8/27/15

BATAS PENYEBARAN BENTHIC



Jenis-jenis fauna utama yang terdapat di dasar lautan (Open University Course in oceanography unit 10, 1977)

Phylum
Subgrup dan nama umum
Cnidaria
Hydrozoa (hydroid coelenterates
Plathyhelminthes
Turbellaria (Flatworms
Annelida
Polychaeta (bristle worms, lugwworms)
Mollusca
Gastropoda (snails and sea-slugs)
Anthropoda
Crustacea (especially ostracods, copepods, ciripedes, malacostracans)
Echinodermata
Crinoidea (sea lilies)
Holothuroidea (Sea- cucumbers)
Echinoidea ( sea- urchins)
Asteroidea (starfish)
Ophiuroidea (brittle stars)
Hemichordata
Enteropneusta (acron-worms)
Chordata
Urochordata (sea-squirts)
Cephalochordata (Amphioxus)
 

Various types of invertebrate fauna, are often found in the benthos. They have a very wide size range that is of the size of protozoa up to the size of crustasea and mollusks.This measure is sometimes used as a basis for their mengkalsifikasikan.Microfauna this term is used to describe the fauna that have a size smaller than 0.1 mm. the whole protozoa included in this class.Meiofauna is a group of animals that have a size of between 0.1 mm-1.0 mm. This includes a large group of protozoa, Cnidaria, worms are small and some are so small that crutasea.Macrofauna include animals that have a size greater than 1.0 mm. including Echinodermata, crustasea, annelids, mollusks and members of several other phyla.Another way to classify benthic fauna is to look at their relationship to a place of life. All the animals that live on the surface of the ocean floor known as epifauna and that his life by digging a hole in the bottom of the ocean known as infauna.

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