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Blue Crab Blue crabs are not only the best know crustaceans in the Chesapeake Bay, but also one of the best known animals.
Blue Crab Millions of pounds of blue crabs are harvested from the Chesapeake Bay every year.
Blue Crab Most of these crabs are caught by watermen using crab pots. Fresh dead fish are put in the pot and the crabs are trapped once they enter.
Blue Crab The blue crab is a 10-leged crustacean, related to the lobster, shrimp and crayfish.
Blue Crab Their hind legs have broad, flat like paddles at the end which makes them very good swimmers.
Blue Crab In fact, their scientific name Callinectes means beautiful swimmer in Greek.
Blue Crab Male crabs are called Jimmies. You can tell a Jimmie by the inverted T shaped apron on the underside of the crab.
Blue Crab They also have blue tips to their claws.
Blue Crab A immature female is known as a Sally. The apron is triangular.
Blue Crab A mature female is known as a Sook. The apron is broad and rounded.
Blue Crab Female blue crabs can also be identified by their red tipped claws. Females paint their nails.
Blue Crab A female blue crab can carry from 750,000 to 8 million eggs beneath her apron.
Blue Crab When eggs are visible, females are known as sponge crabs.
Blue Crab Crabs grow by sheding their hard shells. This process is called molting.
Molting or Ecdysis
Blue Crab Crabs have a very interesting lifecycle!
Crabs A Red Kayak Project By Griff Lehnert With tech assistance from Jordan Lehnert who is proud of the background pictures!
Mrs. Gridley, Grade 4Pfaff Elementary School. What Do You Think About Fiddlers? Where do they live? Do you think their habitat has salt or fresh water?
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Christopher J. and Blue C. There are five different groups of animals with vertebrates Mammals Mammals Reptiles Reptiles Fish Fish Amphibians Amphibians.
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Crayfish Test Review. A crayfish’s hard, shell-like covering is called a(n) _______. a.swimmerets b.carapace c.cephalothorax d.exoskeleton.
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Sponges Sponges are in the phylum Porifera which means pore bearer. Can you see how they got that name?
High Frequency Words List A Group 1. the of and.
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List 1. the List 1 to List 1 and List 1 he List 1.
1 Section 2.2 introduction an exploration into: Equations with Algebra Tiles Section 2.2 introduction an exploration into: Equations with Algebra Tiles.
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List 1 Sight Words the to and he a I you it.
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Frequency Words. a about after again all always.
SEA TURTLES Between 5,000 and 10,000 sea turtles enter the Chesapeake Bay each spring or summer.
Hydroids Hydroids are small colonial animals that are often confused as plants.
What do we already know ? Understand that some materials are attracted to magnets What the characteristics of magnets are That magnets can repel and.
INVERTEBRATES Are animals which do not have a skeleton Size Most are very small, some such as giant squids Body shape Most invertebrates are symmetrical.
Can you see?. I like him. When will we go? All or some.
DOLCH Sight Word Test (Say each word as it appears on the screen.)
© OUP: To be used solely in purchasers school or college 7A Cells Signs of life Building blocks of life Building living things 7A Cells.
Lets build fluency! The people By the water You and I.
Jellyfishes For those that have spent any time during the summer on the Chesapeake Bay, they have probably met the sea nettle that can be such a pain!
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