Dangerous Marine Organisms

Objectives:1. Identify dangerous marine organisms.2. Recognize types of wounds.3. Discuss treatment for injury.4. Describe the most common water activity hazards.

Pre-SurveyPre-Survey

List all the things that you think could cause harm to you in the ocean.

What do you think is What do you think is the most dangerous the most dangerous

organism?organism?

Ocean Safety TipsOcean Safety Tips

NEVER swim alone. Wear sunscreen, hats, and sunglasses. Know your surroundings and know how to call

911. Know how to swim and never swim alone. Don't stick your hands or feet into any holes. Swim perpendicular to rip currents. Don't use drugs or alcohol. When in doubt, don't go out …. Or touch!

1. Coral 1. Coral

– sharp sharp edges edges cause cutscause cuts

–stinging stinging tentaclestentacles

2. Sea Anemone 2. Sea Anemone

3. Cone Snail3. Cone Snail

– – poisonous dart-like poisonous dart-like mechanism near tipmechanism near tip

4. Barracuda4. Barracuda

- sharp teeth- sharp teeth

5. Moray Eel5. Moray Eel

- razor sharp - razor sharp teethteeth

6. Needle Fish6. Needle Fish

• long, pointed long, pointed jaw and sharp jaw and sharp teethteeth

7. Portuguese Man-of-War7. Portuguese Man-of-War

– – long, blue long, blue thread-like thread-like stinging tentaclesstinging tentacles

8. Box Jellyfish8. Box Jellyfish

– – stinging tentaclesstinging tentacles

9. Scorpion Fish9. Scorpion Fish

• poisonous spines on finspoisonous spines on fins

11. Sea Urchin (Wana or Ina)11. Sea Urchin (Wana or Ina)

– – long, brittle, sharp spineslong, brittle, sharp spines

12. Surgeonfish12. Surgeonfish

– – spine and spine and knife-like knife-like razors on tailrazors on tail

13. 13. Squid or Octopus

– sharp beak

14. Tube Snail14. Tube Snail

– – razor sharp razor sharp openingopening

15. Fire/bristle worms15. Fire/bristle worms

– – bad stingbad sting

16. Crown of Thorns16. Crown of Thorns

Sharp and Toxic spines

Common Wounds and Common Wounds and TreatmentTreatment

Sunburn – aloe

Stings (anemone, man-o-war, jellyfish) – rinse wound with saltwater and apply ice; use vinegar and/or meat tenderizer

Stings (rays, scorpion fish, crown of thorns)- apply heat

Cuts and abrasions – clean wound, apply pressure, bandage

Practice QuestionPractice Question

You should use vinegar when…a. Stung by a jellyfishb. Stung by a rayc. Stung by a portuguese-man-

o-ward. All of the abovee. Two of the above