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