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''Salmo obtusirostris'', also known as the Adriatic trout,〔 Adriatic salmon,〔 and softmouth trout, is a species of salmonid fish endemic to the rivers of Western Balkans in southeastern Europe. The scientific name has changed several times through history; synonyms include ''Thymallus microlepis'', ''Salmothymus obtusirostris'' and ''Salar obtusirostris''.〔 This species spawns in the early spring and is an obligatory freshwater fish.〔 They are an important game fish. ==Distribution and subspecies== ''Salmo obtusirostris'' is found naturally in four drainages of the Adriatic Sea, in Croatia, Bosnia and Herzegovina and Montenegro: the Neretva-Vrljika system, the Jadro, the Morača-Zeta system and the Krka river drainages.〔〔 In addition, sometimes during 1960's, it has been introduced from the Jadro river to nearby the Zrnovnica river, both small karst, single river drainage, of very short course, in vicinity of city of Split.〔 Although the Vrljika belongs to the Neretva River drainage it's a sinking river, divided in several on surface and underground segments, hence separated from the Neretva River in significant manner regarding softmouth trout populations. However, the Vrljika softmouth trout is apparently most similar to the Neretva's subspecies, while some autapomorphies exist in the Vrljika population. The Vrljika softmouth trout appears to have originated from a vicariance that split a common ancestral population into large (Neretva) and small (Vrljika) fragmented populations. The different populations are sometimes classified into subspecies:〔 * ''Salmo obtusirostris oxyrhynchus'': Neretva and its tributaries the Buna, the Bregava, the Rama, the Trebižat in Bosnia and Herzegovina and the Vrljika within both Bosnia and Herzegovina and Croatia *''Salmo obtusirostris salonitana'': the Jadro River and the Žrnovnica River in Croatia *''Salmo obtusirostris krkensis'': the Krka river in Croatia *''Salmo obtusirostris zetensis'': the Zeta River and the Morača River in Montenegro. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Salmo obtusirostris」の詳細全文を読む スポンサード リンク
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