GENETIC ANALYSIS OF A BROWN TROUT Salmo trutta BROODSTOCK IN HUNGARY WITH IMPLICATIONS FOR STOCKING INTO NATURAL WATERS

摘要

Brown trout is cultured throughout Europe with the primary purpose of stocking into angling waters. Information on the genetic background of the stocked material is of primary importance to avoid introduction of allochthonous genes into a local population. Brown trout broodstocks have historically been formed primarily of the Atlantic lineage, yet, in many cases they are stocked indiscriminately into waters that hold populations of different lineages. Hungary, due to its geographical conditions, is relatively poor in salmonid waters, thus, there exists only one farmed brown trout broodstock which is used for stocking of natural waters. All of the country's waters belong to the Black Sea drainage, which has been originally populated with the brown trout of the Danubian lineage. To determine the lineage of the broodstock, its genetic background was studied.