Table 1 Estimations of detection ranges (in m) of antennal rasps produced by spiny lobsters underwater. The averaged values are reported per group of size-matched spiny lobsters (see Material and Methods for details). The different transmission losses (TL) used correspond to the global TL (a = 17.6) calculated between all spiny lobsters (except the very small ones), and the theoretical models of cylindrical TL (a = 10) and practical (a = 15) TLs. Min is signal-to-noise ratio (SNR) = 5 dB and max is SNR = 10 dB.
From: Spiny lobster sounds can be detectable over kilometres underwater
TL | Wenz 5 knots | This study | |||
|---|---|---|---|---|---|
Min | Max | Min | Max | ||
ANL = 81 | ANL = 86 | ANL = 93 | ANL = 98 | ||
Large (N = 9) | 17.6 | 750 | 500 | 250 | 150 |
15 | 1330 | 940 | 510 | 300 | |
10 | 3040 | 2450 | 1690 | 1180 | |
Intermediate (N = 7) | 17.6 | 390 | 230 | 100 | 60 |
15 | 850 | 550 | 270 | 140 | |
10 | 2250 | 1710 | 1030 | 620 | |
Small (N = 3) | 17.6 | 210 | 120 | 50 | 27 |
15 | 420 | 240 | 100 | 50 | |
10 | 1510 | 1030 | 500 | 240 | |
Very small (N = 5) | 17.6 | 70 | 40 | 15 | 8 |
15 | 130 | 70 | 25 | 10 | |
10 | 620 | 330 | 100 | 40 | |
