Shark general oj
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Rafael Manrique INTRODUCTION TO SHARKS Whale Shark and Oceanic Research Centre
Transcript of Shark general oj
Rafael Manrique
INTRODUCTION TO SHARKS
Whale Shark and Oceanic Research Centre
Table of Contents1. What are Sharks?2. Evolution3. Anatomy4. Shark Senses5. Repoduction6. How Sharks are Percieved7. Conservation8. Sharks in Honduras9. What you can do
What are Sharks ?
Group of fish
Cartilage skeleton 5-7 gillsSelachiformaPectoral fins not
fused to the head
Shark Evolution400 million years ago in the Devonic eraHard to study fossils
Shark Evolution
Cartilage skeleton JawTeethFins (ceratotrichia)Dermal denticlesTailsLivers
Shark Anatomy
Shark Senses Sight
Smell
Hearing
Electro perception
Laeral lines
Shark ReproductionInternal fertilization Oviviparous OviparousViviparous
How sharks are percieved In Hawaiian culture
In Western culture
In Eastern culture
Conservation 100 million sharks a year die
South Africa first country to legally protect sharks
USA and EU leading the charge against shark finning
CITES
Sharks in HondurasShark Finning
Shark Chumming
Sharks in Utila
What can you do?
Help research
Don’t shark products
Educate people about sharks
