biocenoze mora
TRANSCRIPT
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BIOCENOZE MORABIOCENOZE MORA
Damnjanović Ivana
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Životne zajednice moraŽivotne zajednice mora
U morskim ekosistemimamorskim ekosistemima razlikuju se dva tipa staništa:
- morsko dno i- slobodna voda koje naseljavaju različiti
organizmi izgrađujući životne zajednice dna i životne zajednice slobodne vode
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Životna zajednica dnaŽivotna zajednica dna
Čine je organizmi koji mogu biti pričvršćeni za podlogu ili se mogu slobodno kretati po morskom dnu
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Grupa organizama vezanih za morsko dno predstavlja bentos
(grč. benthos = dubina)
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Životna zajednica Životna zajednica slobodne vodeslobodne vode
Životnu zajednicu slobodne vode formiraju organizmi koji su sposobni za plivanje
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Članovi zajednice slobodne vode koji slobodno lebde čine plankton plankton (grč. planktos = lebdeći)
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Aktivni plivači čine nektonnekton(grč. nektos = plivajući)
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Zona stalnog udara talasa o obalu -Zona stalnog udara talasa o obalu - supralitoralsupralitoral
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Morski talasi stalno udaraju u obalu, Morski talasi stalno udaraju u obalu, otežavajući život organizmimaotežavajući život organizmima
Modrozelene alge, puževi, kao i rakovi vitičari i mokrice
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Rak vitičar Mokrica
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Zona plime i oseke - eulitoralZona plime i oseke - eulitoral
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Zona plime i osekeZona plime i oseke je stanište na kome vladaju teški uslovi za život Osnovni problem na ovim staništima je ritmično povlačenje morske vode i potpuno isušivanje obale, koja je u periodu oseke izložena jakoj Sunčevoj svetlosti i visokoj temperaturi
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PrednostiPrednosti: za vreme plime more na obalu donosi svežu vodu i hranu (plankton) pa je živi svet raznovrsniji u odnosu na supralitoral
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U zoni plimeplime i osekeoseke žive mnogobrojne mrke i zelene alge, morske sase, puževi, školjke i rakovi
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Mrka alga
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Zona morskog dna - sublitoralZona morskog dna - sublitoral
Morsko dno do dubine od oko 50 m je izuzetno povoljno mesto za život
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U ovoj zoni ima dovoljno svetlosti, toplote, kiseonika, mineralnih supstanci i hrane za život svih oranizama koji sačinjavaju biocenozu mora
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Na morskom dnu žive mnogobrojne vrste algi, mnogobrojni sunđeri, korali, morske sase, crvi, rakovi, puževi, školjke, glavonošci, bodljokošci i ribe
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Zona slobodne vodeZona slobodne vode
Organizmi koji naseljavaju zonu slobodne vode su razvili najrazličitije načine aktivnog i pasivnog plivanja U biocenozi slobodne vode nalazi se plankton, kao i veliki broj najrazličitijih vrsta meduza, glavonožaca, riba i sisara koji aktivno plivaju
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Zona dubinskih delova moraZona dubinskih delova mora
Potpuni mrak, niska temperatura, visok pritisak
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U najvećim morskim dubinama žive najneobičnija bića koja su tokom duge evolucije pronašla rešenja za opstanak u naizgled nemogućim životnim uslovima
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Životnu zajednicu u najdubljim delovima mora čine malobrojne vrste beskičmenjaka, kao što su morske sase, morski crvi, rakovi i morski krastavci, ali i najneobičnije vrste riba sa svetlećim organima
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Mola-mola
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Blob-riba
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Morska svinja
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Goblin-ajkula
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Vampirska lignja
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Viperfish
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Gulper jegulja
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Riba zmijozub