Dangerous Marine Life

7/28/2019 Dangerous Marine Life

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Biota laut apa yang berbahaya?

Biota yang paling lucu?

Terkadang bentuknya menakutkan akan tetapitidak berbahaya?

Bentuknya lucu tapi berbahaya?

Questions?


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Dangerous marine life

Oktiyas Muzaky Luthfi


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Almost all aquatic life injuries are caused by

defensive behavior on the part of the animal.

As I tell new divers, don't try to pull eels out

of their holes, poke the lobsters, or attempt

to ride the stingrays, and you should be just

fine.

DON'T BOTHER THE FISH AND THEY WON'T

BOTHER YOU.

Notice and tips!


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Habitat : commonly found sheltering underledges or inside holes in the reef.

Ancaman: New divers may find eels frighteningbecause they have visible sharp teeth andbecause they hang around with their mouthsopen as if they are about to bite.

Facts: This behavior, which may look like an eel isthreatening divers, is really just a way for the eel

to pump water across its gills to breathe. Tips aman: Give moray eels space and they pose

no threat.

1. Moray Eels - Not Dangerous


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Reefbuilder.com and coralbyst.com


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Habitat : almost in shallow to deep waters (1-30m)

Ancaman:

A coral head is composed of a hard (sometimes sharp) limestone support

covered by thousands of tiny coral animals. A diver who contacts the

reef may be cut by the sharp limestone or stung by coral polyps. Depending upon the species of coral, these injuries range from minor

scratches to stinging welts.

Not only is contact with coral dangerous to divers, contact with divers is

dangerous to coral.

Even the gentlest touch of a diver's fin or hand may kill delicate coral

polyps. A diver who touches the reef does more damage to the coral

than the coral does to him.

Tips: Of course, a diver can avoid coral injuries completely by maintaining

good buoyancy and awareness in order to stay clear of the reef.

2. Coral - Dangerous If Touched


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Habitat : Common stingray behavior includes the stingrayburying itself in the sand (camouflaging itself) and beatingthe sand with its wings and nose (the stingray is looking forfood).

Ancaman : A stingray's sharply pointed stinger may frightennew divers.

Facts : Stingrays will occasionally swim calmly beneathdivers. This is not threatening behavior, but a a sign that thestingray is relaxed an unafraid.

Tips: A stingray will only sting a diver as a last, desperatedefense. Never trap, grab, or press on a stingray's back.Allow stingrays space and the opportunity to escape andthey pose no threat.

3. Stingrays - Not Dangerous


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http://photography.nationalgeographic.com


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Habitat : Swim entire waters and flowing with current

Ancaman: The danger with jellyfish is that they frequently have long

transparent tentacles that are difficult to spot. A diver may

accidentally swim into a jellyfish's tentacles if he does not see them.

Facts: jellyfish do not attack divers. Tips :

Before diving in a new location, a diver should talk to local divers

Most jellyfish stings can be avoided by wearing a full wetsuit or dive skin

to prevent inadvertent contact with the tentacles.

Vinegar as immediate first aide for a jellyfish sting. Vinegar has twoprimary benefits - to minimize pain and discomfort, and to stop the

delivery of jellyfish venom.

4. Jellyfish - Dangerous But Rare


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Logos.co


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Habitat : bottom of substrate or hidden in coral

Ancaman: Lobsters and crabs have powerful claws forcrushing prey (such as clams) and for defense.

Fact : Their claws are not for pinching divers. As diversare not typical lobster/crab prey, a diver need not fearthese crustaceans' claws unless he is threatening theanimal.

Tips : A diver who does not attempt to extract lobstersor crabs from the reef, but simply enjoys observingthese colorful creatures from a respectful distance willnot be pinched.

5. Lobsters and Crabs - Not Dangerous


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Habitat : coloumn of sea water until estuary

Ancaman : Sharks are probably the most misunderstoodcreatures in the ocean. Sharks are aggressive predators, butscuba divers are not their natural prey.

Facts: Most sharks appear shyly curious if they encounter diversunderwater. Something about a diver's noisy bubbles and bug-eyed mask must scare them off. The few shark-related divinginjuries I know about occurred when scuba divers were feedingsharks.

Tips : When fed (especially by hand) sharks sometimes become

frenzied and may mistakenly nibble a diver. For this reason,divers should never feed sharks or other marine life withoutthe supervision of a knowledgable professional.

Is Scuba Diving With Sharks Dangerous?

