Tyrehaj
| Tyrehaj | |
|---|---|
 (c) Pterantula, CC BY 2.5 | |
| Bevaringsstatus | |
 Næsten truet (IUCN 3.1)[1] | |
| Videnskabelig klassifikation | |
| Rige | Animalia (Dyr) |
| Række | Chordata (Chordater) |
| Klasse | Chondrichthyes (Bruskfisk) |
| Underklasse | Elasmobranchii (Hajer) |
| Overorden | Selachimorpha |
| Orden | Carcharhiniformes (Blinkhindehajer) |
| Familie | Carcharhinus |
| Slægt | Galeocerdo |
| Art | C. leucas |
| Videnskabeligt artsnavn | |
| Carcharhinus leucas J. P. Müller & Henle, 1839 | |
| Kort | |
 Tyrehajens udbredelse | |
| Hjælp til læsning af taksobokse | |
Tyrehaj
Tyrehajen (Carcharhinus leucas) udgør sammen med tigerhajen og hvidhajen de 3 mest farlige hajer for mennesker. Man har tidligere ment, at grunden til den er så farlig, er at den har det højeste testosteronniveau af alle dyr – det er 200 gange så meget som den normale mand og det skulle gøre den ekstremt aggressiv. Dette er dog ikke blevet undersøgt grundigt nok. Tyrehajen kan desuden overleve i ferskvand.[2]
Referencer
- ^ "Carcharhinus leucas". IUCN's Rødliste. 2008. Hentet 2015-05-21.
- ^ "Testosterone Levels In Carcharhinus Leucas: Is It All Bull? | Christie Wilcox | scienceblogs.com". Arkiveret fra originalen 17. august 2011. Hentet 4. august 2011.
Eksterne henvisninger
Wikispecies har taksonomi med forbindelse til Tyrehaj
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Fish icon with gradient
Fish icon with gradient
A female Carcharhinus leucas at the Shark Reef Marine Reserve, Fiji - pone.0016597.s006.ogv
Forfatter/Opretter: Brunnschweiler J, Baensch H, Licens: CC BY 2.5
The same (see video S2) female Carcharhinus leucas individual documented in November 2004 at the Shark Reef Marine Reserve, Fiji. Note the rounded shape indicating pregnancy compared to the more streamlined shape in video S2 typical of the non-pregnant female.
Forfatter/Opretter: Brunnschweiler J, Baensch H, Licens: CC BY 2.5
The same (see video S2) female Carcharhinus leucas individual documented in November 2004 at the Shark Reef Marine Reserve, Fiji. Note the rounded shape indicating pregnancy compared to the more streamlined shape in video S2 typical of the non-pregnant female.
Bullshark Beqa Fiji 2007.jpg
(c) Pterantula, CC BY 2.5
Adult bull (Carcharhinus leucas) at Shark Reef Marine Preserve, Beqa Lagoon, Fiji; May 2007 by Terry Goss. Shot w/Nikon D70S with Nikkor 12-24mm (@24mm). For more please visit my portfolio: https://www.flickr.com/photos/pterantula/sets/ (https://www.flickr.com/photos/pterantula/538133228/)
(c) Pterantula, CC BY 2.5
Adult bull (Carcharhinus leucas) at Shark Reef Marine Preserve, Beqa Lagoon, Fiji; May 2007 by Terry Goss. Shot w/Nikon D70S with Nikkor 12-24mm (@24mm). For more please visit my portfolio: https://www.flickr.com/photos/pterantula/sets/ (https://www.flickr.com/photos/pterantula/538133228/)
Status iucn3.1 NT da.svg
Forfatter/Opretter:
Danish version of system image for conservation status
Forfatter/Opretter:
- Status_iucn3.1_NT.svg: Peter Halasz
- derivative work: Jeffrey Lins
Danish version of system image for conservation status
Cypron-Range Carcharhinus leucas.svg
Forfatter/Opretter:
,
Licens: CC BY-SA 3.0
Range of bull shark (Carcharhinus leucas).
Forfatter/Opretter:
Range of bull shark (Carcharhinus leucas).