Home   Publications   Search   Copyright Informations   Contact   Editorial Details   Sitemap 

Bilder Wildlife, Natur, Unterwasser, Bren,Alaska,Weier Hai,Tigerhai
Klaus Jost - Bildergalerie von Wildlife, Natur- & Unterwasserphotographie de /  en Klaus Jost - pictures of wildlife-, nature- & underwater photographie

Apps (iPhone, iPad & iPod):
Seabirds - Photo Collection of Seabirds & Wild birdsgreat white shark
Sharks - Photo Collection of Different Shark Speciessharks
Seabirds - Photo Collection of Seabirds & Wild birdsseabirds

Science - Fiji Shark Project

Scientific shark articles

Alaska & Wildlife




Egypt - Land of the Nile

Fauna & Flora Fiji

Fiji sharkproject



Penguins & seals

Polar bear




Blacktip reef shark

Blacktip shark

Breaching Great White shark

Bull shark

Caribbean reef shark

Shark Finning

Gray reef shark

Great White shark

Great White Shark - Baby

Great White Shark - Fins

Great White shark-trip

Great White shark - Underwater

Lemon shark

Great White Shark - Touching

Silvertip shark

Tawny nurse shark

Tiger shark

Whitetip reef shark

Southern Right Whale


Wildlife South Africa

ECO-PORTAL - An ecological joint project

Bookmark and Share

The dorsal fin of the Great White Shark has a special pattern which makes it individually recognizable. (00014459)

Weißer Hai/Great White shark/Carcharodon carcharias        White shark dorsal fin looking out of wa

Description: Weißer Hai/Great White shark/Carcharodon carcharias

White shark dorsal fin looking out of water

Six sea (or nautical) miles from the coast of Gansbaai, quite close to Dyer Island and Geyser Rock, a great white shark breaks through the water surface. Its dorsal fin cuts through the water. The dorsal fin can be seen quite distinctively. It is an individual, special feature of recognition of the shark, unique and unmistakable. Following the article, which appeared in the edition of „Wissenschaft” on 20th August, 2004, US biomechanics have deciphered the use of the rakish shape of the shark fin. The dorsal fin and also the tail fin with its asymmetric composition ensure the mobility of the shark. The researchers analysed the swirls of current (high-speed camera), created in an upward motion by the enlarged fin. “The current conducts the water simultaneously backwards and downwards”, as explained by Cheryl Wilga and George Lauder from the Rhode Island University. “In this way the vertical manoeuvrablility is increased.“ With fishes with symmetrical fins, swirls of current are formed around a rotational axis, however the shark allows the water to flow in a more complicated way. Two swirl centres layered above each other stabilise it with sideways (or lateral) and vertical movements (Wissenschaft 20/08/2004).


© Klaus Jost - wildlife- & nature- & underwater
All texts and pictures present at this website, are protected by international copyright laws.
Each kind of the duplication, which is manipulating or storage of pictures without the written permission of Klaus Jost is expressly forbidden.