Method of chemical marking for identifying fish stocks such as salmon using strontium chloride or hygroscopic compounds, thereof

摘要

A method for chemically marking fish, and particularly salmon to determine migration patterns and spawning locations involves chemically marking salmon taken along select salmon origin, migration patterns or paths, and spawning areas. This avoids stress problems caused by current tagging, or physical marking of the salmon, and the detection system is less expensive and more accurate. Preferred chemical markers are strontium chloride and/or hygroscopic salts, thereof.