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Archiv der Kategorie Best Of Underwater

New Scuba Diving Pictures from yesterdays dives!

19.5.2012 von Daniel Sasse.

[GER]

Neue Tauchbilder von gestern!

Geschrieben in Best Of Underwater, Poseidon, Tauchen | Keine Kommentare »

Protect our Sharks with your Signature!

17.4.2012 von Daniel Sasse.

Help us to Save our Sharks with your Signature!

Sign the Petition
Jump to the German Page

With a mouthful of teeth, sharks do not seem to need much protection.
In fact one shark goes through thousands of teeth in a lifetime. Each row of succeeding teeth is larger than the set before.
But sharks´teeth are built for eating. The shape of a sharks teeth depend on the type of food it eats, and some sharks’teeth change shape as they grow older and their diet changes to suit the needs of their growing bodies.
sharks also have other types of protection. A protective lid, called the nictitating lid, helps keep its eyes safe from harm when it attacks prey or nears an unfamiliar object. Some sharks will also roll their eyes back into the sockets showing only the whites while attacking prey to protect the more important seeing part of the eye.
Bottom feeding sharks, such as the angel shark or wobbegong, have coloration matching their environment. Others will bury themselves in the sandy ocean bottom.
However, sharks have little or no protection from humans who hunt them for almost every part of their body to make leather, jewelry, soup, cosmetics, and other items. Sharks are also hunted for sport and many are inadvertently caught in fishing nets or in nets placed to protect humans.

Shark finning
However; the product that drives the market are the fins. After drying, collagen fibers are extracted from them, cleaned, and processed to make ’shark fin soup’. In spite of the fact that these fibers have little flavour or nutritional value, the soup is considered a delicacy, and may sell in the Orient for more than $100 ( £65) a bowl. As long as the humans pay a lot of money for these fins, it will never stop, and we will kill the sharks and ourselves
The explosive growth of the Chinese economy and rapid expansion of trade with the outside world during the 1985 and 1995 created an unprecedented situation. Suddenly there was an insatiable demand for shark fins of almost any size or type. Improvements in shipbuilding and navigational electronics meant that shark fishing boats could now go anywhere in the world, moving from one place to another as local shark populations were destroyed. The fins are now so much more valuable than the rest of the shark that the carcass is often discarded after the fins are removed, to save storage space on the boat. Often the fins are sliced off when the shark is still alive and the mutilated shark is dumped back into the water, where sinks straight to the bottom because without back fin can´t swim, to die a slow and agonizing death.

Helping To Protect Sharks
Since sharks reproduce at a much slower rate and mature more slowly than bony fish, it is important that people are careful not to deplete the shark population to a point where it can not be recovered. In some cases the environments in which the sharks live are being destroyed.
While sharks have a bad reputation, they rarely attack people unless they are provoked or mistake a human for their normal prey. More people drown in the ocean each year than are attacked by sharks. Only a few of the 365 types of sharks, the bull, the great white, the oceanic white-tip, and the tiger shark are aggressive toward human.
Encouraging the use of electric barriers instead of nets to keep sharks out of an area is one way to help. Also discourage the hunting of sharks for sport or the production of unnecessary articles such as jewelry and souvenirs. In addition learn more about sharks and inform others of ways to live peaceably with these fascinating animals.

A Shark’s Sixth Sense
In order to live and hunt in the ocean waters, sharks have the same 5 senses as human do. They have smell, taste, touch, hearing, and sight. These senses vary in their strength. Many sharks have sharp eyesight, some of which seem particularly sensitive to movement. Most sharks also have a well developed sense of smell.
However, sharks possess a sixth sense which people do not have. Sharks are able to detect weak electrical signals generated by their prey. This sense is detected through small sensory pores called ampullae.

