noun
- Young fish, especially salmon or trout, in the early stage of development after hatching and before they become fry.
Usage: Plural of alevin; Primarily used in ichthyology and fish farming contexts; The alevin stage occurs when the yolk sac is still present
Examples
- The hatchery released thousands of alevins into the river to boost the salmon population.
- Alevins remain in the gravel substrate until their yolk sacs are absorbed.
- Fish biologists monitor the health of alevins during the critical early weeks.
- The alevins will develop into fry once they begin feeding independently.
- Proper water temperature is essential for the survival of alevins in aquaculture.