Ichthyological terms, not general ones.
Common name for Ichthyophthirius multifiliis, a protozoan which infects freshwater fish. Commonly referred to as white spot due to the characteristic white nodules formed under the skin or gill tissue during the feeding stage of its life cycle.
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A chemical or organic substance which kills fishes.
The fish life inhabiting a particular habitat, country, or region.
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A fossil or fossilized part of a fish.
Branch of zoology concerned with the study of fishes.
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Eating or otherwise subsisting on fishes.
Any toxic substance derived from fishes.
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Species identification key comprising pairs of alternative choices arranged in a series of couplets, used commonly in ichthyological papers.
A division of organisms into two groups, typically based on a characteristic present in one group and absent in the other.
Having two different colour forms independant of sex or age.
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The quality or condition of being dichromatic.
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The specific position or function that an organism fills in an ecosystem.
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Bony structures that form segments of the soft fin rays in Osteichthyes.
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Type of lowland stream found in South American savannas with riparian forest dominated by the moriche palm (Mauritia flexuosa). Often subject to seasonal flooding.
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The position or role occupied by an organism within an ecological community.
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An overlap in resource requirements by two or more species.
Superclass of fishes possessing bony, as opposed to cartilaginous, skeletons. Also known as bony fishes.
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One who studies fish fossils.
Difference in colour pattern between males and females of a single species.
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The number of species present in a given sample, habitat, or otherwise specified geographical region.