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Topic: Chimaera (fish)


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In the News (Mon 28 Dec 09)

  
  Chimaeras - The Neglected Chondrichthyans
Chimaeras in 'flight' resemble a kind of weird cross between a fish and an angel.
Longnose chimaeras are deep-sea fishes that, as a group, are very poorly known.
The Elephant Fish is caught commercially during the inshore migration, either in trawls or set nets.
www.elasmo-research.org /education/shark_profiles/chimaera.htm   (745 words)

  
 chimaera - HighBeam Encyclopedia   (Site not responding. Last check: 2007-10-10)
Chimaeras resemble sharks in certain fundamental respects: They have cartilage skeletons, males have claspers for internal fertilization of females, and females lay eggs encased in leathery cases.
However, they resemble the bony fishes in having the upper jaw fused to the skull, the gill slits opening into a single chamber, a bony covering, or operculum, over the gill slits, and separate anal and urogenital openings.
A distinctive feature of chimaeras is the presence of extra claspers in the male, one in front of each pelvic fin and a prominent one on the forehead.
www.encyclopedia.com /doc/1E1-chimaera.html   (340 words)

  
 Chimaerids
Chimaerids (ghost sharks and elephant fish) are related to sharks and rays, but they have a skin covering their gills, with a single opening instead of gill slits.
The fish are caught commercially during their inshore migration, either in trawls or in setnets, and the total annual landings are about 1000 tonnes.
Long-nosed chimaeras are rare, deepwater fishes of temperate and tropical seas, living to depths of 2000m.
www.seafriends.org.nz /enviro/fish/sharkray/chimaeri.htm   (1157 words)

  
 Fish ID Guide   (Site not responding. Last check: 2007-10-10)
Chimaera monstrosa are a benthopelagic species generally found between 300 and 500 m, but sometimes to 1000 m.
Rabbit fish are distributed along Atlantic coasts from Morocco and Madeira north to Iceland, Northern Norway, Skagerrak and the North Sea.
Chimaera monstrosa are recognised by their greatly tapering body, with a large head and narrow trunk, which tapers to a whip-like caudal filament.
www.ecoserve.ie /projects/aces/ratfish_chimaera.html   (245 words)

  
 USATODAY.com - Scientists claim to discover new fish in South Atlantic   (Site not responding. Last check: 2007-10-10)
The fish, of the Chimaera genus, is about 12-16 inches long and is found at depths of 1,300 to 2,000 feet, scientists said Thursday.
Soto said his students first photographed the Chimaera aboard the vessel as part of a research project, but they were unaware of the fish's importance and threw it back in the ocean.
Chimaera evolved 400 million years ago during the Devonian Period and are one of the oldest fish species alive today.
www.usatoday.com /news/science/2004-06-18-chimaera_x.htm   (573 words)

  
 fish   (Site not responding. Last check: 2007-10-10)
In parrot fish, sucker fish, etc. the pharynx is equipped with teeth that grind, grasp and tear the food before it enters the esophagus.
Fish with an air-tube connecting the bladder to the digestive tract can let gas escape through the mouth, (open swim bladder) but a closed swim bladder system, reabsorption is necessary.
The entire skin of the fish is alive, even the scales are covered by a thin layer of living cells, the epidermis the only protective material covering the epidermis is slime secreted by mucus glands scattered over the body.
darter.ocps.net /classroom/klenk/Fish.htm   (4356 words)

  
 Picture of a Longnose Chimaera   (Site not responding. Last check: 2007-10-10)
Longnose Chimaeras - Rhinochimaeridae are a deep sea family of fish with six species within it.
Chimaeras are primitive fishes and are closely related to sharks.
Chimaeras have scaleless skin, and eggs that are encapsulated in horny packages.
www.thejump.net /id/longnose-chimaera.htm   (79 words)

  
 Chimaera - Wikipedia, the free encyclopedia
Chimaeras resemble sharks in some ways: they employ claspers for internal fertilization of females and they lay eggs with leathery cases.
They differ from sharks in that their upper jaws are fused with their skulls; they have separate anal and urogenital openings; and they lack the many sharp and replaceable teeth of sharks, having instead a few large permanent grinding tooth plates.
In some classifications the chimaeras are included (as subclass Holocephali) in the class Chondrichthyes of cartilaginous fishes; in other systems this distinction may be raised to the level of class.
en.wikipedia.org /wiki/Chimaera_(fish)   (245 words)

  
 cartilaginous fish
Fish in which the skeleton is made of cartilage.
In modern cartilaginous fish, lungs or swimbladder-like structures (which help to keep fish at a certain depth) are absent, and the fish must maintain its level in the sea by the muscular efforts of swimming.
Subclass Holocephali has one order of living fish, Chimaeriformes, consisting of three families of the chimaera.
www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0065153.html   (319 words)

