Origin
Trout is a widespread representative of salmonids, present in our waters as a result of artificial population or by Escape from ponds, by their feeding waters or along with the drainage waters in the pools.
It is bred with great success in industrial farms on the continent, being sold then on the market, as a product highly demanded especially by the big restaurants.
In our country, this fish is not found in many natural streams, but it grows with great success in ponds.
It is present in the following rivers and lakes in our country: Tibles Valley, Minis and Nera, varghis, Cormos and Casinul, Slanic, Teleajen, Azuga, Red Lake, Campul Cetatii, Niraj, Vida, Crisul Negru, Finis, Vascau, Somesul Rece, Jiu, Bistrita Aur, Lotru, Trotus, Putna, Slanic waters, Brodina, Sucevita, firiza Creek etc.
Trout Feed
the meat of the trout from the mountain rivers is identical in taste to that of the indigenous trout, rainbow trout grown in ponds have an inferior taste, due to the forage consumed. Their meat is slightly fatter than that of Indigenous Trout.
The food of the lake trout is very varied, from small insects and larvae (even adult specimens, a few kg can be seen frequently biting), small crustaceans, mollusks, racusori, salamanders, frogs, mice or even waterfowl but pupa age of 1 year the basis of food is made up of fish, greens (craeti) and zglavoace.
Very often the meat of wild lake trout has a pinkish or even orange color, the same as that of salmon. This Color is given by natural food, it seems to come from small crustaceans very hunted by Trout.
In consumer, farmed Trout, the color is given by a substation introduced into the feed. It's about astaxanthin or Pink Carophill, a synthetic vitamin that prints a protocol color to fish meat.
Features Trout
The body, with a flattened spindle shape, is slightly wider and the scales somewhat larger than those of the indigenous Trout. The muscles are equally developed, which is vital to move freely in the fast mountain waters. The teeth, strong, are placed similar to the native trout. On the back can be distinguished adipose dorsal characteristic of salmonids.
The essential differences between the two species of trout appear in the most obvious way in color. The hindwings of rainbow trout are bluish-grey, sometimes with lilac hues. The sides are shiny silver, the belly is white.
On the body are distinguished several small unedged spots with white. From the opercula to the caudal, on both sides stretches a reddish-pearlescent stripe, which plays in the shades of the rainbow, hence the name of the fish (near the Red Stripe can sometimes be seen blue or greenish stripes).
The pace of development of Trout is faster. It develops extremely quickly in conditions of breeding, where it capitalizes with efficiency the feed but especially the food from slaughterhouses. It is not as picky in terms of water temperature and its oxygen content, it can also be found at lower altitudes, namely in the preferred regions of grayling or toothpick.
It is known that at these lower altitudes the water is warmer, sometimes more cloudy and with a lower dissolved oxygen content than that of the upper courses (between the mountains) of the rivers. In natural waters, Trout's favorite places are around stones, various larger objects (bridge legs, poles, etc.) in the water, under the washed banks of rivers.
If the water does not bring him sufficient food, he leaves these places, moving on to hunting.
Trout Breeding
The breeding of rainbow trout shows a characteristic, namely that it reproduces in the spring, unlike the indigenous trout, which reproduces in the fall.
The fact that rainbow trout spawns in February-April favors its artificial reproduction. The female lays about 20000-50000 eggs with a diameter of 4-5.5 mm.
Because in Romania most of the lakes populated with lake trout are Dam lakes where the water level fluctuates sometimes by tens of meters are very rare cases when the tips deposited over the fall get to hatch, most of the time they remain on land or being clogged by too much water which leads to the killing of embryos in spawning.
