marine biomes
DESCRIPTION
Marine Biomes. Jared Benton-Smith AP Envi Sci 11/03/10. http://world_map_road.tripod.com/world_map_wallpaper2.jpg. Diurnal tide Semidiunal tide Mixed. Tides. http://www.physicalgeography.net/fundamentals/images/tide_type_map.jpg. Large tidal range at spring tides Small at neap tides. - PowerPoint PPT PresentationTRANSCRIPT
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Marine BiomesJared Benton-Smith
AP Envi Sci11/03/10
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http://world_map_road.tripod.com/world_map_wallpaper2.jpg
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Tides
Diurnal tide Semidiunal tide Mixed
http://www.physicalgeography.net/fundamentals/images/tide_type_map.jpg
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Spring/Neap Tides
Large tidal range at spring tides
Small at neap tides
http://csep10.phys.utk.edu/astr161/lect/time/spring-neap.jpg
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The Coriolis Effect
Caused by Earth's rotation
Deflects winds to the right in the Northern Hemisphere
To the left in the Southern Hemisphere http://www.williamsclass.com/EighthScienceWork/Atmosphere/coriolis.gif
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Winds
Surface currents driven by winds, move at 45º from wind currents
http://pulse.pharmacy.arizona.edu/9th_grade/from_global/earth_science/images/wind_patterns.gif
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Ekman Spiral
Compounding Coriolis effect
Ekman layer 90º to wind current
Produces circular surface currents that help regulate climate through heat transportation
http://atoc.colorado.edu/~cassano/atoc4750/Daily_images/20080129/ocean_ekman_spiral.jpg
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Currentshttp://cimss.ssec.wisc.edu/sage/oceanography/lesson3/images/ocean_currents2.jpg
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The Great Ocean Conveyorhttp://www.crd.bc.ca/watersheds/protection/geology-processes/images/clip_image002_000.jpg
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Soil Conditions
Sea floor made of oceanic crust (basalt)
Crust is dense, keeping it below sea level
Sediment composition related to degree of water motion
Fine sediments stay suspended w/ little movement, thus settle in calmer areas
Detritus in sediment
http://www.pubinfo.vcu.edu/masc/photos-2003-04/sediment_usgs.jpg
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Marine Ecosystemshttp://library.thinkquest.org/04oct/01590/intro/ocean.jpg
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Coastal Zone
Nutrient rich Warm Shallow 10% of the world's ocean
area 90% of marine species High NPP per unit area Large amounts of sunlight Plant nutrients flow from land
and are distributed by currents and tidal flow
http://www.destination360.com/north-america/us/california/images/s/northern-coast.jpg
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Intertidal Zones-Rocky Shores
Uplifted coasts, geologically young coasts, or eroded coasts
Tides affect affect biological zones, vertical zonation
Currents affect temperature causing varied biodiversity between areas
Organisms' niches change depending on daily and seasonal environmental changes
http://www.noao.edu/education/gsmtf/img/currents.gif
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http://www.seafriends.org.nz/books/eco03.gifhttp://hawaii.gov/dbedt/czm/initiative/wec/html/sea/marine/images/yokohama5.jpg
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Rocky Intertidal Organisms
Seaweeds, diatoms, seagrasses
Detritus
Grazers Scavengers Filter Feeders
CarnivoresSea stars, snails, fishes, crabs, flatworms, birds
Limpets, snails, chitons, sea urchins
Crabs, amphipods, isopods
Mussels, barnacles
Drift seaweed from other communities
To other communities
Plankton
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Intertidal Zones-Sandy Shores
Seagrass most common primary producer
Houses organisms that bury in the sediment/sand
Grain size affects oxygen and organic matter availability, larger=less
http://www.bergoiata.org/fe/bestw2/Sandy%20Beach.jpg
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Sandy Intertidal Organisms
Plankton Bottom diatoms
Detritus
Suspension feeders Deposit feeders
Carnivores
Clams, sand crabs, polychaetes
Polychaetes, clams
Fishes, birds, moon snails
From other communities
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Coral Reefs
Water avg. temp >20ºC Rarely deeper than 50m Most reefs are sensitive
to fresh water, fine sediments and pollution
3 types Fringing Barrier Atolls
http://images.fanpop.com/images/image_uploads/Coral-Reefs-sea-life-114559_1280_853.jpg
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http://www.coralreefinfo.com/images/coralreef_map_large.jpg
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Coral Reefs cont.
