Table 1. Number of seamounts showing significant increase in tuna catch rates.
Significant Seamounts | ||||
n>100 | n>1000 | |||
No. | % | No. | % | |
Screened | 1658 | 212 | ||
Unique | 602 | 36 | 97 | 46 |
YFT | 283 | 17.1 | 40 | 18.9 |
BET | 233 | 14.1 | 49 | 23.1 |
ALB | 230 | 13.9 | 40 | 18.9 |
YFT-BET-ALB | 9 | 0.5 | 2 | 0.9 |
YFT-BET | 80 | 4.8 | 15 | 7.1 |
YFT-ALB | 24 | 1.4 | 5 | 2.4 |
ALB-BET | 49 | 3.0 | 14 | 6.6 |
No. is the number of seamounts, % is the percentage of screened seamounts showing significantly increase in tuna catch rates as detected by Akaike's Information Criterion on modeling the catch data with and without the distance to seamount term. n is the number of longline sets performed within 100 km from any seamount summit; YFT is yellowfin tuna, BET is bigeye and ALB is albacore.