bathyal zone

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bathyal zone

[′bath·ē·əl ‚zōn]
(oceanography)
The biogeographic realm of the ocean depths between 100 and 1000 fathoms (180 and 1800 meters).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The YC7-4, YC19-1, YC21-1, and YC35-1 structures were mainly developed in settings changing from fan delta and onshore to littoral-neritic and neritic to bathyal environment.
Studies of bathyal and sublittoral sites indicate that foraminiferal communities show seasonal (as well as shorter time-scale) changes resulting from the level of primary production (Gooday, 1993; Thomas and Gooday, 1996; Schmiedl et al., 2000; Fontanier et al., 2003) and organic carbon flux (Wollenburg and Kuhnt, 2000).
The book features descriptions of each of the groups covered, detailed line drawings of species within each group, and maps showing the distribution of bathyal and abyssal species of the Arctic Ocean.
nigricans usually inhabits a water column with a height of about 200 m or more and is the most tropical of all xiphioid species, its presence supports the hypotheses that the Oso Member was deposited at upper bathyal depths or greater and that the coastal paleoclimate of southern California was warmer during the late Miocene than at present.
In The Silent Deep, Koslow--a former CSIRO marine scientist--provides his readers with a full account of the deep ocean, including the history of exploration, the chemical and physical forces that generate life, and the ecology of seamounts and the species-rich (possibly the richest) ecosystems that are the abyssal and bathyal plains.
The Cenozoic benthic foraminiferal assemblages in most of these wells, as described from cuttings samples plus occasional sidewall core samples, are typical for neritic or upper or lower bathyal conditions.
The deep system is then divided into three major zones or habitats: bathyal, abyssal, and hadal.