Aquaculture Some Definitions and Terminology

➧Brood Stock
Total number of fish in a pond at any specific place.Stocking collect fish for putting in to pond.

➧Brooder

Large fish which is used for progeny is called brooder.

➧Fry

After hatching the fish larva size in finger length.

➧Spawing

Production of meat and eggs from male and female fish.

➧Catadromous

Those fishes include move from lake or river to marine or salt water.

➧Anadromous

They move from marine salt water to river lake.

➧Fish husbandery

Reproduction and breeding or rearing.

➧Mortality

Death rate in a specific time.

➧Eutrophication

Due to excess of oxygen fish death occur.

➧Invitro

Laboratory conditions

➧In vivo

Inside the cell.

➧Flow rate

Amount of water from a specific place at a specific time.

➧Visera

All internal material present in fish collectively called visera

➧Upper column 

Protective covering of gills.

➧Turbidity

Suspended solid things in water.

➧Poly culture

Two or more than two species culture together.

➧Mono culture

One type of species culturing.