Part of the water column near to the seabed and the benthos
Further information on this zone: Demersal fish
Marine habitats
This bluespotted ribbontail ray lives in the demersal zone on or just above the seafloor
Coastal habitats
Littoral zone
Intertidal zone
Estuaries
Mangrove forests
Seagrass meadows
Kelp forests
Coral reefs
Continental shelf
Neritic zone
Ocean surface
Surface microlayer
Epipelagic zone
Open ocean
Pelagic zone
Oceanic zone
Sea floor
Seamounts
Hydrothermal vents
Cold seeps
Demersal zone
Benthic zone
Marine sediment
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The demersal zone is the part of the sea or ocean (or deep lake) consisting of the part of the water column near to (and significantly affected by) the seabed and the benthos.[1] The demersal zone is just above the benthic zone and forms a layer of the larger profundal zone.[citation needed]
Being just above the ocean floor, the demersal zone is variable in depth and can be part of the photic zone where light can penetrate, and photosynthetic organisms grow, or the aphotic zone, which begins between depths of roughly 200 and 1,000 m (700 and 3,300 ft) and extends to the ocean depths, where no light penetrates.[1]
^ abMerrett, Nigel R.; Haedrich, Richard L. (1997). Deep-Sea Demersal Fish and Fisheries. Springer. p. 296. ISBN 0412394103.
The demersalzone is the part of the sea or ocean (or deep lake) consisting of the part of the water column near to (and significantly affected by) the...
as clams and crabs living in this zone are called benthos. Just above the benthic zone is the demersalzone. Demersal fish can be divided into benthic...
Demersal fish, also known as groundfish, live and feed on or near the bottom of seas or lakes (the demersalzone). They occupy the sea floors and lake...
The benthic zone is the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and...
littoral zone, also called litoral or nearshore, is the part of a sea, lake, or river that is close to the shore. In coastal ecology, the littoral zone includes...
intertidal zone or foreshore is the area above water level at low tide and underwater at high tide: in other words, the part of the littoral zone within the...
the oceanic zone. The open ocean is vertically divided into four zones: the sunlight zone, twilight zone, midnight zone, and abyssal zone. The Mesopelagic...
of the high seas or an exclusive economic zone and another part of the high seas or an exclusive economic zone are subject to the legal regime of transit...
The neritic zone (or sublittoral zone) is the relatively shallow part of the ocean above the drop-off of the continental shelf, approximately 200 meters...
at higher elevations on warmer equator-facing slopes. Because the alpine zone is present only on mountains, much of the landscape is rugged and broken...
the tide pool." The rocky shoreline exhibits distinct zones with unique characteristics. These zones are created by the tidal movements of water along the...
An exclusive economic zone (EEZ), as prescribed by the 1982 United Nations Convention on the Law of the Sea, is an area of the sea in which a sovereign...
wind. Demersalzone – the zone at or near the bottom of a sea or lake. Inhabitants of the demersalzone feed off the bottom or off other demersal fish...
pelagic and demersalzones. Pelagic habitats are found near the surface or in the open water column, away from the bottom of the ocean. Demersal habitats...
and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments and are an example of...
live in the pelagic zone of ocean or lake waters—being neither close to the bottom nor near the shore—in contrast with demersal fish that live on or...
water nearby. The drop-off zone applies mainly to the reefs surrounding oceanic islands and atolls. The reef face is the zone above the reef floor or the...
referred to as the euphotic zone (also referred to as the epipelagic zone, or surface zone). The lower portion of the photic zone, where the light intensity...
also called legering in the United Kingdom, is fishing of the bottom (demersalzone) of a deep body of water such as lake or ocean, targeting groundfish...
oceanic plate dives beneath continental crust in an offshore subduction zone such as off the coast of Chile or the west coast of Sumatra. The largest...
accumulated as part of the fouling community on the hulls of vessels. The demersalzone supports many animals that feed on benthic organisms or seek protection...
legal framework. Bottom trawling – Fishing method for fishing trawlers Demersal fish – Fish that live and feed on or near the bottom of seas or lakes Human...
(burial). Aphotic zone Benthic fish Benthopelagic fish Bioirrigation Bottom feeder Deep sea Deep sea communities Deep sea mining Demersal fish Intertidal...
morphology of the sediment. For qualititative sampling within the littoral zone, for both coarse and fine sediment, a bucket and spade will work. In the...
The bathypelagic zone or bathyal zone (from Greek βαθύς (bathýs), deep) is the part of the open ocean that extends from a depth of 1,000 to 4,000 m (3...
particularly rich habitats. In photic zones benthic diatoms dominate as photosynthetic organisms. In intertidal zones changing tides strongly control opportunities...
discovered. Most of the fish species in this zone are characterized as demersal or benthopelagic fishes. Demersal fishes are a term that refers to fishes whose...
The photic zone (or euphotic zone, epipelagic zone, or sunlight zone) is the uppermost layer of a body of water that receives sunlight, allowing phytoplankton...
thickets or mangals, are productive wetlands that occur in coastal intertidal zones. Mangrove forests grow mainly at tropical and subtropical latitudes because...
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