rumput laut
TRANSCRIPT
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RUMPUT LAUT
Nurul ‘Aini Hilmi
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Rumput laut (makroalga)
Tumbuhan tingkat rendah termasuk dalam kelompok Thallophyta atau bertalus.
• Tidak memiliki akar batang dan daun sejati
• fotoautotrof
• berklorofil.
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Morfologi
Bladder
Blade
Holdfast
Stipe
Thallus
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Klasifikasi• Chlorophyta - pigmen yang
mendominasi berwarna hijau
e.G Ulva lactuca
• Rhodophyta - pigmen yang mendominasi berwarna merah
e.G Eucheuma cottoni
• Phaeophyta - pigmen yang mendominasi berwarna coklat
e.G Sargassum sp.
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Chlorophyta
Halimeda opuntia
Caulerpa sp.
Ulva fasciata
Chaetomorpha coliformis
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Rhodophyta
Gracilaria verrucosa
Eucheuma spinosum
Dichotomaria marginata
Delesseria sanguinea
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Phaeophyta
Macrocystis pyrifera
Padina australis
Laminaria digitata
Dictyota sp.
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Habitat • Umumnya di daerah intertidal hingga subtidal
• Salinitas optimum 28-33ppm
• Melekat pada batu, batu berpasir, tanah berpasir, kayu, cangkang moluska, dan epifit pada tumbuhan lain atau makroalga jenis yang lain.
• Minimum kedalaman saat surut terendah 5- 80 cm didareah dangkal.
• ph 7-8
• Suhu 25-31 derajat Celcius
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Potensi Pemanfaatan Makroalga
• Bidang farmakologi : antioksidan, anti bakteri, anti fungi, anti tumor dll
• Bidang industri makanan : Agar-agar (jelly), pengental makanan, es krim, nori dll
• Dimakan langsung sebagai lalap, pecel, manisan dll
• Pakan ikan
• Penyerap polutan
• Biofuel
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