pelagic zone

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pelagic zone:

see oceanocean,
interconnected mass of saltwater covering 70.78% of the surface of the earth, often called the world ocean. It is subdivided into four (or five) major units that are separated from each other in most cases by the continental masses. See also oceanography.
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Pelagic Zone


that part of a lake, sea, or ocean that is the habitat of pelagic organisms—plankton, necton, and pleuston. The pelagic zone is opposed to the benthic zone, that is, the bottom of the body of water, which is inhabited by benthos.

In oceans and seas, the pelagic zone is divided horizontally into two regions: the neritic (water above the shelf) and the oceanic (all the remaining water). Vertically the zone is divided, usually depending on the degree of illumination, into three regions: the euphotic (well illuminated), the dysphotic (feebly illuminated), and the aphotic (lightless). The zone is also broken down according to the distribution of life into the epipelagic, mesopelagic, and deep-water regions. In freshwaters, the pelagic zone is divided horizontally into two regions: the shore region (the water near the shore) and the pelagic region proper (all the remaining water). Vertically three regions are distinguished according to the rate of temperature drop: the epilimnion, the metalimnion, and the hypolimnion.

References in periodicals archive ?
Habitat: Benthopelagic (Parin, 1991; Froese & Pauly, 2015)
Ruvettus pretiosus Cocco, 1833, is commonly known as oilfish, escolar, escolar clavo or escolar rasposo, and is a benthopelagic species occurring in coastal marine waters at depths of 100-700 m in the Mediterranean and the Atlantic Ocean south of Bay of Biscay, commonly found near Madeira and the Canaries (Grey, 1953).
Lipids in selected abyssal benthopelagic animals links to the epipelagic zone?
lurida plays an important ecological role via benthopelagic coupling (Newell 2004), and because of the unique physical structure it provides for many other organisms such as larval fish and small invertebrates (Baker 1995).
Siliceous sponges as a silicon sink: an overlooked aspect of benthopelagic coupling in the marine silicon cycle.
The blurred lanternshark is both mesopelagic and benthopelagic, occurring over the outer continental shelves and slopes at depths ranging from 100 m to below 1,000 m.
Bathypelagic fish undergo even more profound changes than the benthopelagic fish, which are much more related to the seafloor.
The species is a benthopelagic fish with a long lifespan and is widely distributed along the southern Chilean coast, Patagonian shelf, and sub-Antarctic islands and seamounts at depths of 1000-2000 m (Appleyard et al.
It is a benthopelagic and amphidromous fish (Riede, 2004) found in tropical waters (Nakamura and Parin, 1993) along the coastal waters of Indo-west Pacific and Indian Ocean (Bianchi, 1985; Nakamura and Parin, 1993).
Oyster harvesting appeared to have decreased the number of large oysters and to have increased the percentage of reefs that were nonliving by decreasing water column filtration and benthopelagic coupling.