GOEDE L (1987) Current research: Selenium in waders from the Wadden. LIMOSA 60 (2): 102-102.

In recent research into heavy metals in waders the Dutch Wadden Sea were surprisingly high concentrations of the element selenium (Se) in organs found. Vitamin literature is known that in chickens with 10-15 ppm (parts per million) and selenium in kidney liver, adverse effects in reproduction: egg production, egg weight and percentage of hatched eggs be greatly reduced and dead embryos and hatched young often appear misshapen. at stelilopers high concentrations were found in The bar-tailed godwit, even to 115 ppm in the liver. in California also recently been in waterfowl (freshwater) gehaltens 19-130 ppm in livers of 'found and correspondingly high embryonic mortality and embryonic abnormalities.

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