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Topic: Knifefish

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	Others - Knifefish
		SB : A peaceful Knifefish that, unusually, should be kept in groups.
		PD : This elongated fish is high-backed with a long fin formed by the connection of theanal and caudal fins.The body color is silver-gray with four to ten distinct, fl ocelli on the rear partof the body.Each ocelli is surrounded by a white area.
		The African Knifefish emits chiming bell-like sounds when swallowing airat the water surface.This species has a swim-bladder which serves as a respiratory organ.
	fish.mongabay.com /knifefish.htm (2287 words)

	Shedd Aquarium \| Nile Knifefish
		The Nile knifefish, the only species in the family Gymnarchidae, resembles an electric eel with its dowdy coloring and long, tapering body.
		Instead the pulses enable the knifefish to plot its course, detect food or foes a few feet away, and exchange such information as species and mating or warning signs.
		To escape your learning gap, turn the dial to “WNIF” or head down to Shedd Aquarium to see a live broadcast by the Nile knifefish in the Waters of the World galleries.
	www.sheddaquarium.org /nileknifefish.html (336 words)

	Knifefish, Knifefishes, Orders: Osteoglossiforms and Gymnotiformes
		'Knifefish' is a visually descriptive term for these fish.
		Some others also called 'Knifefish' in their common name, but classified in the order Perciformes (the 'perch-like' fishes) are the Grey knifefish Bathystethus cultratus, Blue knifefish Labracoglossa nitida, Collared knifefish or Finscale razorfish Cymolutes torquatus, Jack-knifefishEquetus lanceolatus.
		In general Knifefish are shy secretive fish that will avoid the light, so provide them with hiding places such as hollow logs, rocks, and caves.
	animal-world.com /encyclo/fresh/Knifefish/Knifefish.php (724 words)

	NationMaster - Encyclopedia: Knifefish (Site not responding. Last check: )
		Families Apteronotidae (ghost knifefishes) Eigenmanniidae (obsolete?) Gymnotidae (naked-back knifefishes and electric eels) Hypopomidae Rhamphichthyidae Sternopygidae The gymnotiforms are an order (Gymnotiformes) of knifefishes that have organs adapted to the exploitation of bioelectricity.
		Binomial name Bathystethus cultratus (Forster, 1801) The grey knifefish (Bathystethus cultratus) is a sea chub of the genus Bathystethus, found around the offshore islands of the east coast of Northland on the North Island of New Zealand, in surface waters.
		Binomial name Labracoglossa nitida McCulloch and Waite, 1916 The blue knifefish (Labracoglossa nitida) is a sea chub of the genus Labracoglossa, found off eastern Australia, and around the offshore islands of the east coast of Northland on the North Island of New Zealand, to depths of 20 metres.
	www.nationmaster.com /encyclopedia/Knifefish (259 words)

	Naked-back knifefish
		The naked-back knifefishes are a family (Gymnotidae) of knifefishes that do not have a dorsal fin[?].
		The sole member of Electrophorus is the electric eel, while Gymnotus includes some of the most abundant knifefish found in the Amazon.
		The Gymnotus knifefishes live in the leaf litter along river banks, in root mats, and in flooded meadows.
	www.ebroadcast.com.au /lookup/encyclopedia/gy/Gymnotidae.html (112 words)

	Knifefish
		Knifefish need a very long or large aquarium that is 40 gallons or more.
		Knifefish can share their aquarium with other large species of fish that will not nip at their fins.
		Knifefish require a tropical community aquarium with water temperatures ranging between 75-85º F. Use an aquarium heater to maintain water temperature.
	www.petsmart.com /global/articles/article_detail.jsp?CONTENT<>cnt_id=10134198673332979&FOLDER<>folder_id=9852723696507217&bmUID=1172120528885&No=72&N=228 (949 words)

	Digital Encyclopedia - Knifefish
		A long fin, often formed by the junctionof the anal and caudal fin, is common to Knifefish.
		The Apteronotinae or Speckled Knifefish family inhabits freshwater habitats of South America.
		Thesefish are laterally compressed with a long anal fin which is moved in an undulating motion.
	www.aspirefreepress.com /digital_encyclopedia/species/fish/fish_list_files/k_fish/Knifefish.htm (134 words)

