ecosisteme naturale acvatice romania
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BALTILE
Sunt ecosisteme acvatice asemanatoare lacurilorin multe privinte .
Au caracteristici similare de biotop si biocenoza .
Se formeaza de obicei in zonele de lunca inundabila , in locuri in care stagneaza apa .
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Balta Parc National Muntii Macinului
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Mlastinile
Sunt ecosisteme acvatice intermediare intre cele terestre si cele acvatice .
Ele nu au scurgere , apa provenind din precipitatii , din inundatii sau panza freatica .
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Biotopul
Apa sub forma de laculete si raulete care le alimenteaza
permanent .Culoarea si temperatura apei variaza in functie de zona si anotimp.
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BIOCENOZA
barzabroasca
salcia
triton plop
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Apele curgatoare
Ecosisteme acvatice reprezentate de
izvoare , paraie , rauri , iar in zona de ses se gasesc ecosisteme acvatice ale raurilor mari si al Deltei Dunarii .
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BIOTOPUL
Grosimea stratului de apa ;
Viteza de curgere a apei depinde de inclinarea pantei ;
Transparenta apei ;
Temperatura apei creste de la izvor spre cursul inferior ;
Oxigenarea apelor .
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BIOCENOZA
Formata din specii pelagice si bentonice .
La izvor este reprezentata de alge albastre si verzi , protozoare , lipitori , viermi , larve de insecte , crustacee.
In zona paraielor gasim muschi care acopera tarmurile pietroase , matasea broastei
Animale : viermi , scoici , insecte acvatice , pesti .
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lipanpastrav
mreanamelc
Lipitoare
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DELTA DUNARII
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Delta Dunarii = complex de ecosisteme , format din balti , lacuri , stufarisuri , mlastini paduri de zavoi , zone inundabile .
pelicaniegrete
tiganus
nuferi Nufar galben rizac
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Lebede Broasca testoasa
hermina
enot vulpe iepure
lup
Mistret