  
 [No title]
Freshwater: Freshwater fish are hypertonic in relation to their environment, thus water tends to diffuse in and ions tend to diffuse out (mainly via the gills).
Saltwater: Saltwater fish are hypotonic in relation to their environment, thus water tends to diffuse out and ions tend to diffuse in (mainly via the gills).
Stomach: some fish have a stomach, some do not Intestines: The fish intestinal tract is not as distinctly separated as the mammalian tract, and the areas are referred to as pyloric, middle, and rectal.
www.dar.uiuc.edu /VCM-656/fish_notes.doc   (3593 words)

  
 ScienceDaily: Ichthyologist Discovers A New Fish Species In The Waters Of The South Pacific
She determined Chimaera panthera was a new species because of its distinguishing leopard-like brown spots that cover the body and fins.
Fish migration -- Many types of fish undertake migrations on a regular basis, on time scales ranging from daily to annual, and with distances ranging from a few meters to thousands of kilometers.
Perch -- Perca is the genus of fish referred to as perch or yellow perch, a group of freshwater fish belonging to the family Percidae.
www.sciencedaily.com /releases/1999/04/990412074427.htm   (2093 words)

  
 Sea Creatures 101: Chimaeras
Chimaeras are in the class Chondrichthyans, and the sub-class Holocephali (which means "whole head").
The name chimaera, which means "wildly imaginary" or "absurdly fantastic" probably came from the mix of odd characteristics.
Male chimaeras have three clasping organs used for mating- two below the pelvic fin and one on top of their head.
www.suite101.com /article.cfm/aquatic_animals/110557/1   (466 words)

  
 NOAA Ocean Explorer: Living Ocean Gallery: Vertebrates
A small fish sits near the bottom as a crab hops by.
The greeneye fish is one of many creatures observed during the first dive day.
This bottom dwelling fish usually moves across the ocean floor crawling on a pair of modified pectoral fins.
oceanexplorer.noaa.gov /gallery/livingocean/livingocean_fish.html   (779 words)

  
 Elephant Fish (Callorhinchus milii) Chimaera. Callorhinchidae.   (Site not responding. Last check: 2007-10-10)
The Elephant Fish (Callorhinchus milii) Chimaera must be the most spectacular of all the cartilaginous fish.
The eyes are large and set high on the head, while the face of this chimaera is traced with a map of sensory mucus-filled canals.
Besides being well camouflaged, Elephant Fish defend themselves with a long serrated spine that is just in front of their first large dorsal fin.
www.marinethemes.com /elephant.html   (302 words)

  
 Sport Fishing - Cartilaginous Chimaera
About 35 species of chimaeras exist around the world, but only three are known from your area, including the spotted ratfish and fl ratfish.
The longnose chimaera, with its long, spearlike snout, is known from Southern California, the Gulf of California and south Baja.
Chimaeras are distinguished by their long, tapering tails, slippery, unscaled skin, two dorsal fins - the first with a spine and the second long and low - and gill flaps covering the gills.
www.sportfishingmag.com /article.jsp?ID=21413   (360 words)

  
 Rabbit Fish - Chimaera monstrosa
The rabbit fish (also known as rat fish) is registered along the entire Norwegian coast.
It is often encountered resting on muddy or sandy substrate in not too steep slopes.
The first out of two distinct dorsal fins has a stout spine, connected to a gland of poison.
www.seawater.no /fauna/Fisk/havmus.htm   (171 words)

  
 COURTENAY MUSEUM:Animal Classification
This group of advanced bony fish are characterized by a large assemblage of deep-sea fish, extremely varied in habits and body form.
Although the Lobe-finned Fish are a conservative group, enjoying less diversification than have the other subclasses of bony fish, they are also the most important, at least in an evolutionary standpoint, because they are the ancestral stock from which the amphibians, and eventually all land-living vertebrates, evolved from.
They were apparently active surface predators, diving infrequently, and dining mainly on fish, and the occassional belemnoid and octopod, swallowed whole or torn to shreds by the cagelike arrangement of their long, cone-shaped teeth.
www.courtenaymuseum.ca /paleo/paleo/paleo.html   (4809 words)

  
 Glossary: Chimaeras
Chimaera is the common name of a group of fish species that are all closely related to sharks and rays.
Chimaeras live on temperate ocean floors and can grow to be up to 2 meters long.
They have a skeleton made up of cartilage, a smooth scaleless skin, a poisonous spine located in front of their dorsal fin, and a whip-like tail.
www.greenfacts.org /glossary/abc/chimaeras.htm   (92 words)

  
 Deep Sea Fish
Students are shown photos of various weird deep-sea fish as they hear about their general characteristics, including feeding and reproductive habits typical of animals in the deep sea.
Lasiognathus saccostoma: This fish has a huge overbite, which gave it the latin name meaning "grotesque among grotesques." It has a "fishing rod" on top of its head with a lure and three bony hooks, which serve to frighten away prey.
Ask each group to present their fish, highlighting the essential characteristics that make it a fish and explaining its adaptations for life in the deep sea and the significance of other features that the fish may have.
marinediscovery.arizona.edu /lessonsF00/tube_worms/2.html   (2197 words)

