On the development of Azov sturgeon breeding on the occasion of the 150th anniversary of sturgeon culture in Russia
This article presents a retrospective review of sturgeon breeding evolvement in the Azov Sea Basin. A particular emphasis is placed on the research covering breeders and rearing of juveniles; the development of efficient long-term practice of their culture has been a subject of the institute's research for many years. The best practices of using the individuals at different points of their spawning run (autumn, spring, summer) and different places of capture along their spawning migration route (Taganrog Bay, river deltas, dam-adjacent sites) for breeding purposes in culture have been identified for each species (great sturgeon (beluga), Russian sturgeon, stellate sturgeon) stage by stage on the basis of morphophysiological investigation of heterogeneous individuals belonging to each investigated group of breeders. Special attention was paid to gonad maturity stages in females, and receptivity of oocytes to fertilization. The reasons for the current low recruitment to the stocks of sturgeon species from cultivated generations have been identified; they include reproductive potential of the females from a farmed broodstock and the state of sturgeon hatcheries that calls for an update of their technical equipment and facilities. It is obvious that the Azov sturgeon stock enhancement cannot be steered out of this crisis without the government support, neither at present, nor prospectively. This article also names the most outstanding researchers in sturgeon breeding (biologists, physiologists, fish farmers), who played an important role in the development of the Azov sturgeon culture.
| Main Authors: | , , , , |
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| Format: | Journal Contribution biblioteca |
| Language: | Russian |
| Published: |
2020
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| Subjects: | Huso huso, Acipenser ruthenus, Acipenser nudiventris, Acipenser stellatus, Acipenser gueldenstaedtii, Broodstocks, Fecundity, Survival rate, Sturgeon breeding, Осетроводство, Ремонтно-маточное стадо, Осетровые рыбоводные заводы, Производители, Личинки, Fertilization rate, ASFA_2015::F::Fish culture, ASFA_2015::A::Artificial rearing, ASFA_2015::H::Hatcheries, |
| Online Access: | http://hdl.handle.net/1834/42605 |
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