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National Institute of Biology and BF, Department of Biology, Ljubljana - all departments (BFBNIB)
  • Effects of reduced salinity conditions on Adriatic sprat (Sprattus sprattus phalericus) early life stage developmental success
    Petereit, C. ...
    Sprat (Sprattus sprattus phalericus) is considered a remnant sub-species of boreal cold biota in the Mediterranean Sea showing a dramatic decrease in stock size since the late 1980`s for reasons ... poorly understood. For North Adriatic sprat eggs and yolk sac larvae a laboratory study was conducted simulating 8 salinity levels between 5-37.2 psu, to detect potential effects associated with reduced salinity levels as locally predicted to decline in the future. Egg buoyancy, survival, malformation and developmental rates of eggs and yolk sac larvae were assessed. In conclusion, a general high plasticity in development and survival has been observed. A small decrease in surface salinity during sprat spawning season might impact egg and larval survival, although the effect may be countered if positive egg buoyancy is maintained.
    Type of material - conference contribution
    Publish date - 2016
    Language - english
    COBISS.SI-ID - 4193103