Table 2. Tank summary of sound production and spawning events for captive spotted seatrout (Cynoscion nebulosus).
Tank Information | Tank 1 | Tank 2 | Tank 3 | Means ± SE |
---|---|---|---|---|
No. of spawns | 81 | 13 | 3 | 32 ± 25 |
No. of spawns/days monitored | 0.32 | 0.06 | 0.01 | 0.13 ± 0.10 |
Eggs collected | 72,486,000 | 13,630,000 | 4,160,000 | 30,092,000 ± 21,372,558 |
Eggs collected/days monitored | 289,944 | 61,396 | 18,739 | 123,360 ± 84,198 |
No. of drums | 227,659 | 123,729 | 15,532 | 122,307 ± 61,240 |
No. of drums/days monitored | 911 | 557 | 70 | 513 ± 244 |
Mean drums between 18:00 to 06:00 (no spawning) | 708 ± 516 | 491 ± 467 | 59 ± 123 | 419 ± 191 |
Mean drums between 18:00 to 06:00 (spawning) | 1,376 ± 538 | 1,624 ± 325 | 856 ± 442 | 1,285 ± 226 |
No. of grunts | 13,109 | 6,105 | 1,786 | 7,000 ± 3,299 |
No. of grunts / days monitored | 52 | 28 | 8 | 29 ± 13 |
Mean grunts between 18:00 to 06:00 (no spawning) | 41 ± 32 | 25 ± 24 | 7 ± 15 | 24 ± 10 |
Mean grunts between 18:00 to 06:00 (spawning) | 78 ± 45 | 69 ± 28 | 63 ± 51 | 70 ± 4 |
No. of staccatos | 3,139 | 1,565 | 22 | 1,575 ± 900 |
No. of staccatos / days monitored | 13 | 7 | <1 | 10 ± 2 |
Mean staccatos between 18:00 to 06:00 (no spawning) | 8 ± 8 | 6 ± 10 | <1 | 7 ± 1 |
Mean staccatos between 18:00 to 06:00 (spawning) | 24 ± 14 | 29 ± 20 | 3 ± 4 | 19 ± 8 |
Mean SPL between 18:00 to 06:00 (no spawning) | 120 ± 3 | 116 ± 3 | 113 ± 2 | 116 ± 2 |
Mean SPL between 18:00 to 06:00 (spawning) | 124 ± 3 | 122 ± 2 | 118 ± 4 | 121 ± 2 |
Notes.
SPL, received sound pressure level (dB re 1 uPa).
Means ± standard deviations reported for individual tanks.
Means ± standard errors of all four tanks.