Shark Facts
• The smallest shark is the dwarf dog shark which is 6 ½ inches (16 cm) in length.
• The largest shark, ranging up to 40 ft. (12m) in length is the whale shark.
• Whale sharks are large non aggressive creatures which will sometimes allow divers to hitch a ride by holding on to a pectoral fin.
• Most sharks give birth to live young rather than lay eggs.
• The shark with the longest tail is the thresher shark. Its tail can be 5-8 ft. in length, or as long as its body.
• The hammerhead shark swings its head from side to side as it swims, allowing it to use its well developed sense of smell and many ampullae to search for prey in a wide variety of directions in a small amount of time.
• The fastest shark is the Mako, which can swim at 20 mph (32 kph) and leap completely clear of the ocean surface when it is excited.
• Angel sharks have extra large pectoral fins resembling angel wings. These sharks spend their lives mostly on the ocean bed resting in the sand waiting for prey to come to them.
• Some sharks migrate hundreds of miles using what scientists believe to be a sense of the earth’s magnetic field to guide them.
• One shark makes oval shape bites in its victim, by creating a suction with its lips and swiveling around for the bite. It is appropriately named the cookie cutter shark.
• One of the smallest sharks, the lantern shark, grows to only 8 in (20 cm) in length and glows in the dark.
• The most recent discovery of a shark was not made until 1976. This was the large Megamouth shark, of which only five more have ever been found. This unusual shark which feeds on krill has luminous organs around its mouth.

Please sign our Petition to protect our sharks and in the end ourselves and especially our Kids!

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Poseidon Dive Center now on Google+

29.1.2012 von Daniel Sasse.

Poseidon Dive Center now on Google+

We are a professional friendly and individual Dive-Center in Thailand / Ao Nang. We offer Trips to the amazing Nature Marine Park Phi Phi Islands as well as to the famous local dive sites which are Koh Sii, Koh Haa, Koh Talu and many more!
We offer a big range of courses from beginners up to professionals, fun dives, Free-Diving and Specialties in different languages! German, Swedish, English, French and Thai.
You want to know more about Scuba- and Free-Diving?!
Have a look at our Homepage Facebook & Twitter or send us a mail.

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21.03.2011 Dolphins on the way home from Phi Phi Islands

22.3.2011 von Daniel Sasse.

As we went home from the 2 Dive Trip at Koh Ha Yai National Park we had some Dolphins surfing with the waves of the Boat!

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Wrong Press release: Thailand Dive Sites are closed!

2.2.2011 von Daniel Sasse.

Honeycomb Moray

Despite many press releases worldwide the Thai Government DOES NOT close all dive sites in the Andaman Sea and the Gulf of Thailand region!
Correct is that a few Dive Sites will be closed due to research. The dive sites which will be closed do not reflect on diving pleasure in Thailand. Please find the links where you can see and find more detailed information that only a few reefs will be closed for scientific research purposes:
Another fact: The coral bleaching comes from to warm water temperatures and not from Divers at all!

http://www.tatnews.org/VISITOR-INFORMATION/5263.asp

Also coral bleaching phenomena is not damaging more than 10% of all corals throughout the Kingdom’s seas, but partly in shallow water areas some of the coral life. You still can enjoy wonderful and colourful reefs in the Andamnan Sea and as well in the Gulf of Thailand!

We awaiting you and looking forward to some amazing dives!

The Poseidon Dive Academy Team!

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FEHLINFORMATION: Thailändische Tauchgebiete geschlossen

2.2.2011 von Daniel Sasse.

Honeycomb Murray

Pressemeldungen mit mangelhafter oder gar gänzlich fehlender Recherche ziehen Kreise und verbreiten, alle Riffe in thailändischen Marine National Parks werden gesperrt - Das ist SCHWACHSINN..!!!Richtig ist, dass ein paar wenige Tauchpläzte zu wissenschaftlichen Studienzwecken gesperrt werden, die nicht tauchrelevant sind, bzw die sowieso kaum einer der thailändischen Tauch-Fan-Gemeinde kennt oder jemals betaucht hat. Namentlich und geografisch gelistet findet Ihr die gesperrten Riffe unter folgendem Link:

http://www.tatnews.org/VISITOR-INFORMATION/5263.asp

Dem ungetrübten Tauchspass in thailändischen Gewässern steht also nach wie vor nichts entgegen!

Wir erwarten Euch und wünschen euch immer gut Luft!

Das Poseidon Tauch-Team!

Geschrieben in Best Of Underwater, Umwelt und Marine Schutz, Poseidon, Tauchen | 1 Kommentar »

Winners announced in Ocean Art Underwater Photo Competition

26.1.2011 von Daniel Sasse.

Winners announced in Ocean Art Underwater Photo Competition

The Ocean Art Underwater Photo competition, organized by the Underwater Photography Guide, has announced its winners for 2010. Judges included professional photographers Martin Edge, Chris Newbert, Marty Snyderman and Bonnie Pelnar. Over $67,000 worth of prizes were awarded to 77 photographers.

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