-a body of water that contains a mixture of fresh water and salt water that serves as a nursery...
TRANSCRIPT
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-A body of water that contains a mixture of fresh water and salt water that serves as a nursery ground
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Mobile Bay Estuary
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Image C
redit: Geological Survey of A
labama &
Alabam
a Aw
are Program of the
Alabam
a Gam
e & Fish D
ivision; Funding by Federal Sport Fish Restoration Program
Drainage Basin Index MapT e n n e s s e e
F l o r i d a
G e o r g i
a
M i
s s
i s s
i p
p
i
ESCATAWPA
MOBILEDELTA
CHATTAHOOCHEE
PERDIDOMOBILEBAY
BLACKWATER
YELLOW CHIPOLA
CHOCTAWHATCHEE
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Smooth Cordgrass
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Black Needle rush
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Benthic Algae
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Benthic Algae Producing Oxygen
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Hydric Soil and Detritus
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Ecological Functions ofSalt Marshes
• Nursery habitat for juvenile fishery species• Habitat for coastal birds• Habitat for adult benthic organisms (worms,
clams, oysters) and mammals (Nutria) • Habitat for permanent residents:
– Marsh Periwinkle snail– Olive Nerite snail – Fiddler Crab– Ribbed Mussel
• Traps sediments and impurities in run-off• Production of detritus• Supports a complex food web
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Nursery
habitat for
juvenile
fishery specie
s
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Habitat for coastal birds
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Oysters and mussels
Nutria
Habitat for adult
benthic organisms
and mammals
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Saltmarsh Periwinkle
Habitat for permanent residents
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Olive Nerite snail
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Fiddler Crab
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Ribbed Mussels
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The word plankton comes from the greek word planktos which means “wanderer.”
Plankton are Drifters
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PLANKTON - drifters- drifters
NEKTON - free-swimmersNEs
squid
BENTHOS - benthic animals live in or on the bottom
oysters worm crabcrab
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Mola mola can reach 8 ft. in length
Photo Credit: National Oceanic & Atmospheric Administration / Dept. of Commerce
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Mola mola washed up on Dauphin Island January, 2004
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Groupings of Plankton1) Phytoplankton - primary producers
2) Zooplankton - consumers
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Groupings of Plankton3) Holoplankton - zooplankton that spend their whole lives as plankton
4) Meroplankton - zooplankton that spend only part of their lives as plankton
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CommonPhytoplankton
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Photo Credit: Dr. Neil Sullivan, University of Southern Calif. / National Oceanic & Atmospheric Administration / Dept. of Commerce
Diatoms (Division Chrysophyta)
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Diatom Frustules
© www.micrographia.com
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Common Zooplankton
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Copepod with EggsCopepod
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Copepod with Increased Surface Area
© www.micrographia.com
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Photo Credit: OAR/National Undersea Research Program (NURP)
Ctenophore
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Krill
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Photo Credit: OAR/National Undersea Research Program (NURP)
Humpback Whales Feeding on Mostly Krill
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Some Meroplankton….. Just to name a few
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Photo Credit: M. Youngbluth; OAR/National Undersea Research Program (NURP);
Harbor Branch Oceanographic Institution
Jelly Feeding on Plankton within Watery Boundaries
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Photo Credit: OAR/National Undersea Research Program (NURP)
Collecting Larval Planktonic Fish off of California
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Primary Producers(Phytoplankton)
Primary Consumers(Zooplankton)
Secondary Consumers
Humans
Carnivores
Only about 10% of the energy is
transferred(Filter Feeders)
PlanktonAppreciation