Fisheries Research Services, Freshwater Laboratory, Faskally, Pitlochry, Perthshire, Scotland, U.K.
J Fish Biol. 2009 Apr;74(6):1347-52. doi: 10.1111/j.1095-8649.2009.02201.x.
In 2005, a high percentage (50%) of Atlantic salmon Salmo salar fitted with acoustic transmitters, which entered rivers in the Cromarty Firth area of north-east Scotland, dropped back to the estuary and ascended adjacent rivers after 33-80 days of freshwater residence. Fish residing in non-natal rivers generate mixed stock fisheries, and movements of fish between rivers could increase the risk of disease transmission between catchments.
2005 年，在进入苏格兰东北部克罗马蒂湾（Cromarty Firth）地区河流的大西洋三文鱼（Salmo salar）中，有很大比例（50%）的鱼身上装有声学发射器，在淡水中生活 33-80 天后，这些鱼又返回河口并溯流而上进入附近的河流。生活在非出生地河流中的鱼会形成混合种群渔业，鱼类在河流之间的移动可能会增加流域间疾病传播的风险。
