Instytut Oceanografii - Jednostki Administracyjne - MOST Wiedzy

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Instytut Oceanografii

Filtry

wszystkich: 6

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  • Rok

wyczyść Filtry wybranego katalogu niedostępne

Katalog Publikacji

Rok 2020
Rok 2016
  • Modelling of acoustic backscattering by southern Baltic herring
    Publikacja

    - HYDROACOUSTICS - Rok 2016

    Assessment of Baltic herring abundance can be carried out using acoustic techniques. Analysis of the relationship between the Baltic herring individual target strength, TS, and the total fish length, L, important for the acoustic assessment, showed the relationship to be dependent on the location of the study area. This finding motivated a detailed analysis of the relationship for the herring occurring in the southern Baltic...

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Rok 2015
  • Observations of presumable groundwater seepage occurrence in Puck Bay (the Baltic Sea)
    Publikacja

    - Rok 2015

    We report the results of recent field measurements of seawater thermohaline structure and transparency carried out in early summer 2014 in Puck Bay. Near-bottom, less saline waters occurred almost in the entire study area. Their occurrence in the shallow part of Puck Bay was accompanied by an increase in the seawater transparency. The most likely explanation of these observations is a submarine fresh groundwater discharge.

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Rok 2012
  • Backscattering properties of southern Baltic herring
    Publikacja

    - HYDROACOUSTICS - Rok 2012

    Reliable TS(L) relationship is required to improve acoustic algorithms of abundanceestimation of Baltic herring. The relationships, empirically obtained in different parts of theBaltic Sea, produce up to 8 dB – difference in the herring TS. In order to develop an accurateTS(L) relationship, it is important to analyze factors controlling the TS variability. Thepossible impact of the regional difference...

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Rok 2011
  • Study of swimbladder morphometry of Baltic herring and sprat (development of measurement methodology)
    Publikacja

    - 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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Rok 2010
  • On the acoustic backscattering by Baltic herring and sprat
    Publikacja

    - HYDROACOUSTICS - Rok 2010

    Accurate abundance estimate of Baltic clupeids, herring and sprat, is required for theirsustainable exploitation. The understanding the sound backscattering of individual fish isimportant for employing the acoustical techniques, which are widely used in the estimation.The previous studies demonstrated that the improvement of the understanding is critical forthe Baltic herring and sprat. It was the main...

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