Zoniranje morskih ekosistema
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Transcript of Zoniranje morskih ekosistema
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ZONE U MORU
• ŽIVOTNE ZONE U MORU SU: ZONA MORSKOG DNA (BENTOS) I ZONA SLOBODNE VODE (PELAGIJAL)
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BENTOS
• ŽIVOTNA ZAJEDNICA NA DNU VODENIH EKOSISTEMA• NAJVIŠE IMA BODLJOKOŽACA, MEKUŠACA, SUNĐERA I CRVA
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BENTOSKI ORGANIZMI ŽIVE U TRI ZONEMORSKOG DNA: OBALSKOJ, DUBINSKOJ I
NAJDUBLJOJ ZONI
1. OBALSKA ZONA MORSKOG DNA (LITORAL) OBUHVATA MORSKO DNO DO DUBINE OD OKO 200 METARA
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OBALSKA ZONA MORSKOG DNA(LITORAL)
OBALSKA ZONA OBUHVATA TRI PODRUČJA:
A) OBALU U UŽEM SMISLU,
B) PRIOBALSKO PODRUČJE
C) PODOBALSKO PODRUČJE
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OBALA U UŽEM SMISLU (SUPRALITORAL)
• GORNJA GRANICA OBALE U UŽEM SMISLU (SUPRALITORALA) JE PODRUČJE DO KOJEG MOGU DOSPJETI KAPLJICE MORSKE VODE
• OBALA U UŽEM SMISLU (SUPRALITORAL) JE DIO KOPNA UZ MORE.
• SUPRALITORAL JE IZLOŽEN PRSKANJU KAPLJICA
MORSKE VODE.
• DONJA GRANICA OBALE U UŽEM SMISLU JE NA GORNJOJ GRANICI
UDARANJA TALASA.
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OBALA U UŽEM SMISLU (SUPRALITORAL)
• DUŽ CIJELE JADRANSKE OBALE NA STJENOVITOJ OBALI RAZVIJENA SU NASELJA MODROZELENIH I ZELENIH ALGA, KOJE DAJU TOM DIJELU OBALE KARAKTERISTIČNU TAMNU BOJU.
• KONFIGURACIJA OBALE, UTIČE NA VISINU DO KOJE SE RASPROSTIRE SUPRALITORAL, TAKO DA TO VARIRA OD POLA DO DESET METARA.
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PRIOBALSKO PODRUČJE – PODRUČJE PLIME I OSEKE (MEDIOLITORAL)
• PRIOBALSKO PODRUČJE (MEDIOLITORAL) JE DIO KOPNA I MORA IZLOŽEN DJELOVANJU PLIME I OSEKE
• U OVOM PODRUČJU ŽIVE ORGANIZMI KOJI SU PRILAGOĐENI VELIKIM OSCILACIJAMA VLAŽNOSTI TEMPERATURE, SALINITETA I UDARANJU TALASA.
• OVO PODRUČJE JE POD DEJSTVOM TALASA I PERIODIČNO PLAVLJEN
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PRIOBALSKO PODRUČJE (PODRUČJE PLIME I OSEKE)
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PRIOBALSKO PODRUČJE – PODRUČJE PLIME I OSEKE (MEDIOLITORAL)
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PRIOBALSKO PODRUČJE – PODRUČJE PLIME I OSEKE (MEDIOLITORAL)
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PODOBALSKO PODRUČJE (SUBLITORAL) JE MORSKO DNO STALNO POD VODOM, DO 200
METARA DUBINE
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DUBINSKA ZONA (BATIJAL)
DUBINSKA ZONA (BATIJAL) MORSKOG DNA OBUHVATA DUBINE OD 200 DO 3000 METARA DUBINE
• DNO JE POKRIVENO MULJEM.
• TU ŽIVE SUNĐERI, BODLJOKOŠCI
• OBUHVATA KONTINENTALNE PADINE
• NEMA SVJETLOSTI PA TAKO NI BILJAKA
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NAJDUBLJA ZONA –ABISAL
NAJDUBLJA ZONA –ABISAL PROSTIRE SE NA DUBINI OD 3.000 DO 11.000 METARA I OBUHVATA PROSTOR OKEANSKE LOŽE I OKEANSKIH ROVOVA
• NAJVEĆA DUBINA IZMJERENA JE U MARIJANSKOM ROVU U TIHOM OKEANU 11.035 METARA
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RIBE VELIKIH DUBINA
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Riba pecač
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Riba pecač
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Riba grudva
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Zmijozuba
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Morski puž golać flamingov jezik
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Goblin ajkula
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Bočno spljoštena riba
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Džinovski morski krastavac
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SPUŠTANJE PODMORNICE “TRST”, 18. NOVEMBRA 1959. U NAJDUBLJI ROV-MARIJANSKU BRAZDU
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DA PONOVIMO...
• PITANJA:
1. NAVEDI DVIJE OSNOVNE ŽIVOTNE ZONE U MORU!
2. DO KOJE DUBINE SE PROSTIRE OBALSKA ZONA?
• ODGOVORI:
1. ZONA MORSKOG DNA I ZONA SLOBODNE VODE.
2. DO 200 METARA DUBINE.
• PITANJA
1. U KOJOJ ZONI ŽIVE RIBE SA SVJETLEĆIM ORGANIMA?
2. U KOJIM ZONAMA OKEANA NEMA BILJAKA?
• ODGOVORI• 1. U ABISALU, NADUBLJOJ
ZONI OKEANA.• 2. U DUBINSKOJ I
NAJDUBLJOJ ZONI.