Starry flounder

Starry flounder, Platichthys stellatus, Fraser River, British 0.04-0.06 DW 17... 

Starry flounder tended to retain aromatic hydrocarbons for longer periods than coho salmon when both organisms were transferred to clean water. After two weeks in clean water, the muscle of starry flounder contained 26 ppm of C4/C5-substituted benzene... 

Table I Hydrocarbons in muscle tissue of coho salmon [O. kisutch) and starry flounder (P. stellatus)...

Mean 2 Standard error of mean for two 10- to 15-g composite samples each prepared from separate groups of starry flounder (5 fish/ group)... 

Namdari R. 1998. A physiologically based toxicokinetic model of pyrene and its major metabolites in starry flounder, Platichthys stellatus. Thesis dissertation, Burnaby, British Columbia (CA) Simon Fraser University. 

Although no specific metabolites have been identified, atrazine has been shown to turnover cytosolic glutathione 5-transferase indicating conjugation in zebrafish, rainbow trout, starry flounder (.Platichthys stellatus) and English sole (.Pleuronectes vetulus)22,90. Approximately 50% of atrazine was converted to four uncharacterized metabolites in zebrafish36. 

BIOACCUMULATION Fish BCF (in muscle of Starry flounder) 700 after 1 week exposure, 240 after 2 weeks, 100 after 1 week depuration, 270 after 2 week depuration BCF (in muscle of Coho salmon) 20 after 2 week exposure, 50 after 3 weeks, 80 after 5 weeks, 40 after 6 weeks BCF (Atlantic salmon eggs, 168hr) 82.5 moderate bioconcentration, however depuration is rapid when the organism is placed in water free of the pollutant readily metabolized in fish more data in referenced sources... 

European flounder, Platichthys flesus, 457, 630 Paralichthys spp., 167 Platichthys spp., 661 Pleuronectes spp., 689, 775 Starry flounder, Pleuronectes stellatus, 47 Summer flounder, Paralichthys dentatus, 182 Winter flounder, Pleuronectes americanus, 83, 117, 269, 627, 662, 111... 

Myers MS, Stehr CM, Olson OP, Johnson LL, McCain BB, Chan S-L, Varanasi U (1994) Relationships between toxicopathic hepatic lesions and exposure to chemical contaminants in English sole Pleuronectes vetulus), starry flounder (Platich-thys stellatus), and white croaker (Genyonemus lineatus) from selected marine sites on the Pacific coast, U.S.A. Environ Health Perspect 102 2-17. 

Varanasi U, Gmur DJ, Treseler PA (1979) Influence of time and mode of exposure on biotransformation on naphthalene by juvenile starry flounder Platichthys stellatus) and rock sole Lepidopsetta bilineata). Arch Environ Contam Toxicol 8 673-692. 

Identification of the formed metabolites from the PAHs exposition in different groups of living beings is an important issue, sinee it allows a correlation between the test-system and extrapolation of the obtained results to other organisms. Aoeording to Ahokas (1979) and Ronis et al. (1992) microsomes of the trout Salmo trutta lacnstris), starry flounder (Platychthys stellatus) and echo salmon (Oncorhynchus kisutch) liver, metabolize B[a]P in metabolites similar to those produced by rat liver microsome. The main metabolites produced... 

Varanasi, H., Nishimoto, M., Reichert, W. L. Ebeihalt, B. (1986). Comparative metabolism of benzo(a)pyrene and covalent binding to hepatic DNA in English sole. Starry Flounder, and rat. Cancer Research, 46,3817-3824. 

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