ammocoete


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ammocoete

[′a·mə‚sēt]
(zoology)
A protracted larval stage of lampreys.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
denticulata Nicolet, 1849 and Geotria australis ammocoetes larvae, in fluvial and lacustrine systems of Chile.
australis larval stage ammocoetes are part of the benthic community inhabiting sandy and muddy substrates of the coastal river systems of central southern Chile (Neira, 1984; Jara, 1989).
Pacific lamprey ammocoetes spend 3-7 years in riverine sediments before metamorphizing into juveniles, migrate downstream to spend 3-4 years in marine waters, and spawn 1 year after re-entering freshwater (Beamish, 1980; Beamish and Levings, 1991).
Eyed lampreys were identified to species by dentition; ammocoetes, in which developing eyes are covered with skin, were grouped into a single category.
Ecological impacts of lampricide treatments on sea lamprey (Petromyzon marinus) ammocoetes and metamorphosed individuals.
Occurrence, relative abundance, and size of landlocked sea lamprey (Petromyzon marinus) ammocoetes in relation to stream characteristics in the Great Lakes.
For each specimen total preserved length, as well as whether or not the lamprey was in the ammocoetes or adult (i.e., transformed) stage was recorded.
Lamprey behavior and potential threats to survival of migrating lamprey ammocoetes and macrophthalmia.