Perch mercury

Cope WG, Wiener JG, Rada RG. 1990. Mercury accumulation in yellow perch in Wisconsin seepage lakes relation to lake characteristics. Environ Toxicol Chem 9 931-940. 

Haines TA, Komov VT, Matey VE, Jagoe CH. 1995. Perch mercury content is related to acidity and color of 26 Russian lakes. Water Air Soil Pollut 85 823-828. 

Metsaelae T, Rask M. 1989. Mercury concentrations of perch, Perea fluviatilis L., in small Finnish headwater lakes with different pH and water colour. Aqua Fennica 19 41 6. 

Simonin HA, Gloss SP, DiiscoU CT, Schofield CL, Kretser WA, Karcher RW, Symula J. 1994. Mercury in yellow perch fromAdirondack drainage lakes (New York, U.S.). In Watras CJ, Huckabee JW, editors. Mercury pollution integration and synthesis. Boca Raton (FL) Lewis Pubhshers, p. 457-469. 

Sorensen JA, KaUemeyn LW, Sydor M. 2005. Relationship between mercury accumulation in young-of-the-year yellow perch and water-level fluctuations. Environ Sci Technol 39 9237-9243. 

Suns K, Hitchin G. 1990. Interrelationships between mercury levels in yearling yellow perch, fish condition and water quality. Water Air Soil PoUut 50 255-265. 

Parks, J.W., C. Curry, D. Romani, and D.D. Russell. 1991. Young northern pike, yellow perch and crayfish as bioindicators in a mercury contaminated watercourse. Environ. Monitor. Assess. 16 39-73. 

Driscoll et al. (1994) have studied the mercury species relationships among water, sediments, and fish (yellow perch) in a series of Adirondack lakes in New York state, USA. In most lakes, approximately 10% of the total mercury loading was in the form of C2HsHg+. Mercury concentrations increased as pH fell, but the best correlation was found between [dissolved Al] and [dissolved Hg] suggesting that the same factors are responsible for mobilizing both these metals. Methylmercury concentrations correlated strongly with the dissolved organic carbon content in the water. Fish muscle tissue was analyzed for mercury and showed an increase with age. However, the study was unable to resolve the question of whether the principal source of mercury to these lakes was atmospheric deposition or dissolution from bedrock due to acid rains. 

Following the preparation of 4.79, a number of other cyclic mercury crown compounds have been synthesised, which do exhibit halide complexation behaviour. Compound 4.80, forms a 1 1 polymer with bromide in the solid state in which the Hr anions perch above the Hg3 plane. The Hg—Br distances of 3.07-3.39A are considerably longer than normal Hg—Br covalent bonds (about 2.54A).61 The compound also binds SCN- with similarly long bonds as shown in Figure 4.34.60 The analogous chloride complex has a 3 2 stoichiometry suggesting a triple-decker sandwich of type [4.80 Cl 4.80 Cl 4.80]2. ... 

Ames, M., Gullu, G. and Olmez, I. (1998) Atmospheric mercury in the vapor phase, and in fine and coarse particulate matter at Perch River, New York. Atmos. Environ., 32,865-872. 

Szefer, P., Domagala-Wieloszewska, M., Warzocha, J., Garbacik-Wesolowska, A., Ciesielski, T. Distribution and relationships of mercury, lead, cadmium, copper and zinc in perch Perea fluviatilis) from the Pomeranian Bay and Szczecin Lagoon, southern Baltic. Food Chem. 81, 73-83 (2003)... 

Golimowski J, Gustavsson I. 1983. Determination of mercury in freeze-dried muscle samples of pike, cod, and perch using an ASV-technique. Sci Total Environ 31 89-98. 

Mercury s symbol has three metaphysical components the cross of earth or matter, the circle of spirit, and, perched on top, the crescent of personality looking like a tiny satellite dish, ready to receive information. 

Haeeis RC and Snodgeass WJ (1993) Bioenergetic simulations of mercury uptake and retention in walleye (Stizostedion vitreum) and yellow perch (Pereaflavescens). Water Poll Res J Can 28 217-236. 

Carter J, Dtysdale C, Burgess N, Beauchamp S, Bruin G, D Entremont, A, eds. Mercury concentrations in yellow perch (Perea flavescens) from 24 lakes at Kejimku-jikNational Park, July, 2001, Parks Canada- Technical Reports in Ecosystem Science, Report Number 031, 2001. 

In Swedish fresh-water fish (perch, pike, pike-perch, eelpout, whitefish) an average of 92% of the total mercury content, was... 

The concentration of mercury in most foods ranges from ten thousandth to hundredths of mg/kg (Table 6.14). High concentrations of mercury (tenths to units of mg/kg) are found in some edible mushrooms, fish, shellfish and crustaceans. For example, mercury concentrations in fish in the Czech Repubhc were as follows carp 0.01 mg/kg, roach 0.08 0.23 mg/kg, tench 0.14-0.64 mg/kg, perch 0.14-2.43 mg/kg, pike 0.16 2.87 mg/kg, zander (pike-perch) 0.34-1.90 mg/kg, eel 0.13-2.40 mg/kg. 

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