Bowfin: Difference between revisions
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== External links == |
== External links == |
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{{wikispecies|Amia calva}} |
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{{commons|Amia calva}} |
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* [http://www.bowfinanglers.com/ Bowfin Anglers' Group] |
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* [http://www.fishbase.org/Summary/FamilySummary.cfm?ID=35 FishBase info for Amiidae] |
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* [http://academics.smcvt.edu/dfacey/AquaticBiology/Fishes%20Pages/Bowfin.html Bowfin info by Brent Courchene] |
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* [http://www.itis.usda.gov:8080/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=161104 Bowfin Taxonomy] |
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{{Actinopterygii}} |
{{Actinopterygii}} |
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Revision as of 00:36, 28 September 2011
| Bowfin | |
|---|---|
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| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | Amiiformes O. P. Hay, 1929
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| Family: | Bonaparte, 1838
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| Subfamily: | |
| Genus: | Amia Linnaeus, 1766
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| Species: | A. calva
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| Binomial name | |
| Amia calva Linnaeus, 1766
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Bowfins are an order (Amiiformes, /[invalid input: 'icon']əˌmaɪ.[invalid input: 'ɨ']ˈfɔːrmiːz/) of primitive ray-finned fish. Only one species, the bowfin (Amia calva), of family Amiidae, survives today, although additional species in six families are known from Jurassic, Cretaceous, and Eocene fossils. The bowfin, the gar, and the sturgeons are among the few extant freshwater fish that were contemporaries of the dinosaurs.
Bowfins are found throughout eastern North America, typically in slow-moving backwaters, canals and ox-bow lakes. When the oxygen level is low (as often happens in still waters), the bowfin can rise to the surface and gulp air into its swim bladder, which is lined with blood vessels and can serve as a lung.
Description and biology
The most distinctive characteristic of the bowfin is its very long dorsal fin consisting of 145 to 250 rays, and running from mid-back to the base of the tail. The caudal fin is a single lobe, though heterocercal.[1] They can grow up to 109 centimetres (43 in) in length, and weigh 9.75 kilograms (21.5 lb).[2] Other noticeable features are the black "eye spot" usually found high on the caudal peduncle, and the presence of a gular plate. The gular plate is a bony plate located on the exterior of the lower jaw, between the two sides of the lower jaw bone.
The bowfin is an indiscriminate predator that readily preys on a broad variety of arthropod and vertebrate prey, from insects and crawfish to other fish and frogs.
The male bowfin exhibits extensive parental care. The male clears an area in the mud for the female to lay eggs in, and then fertilizes them. He hovers nearby and aggressively protects the eggs and the fry after they emerge.[3]
Fishing
Bowfin are usually not considered a good food fish compared to more popular freshwater gamefish species, such as pike or trout. They are generally regarded as trash fish by sportsmen in the United States, because they eat more desirable species, including crayfish. They will occasionally strike - and sometimes ruin with their powerful jaws - artificial lures, but they generally strike on live or cut fishes. When hooked, Bowfin fight powerfully. Bowfin should be handled carefully, as they have very sharp teeth. They will continue to struggle even when pulled out of the water, and will attempt to bite anyone who is handling them.
The list of local and alternate names the bowfin is known by is lengthy, but common ones include "dogfish", "mudfish", "grindle" (or "grinnel"),"swamp muskie", "black fish", "cottonfish" "swamp bass", "poisson-castor", "Speckled Cat" "beaverfish", "Cypress trout" and "lawyer". In parts of Louisiana they are called "tchoupique" or "choupique".[4]
Timeline of genera
Gallery
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Calamopleurus cylindricus fossil -
Bowfin from the Coosa River near Wetumpka, Alabama(Released)
References
- ^ Nelson, Joseph S. (2006). Fishes of the World. John Wiley & Sons, Inc. ISBN 0471250317
- ^ Froese, Rainer, and Daniel Pauly, eds. (2009). "Amiidae" in FishBase. January 2009 version.
- ^ Berra, Tim M. (2001). Freshwater Fish Distribution. San Diego: Academic Press. ISBN 0-12-093156-7
- ^ Meyer, C.P. "Home." Bowfin Anglers Group. Bowfin Anglers Group. 21 Mar 2010.
Sepkoski, Jack.2002.A compendium of fossil marine animal genera.Bulletins of American Paleontology 364:560
Catherine A. McCormick.1981.Central Projects of the lateral line and eight nerves in the bowfin,Amia Calva. The journal of comparative neurology 197:1-15.
JM Conlon, JH Youson, J Whittaker.1991.structure and receptor-binding activity of insulin from a holostean fish, the bowfin:Amia Calva.Biochem j. 276:261-264
T M Nguyen, T P Mommsen, S M Mims, J M Conlon.1994.Characterization of insulins and proglucagon-derived peptides from a phylogenetically ancient fish, the paddlefish:Polyodon spathula.Biochem J.300(Pt 2): 339–345
J M Conlon, J H Youson, T P Mommsen.1993.Structure and biological activity of glucagon and glucagon-like peptide from a primitive bony fish, the bowfin Amia calva.Biochem J.295(Pt 3): 857–861.