thase watler presentation black tip shark

8/9/2019 Thase Watler Presentation Black Tip Shark

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Ladies and gentlemen, boys and girls and

teachers. My name is Thase and today I

would like to tell you some interestinginformation in my Autobiographifical report

On the Black Tip Shark. The reason I

choose Black tips shark is because I find

them very interesting.

Introduction


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Information of the Black Tip Shark

Black Tip Sharks are a species of requiemsharks. It is common to coastal tropical andsubtropical waters around the world. Youcan notice the black tip shark because itsbody is grey in color, but the tips of its finsare black. The black tip sharks mostly livesin the habitats of the coral reefs where

there is warm temperature. This Shark usesits caudal fin to move and it uses itspectoral fins to steer itself. Black tips haveto continue swimming or they will sink tothe bottom of the ocean. Black tips areconsider to be an Apex predator, becausetheir teeth changes throughout their lifetime, sensitive smell receptor and eyes thatadapt quickly to low light levels. Black tippreys on mullets, ladyfish, jacks andoccasionally stingrays. It obtains its foodby circling its prey and then it attacks. Thisshark has no predators because it is astrong and defensive shark. All sharksincluding the black tips use their gills tobreathe in water.


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Distinctive Features

Black tips are stout bodied with a moderately longand pointed snout. They lack an interdorsalridge. The first dorsal fin, near to the pectoral fininsertion,.The pectoral fins are fairly large andpointed.


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SharkSharkBabiesBabiesSharkSharkBabiesBabies

Some sharks lay eggs like birds,

while others have their children

the way humans have theirs. A

black tip shark is a shark like the

nurse shark that deposits their

egg cases in the sea. The babiesinside get their food from the yolk

until the egg hatches. We are

lucky we have parents to protect

us. These eggs did not have

anyone to protect them. There

were many big fish that ate theeggs so it was a chance of them

not surviving. Sharks such as the

horn sharks and the black tip

sharks are known as the

oviparous sharks.

A shark egg..


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Dangers of Black Tip Sharks

Black tips can be very dangerous,

because they are know to be responsiblefor a number of unprovoked attack on

humans around the world. About 20% of

attacks happened on surfers.


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What happened if the environment

changes At this moment Black tip faces treat that comes from the

Commercial and recreational fisheries. The flesh is consumed

by humans or used in fish meal, hides are used for leather, fin

sold to the Asian markets for fin soup and the liver provide

vitamin rich oil. The black tip shark inshore habitat is alsovulnerable to the impacts of human activities, which can alter

or degrade the nursery areas. Any form of sustained humanactivity will modify the natural environment, affect the number

of species in that environment and in extreme cases lead to

extension. The primary human activities causing species

extinction are hunting, collection, and habitat destruction. Of

these three, it is habitat destruction that most significantly

affects biodiversity and sometimes leads to species extinction.

Just think, if someone came and destroyed your home, and

took away your food while you was at it, your odds of making it

would be dim.


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Continuation of environment

This is the case for many species that depend on the

reef, seagrass beds, or mangrove for habitat and

protection, and find themselves out of luck when

their habitat is damaged, dredged up, polluted, or

even removed. The black tip shark are not yet

becoming extinct. However as their being fished, and

habitats become vulnerable to degradation, it is

becoming close to being extinct. I hope careful

fishing management, and good measures are beingtaken to protect the coastal habitat of the Black Tip

Shark so that it will not become in this category.


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THANK YOU

By:

Thase Watler

My resources was taking from the following websites:

http://www.arkive.org/blacktip-shark/carcharhinus-limbatus/info.html

http://en.wikipedia.org/wiki/Blacktip_shark

http://www.nmfs.noaa.gov/sharks/FS_blacktipshark.htm

http://ambergriscaye.com/reefbriefs/briefs50.html

From the book called, Discover Sharks, and my Teacher.

thase watler presentation black tip shark

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