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adaptation to a new environment by a population by selection.
an organisation in Australia in the mid-nineteenth century set up to introduce familiar European species, e.g. roach, Rutilus …
having a gentle upward slope.
changing the focus of the eye; in fishes the lens moves back and forth in relation to the retina like a camera.
F-value (in food inspection, the total lethal effect of heat applied; the time/temperature process at the cold spot of the …
without vertebral centra, with persistent notochord, e.g. Dipnoi, Holocephali.
an irrigation ditch or canal, often community run (southwest United States).
an organic acid, CH3COOH, used in diluted form in preparation of fish marinades, q.v.
dermal bone (any of the superficial bones in Teleostomi derived from the dermis and overlying the deeper elements of the …
an external fungal infection of fishes, genus Achyla.