Symptom: Blue-Ringed Octopus Bite

    The blue-ringed octopus, a cephalopod, is less than 8 inches in diameter with its tentacles extended. It has blue rings and luminous tentacles. It is found in the Indo-Pacific Ocean area (Australia, New Zealand, New Guinea and Japan). The blue-ringed octopus is not an aggressive marine animal.Cephalopods, a name used to refer to all octopi, usually live in rocky ocean bottoms. The blue-ringed octopus lives in rock pools, under shells and in shallow waters making then a risk to people wading in tide pools, children, and divers alike. They are rarely seen in water deeper than 10 feet.When at rest, the octopus has dark brown to yellow bands over the body with superimposed blue patches or rings. When excited or angered, the body darkens and the blue circles or stripes glow iridescent blue.The blue-ringed octopus does not release inky fluid like other octopi are able to do.When human contact with a blue-ringed octopus occurs, it is usually accidental. Avoid handling this octopus because its sting contains tetrodotoxin, which paralyzes the victim (similar to pufferfish poisoning). The sting is often fatal.The blue-ringed octopus injects it's toxin by biting. The venom is held in salivary glands and the mouth of the octopus in on the underneath side in the middle of the body.Since the blue-ringed octopus is not an aggressive marine animal, most cases of bites are from a person picking up and handling the octopus, or stepping on it in a sandy beach area. To avoid being bitten by a blue-ring octopus, never pick up or handle this marine animal, and when entering the ocean, shuffle your feet as you enter to avoid stepping on the octopus.

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    Read What Your Physician is Reading on Medscape Octopus envenomation »Octopuses, which are organisms of the class Cephalopoda in the phylum Mollusca, are generally harmless and unlikely to be aggressive unless provoked. Read More on Medscape Reference »
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    Read What Your Physician is Reading on Medscape Octopus envenomation »Octopuses, which are organisms of the class Cephalopoda in the phylum Mollusca, are generally harmless and unlikely to be aggressive unless provoked. Read More on Medscape Reference »
    Featured Topics
    • MS Slideshow
    • Teeth Wrecking Habits
    • Childhood ADHD Facts
    • Pictures of Psoriasis
    • Adult ADHD Slideshow
    • RA in Pictures
    Topics Related to Wilderness: Blue-Ringed Octopus Bite
    • First Aid
    • First Aid Kits
    • Pressure Immobilization
    • Scuba Diving and Snorkeling Tips
    • Scuba Diving Emergency Contacts
    • Scuba Diving: Marine Bite
    First Aid & Injuries Topics
    • Nosebleed
    • Ingrown Toenails
    • Ankle Sprain
    • Leg Pain
    Medical Dictionary
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