Plant Aquaculture - Overview of Marine & Freshwater Plants
Transcript of Plant Aquaculture - Overview of Marine & Freshwater Plants
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Overview of Marine & Freshwater PlantsM. Dennis Hanisak
Aquaculture Immersion Excursion 2009 Teacher Workshop
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Outline
1. What Are Vascular Plants?
2. What Are Algae?
3. Ecological Importance of Freshwater & Marine Marine Plants
4. Economic Importance of Freshwater & Marine Plants
5. Overview of Florida’s Freshwater Plants
6. Overview of Florida’s Seaweeds
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• Vascular tissues– Xylem - conducts water & dissolved minerals– Phloem - conducts food (typically sugars)
Vascular Plants
• High degree of organization (organs)– Leaf, stem, root
Xylem
Phloem
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Flowering Plants
• A vascular plant with reproductive tissue surrounded by sterile tissue
• Reproduction is by flowers and seeds
Kingdom Plantae Phylum Angiospermatophyta
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Ecological Importance of Freshwater& Marine Plants
• Primary producers
• Food
• Detritus food web
• Habitat
• Nutrient cycles
• Sediment production
• Sediment stability
• Reef formation and maintenance
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• Food
• Fodder
• Medicinal
• Fertilizer
• Chemicals (potash, soda, iodine)
• Phycocolloids (agar, carrageenan, alginate)
• Fuel
• Fisheries
• Recreation
Economic Importance of Freshwater& Marine Plants
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Algae
Algae are:
• Photosynthetic
• Non-vascular plants
• Contain chlorophyll a • Have simple reproductive structures (=no sterile
protective cells around the zygote)
• Little tissue differentiation (=no organs).
alga, algae (not ALGAES!!)
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Other Terms
• Microalgae
• Macroalgae
• Seaweeds
• Macrophytes
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Overview of Florida’s Freshwater Plants
• Submersed Plants - grow entirely or almost entirely underwater
• Emergent Plants - grow out of the water
• Floating and floating-leaved plants - have leaves that float on the water's surface- either rooted to the bottom or free-floating
• Marsh Plants - Aquatic grasses, sedges, and rushes
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Native Submersed Freshwater Plants
Vallisneria americana(Tape grass)
Utricularia spp. (Bladderwort)
Ceratophyllum demersusm (Coontail)
http://aquat1.ifas.ufl.edu/
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Native Emersed Freshwater Plants
Typha spp.(Cat Tail)
Sagittaria spp. (Arrowheads)
http://aquat1.ifas.ufl.edu/
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Native Floating and Floating-leaved Plants
Lemna valdiviana(Small Duckweed)
Nympaea odorata(Fragrant Water Lilly)http://aquat1.ifas.ufl.edu/
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Native Grasses, Sedges, and Rushes
http://aquat1.ifas.ufl.edu/
Cladium jamaicense(Saw-Grass)*
*Saw-Grass is a Sedge!
Panicum hemitomon(Maiden Cane)
Juncus effusus (Soft Rush)
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Angiosperms in Florida’s Marine Environment
• Tidal Marsh Plants
Spartina alterniflora (smooth cord grass)
Halodule wrightii (shoal grass)
• Seagrasses
Rhizophora mangle(red mangrove)
• Mangroves
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Some Major Marine Algal Groups
• Microalgae- Cyanobacteria/Blue-Green Algae- Diatoms- Dinoflagellates
• Macroalgae/Seaweeds- Green Algae- Brown Algae- Red Algae
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Cyanobacteria/Blue-Green Algae
Anacystis Lyngbya
Kingdom Monera (Prokaryota), Phylum Cyanophyta
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Diatoms
Centric PennateTomas 1997
Kingdom Protista, Phylum Bacillariophyta
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Dinoflagellates
Karenia brevis
Tomas 1997
Kingdom Protista, Phylum Pyrrhophyta
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Green Algae
Ulva lactuca
Caulerpa prolifera
Kingdom Protista, Phylum Chlorophyta
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Brown Algae
Dictyota dichotomaSargassum filipendula
Kingdom Protista, Phylum Phaeophyta
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Red Algae
Gracilaria tikvahiae
Hypnea musciformis
Kingdom Protista, Phylum Rhodophyta
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References/Additional ReadingDawes, C.J. 1998. Marine Botany. Second Edition. John Wiley & Sons, New York.
480 pp.Dawes, C.J. and A.C. Mathieson. 2008. Seaweeds of Florida. University of
Florida Press, Gainesville, FL, 656 pp. Hoyer, M.V., D.E. Canfield, Jr., C.A. Horsburgh, and K. Brown. 1996. Florida
Freshwater Plants: Handbook of Common Aquatic Plants in Florida Lakes. 264 pp.
Littler, D.S. and M.M. Littler. 2000. Caribbean Reef Plants: An Identification Guide to the Reef Plants of the Caribbean, Bahamas, Florida and Gulf of Mexico. Offshore Graphics, Inc., Washington, D.C. 542 pp.
Littler, D.S., M.M. Littler, and M.D. Hanisak. 2008. Submersed Plants of the Indian River Lagoon. OffShore Graphics, Inc. 286 pages.
Tomas, C.R. 1997. Identifying Marine Phytoplankton, Academic Press, New York. 858 pp.
http://aquat1.ifas.ufl.edu/http://www.seaweed.ie/
http://www.algaebase.org
Highly Recommended Websites