	NationMaster - Encyclopedia: Gymnotiformes (Site not responding. Last check: )
		The gymnotiforms are an order (Gymnotiformes) of knifefishes that have organs adapted to the exploitation of bioelectricity.
		The best-known member is the electric eel (Electrophorus electricus), which uses powerful electric shocks for both hunting and self-defense, but other members of the order also generate electric fields, using them for locating food and breeding.
		The caudal fin is replaced by the caudal appendage except in the apteronotids, which possess a reduced caudal fin that is interpreted by some authors as being derived from the caudal appendage and not representing an intermediate state in the loss of a caudal fin.
	www.nationmaster.com /encyclopedia/Gymnotiformes (299 words)

	* Knifefish - (Aquarium): Definition
		Clown Knifefish are very popular as food fish in their native land throughout Asia.
		One of the more striking knifefish, their bodies have a series of fl spots, which vary in pattern between fish.
		Numerous catfish, mormyrids, knifefish and eels live in such turbid waters, seeing maybe an inch in front of them throughout their lives, that even if removed to clear water conditions their eyes would still have rather limited visual powers.
	en.mimi.hu /aquarium/knifefish.html (451 words)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal
		The grey knifefish, Bathystethus cultratus, is a sea chub of the genus Bathystethus, found around the offshore islands of the east coast of Northland on the North Island of New Zealand, in surface waters.
		The grey knifefish is a moderate sized pelagic fish with a small head and distinctive knife-shaped body.
		A plankton picking species completely lacking teeth, the grey knifefish lives in the surface layers swimming rapidly and continuously.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=Grey_knifefish (203 words)

	Choosing a Knifefish - PetPlace.com
		The knifefish is an unusual and beautiful fish that is sure to attract attention in your freshwater aquarium.
		Knifefish have a weak electric organ at the base of the tail used for locating their food.
		Knifefish are reported to be peaceful most of the time, but are known to be aggressive eaters and can consume smaller tank mates.
	www.petplace.com /articles/artPrinterFriendly.asp?all=1&conID=21023 (389 words)

	The African Knifefish - Xenomystus nigri
		The African Knifefish is a large carnivorous predator.
		Their bodies are built in the usual Knifefish shape; stocky build with a very long-based anal fin.
		African Knifefish are voracious predators that need meat in their diet.
	www.aquariacentral.com /species/db.cgi?db=fresh&uid=default&ID=0534&view_records=1 (216 words)

	The Anniston Star - Clown knifefish fun for now, could be trouble
		But Moser, having caught numerous clown knifefish during the past seven years, had anticipated the evasive maneuver and scooped it up into his 21-foot Carolina skiff.
		The reason for the death warrant on clown knifefish is that they don’t belong here, according to Gestring.
		Moser says he has seen no indication that clown knifefish are out-competing largemouth bass and peacocks for food and space.
	www.dailyhome.com /sports/2004/as-outdoors-1219-0-4l19c2246.htm (562 words)

	Fish and Aquatic Invertebrates » Freshwater Fish » Knife - African Brown Main Page
		The African Knifefish, also known as the African Knife, Brown African Knife, and Black Knifefish, is pretty and graceful.
		Adding the fact that the African Knifefish is a predator that hunts small fish, the African Knifefish is not a good fish for a densely populated tank.
		It is rare for an African Knifefish to breed in captivity.
	www.centralpets.com /animals/fish/freshwater_fish/fwf4577.html (529 words)

	Knifefishes
		Akin to the many diverse fishes called "eels" the knifefishes are a common name assemblage of fishes having in common a culteriform (knife-shaped) appearance.
		The Banded Knifefish, Gymnotus carapo is the most seen species in the aquarium hobby, though there are some other gorgeous gymnotid species.
		Family Notopteridae: The Feather Fin Knifefishes, are actually osteoglossiforms, bony-tongue fishes...
	www.wetwebmedia.com /FWSubWebIndex/knifefishes.htm (272 words)

