Your SlideShare is downloading. ×
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Crustacean powerpoint
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Crustacean powerpoint

6,424

Published on

Published in: Technology, Health & Medicine
0 Comments
4 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
6,424
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
242
Comments
0
Likes
4
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. CRUSTACEA
  • 2. • Phylum Arthopoda• Subphylum Crustacea• 30,000 species• Mostly marine
  • 3. Examples of CrustaceansCrabs
  • 4. Examples of CrustaceansShrimp
  • 5. Examples of CrustaceansLobster
  • 6. Examples of CrustaceansBarnacles
  • 7. Examples of CrustaceansCopepods – 70% of all Crustaceans
  • 8. Examples of CrustaceansKrill – greatest biomass of any species on earth
  • 9. Examples of CrustaceansIsopods
  • 10. Examples of CrustaceansAmphipods
  • 11. ANATOMY• Anatomy varies depending on type of crustacean• Body divided into two major parts: Cephalothorax – head and main body cavity Abdomen – muscular, segmented dorsal part of body• Usually 16 – 20 body segments• Carapace – shell covering cephalothorax
  • 12. cephalo thorax ab do m encarapace
  • 13. ANATOMY• Many specialized, jointed appendages: – Gills – usually underneath for breathing – Walking legs - pereopods – Swimming legs - pleopods – Feeding appendages • maxillipeds and mandibles - mouthparts • chela - claws – Sensing - antennae – Defense – Tail – telson and uropods
  • 14. antennae eye shrimp anatomy telsonchela uropods gills pleopods pereopods
  • 15. crab anatomy – dorsal view chela eye antenna carapace walking legsswimming legs abdomen
  • 16. mandibles eyechela crab anatomy – ventral view abdomen
  • 17. Crustacean Feeding• Methods vary:• Predators and scavengers – crabs and lobsters• Filter feeders – barnacles• Parasites – isopods (fish lice), whales barnacles
  • 18. Crustacean Reproduction• Separate sexes• Males release sperm packetusing modified appendages• Females mate during molting –hold sperm packet untilfertilization• Females carry fertilized eggsunder abdomen until hatching
  • 19. Crustacean Life Cycle• Meroplanktonic larvae
  • 20. Other Facts• Largest – king crab – legspan of 12 feet• Heaviest – 48 pound lobster

×