Figure 1
From: Differentiation of two swim bladdered fish species using next generation wideband hydroacoustics
Left: experimental setup including boat with two tanks where the EK 80 wide band transceiver and a laptop were stored during the experiment and the mesocosm (6 × 2.3 m) attached to a floating pontoon. Right: mesocosm stocked with free swimming whitefish (blue) and sticklebacks (red), which are depicted together but were sampled separately for data collection. The cone (in grey) represents the true to scale sound cone emitted by the ES-120-7C transducer with an opening angle of 7°. Note that fish are not true to scale due to their small size. Drawings by Leonie Kneipp, LKdraw.
