archerfish


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archerfish,

laterally compressed fish, genus Toxotes, which catches insects by spitting at and disabling them. The archerfish has a groove in the roof of its mouth that forms a long narrow tube when the tongue is placed against it; the fish propels drops of water along the tube by compressing its gill covers. Some archerfishes can shoot as far as 12 ft (3.5 m), with reasonable accuracy up to about 4 ft (1.2 m). Apparently they are able to correct the trajectory after missing a target. Shooting down insects is an auxiliary method of food-getting for the archerfish, which feeds mostly on insects floating in the water. The five archerfish species inhabit fresh and brackish coastal water in India and SE Asia. The species most often displayed in aquariums is T. jaculatrix, a silver fish with black stripes, which grows as long as 8 in. (20 cm). Archerfishes are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Actinopterygii, order Perciformes, family Toxotidae.

Archerfish

 

(Toxotes jaculator), a fish of the family Toxotidae, order Percomorphi. It lives in fresh waters of south-eastern Asia and near the shores of the Indian Ocean and adjacent parts of the Pacific Ocean. Body length is up to 20 cm. Archerfish feed on insects, getting their food in a unique manner: by emitting a thin stream of water from their mouth to a distance up to 1.5 m (hence the Russian common name bryzgun, “sprayer”), they accurately knock insects off the branches and roots of coastal plants.

archerfish

[′är·chər‚fish]
(vertebrate zoology)
The common name for any member of the fresh-water family Toxotidae in the order Perciformes; individuals eject a stream of water from the mouth to capture insects.
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In their experiments, the scientists showed that archerfish can learn to discriminate a large number of human face images even after controlling for colour, head-shape and brightness by standardising these aspects.
Their experiment showed that archerfish can discriminate human faces without having any obvious selection pressure for this specific task, suggesting they have sophisticated discrimination abilities.
* What behavior allows an archerfish to catch its prey?
(The archerfish squirts water at insects and spiders, causing them to fall into the water.)
Archerfish in the lab have revealed that they tailor the extra punch to the height of their target, says physiologist Stefan Schuster of the University of Bayreuth in Germany.
They found that archerfish spray larger amounts of water at heavy prey like lizards than they do for smaller prey such as flies.
Archerfish is a remotely-controlled underwater vehicle equipped with an explosive warhead to destroy sea mines.
DEAD SPIT Archerfish DEDEDEADADAD SPIPIPIT Arche fifirfihsh
Products highlighted during the exposition will include the Advanced Precision Kill Weapon System (APKWS ) technology, Multi-Service Standard Guided Projectile (MS-SGP), Long Range Land Attack Projectile (LRLAP), Electromagnetic Railgun, AN/SQQ-32(V)4 mine hunting sonar system, Archerfish mine neutralization system, Mk 38 Mod 2, and other naval gun systems.
For the UUV Raytheon selected BAE Systems Underwater Systems' Archerfish, which operates in a similar manner to the Seafox, has twin propulsors and carries a scanning sonar, lowlight level television and Eurenco shaped charge.
Archerfish and koi reside in this pond and there is an opportunity for young and old alike to join in feeding the fish.
DEAD SPIT Archerfish DEDEDEDEADADADAD SPIPIPIPIT Arcrchehe fifirfirfihshshsh