1/3 of the World Sharks Endangered
By Republika Newsroom
Friday, June 26, 2009 19:12:00 AM
*
Re-post and re-hearsal by sharkworldjutsu
Tuesday, February 21, 2012 WIB

DISCOVERY.COM
Hammerhead sharks: One species of shark are 'dying'

Sepertiga Hiu Dunia Hampir Punah
 1/3 in the open ocean sharks - including great white sharks and hammerhead sharks - face extinction, according to a survey majority menuruk conservation. Species that are hunted in the oceans in general are at risk of extinction, with a half has been categorized as 'dying', says Sharks Specialties Group, the International Union for Conservation of Natural (IUCN).

The study report identifies the hammerhead sharks and hammerhead sharks hooked nose, under threat globally. The details, hammerhead sharks, great white shark, basking shark, white shark spotted, on the list of vulnerable species are globally threatened. Entry in that list are tiger shark species and shark tail sword.

Approximately 100 million sharks are caught for the needs of commercial and sport hunting every year. That makes some species declined sharply to 80 percent in just over ten years, according to the International Fund for Animal Welfare.

The main sharks caught too much. Sharks, especially the very fragile because they are handsomely rewarded for meat and wings - especially in Asia. Whereas almost all types of sharks take many years to mature and produce offspring until bepijah.

Demand for shark fins for Chinese cuisine is considered to provide health benefits, increased earnings followed by China which come surging in the last decade. Often times, the body of the shark is thrown back to sea after shark fin fishing. Cutting is not infrequently performed even alive.

Apart from the ban on fishing in international waters, the practice - known as finning - often carried out illegally, according to experts. Comprehensive survey ever conducted examining 64 species of sharks in the open ocean.

From the research, a significant number of sharks also disappeared, including blue and mako sharks. Although not captured, sometimes they are often injured by fishing equipment when fishing era of commercial tuna and swordfish decades ago.

Ikang rising meat prices have pushed illegal fishing of sharks, so that target sharks as a promising source of revenue, they said Policy Director of the Shark Alliance, Sonja Forham who is also principal author of the study.

"Currently there are no clear restrictions on the number of sharks that can be captured in the arrest," said Sonja. "So regardless of international protection, the sharks are still not protected in the open sea," he added. (Discovery.com / itz) 

Top 10 Deadliest Sharks

January 2, 2011

1. Bull Shark

This shark has a stocky built and possesses a very aggressive behaviour. They can survive in both fresh water and seawater. These sharks breed during the summer and can produce 13 off springs.

2. Great White Shark

You can find this shark in coastal regions with water temperatures ranging between 54-74 degrees Fahrenheit. The great white shark attacks everything that is in the way. It can grow to about 13-16 ft.

3. Tiger Shark

You can typically find these sharks in tropical and sub-tropical waters. When these sharks are young, they display black stripes on their backs. However, these stripes disappear as the shark grows. Their usual colour is bluish green.

4. Oceanic Whitetip Shark

You can find this shark in deep waters all over the world. They have larger and rounder pectoral fins that distinguish them from the other shark species. This shark feeds by swimming through a school of fish.

5. Shortfin Mako

This shark is just one of the four warm-blooded sharks. This characteristic helps increase their speed, which can reach up to 46mph. These sharks are also high jumpers and can jump as high as 28 ft. in the air.

6. Blacktip Reef Shark

You can find this shark around warm shallow waters and coral reefs. This shark got its name from its fin that has a black tip. This shark is not aggressive but it will attack if provoked.

7. Sandtiger Shark

The sandtiger shark is an endangered species this is because of the phenomenon known as intrauterine cannibalism. The baby sharks eat each other while still in the womb. This is the reason why this shark only produces one or two off springs.

8. Hammerhead Shark

These sharks are aggressive predators. You can usually find these sharks near the coastlines. There are nine species of hammerhead sharks, out of the nine, the he scalloped, the great, and smooth hammerheads are three of the most dangerous hammerhead sharks.

9. Blue Shark

Blue sharks usually attack small fishing boats and divers. Anglers are the most common fatalities of blue shark attacks.

10. Lemon Shark

The subtropical and tropical parts of the Atlantic coast of North and South America are the common locations of lemon sharks. Lemon sharks are only aggressive during the mating season. These sharks survive well in captivity.

Sharks are dangerous sea creatures but you have to remember that these sharks do not usually attack unless they feel threatened.

Posted by Ryo Martin Sopian.

 

Shark Facts

January 2, 2011

All Shark Facts

Below is a list of all Shark Facts on the Shark Information website. To browse our facts by tag, visit the main Shark Facts page.

"Sharks have been around for about 400 million years - long before dinosaurs even existed."
history, dinosaurs

"Sharks have the most powerful jaws on the planet."
bite, teeth

"Sharks never run out of teeth - when one is lost another spins forward from the rows of backup teeth."
teeth, bite

"A shark may use over 20,000 teeth during its life."
teeth, bite

"The ...
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Posted by Ryo Martin Sopian.

 

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