Wyniki wyszukiwania dla: spratus spratus

• Preparation, composition and properties of fish silage produced with post-coagulation sludge

  Publikacja

  • R. Tomczak-Wandzel
  • K. Mędrzycka

  - Environment Protection Engineering - Rok 2013

  Post-coagulation sludge was added to fish fydrolyzates (silage). Silage was prepared using whole sprats. Technology of the process has been modified and sulphuric acid was replaced with phosphoric acid. The objective was to evaleuate the quality of produced silage during storage, particulary the changes of peroxide value and amount of free acids in silage fat.

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• Study of swimbladder morphometry of Baltic herring and sprat (development of measurement methodology)

  Publikacja

  • J. Idczak
  • N. Gorska
  • B. Arciszewski

  - HYDROACOUSTICS - Rok 2011

  Effective management of Baltic clupeids, which are valuable commercially and ecologically,requires the biomass control. The acoustical techniques are recognized as effective in fishstock assessment. The study of Baltic herring and sprat individual backscatteringcharacteristics is required for the accurate biomass estimation using acoustical techniques.The previous measurements demonstrated significant...

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