The Stanislaw Sakowicz Inland Fisheries Institute 1 article published in JoVE Developmental Biology Effectiveness of the Air Stripping in Two Salmonid Fish, Rainbow Trout (Oncorhynchus Mykiss) and Brown Trout (Salmo Trutta Morpha fario) Radosław Kajetan Kowalski1, Beata Sarosiek1, Sylwia Judycka1, Katarzyna Dryl1, Joanna Grudniewska2, Stefan Dobosz2, Beata Irena Cejko1 1Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Science, 2Department of Salmonid Fish Research, The Stanisław Sakowicz Inland Fisheries Institute The principal aim of this study is to standardize and test the pneumatic method (air stripping) of collecting eggs in rainbow trout and brown trout. This method allows effective and simple collection of the eggs without the necessity of fish abdomen massage.