	Tszzzzzt! Electric fish may jam rivals' signals (Site not responding. Last check: )
		The brown ghost knifefish (Apteronotus leptorhynchus) generates a weak electric field that it uses to detect obstacles and to communicate with other knifefish.
		When confronting a rival knifefish, both males and females can raise the frequency of their own electric signals close enough to the other fish's to distort its electric field, reports Sara Tallarovic of the University of the Incarnate Word in San Antonio.
		Decades of experiments had shown that knifefish tailor their electric field frequencies to make them differ from those of a field applied by experimenters, so the idea of intentional jamming has been a surprise, says Tallarovic.
	www.animalbehavior.org:8081 /ABS/ABSNews/1132619244 (234 words)

	Featherfin Knifefish, Bronze Featherback, Asiatic Knifefish, Notopterus notopterus
		The Featherfin Knifefish, also known as the Bronze Featherback or Asiatic Knifefish, are generally peaceful.
		The Featherfin Knifefish can grow to be relatively large in the wild, but tank raised fish over 12 inches are rare so you shouldn’t have to worry about eventually dealing with a 2 foot long fish.
		The Featherfin Knifefish, also called the Bronze Featherback or Asiatic Knifefish, are found in southern India, Myanmar and in most coastal river basins of Thailand, Malaysia, Sumatra and Java.
	www.animal-world.com /encyclo/fresh/Knifefish/FeatherfinKnifefish.php (1015 words)

	Knifefish
		Knifefish make interesting additions to a community tank, or a nice show-fish in a specialty type tank.
		Some knifes are native to Africa, (African knife, Clown knife) others come form South America (Black ghost knife, glass knife).
		Knifefish, Black Ghost Eigenmannia virecens 16" 75-80 OK with fish of similar size; adults can be kept with large fish; once adapted hardy and long lived; provide hiding spots; most active at night; quarrelsome among themselves; feed frozen foods, bloodworms
	www.elmersaquarium.com /10knifefish.htm (355 words)

	Black Ghost Knifefish (Apteronotus albifrons)
		The Black Ghost Knifefish is a member of the Apteronotidae family and the speckled knifefish group.
		It does well with other, larger species of a peaceful nature, but may be aggressive towards those of similar or smaller size.
		Carnivorous, the Black Ghost Knifefish will eat all types of live foods including meat, chopped earthworms, as well as frozen and flaked foods.
	www.peteducation.com /article.cfm?cls=16&cat=1911&articleid=2219 (224 words)

	Science Fair Projects - Black ghost knifefish
		The Black Ghost Knifefish (Apteronotus albifrons) is a tropical fish belonging to the ghost knifefish family (Apteronotidae).
		The Black Ghost Knifefish natively lives in fast moving, sandy bottom creeks in a tropical climate.
		They prefer water with a 6.0 - 8.0 pH, a water hardness of 5.0 - 19.0 dGH, and a temperature range of 73-82 F (23-28 C).
	www.all-science-fair-projects.com /science_fair_projects_encyclopedia/Apteronotus_albifrons (306 words)

	The Clown Knifefish - Chitala chitala
		Chitala chitala, commonly known as the Clown Knifefish or Featherback, is a large predator from Southeast Asia.
		Their bodies are elongated in the shape of a blade, which explains the name of "Knifefish".
		Being carnivores, Clown Knifefish must be fed chunks of meaty foods such as chopped beef heart, prawns, live fish or fish meat.
	www.aquariacentral.com /species/db.cgi?db=fresh&uid=default&ID=0545&view_records=1 (355 words)

	The Clown knifefish, Chitala ornata \| Practical Fishkeeping magazine
		Although there are several species of knifefish, the Clown is unmistakable due to its attractive markings - a series of large fl spots, ringed with silver along the body.
		Clown knifefish are very greedy and consume large amounts of high protein foods (see fact file).
		The most common mistakes made with Clown knifefish is that people buy them small for their community tank, only to find their other fish slowly disappear without an obvious culprit - this is due to the Clown knifefish's nocturnal feeding habits.
	www.practicalfishkeeping.co.uk /pfk/pages/show_article.php?article_id=43 (883 words)

