White sturgeon

Acipenser transmontanus

Taxonomy
    • Osteichthyes
      • Acipenseriformes
        • Acipenseridae
          • Acipenser transmontanus
Distribution

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:
S9.0-34.0 years
Malformations:
Syes
Morphology:
Not investigated by FEB yet.
Swimming
Home range:
S0.0-7.0 km
Depth:
S1.0-122.0
Speed:
Not investigated by FEB yet.
Migration:
Sdepends
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:
no data found yet
Social behaviour
Aggregation:
Saggregation
Organisation:
Not investigated by FEB yet.
Aggression:
Sno
Handling
Farming frequency:
Not investigated by FEB yet.
Farming stress:
Syes
Slaughter protocol:
Syes

Farming remarks

Acipenser transmontanus
Li0  ❘  Po2  ❘  Ce2

Acipenser transmontanus is a long-lived and late-maturing species found on the Pacific coast of North America. It is the largest freshwater fish in its distribution range. Although mostly anadromous, there are some non-migrating populations. Once very abundant, it was overfished almost until extinction in the early 20th century, and only through severe fishing restrictions that are still applied its populations were allowed to recover. Farming started in the late 20th century, and although there is a fair amount of research on this species, there are still considerable knowledge gaps and sub-optimal practices that influence its welfare in farming. Namely, behaviour in the wild lacks studies, spatial needs are not met, reproduction is highly manipulated and invasive, substrate requirements are mostly absent, and an effective protocol for stunning and slaughtering is not established. Further effort to provide a more natural environment in farming conditions, natural spawning, and humane stunning and slaughtering should result in improved welfare.





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