Fish, such as trout, raised to become replenishment stock for natural sport fisheries.
Determining the genetic makeup of a fish or stock or the purpose of managing the efficiency of aquaculture production.
A unit of scientific classification that includes one or several closely related species.The scientific name for each organism includes designation for genus and species.
The highly vascular, fleshy filaments used in aquatic respiration and excretion.
The reproductive organs (testes or ovaries).