New Zealand fur seal demographics

Open Bay Islands, 1992

Mark-recapture estimate, 05 Feb 1992

Total marked
725
Mean estimate
1326.0
Range
1278.2 – 1373.0

Mark-recapture counts

Count number Date Time Sector Unmarked count Marked count Dead marked Dead unmarked Total marked Cum. dead Estimate?
1 05 Feb 1992 09:30 – 09:31 Sector 1 6 3
05 Feb 1992 09:31 – 09:35 Sector 2 3 14
05 Feb 1992 09:35 – 09:50 Sector 3 17 21
05 Feb 1992 08:03 – 09:32 Sector 4 22 43
05 Feb 1992 08:03 – 09:32 Sector 5 37 48
05 Feb 1992 08:03 – 09:32 Sector 6 29 27
05 Feb 1992 08:03 – 09:32 Sector 7 37 23
All sectors 151 179 - - 725 - 1334.0
2 05 Feb 1992 10:25 – 10:26 Sector 1 4 3
05 Feb 1992 10:15 – 10:25 Sector 2 7 18
05 Feb 1992 10:00 – 10:15 Sector 3 32 27
05 Feb 1992 09:51 – 11:24 Sector 4 8 33
05 Feb 1992 09:51 – 11:24 Sector 5 19 23
05 Feb 1992 09:51 – 11:24 Sector 6 31 30
05 Feb 1992 09:51 – 11:24 Sector 7 27 24
All sectors 128 158 1 1 724 2 1309.6
3 05 Feb 1992 11:20 – 11:23 Sector 1 4 5
05 Feb 1992 11:25 – 11:35 Sector 2 8 21
05 Feb 1992 11:35 – 11:50 Sector 3 38 40
05 Feb 1992 11:44 – 13:10 Sector 4 9 28
05 Feb 1992 11:44 – 13:10 Sector 5 18 16
05 Feb 1992 11:44 – 13:10 Sector 6 29 33
05 Feb 1992 11:44 – 13:10 Sector 7 31 19
All sectors 137 162 - - 724 2 1335.4
4 05 Feb 1992 12:30 – 12:31 Sector 1 2 8
05 Feb 1992 12:10 – 12:30 Sector 2 12 17
05 Feb 1992 12:00 – 12:10 Sector 3 19 36
05 Feb 1992 13:39 – 15:08 Sector 4 10 35
05 Feb 1992 13:39 – 15:08 Sector 5 15 20
05 Feb 1992 13:39 – 15:08 Sector 6 25 28
05 Feb 1992 13:39 – 15:08 Sector 7 48 27
All sectors 131 171 - - 724 2 1278.2
5 05 Feb 1992 13:35 – 13:36 Sector 1 4 7
05 Feb 1992 13:36 – 13:59 Sector 2 8 15
05 Feb 1992 14:00 – 14:20 Sector 3 26 26
05 Feb 1992 15:26 – 17:00 Sector 4 17 27
05 Feb 1992 15:26 – 17:00 Sector 5 18 22
05 Feb 1992 15:26 – 17:00 Sector 6 24 33
05 Feb 1992 15:26 – 17:00 Sector 7 44 27
All sectors 141 157 - - 724 2 1373.0