The bastard sturgeon, also known as the fringebarbel sturgeon, ship sturgeon, spiny sturgeon, or thorn sturgeon (Acipenser nudiventris),[5] is a species of fish in the family Acipenseridae.[1] These fish are typically found along the benthos of shallower waters near shorelines or estuaries.[5][6]
Acipenser nudiventris typically feed on other animals near the benthos including: insect larvae, mollusks, crustaceans, and other smaller fish.[5][7][8]
Reproductionedit
Acipenser nudiventris are usually anadromous—meaning they live in saltwater and travel to freshwaters to deposit eggs—but some can spend their entire life cycle in freshwater.[8] Because they travel from saltwater to freshwater to spawn, they often live nearby estuaries.[8] Migration to freshwaters for deposition of eggs occurs during spring between the months of March and May, and fall between October and November.[8][6] On average, female bastard sturgeon produce between 200,000 and 300,000 eggs over the course of their lifetime.[7] The young Acipenser nudiventris can live in freshwater for years following birth prior to traveling to the sea, though many migrate to the sea soon after birth.[5] The average time between birth of subsequent Acipenser nudiventris is around 15 years; variation in generation time of this species is somewhat dependent on human fishing patterns and whether the species is thriving in its environment.[8]
Conservation statusedit
Formerly abundant in the Black, Aral and Caspian seas, its range is now primarily limited to the Ural River (in Russia and Kazakhstan), with possible relict populations in the Rioni River in Georgia and the Safid Rud in Iran.[8] One of the most established populations is one in Lake Balkhash in Kazakhstan, well outside its natural range, where they were introduced in the 1930s for commercial purposes.[5] A decline in the abundance of Acipenser nudiventris has been reported due to overfishing and damming, which have led to limitations placed on fishing for bastard sturgeon in areas such as the Ural River.[8][9] In order to alleviate concerns with rapidly decreasing Acipenser nudiventris, an effort was made to raise these fish in captivity before releasing them back into rivers they once inhabited.[7]
Head
Referencesedit
^ abGesner, J.; Freyhof, J.; Kottelat, M. (2010). "Acipenser nudiventris". IUCN Red List of Threatened Species. 2010: e.T225A13038215. doi:10.2305/IUCN.UK.2010-1.RLTS.T225A13038215.en. Retrieved 17 November 2021.
^"Appendices | CITES". cites.org. Retrieved 14 January 2022.
^Froese, R.; Pauly, D. (2017). "Acipenseridae". FishBase version (02/2017). Retrieved 18 May 2017.
^"Acipenseridae" (PDF). Deeplyfish- fishes of the world. Retrieved 18 May 2017.
^ abcdeVecseia, Paul; Artyukhinb, Evgenii; Peterson, Douglas (2002). "Threatened fishes of the world: Acipenser nudiventris Lovetsky, 1828 (Acipenseridae)" (PDF). Environmental Biology of Fishes. 65 (4): 455–456. doi:10.1023/A:1021124904613. S2CID 26573687.
^ abLovetzky (1828). "Fringebarbel sturgeon (Acipenser nudiventris)". Marine Species Identification Portal. from the original on 10 April 2021. Retrieved 9 April 2021.
^ abcSivkov, Ianaki; Stefanov, Tihomir; Trichkova, Teodora (2011). Red data book of the republic of Bulgaria. Vassil Golemansky, Dimitar Peev, Valko Biserkov, Bŭlgarska akademii︠a︡ na naukite. Sofia: Bulgarian Academy of Sciences. p. 48. ISBN978-954-9746-21-1. OCLC 995229803.
^ abcdefg"Thorn Sturgeon (Acipenser nudiventris) Ecological Risk Screening Summary" (PDF). U.S. Fish and Wildlife Service. 29 August 2018. (PDF) from the original on 10 April 2021. Retrieved 9 April 2021.
