| Sturgeon Hybrids: An Approach to Improve Meat and Caviar Production |
| Paper ID : 1040-ICIAQUA |
| Authors |
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Hamed Vardastzadeh *1, Fatemeh Davoudi Sefidkohi2 1Department of Fisheries, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran 2Agricultural science and natural resources of Gorgan university |
| Abstract |
| Significant advancements in technologies related to artificial reproduction have accelerated the development of sturgeon aquaculture. Due to unusual genetic patterns, sturgeons have the potential to produce interspecific and diverse intergeneric hybrids. Hybridization in sturgeons can occur between species with the same number of chromosomes (producing hybrids with a karyotype similar to the parent species) or between species with different chromosome numbers (resulting in hybrids with an intermediate karyotype between the parent species). These instances demonstrate significant genomic flexibility in sturgeons. The fertility of sturgeon hybrids is influenced by the genetic origin and ploidy of the parent species. It is generally considered that hybrids of sturgeons resulting from the crossing of the same ploidy level species are fertile, while hybrids of species with different ploidy levels may be sterile or partially fertile. More than 20 different hybrids of sturgeon have been reported to date. Based on studies, 39.5% of the total Sturgeon meat produced worldwide is attributed to Acipenser baerii , 35.6% is related to the hybrid Huso dauricus × Acipenser schrenckii and A. baerii × A. schrenckii as well as A. schrenckii (10.2%). Moreover, 31% of the total volume of the caviar produced globally belongs to the A. baerii, 20% is attributed to the Acipenser gueldenstaedtii, 13% is related to the hybrid Huso dauricus × Acipenser schrenki, and 12% is associated with the Acipenser transmontanus. This distribution underscores the significance of hybrid sturgeon species in the production of both meat and caviar. |
| Keywords |
| Aquaculture, Sturgeon, Hybridization, Caviar |
| Status: Abstract Accepted (Poster Presentation) |