Nutrients cycled rapidly
Nitrogen is fixed Very productive Sessile organisms
compete for spacehttp://www.solcomhouse.com/images/coral_reef_florida.jpg
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Coral Reef OrganismsPredators
Fishes, squids, snails
GrazersFishes, urchins,snails, chitons
Detritus feeders
Sea cucumbers,worms,
amphipods,soft corals
Coral and coral
mucus feeders
Fishes, sea stars,crabs
Plankton feeders
Fishes, sea fans,
feather stars
Detritus
Seaweeds,coralline algae,photosynthetic
bacteria
Corals/Zooxanthellae
PlanktonFrom other communities
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Open Ocean-Euphotic Zone
Low nutrient levels High DO Floating
phytoplankton Large, fast swimming
predatory fish
http://blog.city-discovery.com/wp-content/uploads/Great_white_shark_south_africa-hermanusbackpackers.jpg
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Open Ocean-Bathyal Zone
Low levels of sun Zooplankton Smaller fish Some crustaceans Some anthropods
http://www.lifesci.ucsb.edu/~biolum/organism/pictures/histio.jpg
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Open Ocean-Abyssal Zone
Dark and cold Low DO Deposit feeders
and filter feeders
Sources of nutrients: vents and marine snow
http://www.eurekalert.org/multimedia/pub/web/3546_web.jpg
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Flora/Fauna Adaptations-Seaweeds (Algae)
Thick, leathery bodies to withstand exposure to air
Pneumatocysts to float near the surface
Large blades Holdfasts attach
seaweed to hard bottom
http://www.oceanlight.com/lr/full/3bf8604db3ab53f8dd991e6d707b3509.jpg
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Flora/Fauna Adaptations-Salt-Marsh Plants/Mangroves
Mangrove trees thick leaves to
prevent water loss
Seeds germinate while attached to the parent tree
Salt glands excrete excess salt
http://envis.maharashtra.gov.in/envis_data/files/Mcopingwithsalt.jpg
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Human Impacts-Coral Reefs
• Excess sediment smothers coral reefs
• Use of explosives
• Collection
• Anchors
• Divers
• Ocean acidification
• 20% to damaged too recover
http://soundwaves.usgs.gov/2009/11/CoralF1TULG.jpg
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Mangrove Destruction
• In the Philippines, 1,000 square miles of mangroves, 67 percent of the country's total, were destroyed between 1920 and 1980
• For shrimpinghttp://coastalcare.org/wp-content/images/issues/additional-issues/miles-of-mangrove-trees.jpg
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http://ian.umces.edu/imagelibrary/albums/userpics/10001/normal_iil-ian-aj-0053.png
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Human Impacts
• 80% people live near coasts
• Eutrophication
• Sewage discharge-spreads disease, sludge
• Sludge deposited modifies/destroys bottom communities
• Oil spills
• Thermal pollution
• Heavy metal accumulation
• Pesticides
• PCBs-toxic
http://www.marcgunther.com/wp-content/uploads/10739728-bp-logo.jpg
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Bibliography
"Mangrove Destruction." Endangered Species Handbook. Animal Welfare Institute, 1983. Web. 04 Nov. 2010. <http://www.endangeredspecieshandbook.org/aquatic_mangrove.php>.
Castro, Peter, and Michael E. Huber. Marine Biology. 7th ed. Boston (Mass.): McGraw-Hill Higher Education, 2008. Print.
Miller, G. Tyler, and Scott Spoolman. Living in the Environment: Principles, Connections, and Solutions. 15th ed. Belmont, CA: Thomson Brooks/Cole, 2007. Print.