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The pelagic zone occupies 1,330 million km 3 (320 million mi 3) with a mean depth of 3.68 km (2.29 mi) and maximum depth of 11 km (6.8 mi). Fish that live in the pelagic zone are called pelagic fish. Pelagic life decreases with increasing depth.


Pelagic Organism a plant or animal that inhabits the open sea and the surface of a lake, sea, or ocean—the pelagic zone. Pelagic organisms are contrasted with benthic ones, that is, benthos. They are divided into organisms that passively float on the surface of the water (pleuston) or in its depths (plankton) and organisms that swim (nekton). A ...


The following are the major points of distinction between the benthic and pelagic zones. Types of Organisms The higher regions of the pelagic zone, such as the epipelagic zone, receive an abundance of sunlight, and hence, organisms capable of photosynthesis are found there.


Pelagic zone, ecological realm that includes the entire ocean water column. Of all the inhabited Earth environments, the pelagic zone has the largest volume, 1,370,000,000 cubic kilometres (330,000,000 cubic miles), and the greatest vertical range, 11,000 metres (36,000 feet).Pelagic life is found throughout the water column, although the numbers of individuals and species decrease with ...


Accounting for some 330 million cubic miles, the pelagic zone -- the offshore waters of the ocean -- is the world’s most extensive habitat. Although vast reaches of it are, compared to the lively richness of coastal realms, relatively barren, the open ocean plays host to a vast array of wildlife.


Definition of pelagic organisms. When talking about pelagic organisms, we are referring to all those species that inhabit the middle waters of the oceans and seas, or near the surface . . Therefore, it is clear that this type of aquatic living beings limit, and much, contact with areas of great depth.


Pelagic organisms. live suspended in the seawater; comprise the vast majority of the oceans biomass; split into floaters and swimmers; Staying above the ocean floor. some animals increase their buoyancy; with containers of gas; have soft bodies with no hard high density parts; Gas Containers. air is ~1000 times less dense than water


Relating to or living in or on oceanic waters. The pelagic zone of the ocean begins at the low tide mark and includes the entire oceanic water column. The pelagic ecosystem is largely dependent on the phytoplankton inhabiting the upper, sunlit regions, where most ocean organisms live. Biodiversity decreases sharply in the unlit zones where ...


Pelagic fish 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, which do live on or near the bottom, and reef fish, which are associated with coral reefs.. The marine pelagic environment is the largest aquatic habitat on Earth, occupying 1,370 million cubic kilometres (330 million cubic miles), and is ...


Pelagic Organism Decline Overview. The Interagency Ecological Program (IEP), a consortium of nine state and federal agencies, has been monitoring aquatic organisms and water quality in the San Francisco estuary for decades. Since late 2004, scientific and public attention has focused on the unexpected decline of several pelagic (open-water) fishes (delta smelt, longfin smelt, juvenile striped ...