When rehabilitating and reintroducing trout Salmo trutta in rivers, it is a goal that as many possible survive, home form self-sustaining populations. Hatchery-reared, anadromous S. have significant lower ability to return the area where they were raised if (a) transported closed tank sea released 5 km from River Imsa, relative those (b) when swimming partly submerged with water run-through, wh...

Our understanding of how microbiome signatures are modulated in wild fish populations remains poorly developed and has, until now, mostly been inferred from studies commercial farmed populations. Here, for the first time, we have studied changes skin blood microbiomes Salmo trutta population volcanic Kerguelen archipelago located at northern limit Antarctic Ocean. The Islands present a natural ...

A survey of trout species was carried out to assess the stocks' quality inhabiting Palena River Basin, one most important rivers for recreational angling in Chilean Patagonia. Six sampling campaigns were over 16 selected stretches river between February 2012 and June 2013. total 912 collected, 57% rainbow (Oncorhynchus mykiss), 33.3% brown (Salmo trutta), 9.6% brook (Salvelinus fontinalis). Als...

Individual fish identification and recognition is an important step in the conservation management of fisheries. One most frequently used methods involves capturing tagging fish. However, these processes have been reported to cause tissue damage, premature tag loss, decreased swimming capacity. More recently, marine video recordings extensively for monitoring populations. require visual inspect...