bastard, sturgeon, bastard, sturgeon, also, known, fringebarbel, sturgeon, ship, sturgeon, spiny, sturgeon, thorn, sturgeon, acipenser, nudiventris, species, fish, family, acipenseridae, these, fish, typically, found, along, benthos, shallower, waters, near, s. The bastard sturgeon also known as the fringebarbel sturgeon ship sturgeon spiny sturgeon or thorn sturgeon Acipenser nudiventris 5 is a species of fish in the family Acipenseridae 1 These fish are typically found along the benthos of shallower waters near shorelines or estuaries 5 6 Ship sturgeon Conservation status Critically Endangered IUCN 3 1 1 CITES Appendix II CITES 2 Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Actinopterygii Order Acipenseriformes Family Acipenseridae Genus Acipenser Species A nudiventris Binomial name Acipenser nudiventrisLovetsky 1828 Synonyms 3 4 Acipenser schypus Guldenstadt 1772 ex Bonnaterre 1788 Acipenser turritus Fitzinger amp Heckel 1836 Acipenser glaber Fitzinger 1836 Lioniscus glaber Fitzinger 1836 Acipenser nudiventris derjavini Borzenko 1950 Acipenser shipus Lovetzky 1834 non Guldenstadt 1772 Euacipenser nudiventris Lovetsky 1828 Contents 1 Feeding 2 Reproduction 3 Conservation status 4 ReferencesFeeding editAcipenser nudiventris typically feed on other animals near the benthos including insect larvae mollusks crustaceans and other smaller fish 5 7 8 Reproduction editAcipenser nudiventris are usually anadromous meaning they live in saltwater and travel to freshwaters to deposit eggs but some can spend their entire life cycle in freshwater 8 Because they travel from saltwater to freshwater to spawn they often live nearby estuaries 8 Migration to freshwaters for deposition of eggs occurs during spring between the months of March and May and fall between October and November 8 6 On average female bastard sturgeon produce between 200 000 and 300 000 eggs over the course of their lifetime 7 The young Acipenser nudiventris can live in freshwater for years following birth prior to traveling to the sea though many migrate to the sea soon after birth 5 The average time between birth of subsequent Acipenser nudiventris is around 15 years variation in generation time of this species is somewhat dependent on human fishing patterns and whether the species is thriving in its environment 8 Conservation status editFormerly abundant in the Black Aral and Caspian seas its range is now primarily limited to the Ural River in Russia and Kazakhstan with possible relict populations in the Rioni River in Georgia and the Safid Rud in Iran 8 One of the most established populations is one in Lake Balkhash in Kazakhstan well outside its natural range where they were introduced in the 1930s for commercial purposes 5 A decline in the abundance of Acipenser nudiventris has been reported due to overfishing and damming which have led to limitations placed on fishing for bastard sturgeon in areas such as the Ural River 8 9 In order to alleviate concerns with rapidly decreasing Acipenser nudiventris an effort was made to raise these fish in captivity before releasing them back into rivers they once inhabited 7 nbsp HeadReferences edit a b Gesner J Freyhof J Kottelat M 2010 Acipenser nudiventris IUCN Red List of Threatened Species 2010 e T225A13038215 doi 10 2305 IUCN UK 2010 1 RLTS T225A13038215 en Retrieved 17 November 2021 Appendices CITES cites org Retrieved 14 January 2022 Froese R Pauly D 2017 Acipenseridae FishBase version 02 2017 Retrieved 18 May 2017 Acipenseridae PDF Deeplyfish fishes of the world Retrieved 18 May 2017 a b c d e Vecseia Paul Artyukhinb Evgenii Peterson Douglas 2002 Threatened fishes of the world Acipenser nudiventris Lovetsky 1828 Acipenseridae PDF Environmental Biology of Fishes 65 4 455 456 doi 10 1023 A 1021124904613 S2CID 26573687 a b Lovetzky 1828 Fringebarbel sturgeon Acipenser nudiventris Marine Species Identification Portal Archived from the original on 10 April 2021 Retrieved 9 April 2021 a b c Sivkov Ianaki Stefanov Tihomir Trichkova Teodora 2011 Red data book of the republic of Bulgaria Vassil Golemansky Dimitar Peev Valko Biserkov Bŭlgarska akademii a na naukite Sofia Bulgarian Academy of Sciences p 48 ISBN 978 954 9746 21 1 OCLC 995229803 a b c d e f g Thorn Sturgeon Acipenser nudiventris Ecological Risk Screening Summary PDF U S Fish and Wildlife Service 29 August 2018 Archived PDF from the original on 10 April 2021 Retrieved 9 April 2021 Abdolhay Hossein 2004 Marine Ranching Rome FAO Fisheries Technical Paper p 170 ISBN 92 5 104961 0 nbsp This order Acipenseriformes Sturgeon and Paddlefish related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Bastard sturgeon amp oldid 1162644048, wikipedia, wiki, book, books, library,
