EFFECT OF IN SITU RADIATED NOISE OF THE PLATFORM USED ON SHALLOW WATER AREA ON ECHO SOUNDER DATA IN FISHERIES-ACOUSTICS

Brehmer, Patrice
Guennegan, Yvon
Arzelies, Patrick
Guillard, Jean
Cheret, Ysabelle
Duformentelle, Pierrette
Colon, Michel

Publication date

January 2003

Publisher

Polish Acoustical Society, Gdansk Department

Abstract

International audienceThe shallow water area of the coastal fringes is important to take into consideration in fish stock assessment because a great part of the stock, especially for the small pelagic fish is distributed in this area (20). In shallow water research vessels are prohibited to navigation (usually <20m) and usually only small boats can be used. One of the main source error in acoustics fish sampling is due to the avoidance reaction generated by the three dimensional noise diagram emitted by the boat. In this paper we highlighted the importance of wind direction and strength in the noise diagram emitted by the boat under in situ condition. A comparison of the noise level of two boats (a Research Vessel and a Speedboat equipped o...

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EFFECT OF IN SITU RADIATED NOISE OF THE PLATFORM USED ON SHALLOW WATER AREA ON ECHO SOUNDER DATA IN FISHERIES-ACOUSTICS

Abstract

Extracted data

EFFECT OF IN SITU RADIATED NOISE OF THE PLATFORM USED ON SHALLOW WATER AREA ON ECHO SOUNDER DATA IN FISHERIES-ACOUSTICS

Abstract

Extracted data

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