Terms Flashcards
Ecology
The study of interactions among organisms and their environments
Fisheries
The industry devoted to the catching, processing, and/or selling of fish, shellfish, or other aquatic animals
Carrying capacity
The population, density or weight of a species that a habitat can handle
By-catch
The incidental take of non-target species in a fishery
Escapement
That portion of a fish population that escapes predators fisheries, etc and is able to spawn naturally
Diadromous
Fish that use both marine and freshwater habitats during their life cycle
Catadromous
Fish that leave freshwater and migrate to the sea to spawn
Anadromous
Fish that leave the sea and migrate into freshwater habitats to spawn
Homing
To return to ones natal area from a distance
Olfaction
A fish’s sense of smell
Osmoregulation
The process by which a fish adjusts and maintains homeostatic (internal stability) control in a changing environment
Otolith
A fish’s ear stone. Can be used to assess age, growth, environmental change, etc
Iteroparous
Has the ability to spawn more than once
Semelelparous
Spawns only once in a lifetime, then dies
Fecundity
Number of eggs per female spawner
