Vocab Words
Parts Per Minute
PPM
PPT
Measurement of Total Ammonial Nitrogen
TAN
Measured in ppm calcium
Hardness
Recorded as degrees F or C
Temperature
A substance in a solution that tends to stabilize the pH
Buffer
Trained Professional involved in the production of aquatic plants and animals
Aquaculturlist
Softening and cracking of the exoskeleton so that crustaceans may escape and grow a larger exoskeleton
Molt
Conductivity or ppt
Salinity
The accumulation of salts in water occurs most often when
Water is lost through evaporation
Mobile organisms that become fixed and grow into nonmobile adults
Larvae
Organs of aquatic animal that absorbs oxygen from the water
Gillds
Spawn
Egg-laying process of fish
Water quality is least affected by which of the following factors
a. Fish density
b. Weather
c. Chemical runoff
d. Fish species
Answer: Fish species
Small, newly hatched fish
Fry
Water influenced by tide and river flow with intermediate salinity of 3-22%
Brackish Water
The ecological system of plants and animals influenced by tidal waters with salinity of 15-34 parts per million
Saltwater marsh
Pond culture relies mostly on ______ recycling of fish waste products
Natural
A fish death can occur when a pond "rolls over"
Because of low levels of dissolved oxygen
A poisonous substance, causing injury to animals or plants
Toxin
The flow of a fluid through a semipermeable membrane separating two solutions which permits the passage of the solvent but not the dissolved substance
Osmosis
A process that occurs as heritable traits favoring the survival of an organism are passed from one generation to the next
Adaption
The _____ are where freashwater and seawater mix
Estuary
The greater the density of fish in a system, the ______
The more difficult the management