Development of Atlantic salmon (Salmo salar) eggs and alevins under varied temperature regimes. ❋ Unknown (2009)
The brigade that is on the Mariel project remains, because the Mariel project is advantageous under any circumstances, and we will now build two dams here in Pinar del Rio, a center with 20 tanks for hatching alevins, and a canal. ❋ Unknown (1990)
We will bring in alevins from the tanks that you are building in San Cristobal so that we can breed them here to. ❋ Unknown (1990)
When this is observed some very finely divided food should be offered to these alevins. ❋ Charles Edward Walker (N/A)
In a few days from the first of the alevins beginning to feed, all of them will be working up with their heads to the current, darting at any particles floating in the water. ❋ Charles Edward Walker (N/A)
As they are lighter than the alevins, the current will generally carry them to the lower end of the tray, whence they may be removed with a piece of gauze spread on a wire ring, or by raising and lowering the tray gently in the water in alternately slanting directions. ❋ Charles Edward Walker (N/A)
Dead alevins should be removed at once, and for this reason it is necessary that the hatching trays should be examined at least once a day. ❋ Charles Edward Walker (N/A)
The mortality which occurs in the actual hatching out of the alevins does not, however, by any means end the trouble which the fish culturist has to encounter in the rearing of char. ❋ Charles Edward Walker (N/A)
A greatly varying period of time having elapsed and the yolk-sacs of the alevins being nearly absorbed, the fish culturist will see that some of the little fish begin to leave the pack at the bottom of the tray, and to swim up against the current. ❋ Charles Edward Walker (N/A)
There are, however, several diseases besides fungus (of which I have spoken already when dealing with the ova) from which the alevins may suffer. ❋ Charles Edward Walker (N/A)
"Blue Swelling" of the yolk-sac is another disease from which alevins sometimes suffer, but I have never heard of any cure for this. ❋ Charles Edward Walker (N/A)
Buckland observed that the alevins of the char very frequently hatch out head first, and consequently that many of them die before they can work themselves free from the eggs. ❋ Charles Edward Walker (N/A)
This is best done in the same way that the alevins were allowed to escape from the hatching tray into the box -- by lowering the level of the box so that its upper edges are some two or three inches below the surface of the water. ❋ Charles Edward Walker (N/A)
Sickly alevins will, as a rule, drop out of the pack, and lie on the bottom or against the end of the hatching tray, where they are carried by the current. ❋ Charles Edward Walker (N/A)
When hatched out and kept in water containing a very large quantity of air in solution, I found that sometimes alevins developed an air bubble in the yolk-sac. ❋ Charles Edward Walker (N/A)
This sac is gradually absorbed but until it is absorbed the young fish are called "alevins." ❋ Charles Edward Walker (N/A)
As soon as the yolk-sacs of the alevins are absorbed the little fish cease to be alevins, and are called "fry." ❋ Charles Edward Walker (N/A)
An effectual cure for this is to put the affected alevins into still water for about thirty-six hours. ❋ Charles Edward Walker (N/A)
I have observed this affection in the alevins of the rainbow trout (_Salmo irideus_), the common trout (_S. fario_) and the Quinnat or Californian ❋ Charles Edward Walker (N/A)
Pounded liver shaken up in a bottle with water, and after the larger particles have been allowed to settle at the bottom, poured into the rearing box in small quantities, is a good form of food for the alevins when they first begin to feed. ❋ Charles Edward Walker (N/A)
What number comes after [ten]? Oh [I dont know] Alevin [ya idiot]. ❋ HitlerCousin69 (2018)
