Skip to main content
. 2019 Jul 29;9:10997. doi: 10.1038/s41598-019-47335-w

Table 3.

ORCA-SPOT segmentation results based on 238 tapes (≈191.5 hours) distributed over 23 years.

Orchive tapes
S & M detected killer whale segments metric
total segments true killer whale segments false killer whale segments PPV (%)
Y & T samples time (min.) samples time (min.) samples time (min.) samples time (min.)
OS1 OS2 OS1 OS2 OS1 OS2 OS1 OS2 OS1 OS2 OS1 OS2 OS1 OS2 OS1 OS2
1985 20 1,923 2,072 243.94 279.80 1,835 1,966 240.08 272.78 88 106 3.86 7.02 95.42 94.88 98.42 97.49
1986 7 568 492 43.44 39.40 462 478 38.54 38.84 106 14 4.90 0.56 81.34 97.16 88.72 98.58
1987 9 782 911 63.10 79.70 761 900 61.77 79.28 21 11 1.33 0.42 97.31 98.79 97.90 99.47
1988 10 690 838 66.44 90.93 631 752 63.81 84.26 59 86 2.63 6.67 91.45 89.74 96.05 92.67
1989 9 418 486 35.54 39.80 369 471 32.85 39.06 49 15 2.69 0.74 88.28 96.91 92.43 98.14
1990 10 619 585 67.41 67.18 544 577 63.08 66.89 75 8 4.33 0.29 87.88 98.63 93.57 99.57
1991 10 552 544 41.29 44.16 459 504 35.13 42.22 93 40 6.16 1.94 83.15 92.65 85.09 95.60
1992 10 680 625 58.79 58.89 591 620 54.28 58.67 89 5 4.51 0.22 86.91 99.20 92.32 99.62
1993 9 607 579 93.72 98.58 578 568 92.39 98.13 29 11 1.33 0.45 95.22 98.10 98.59 99.54
1994 9 891 899 89.50 98.13 846 870 87.79 96.83 45 29 1.71 1.30 94.95 96.77 98.09 98.68
1995 8 289 753 18.37 75.23 241 381 16.12 40.30 48 372 2.25 34.93 83.39 50.60 87.75 53.56
1996 9 516 787 48.79 62.88 374 524 30.83 42.57 142 263 17.96 20.31 72.48 66.58 63.19 67.70
1998 10 735 739 90.03 95.37 675 732 87.20 95.11 60 7 2.83 0.26 91.84 99.05 96.86 99.73
1999 10 695 763 66.86 81.47 518 548 56.91 65.53 177 215 9.95 15.94 74.53 71.82 85.12 80.43
2000 6 430 436 46.10 47.53 423 432 45.68 47.35 7 4 0.42 0.18 98.37 99.08 99.10 99.63
2001 13 1,164 1,157 109.41 117.60 1,067 1,138 102.78 116.62 97 19 6.63 0.98 91.67 98.36 93.94 99.16
2002 8 831 808 95.25 106.58 752 786 91.07 105.55 79 22 4.18 1.03 90.49 97.28 95.61 99.03
2003 10 669 710 56.94 59.88 605 697 53.68 58.98 64 13 3.26 0.90 90.43 98.17 94.26 98.50
2004 10 1,132 1,193 110.14 129.52 1,072 1,064 107.43 120.00 60 129 2.71 9.52 94.70 89.19 97.53 92.65
2005 9 1,098 1,254 106.98 147.33 975 1,032 100.98 118.87 123 222 6.00 28.46 88.80 82.30 94.39 80.68
2006 8 1,450 1,240 156.58 134.08 1,046 1,141 127.25 129.39 404 99 29.33 4.69 72.14 92.02 81.27 96.50
2009 12 1,248 1,122 106.22 104.10 955 1,060 86.68 100.63 293 62 19.54 3.47 76.52 94.49 81.60 96.67
2010 22 1,069 218 68.74 10.24 867 210 56.60 9.88 202 8 12.14 0.36 81.10 96.33 82.34 96.42
SUM 238 19,056 19,211 1,883.58 2,068.38 16,646 17,451 1,732.93 1,927.74 2,410 1,760 150.65 140.64 87.35 90.84 92.00 93.20