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Estimation of the number density of fish from resonance absorptivity and echo sounder data |
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| Authors: | Diachok Orest; Liorzou Bernard; Scalabrin Carla |
| Institution: | a Naval Research Laboratory Washington, D.C. 20375, USA b Ifremer 1 rue Jean Villar, Sete, France |
| Abstract: | |
| Keywords: | acoustic absorptivity absorption loss bioacoustic absorption spectroscopy resonance frequency transmission loss swim bladders biomass number density juvenile sardines adult sardines |
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