6. Sharks - Not Dangerous Unless You Feed Them


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reefguide.org

http://carlchapman.photoshelter.com


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Habitat: In coral

Ancaman : With all the ugly, toothy, and spiny fish inthe sea, the last fish a diver may be expecting to attack

is the damselfish. Facts: Damselfish are relatively small (about 3-5 inches

in general) and sometimes very pretty. Damselfish arededicated gardeners, tending a small algal patch whichprovides their food. If a diver violates the damselfish's

territory, the angry little fish will aggressively nip at thediver.

Tips: Perhaps the most aggressive of the damselfish isthe Sergeant Major, becomes very defensive whentending eggs.

7. Damselfish - Aggressive, But Not Dangerous


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Habitat : bottom of sediment

Ancaman : Sea urchin spines are sharp and brittle, and can easily

penetrate a wetsuit and break off under a diver's skin.

In addition, certain species of sea urchins defendthemselves by injecting a painful venom into creaturesthat touch or attack them.

Facts : Like coral, sea urchins do not pose a dangerto conscientious, controlled divers.

Tips: As long as a diver is careful to touch nothingwhile underwater, he can be certain to avoid a seaurchin sting.

8. Sea Urchins - Dangerous to Touch


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richard-seaman.com


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Habitat : Surrounding coral reef

Ancaman: These fish have been known to seriously injuredivers, and are not to be taken lightly (Titan Triggerfish).

Facts : Some species of triggerfish are friendly, and othersdefend their territory against intruders. An example of a highlyaggressive triggerfish is the Titan Triggerfish. Titan Triggerfishare found in the Indo-Pacific. They are quite large -- over a footlong -- and have specialized teeth and powerful jaws. TitanTriggerfish will defend their nests and territory violently, bitingand butting at intruders.

Tips: Stay with the dive guide and follow his advice. In manycases guides can help divers to avoid dangerous triggerfishterritories.

9. Triggerfish - Dangerous


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Habitat: Remoras are large, gray, parasitic fish usually found stuck tothe sides of sharks, manta rays, and other large species. They simply attach to the larger animal and hitch a ride. While attached

to a host, remoras snack on scraps of meals and waste matter from thelarger creature.

In some cases, remoras will clean bacteria and small parasites from thehost.

Ancaman: Unattached remoras can make themselves obnoxious todivers. Remoras have been known to attach to a diver's tank or body.However, a remora that attaches directly to a diver's skin may scrapehim.

Tips: As long as the diver is covered by a wetsuit, the remora does no

harmThis is yet another reason to wear a full wetsuit or dive skin.

A remora can usually be frightened away by purging a regulator alternateair source in its face.

10. Remoras - Annoying But Not Dangerous


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Habitat: in column of water

Ancaman : This fish looks scary to many divers -- it has a mouth full of sharp,

protruding teeth and moves at lightening speed. However, barracuda attacks

on scuba divers are extremely rare.

Facts:

As with most aquatic life injuries, barracuda attacks are almost always either

defensive or mistaken.

A human who attempts to spearfish a barracuda and misses or only injures the

animal may find himself on the receiving end of defensive action.

A person who feeds a barracuda or other fish near a barracuda may get nipped

accidentally.

Tips: There are also unconfirmed stories of barracudas mistaking reflective or

sparkling objects for prey - such as diamond rings and shiny jewelry. Leave

jewelry on the surface, and don't hunt or feed these fish and they should

pose no danger.

11. Barracuda - Generally

Not Dangerous


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Habitat: Coral reef

Ancaman : As with many other spiny fish

species, lionfish spines release a powerful

neurotoxin when touched. The sting of alionfish is excruciatingly painful, and may lead

to severe allergic reactions.

Facts: In the Atlantic, increasing numbers ofdivers attempt to remove invasive lionfish

from the reef because they are disrupting the

food chain..

12. Lionfish - Dangerous to Touch


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Please coment

13. Humans - Dangerous


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http://www.oahu-diving.com/

http://scuba.about.com/bio/Natalie-Gibb-

70567.htm

References
http://www.oahu-diving.com/http://scuba.about.com/bio/Natalie-Gibb-70567.htmhttp://scuba.about.com/bio/Natalie-Gibb-70567.htmhttp://scuba.about.com/bio/Natalie-Gibb-70567.htmhttp://scuba.about.com/bio/Natalie-Gibb-70567.htmhttp://scuba.about.com/bio/Natalie-Gibb-70567.htmhttp://scuba.about.com/bio/Natalie-Gibb-70567.htmhttp://scuba.about.com/bio/Natalie-Gibb-70567.htmhttp://www.oahu-diving.com/http://www.oahu-diving.com/http://www.oahu-diving.com/


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TERIMA KASIH

Dangerous Marine Life

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