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Puffer Fish


Puffer Fish
Photo Information
Copyright: Ricardo Kuehn (ryyck) Silver Star Critiquer/Gold Note Writer [C: 24 W: 0 N: 176] (994)
Genre: Animals
Medium: Color
Date Taken: 2005
Categories: Fish
Camera: Canon A60
Photo Version: Original Version
Theme(s): Nature's cutest, Unusual critters, Underwater Wonder World 2 [view contributor(s)]
Date Submitted: 2005-11-04 8:51
Viewed: 12522
Favorites: 1 [view]
Points: 20
[Note Guidelines] Photographer's Note
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Actinopterygii
Order: Tetraodontiformes
Family: Tetraodontidae

The pufferfish, also called blowfish, swellfish, globefish, balloonfish are fish making up the family Tetraodontidae, within the order Tetraodontiformes. They are named for their ability to inflate themselves to several times their normal size by swallowing water or air when threatened; the same adaptation is found in the closely related porcupinefish, which also have spines (unlike pufferfish).

The eyes and internal organs of most pufferfish are highly toxic, but nevertheless its meat is considered a delicacy in Japan. The name fugu is used both for the fish that are eaten and for their meat. (For more details see Fugu)

There are 185 known species of the family Tetraodontidae, of which 38 can be found in Japan. They can be found worldwide from about 45 latitude north to 45 latitude south, mostly in salt water near coral reefs or the shore, but some species also live in fresh water or brackish water.

The pear-shaped pufferfish is a slow swimmer, and mainly uses its small pectoral fins for propulsion, which does not allow it to escape predators very well. In case of danger, they inflate themselves by filling their extremely elastic stomach with water (or air when outside the water) until they are almost spherical. In case this defense fails, pufferfish also contain a powerful neurotoxin in their internal organs, making them a lethal meal for most predators. It is found mainly in the ovaries and liver, to a lesser extent in the intestines and skin, and only in small amounts in the muscles and blood.

The toxin is called tetrodotoxin, or more precisely anhydrotetrodotoxin 4-epitetrodotoxin and is about 1200 times deadlier than cyanide. This poison can also be found in other animals such as the Blue-Ringed Octopus, or even some newts. The pufferfish does not create the poison itself; rather it is generated by various genera of bacteria within the fish. The fish obtains the bacteria by eating food containing these bacteria. Pufferfish that are born and grown in captivity do not produce tetrodotoxin until they receive some of the poison-producing bacteria, often by eating tissues from a toxin-producing fish. Also, some fish are more poisonous than others. A poisonous fish has enough poison to kill 30 adults.

Tetrodotoxin is a very potent neurotoxin and shuts down electrical signaling in nerves by binding to the pores of sodium channel proteins in nerve cell membranes.

Source: http://www.answers.com/Puffer%20Fish

Midi, wallhalla15, scottevers7, marhowie, joey has marked this note useful
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ThreadThread Starter Messages Updated
To Athila: Puffer fishryyck 1 11-05 23:22
To Midi: Puffer fishryyck 1 11-04 09:35
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Critiques [Translate]

  • Great 
  • Midi Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 146 W: 24 N: 183] (2418)
  • [2005-11-04 8:56]
  • [+]

Superb image, beautiful colours. Never seen a nice picture like this one.Is it in an aquarium?
JL

Hi Ricardo,
It's a great and unusual picture. The pose and POV are great.
Very clear, good details and lovely colours.
Excellent work.

  • Great 
  • manyee Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3089 W: 230 N: 6774] (23770)
  • [2005-11-04 10:56]

Great POV of this pufferfish, ricardo. Sharp details and beautiful color contrast. The blue of the water is fantastic. Wonderful expression on the fish. Well done and TFS. : )

Great picture but unusual!
Focuc and exposure are excellent. POV is unusual. How did you do so it put its nose out of the water? If you grab them underwater, they will swallow a lot of water to blow themself round with spine and then they very spectacular, but you need an UW camera for the picture.
Nice shot and TFS

Ricardo, thats a great picture with an excellent POV. The pose is excellent, very good sharpness, details, colours and composition. Thanks for sharing. Have a great weekend.

This is a great picture! I love the comical look on this pufferfish. Paul :)

Hey Ricardo,
Wonderful capture of this funny looking fish.
Very nice and clear shot. Excellent !!!

Hi Ricardo,
An excellent POV on this shot. Superb detail and color. This one really made me smile!
Scott

Cool & interesting shot Ricardo. A wonderful and unique POV in this "puffer portrait" :-) Great details and light. Excellent note. Well done. Thank You

ryyk,
The perspective of this photo is hilarious. Fantastic pose and perfect sharpness.

Joey

Very clear, good details and lovely colours.

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