  
 September 8 - Ratfish and Chimaera
Ratfish are part of the Chimaera family of cartilaginous fish.
The Chimaera, in Greek mythology, was a creature made of a lion, a goat, and a snake.
To say a ratfish is perhaps the most grotesque creature that a normal fishing trip can produce is a little more accurate than merely saying it is ugly.
www.goatview.com /september8ratfish.htm   (496 words)

  
 Neat fish
Below are some nice fish (originally these were claim to be from the tsunami shore, but in reality that's not the case)
Those fish (most of them) are from like below 1000ft underwater (where there's no sunlight).
Having those deep water fishes up close to look at and study or whatever they want to do.
www.cgshock.com /forums/showthread.php?t=8850   (290 words)

  
 A Hotlist on Cartilaginous fishes
It is basically a two paragraph paraphrase on cartilaginous fishes and what makes them unique, such as the fact that one of their earliest ancestor is the guitarfish.
Jawless and Cartilaginous Fishes - An interesting website that informs one of the body structure and composition of ancient cartilaginous fishes as well as jawless fish.
One of the characteristics that make chimaeras different from other chondrichthyes is that chimaeras have a gill cover over their four gills, leaving one slit on each side.
www.kn.pacbell.com /wired/fil/pages/listcartilagmo.html   (989 words)

  
 CHIMAERA Bibliography
Fish notes: Rabbit fish Chimaera monstrosa L. Irish Naturalists' Journal 24: 411.
Difalco, M R; Congote, L F. Preparation of a recombinant chimaera of insulin-like growth factor II and interleukin 3 with high proliferative potency for haemopoietic cells.
Lovejoy, D A; King, J A; Sherwood, N M; Peter, R E. Identification of gonadotropin-releasing hormone and associated binding substances in the blood serum of a holocephalan (Hydrolagus colliei).
homepage.mac.com /mollet/Ref/Chimaera_ref.html   (771 words)

  
 Venom - Wikipedia, the free encyclopedia
However, venom can also be found in some fish, such as the cartilaginous fishes: stingrays, sharks, and chimaeras and the teleost fishes, which include: monognathus eels, catfishes, stonefishes and waspfishes, scorpionfishes and lionfishes, gurnard perches, rabbitfishes, surgeonfishes, scats, stargazers, weevers, carangids, saber-toothed blenny, and toadfish.
In fact, recent studies have shown that there are more venomous ray-finned fishes than all other venomous vertebrates combined.
Venom evolution widespread in fishes: A phylogenetic road map for the bioprospecting of piscine venoms.
en.wikipedia.org /wiki/Venom   (756 words)

  
 chimaera — Infoplease.com
Chimaeras form the subclass Holocephali of the phylum
An illusory fancy, a wild, incongruous scheme, a castle in the air.
fish, in zoology: Types of Fish - Types of Fish The Jawless Fishes The primitive fishes of the class Agnatha lack jaws and the paired...
www.infoplease.com /ce6/sci/A0811879.html   (301 words)

  
 Ratfish Picture - Chimaera monstrosa   (Site not responding. Last check: 2007-10-10)
Ratfish or Rabbitfish (Chimaera monstrosa) are species of fish that lives at great depths in the ocean althought a summer migration to inshore water during the summer does occur at least locally.
Ratfish live in the Atlantic ocean from Morocco North to north to Iceland and Norway where this one was caught.
Not a sportfish they are usually caught by trawlers after other species.
www.thejump.net /id/ratfish.htm   (64 words)

  
 Cryptozoology.com
There was some sort of fish that in the late 1900's was thought to be extinct, because a fisherman caught one, and no more showed up for a while after that, but, it must've accustomed itself to the deep, and has lived down there for about 60-70 years.
I reckon its a deep sea fish cozz of the colour.
Wheter that is a chaimera fish or not is debatable.
www.cryptozoology.com /gallery/display_picture.php?id=3133   (1896 words)

  
 Aquatic Animals Articles
A Chimaera in Greek Mythology is a creature with three heads-lion, goat, and snake.
A chimaera in the dictionary is "something absurdly fantastic or wildly imaginary".
Tuna is a common food fish that many people eat but don't think too much about.
www.suite101.com /articles.cfm/aquatic_animals   (397 words)

  
 chimaera
Chimaeras have thick bodies that taper to a long thin tail, large fins, smooth skin, and a cartilaginous skeleton.
They can grow to 1.5 m/4.5 ft. Most chimaeras are deep-water fish, and even Chimaera monstrosa, a relatively shallow-living form caught around European coasts, lives at a depth of 300–500 m/1,000–1,600 ft.
Helicon Publishing is a division of Research Machines plc.
www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0019300.html   (225 words)

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