Levels of major organochlorine contaminants in sequentially - laid Herring Gull eggs

摘要: Abstract Sequentially laid eggs of Herring Gulls in Lake Erie and the Detroit River (Ontario) were found to contain increasingly higher levels organochlorine contaminants. The reason for this was not determined but a depletion lipid pools during egg laying period rapid equilibrium between body burdens may explain results. It is recommended that, long term toxic residue monitoring, at same position order be taken from all sampled clutches.