	Clown Knifefish
		The Clown Knifefish is a large fish that needs to be kept in a spacious tank.
		This knifefish is a nocturnal predator which will make a meal out of smaller fish overnight.
		It has been achieved, however, with eggs being laid on a rock or wood and the male being left to guard the eggs and fry.
	www.aquarium365.com /s132000.htm (134 words)

	Mechanical Engineering, Extracurricular
		Professors Malcolm MacIver and Neelesh Patankar are collaborating to develop a first-of-its-kind neuromechanical simulation of freely swimming weakly electric knifefish, a model system in neurobiology.
		A complete neuromechanical model of the knifefish is being developed by coupling Professor MacIver's model of the fish's nervous system with Professor Patankar's free swimming computational fluid dynamic model.
		He is an expert in large-scale neuronal simulations, neurophysiology, robotics, and fish motion capture and kinematic analysis.
	www.mech.northwestern.edu /web/home/fishtale.htm (270 words)

	New tube-snouted knifefish \| Practical Fishkeeping magazine (Site not responding. Last check: )
		Scientists have found a new species of tube-snouted knifefish in the lowland waters of the Amazon basin in Brazil.
		The knifefish, which has just been named Sternarchorhynchus curumim by Carlos de Santana and William Crampton in the journal Zootaxa, is a member of the ghost knifefish family Apteronotidae.
		Crampton and de Santana say that the new ghost knifefish can be told apart from other relatives by its distinctive body and fin colouration, and by relative proportions of its body parts and the number of scales above the lateral line midway along its length.
	www.practicalfishkeeping.co.uk /pfk/pages/item.php?news=892 (494 words)

	Aquarium Fish Deals - Misc - Aquarium Knifefish Species (Ghost, Clown, African, Naked-back, South American, Glass Knife)
		The fl knifefish is generally timid and reclusive, preferring a fine-gravel-bottom aquarium with plenty of rocks for hiding places, as well as subdued to dark lighting.
		Clown Knifefish are members of a sub-family called notopterids they develop distinctive dark spots on their sides.
		The Black Ghost Knifefish is a member of the Apteronotidae sub-family and the speckled knifefish group.
	www.fishdeals.com /misc/knifefish (934 words)

	Grey Knifefish, Bathystethus cultratus
		Above and below: Grey Knifefish below the breaking waves (water depth 20 m) at South Solitary Island, Coffs Harbour, New South Wales, April 2006.
		The Grey Knifefish is a compressed fish that has a low spinous dorsal fin, followed by a long-based soft-rayed dorsal fin.
		The Grey Knifefish is a fast swimmer that is usually seen near the surface feeding on plankton.
	www.amonline.net.au /fishes/fishfacts/fish/bcultratus.htm (183 words)

	AquariumPros Forums - View Single Post - black ghost knifefish deformed
		I made a terrible mistake treating a sick angel with [unbeknownst to me] a knifefish incompatible medication.
		My tank is kept in semi-shadow for my angels [picked from ones I bred] and is well planted.
		So far, this sweetie has been very peaceful to tank mates, but he is still so young.
	www.aquariumpros.com /forums/showpost.php?p=45920&postcount=6 (168 words)

	africanknife
		- The African Knifefish was described by Gunther in 1868 as Notopterus nigri.
		The body colour is brown-violet to brown and the fins are lighter.
		They are distinguished from other Knifefish by the lack of a dorsal fin.
	www.wetpetz.com /africanknife.htm (967 words)

	FishInThe.net :: Fish Info
		Community [Large Fish] types require fish of equal or large size to co-habitat with to ensure any of the inhabitants are not killed or overly harassed.
		Glass knifefish are very sensitive to changing water conditions.
		When doing water changes, it is best to replace the removed tank water with water that has been standing for a day or two.
	www.fishinthe.net /html/fishguide/fishguide_fish.php?FC=97&nl=&nt=1 (436 words)

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