Echosounder and ADCP investigation of Baltic fauna

• Autorzy: Schmidt B. , Szczucka J.
• Języki publikacji: EN

Abstrakty

EN

The Baltic fauna is rather meagre, what is connected with their miserable habitat. The area of our investigation is a specific basin because of its land-locked location, brackish water and small depth. It is characterised by enormous diversity of time-variable hydrological conditions. All species of fauna are subjected to the continuous stress of having to adapt to rapid changes in the temperature and salinity of the surrounding water and are exposed to highly variable environment during their every-day vertical migration between the food-rich sea surface and safer deep. The purpose of this paper is to present the results of acoustic investigations of the live interior of the Baltic Sea by means of various acoustic instruments (echosounders and acoustic Doppler current meters). The interpretation of our acoustic images helps to understand the nature and behaviour of the sound scatterers.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2007
• Tom: Vol. 10
• Strony: 175--182
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Schmidt B.

autor

Szczucka J.

• Institute of Oceanology, Polish Academy of Sciences Powstańców Warszawy 55, 81-712 Sopot, Poland,

Bibliografia

• [1] K.L. Deines, Backscatter estimation using Broadband Acoustic Doppler Current Profilers, IEEE 6th Working Conference on Current Measurement, San Diego, 249-253, 1999.
• [2] ICES Zooplankton Methodology Manual, edited by R.P. Harris, P.H. Wiebe, J. Lenz, H.R. Skjoldal, M. Huntley, Academic Press, 684 pp., 2000.
• [3] H. Medwin, C.S. Clay, Fundamentals of Acoustical Oceanography, Academic Press, Boston, 712 pp., 1998.
• [4] B. Schmidt, J. Szczucka, Diel Vertical Migration In the Baltic Sea observed by use of ADCP and SIMRAD EK 500, 2nd International Conference on Underwater Acoustic Measurements: Technologies and Results, Crete, 2007.
• [5] J. Szczucka, Acoustic investigations of biological scattering layers in the Southern Baltic Sea (in Polish), Dissertations and Monographs IO PAS, Sopot, 16, pp.139, 2003.