SWIMBLADDER ON FISH TARGET STRENGTH
نویسندگان
چکیده
منابع مشابه
Piece Length Types on Fish Target Strength Model
Fish species can be identify using target strength (TS) model. The result of model compared with result from in situ measurement as benchmark. Selarboops (Oxeyescad) as commercial fish from South China Sea has been used. Lateral and dorsal X-ray of fish has been deployed to perform fish body and swim bladder morphology and then divided into a number of pieces for Kirchhoff-Ray Mode (KRM) model ...
متن کاملAcoustic backscattering by Hawaiian lutjanid snappers. 1. Target strength and swimbladder characteristics.
The target strengths and swimbladder morphology of six snapper species were investigated using broadband sonar, x rays, and swimbladder casts. Backscatter data were obtained using a frequency-modulated sweep (60-200 kHz) and a broadband, dolphinlike click (peak frequency 120 kHz) from live fish, mounted and rotated around each of their three axes. X rays revealed species-specific differences in...
متن کاملComparative Anatomical Study of Swimbladder in Different Species of Fish
Fish are the most numerous group of vertebrates in the world and their anatomy is still not completely studied. This article is aimed to present the morphological study of swimbladder in different species of ray-finned fish which have industrial value namely Russian sturgeon, American paddlefish (order Acipenseriformes), rainbow trout (order Salmoniformes), northern pike (order Esociformes), za...
متن کاملA method for evaluating the effects of biological factors on fish target strength
Understanding the relationship between fish biology and target strength potentially improves the accuracy of acoustic assessments. The effects of individual biological factors (e.g., length, tilt, and depth) on backscatter amplitude have been examined, but the relative contribution of each factor has not been quantified. Dimensionless ratios, which facilitate comparison of disparate quantities,...
متن کاملThe influence of beam position and swimming direction on fish target strength
Fish orientation is consistently identified as a major influence on fish target strength (TS). Generally, orientation is defined as the tilt angle of the fish with respect to the acoustic transducer, whereas a more accurate definition includes tilt, roll, and yaw. Thus far, the influences of roll and yaw on fish TS have only been examined cursorily. We used in situ single-target data to create ...
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ژورنال
عنوان ژورنال: TELKOMNIKA (Telecommunication Computing Electronics and Control)
سال: 2008
ISSN: 2302-9293,1693-6930
DOI: 10.12928/telkomnika.v6i2.561