Stellate sturgeon

Acipenser stellatus

Acipenser stellatus (Stellate sturgeon)
Taxonomy
    • Osteichthyes
      • Acipenseriformes
        • Acipenseridae
          • Acipenser stellatus
Distribution
Distribution map: Acipenser stellatus (Stellate sturgeon)

Habitat
Temperature:
no data found yet
Salinity:
Sfresh to seawater
Photoperiod:
no data found yet
Substrate:
Syes
Trophic level:
Not investigated by FEB yet.
Growth
Length:
Not investigated by FEB yet.
Weight:
Not investigated by FEB yet.
Maturity:
S6.0-14.0 years
Malformations:
Syes
Morphology:
Not investigated by FEB yet.
Swimming
Home range:
no data found yet
Depth:
S3.0-300.0 m
Speed:
Not investigated by FEB yet.
Migration:
Sanadromous
Type:
Not investigated by FEB yet.
Reproduction
Nest building:
Sno
Courtship:
no data found yet
Mating type:
no data found yet
Fecundity:
Not investigated by FEB yet.
Brood care:
Sno
Social behaviour
Aggregation:
no data found yet
Organisation:
Not investigated by FEB yet.
Aggression:
Syes
Handling
Farming frequency:
2 t/year 2018
Farming stress:
Syes
Slaughter protocol:
Syes

Farming remarks

Acipenser stellatus
Li0  ❘  Po1  ❘  Ce0

Acipenser stellatus is found in the Black and Caspian seas and connecting rivers, to where it migrates for spawning in spring and summer. It is a critically endangered species, driven to near extinction by overfishing, habitat destruction, and disruption of river connectivity. Although it has been in the focus of aquaculture because it is the source of the sevruga caviar, there is a severe lack of knowledge concerning biology and behaviour in the wild (home range, aggregation, aggression for example) and also many aspects of farming (aggression, environmental enrichment, stress, and slaughter). This lack of knowledge not only severely hinders the assessment of its welfare state but also impedes almost any perspective for improvement.





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