Silver fish

Silver ion (Ag+) was the most toxic chemical species of silver to fishes. Silver ion was 300 times more toxic than silver chloride to fathead minnows (Pimephales promelas), 15,000 times more... 

Natural pearl essence (Essence d Oriente, Fish Silver) is a pigment suspension derived from fish scales, skin, or bladder. It is the oldest commercial pearl luster pigment, consisting mainly of a mixture of the purines guanine [73-40-5] (75-97%) and hypoxanthine [68-94-0] (25-3%). 

Table 52 contains a comparative overview of Ti02-mica, basic lead carbonate, bismuth oxychloride, and natural fish silver pigments. Some further physical data are summarized in Table 53. 

Marked interpopulation distinctions in characteristics such as fatness have been observed in a number of freshwater fish - silver carp, bighead, bleak, wild goldfish and mongolian grayling (Marti, 1988 Konovalov, 1989 Lapin and Basaanzhov, 1989 Lapina, 1991). 

Natural pearl essence is isolated as a silky lustrous suspension from fish scales. The organic pigment particles in the suspension are platelet-shaped with a very high aspect ratio (0.05 pm x 1-10 pm x 20-50 pm), and consist of 75-97% guanine and 3-25% hypoxanthine (natural fish silver) [5.122, 5.123, 5.128, 5.130]. 

Ti02-mica pigments are used in all color formulations of conventional pigments where brilliance and luster are required in addition to color, i.e., in plastics, coatings, printing, and cosmetics. Table 5.15 contains a comparative overview of Ti02-mica, basic lead carbonate, bismuth oxychloride, and natural fish silver pigments. Some further physical data are summarized in Table 5.16. 

Natural fish silver very low density high price nail lacquers... 

Natural fish silver needles, longish platelets 10-40 40-50 1.6... 

BEARLiN A R and TiKEL D (2003) Conservation genetics of Murray-Darling Basin fish silver perch Bidyanus bidyanus), Murray cod (Maccullochella peelii), and trout cod (M. macquariensis), in Phillips B (ed.). Managing fish translocation and stocking in the Murray-Darling Basin workshop, Canberra, 25-26 September 2002 statement, recommendations and supporting papers. Sydney World Wildlife Fund, 59-83. 

READ P, LANDOS M, ROWLAND s J and MIFSUD c (2007) Diagnosis, treatment and prevention of the diseases of the Australian freshwater fish silver perch (Bidyanus bidyanus). Sydney NSW Department of Primary Industries. 

ROWLAND s j (2009) Review of aquaculture research and development of the Austrahan freshwater fish silver perch, Bidyanus bidyanus, Journal of the World Aquaculture Society, 40(3), 291-324. 

Natural fish silver Very low density High luster N ontoxic Light stable High price Low hiding power Limited availability Nail lacquers... 

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