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  2. Demersal zone - Wikipedia

    en.wikipedia.org/wiki/Demersal_zone

    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 .

  3. Pelagic zone - Wikipedia

    en.wikipedia.org/wiki/Pelagic_zone

    Altogether, 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). [2] [3] [4] Pelagic life decreases as depth increases. The pelagic zone contrasts with the benthic and demersal zones at the bottom of the sea. The benthic zone is the ecological region at the ...

  4. List of U.S. state birds - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._state_birds

    The northern cardinal is the state bird of seven states, followed by the western meadowlark as the state bird of six states. The District of Columbia designated a district bird in 1938. [ 4 ] Of the five inhabited territories of the United States , American Samoa and Puerto Rico are the only ones without territorial birds.

  5. List of birds of Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/List_of_birds_of_Pennsylvania

    This list of birds of Pennsylvania includes species documented in the U.S. state of Pennsylvania and accepted by the Pennsylvania Ornithological Records Committee (PORC). As of May 2021, there were 439 species on the official list. [ 1 ]

  6. New Pa. bird fund proposed to create more habitat for birds ...

    www.aol.com/pa-bird-fund-proposed-create...

    Sen. Greg Rothman, R-34, in Perry County and parts of Cumberland and Dauphin counties, sent a memorandum on Wednesday to his fellow senators seeking support for a State Bird Fund.

  7. Demersal fish - Wikipedia

    en.wikipedia.org/wiki/Demersal_fish

    Demersal fish can be divided into two main types: strictly benthic fish which can rest on the sea floor, and benthopelagic fish which can float in the water column just above the sea floor. Benthopelagic fish have neutral buoyancy , so they can float at depth without much effort, while strictly benthic fish are denser, with negative buoyancy so ...

  8. Marine habitat - Wikipedia

    en.wikipedia.org/wiki/Marine_habitat

    Marine habitats can be broadly divided into pelagic and demersal habitats. Pelagic habitats are the habitats of the open water column, away from the bottom of the ocean. Demersal habitats are the habitats that are near or on the bottom of the ocean. An organism living in a pelagic habitat is said to be a pelagic organism, as in pelagic fish.

  9. Marine larval ecology - Wikipedia

    en.wikipedia.org/wiki/Marine_larval_ecology

    Larval dispersal is one of the most important topics in marine ecology, today.Many marine invertebrates and many fishes have a bi-phasic life cycle with a pelagic larva or pelagic eggs that can be transported over long distances, and a demersal or benthic adult. [1]

  1. Related searches demersal vs pelagic benthic birds in pa state of indiana map of counties

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