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Chesepeake Bay watershed #2
Hines
43
Science
7th Grade
10/07/2013

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Cards

Term
What does SAV stand for?
Definition
Submerge Aquatic Vegetation
Term
How are SAV'S important to the Chesepeake Bay?
Definition
they provide food for animals, and provide habitats for aquatic orgasims
Term
Why are SAV disappering?
Definition
1. sediment (erosion) clouds water no light
2. too much algae (from fertilizer) cloudy water
3. toxic chemicals (acid rain, Roundup) kill them
Term
Blue crabs begin their lives as tiny larvae which bear little resemblance to the creature we are fimiliar with at the dinner table
Definition
Term
females crabs are called sooks
Definition
Term
males are called jimmies
Definition
Term
crabs molt to get rid of thier shell
Definition
Term
when crab eggs hatch small larva called zoea are realeased
Definition
Term
they eventually grow into megalops
Definition
Term
crabs live for three years
Definition
Term
they have ten legs
Definition
Term
the exoskeleton has pointy ends which provides protection from predators
Definition
Term
It is estimated that three out of every four legal sized crabs in the Chesepeake Bay are caught and eaten each year
Definition
Term
juvenille oysters are called spat
Definition
Term
once oysters are three inched long they can be caught and eaten
Definition
Term
oysters have the ability to change sex
Definition
Term
oysters eat by sucking water into their shells and filtering small plants
Definition
Term
so abundant that they filtered the entire chesepeake bay
Definition
Term
there are only 1% of the historic population remaning
Definition
Term
sevreal factors have led to the oysters demise. One is the two deseases called MSX and "dermo"
Definition
Term
Plankton
Definition
small organisms that pasivly drift with the current
Term
phytoplankton
Definition
plant like plankton
Term
zooplankton
Definition
animal plankton
Term
copepods
Definition
common type of zooplankton
Term
foodweb
Definition
when one thing eats something else and it countinues
Term
What is a moratorium?
Definition
A place where you cant hunt fish
Term
What do Rockfish eat?
Definition
small fish, soft crabs, eels
Term
WHat is the other name for a rockfish?
Definition
Striped Bass
Term
Where do they spend most of their lives
Definition
in saltwater in the ocean
Term
Where do juvinille fish live?
Definition
shallow marshes and grass beds
Term
what is the name of camaflouge they use?
Definition
counter shading
Term
How rockfish recovered
Definition
1. 5 year moratorium
2. restored spawning grounds
Term
How do menhaden eat?
Definition
they filter feed
Term
What do they eat?
Definition
phytoplankton
Term
What are their predators?
Definition
blue fish, striped bass, and osprey
Term
What do humans use them for?
Definition
food, fish oil pills, and fertilizer.
Term
What is Omega Protein and what do they do?
Definition
It is a company, and they use menhaden for different products.
Term
feeds on clams, mussels, fish, and mollusks
Definition
Term
females are bigger than males
Definition
Term
can tell age by rings on shell
Definition
Term
temperature affects gender of offspring
Definition
Term
only turtle to live in brackish water
Definition
Term
terrapin pop. decimated because made into soup.
Definition
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