake near Fallon, NV Calcasieu River near Kinder, LA Mississippi River near St. Francisville, LA... 

Variation among Sampling Sites. Dissolved humic substance samples from seven end-member environments were isolated for study. Autochthonous inputs to DOM were expected to dominate in Big Soda Lake and in Island Lake, which is a groundwater-sustained eutrophic lake in the sandhills of western Nebraska. Allochthonous inputs to DOM from a swamp environment predominate in the Suwannee River. They also dominate in the Calcasieu River in western Louisiana, but the proportion of swampland is much lower there. The Temi River is a tropical blackwater tributary of the Orinoco River in Venezuela, where allochthonous inputs dominate. The entire Sagavanirktok River basin is located north of the tree line on the North Slope of Alaska a mixture of allochthonous and autochthonous inputs was expected for the various rivers and lakes in this basin. Lastly, Hidden Lake Creek, which is the outlet of Hidden Lake on the Kenai Peninsula of Alaska, was sampled to determine if nutrient inputs from decaying salmon were contributing to primary production and autochthonous inputs to DOM. 

The Sagavanirktok River is intermediate in aromatic carbon content. This river drains the bogs on the Arctic tundra (allochthonous inputs) and several lakes (autochthonous inputs). Samples from the Suwannee and Calcasieu rivers are very similar in peak-height ratios with the exception of peak 2 1 ratio, which is much lower for the Calcasieu River sample. The data in Table II indicate that the Calcasieu River fulvic acid has a greater ring content... 

Fulvic acid from Calcasieu River near Kinder, Louisiana 0.580 0.589 0.155 0.162 0.96 30.9... 

The Suwannee River was sampled at its origin at the outlet of the Okefenokee Swamp. This fulvic acid, therefore, is likely to be less degraded than a sample from the Calcasieu River that was taken near its mouth on the estuary during a warm, low-flow period in early summer. Metal-ion solubility controls and sorption on mineral surfaces in upland soils also might fractionate the fulvic acid in the Calcasieu River. In contrast, the Suwannee River mineral-soil solubility controls are less significant. 

Ramelow GJ, Maples RS, Thompson RL, et al. 1987. Periphyton as monitors for heavy metal pollution in the Calcasieu River estuary. Environ Poll 43 247-263. 

Fluka-Tridom humic acid Calcasieu River humic extract, Chiou et al. 1987)... 

Aldrich humic acidNa salt, Fluka-Tridon humic acid, Calcasieu River humic extract, Suwannee River water sample, Sopchoppy River water sample, Chiou et al. 1987)... 

The edible parts of several species of fish and other marine organisms inhabiting the Calcasieu River/Lake, in Southwest Louisiana, were determined for As, Cd, Cr, Cu, Pb, Hg, Ag, and Zn [20], Concentrations of all elements measured in both intra and interspecies showed no significant variation with sample location. Differences in metal concentrations were related to organism mobility and not to site-specific variations in metal loadings. Different species of finfish contained only trace amounts (in p,g kg-1) of Ag (<0.01-0.3), As (<0.1-0.3), Cd (0.02-0.08), and Pb (<0.2-0.5). 

FIGURE 12.9 The effect of redox potential on the distribution of copper among selected chemical forms in Calcasieu River sediment suspensions at pH 8.0 (total copper = 21.4 mg kg ). 

Barataria Bay Mobile Bay Mississippi River Calcasieu River... 

---