PERIFITON PDF

Peran alga perifiton dalam perairan lotik mengalir yang cukup besar selain sebagai produsen dan sumber makanan juga terhadap arus energi dalam tiap tingkat trofik Odum, , sehingga keanekaragaman dan dominansi dari alga perifiton sebagian besar menentukan keanekaragaman jenis dari kelompok-kelompok trofik dan seluruh komunitas Clements, ; Genter, Pada perairan lotik alga perifiton lebih berperan sebagai produsen daripada fitoplankton. Hal ini disebabkan karena fitoplankton akan selalu terbawa arus, sedangkan alga perifiton relatif tetap pada tempat hidupnya. Alga perifiton juga penting sebagai makanan beberapa jenis invertebrata dan ikan Graham dan Wilcox, Karena perifiton relatif tidak bergerak, maka kelimpahan dan komposisi perifiton di sungai dipengaruhi oleh kualitas air sungai tempat hidupnya.

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Periphyton in the Everglades The shell of Eustrombus gigas in its natural habitat is covered by periphyton. Periphyton is a complex mixture of algae , cyanobacteria , heterotrophic microbes , and detritus that is attached to submerged surfaces in most aquatic ecosystems. The related term Aufwuchs German "surface growth" or "overgrowth" refers to the collection of small animals and plants that adhere to open surfaces in aquatic environments, such as parts of rooted plants. Periphyton serves as an important food source for invertebrates , tadpoles , and some fish.

It can also absorb contaminants , removing them from the water column and limiting their movement through the environment. The periphyton is also an important indicator of water quality ; responses of this community to pollutants can be measured at a variety of scales representing physiological to community-level changes.

Periphyton has often been used as an experimental system in, e. In both marine and freshwater environments, algae — particularly green algae and diatoms — make up the dominant component of aufwuchs communities. Small crustaceans , rotifers , and protozoans are also commonly found in fresh water and the sea, but insect larvae , oligochaetes and tardigrades are peculiar to freshwater aufwuchs faunas. Periphyton communities are used in aquaculture food production systems for the removal of solid and dissolved pollutants.

Their performance in filtration is established and their application as aquacultural feed is being researched. A risk for periphyton stems from urbanization. Increased turbidity levels associated with urban sprawl can smother periphyton causing its detachment from the rocks on which it lives.

It can be important for the clearance of harmful chemicals and reducing turbidity. Periphyton serves as an indicator of water quality [1] because: It has a naturally high number of species.

It has a fast response to changes. It is easy to sample.

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Perifiton: características, morfología, componentes, crecimiento

Periphyton in the Everglades The shell of Eustrombus gigas in its natural habitat is covered by periphyton. Periphyton is a complex mixture of algae , cyanobacteria , heterotrophic microbes , and detritus that is attached to submerged surfaces in most aquatic ecosystems. The related term Aufwuchs German "surface growth" or "overgrowth" refers to the collection of small animals and plants that adhere to open surfaces in aquatic environments, such as parts of rooted plants. Periphyton serves as an important food source for invertebrates , tadpoles , and some fish. It can also absorb contaminants , removing them from the water column and limiting their movement through the environment.

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Periphyton

A pesar de que el perifiton se encuentra recubriendo una gran variedad de sustratos, nuevas investigaciones parecen sugerir que se encuentra principalmente sobre plantas. La textura del perifiton es bastante suave, incluso calificada como babosa por algunos especialistas. Componentes Los componentes del perifiton son bastantes variados, principalmente miembros de los reinos monera y protista. Organismos del reino monera La cantidad de bacterias presentes en el perifiton es muy abundante. Citrobacter sp: grupo conformado por bacterias bacilares que tienen un metabolismo de tipo aerobio.

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