Starry sturgeon
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| Starry Sturgeon | ||||||||||||||
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| Acipenser stellatus Pallas, 1771 |
Starry Sturgeon, Acipenser stellatus, also known as Drakul and (Turkish) Uzun Burun (long nosed) is a species of sturgeons, living in the Black, Azov, and Caspian sea basins. It is rare in Adriatic Sea. It reaches 220 cm (over 7 feet) and weighs up to 80 kg (approximately 180 Lbs). Maximum reported age for this species is 27 years. Starry sturgeon is a harmless species.
It is an important commercial species. It is one of the three most important species for caviar along with Beluga sturgeon and Persian sturgeon. Its flesh is considered an expensive delicacy in the Caspian region. It is used to make kababs, or is consumed pan fried, broiled, or smoked. There have been several attempts in Russia, Iran, Italy, and the US to adapt this species for aquaculture with varying degrees of success.
The resilience of this species is low. The minimum population doubling time is 4.5 - 14 years.
Starry sturgeon is an endangered species and trade in products made from its body parts are restricted by CITES
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[edit] Environment
Demersal; anadromous lives in depth ranging between 10 – 100 m. Prefers temperature between 10 – 20°C. It is mainly found near shore over sand and mud, stays at the bottom during the day and rises to the surface to feed at night. Feeds mainly on fish, also mollusks, crustaceans and worms.
[edit] Appearance
It has a dark grey to almost black back. Flanks are lighter, belly is almost white. Morphology: Dorsal soft rays (total): 40 - 46; Anal soft rays: 24 – 29. Snout long, pointed at tip. Lower lip not continuous, interrupted at center. Barbels short not reaching mouth but nearer to it than to tip of snout. Five rows of scutes, dorsal 11-14, lateral 30-36 on each side, ventral 10-11 on each side, with small bony stellate plates and smaller grains between main scute rows.
[edit] See also
[edit] References
- ^ Sturgeon Specialist Group (1996). Acipenser stellatus. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 25 February 2007. Listed as Endangered (EN A2d v2.3)
