New Zealand fur seal demographics

Cape Foulwind, 1993

Mark-recapture estimate, 10 Feb 1993

Total marked
200
Mean estimate
487.4
Range
453.3 – 515.3

Mark-recapture counts

Count number Date Time Sector Unmarked count Marked count Dead marked Dead unmarked Total marked Cum. dead Estimate?
1 10 Feb 1993 16:12 – 16:20 Block field 10 3
10 Feb 1993 15:44 – 16:20 Log area 5 13
10 Feb 1993 15:48 – 16:20 Mid block 14 6
10 Feb 1993 15:54 – 16:20 North boulder beach 11 4
10 Feb 1993 16:04 – 16:20 North gut 12 -
10 Feb 1993 15:35 – 16:20 South gut 3 12
10 Feb 1993 15:58 – 16:20 Tunnel beach 8 11
All sectors 63 49 - - 200 - 453.3
2 10 Feb 1993 16:49 – 16:55 Block field 7 2
10 Feb 1993 16:34 – 16:55 Log area 5 9
10 Feb 1993 16:39 – 16:55 Mid block 14 6
10 Feb 1993 16:41 – 16:55 North boulder beach 5 1
10 Feb 1993 16:46 – 16:55 North gut 24 13
10 Feb 1993 16:29 – 16:55 South gut 12 15
10 Feb 1993 16:41 – 16:55 Tunnel beach 5 1
All sectors 72 47 - - 200 - 501.5
3 10 Feb 1993 17:23 – 17:27 Block field 15 3
10 Feb 1993 17:06 – 17:27 Log area 8 10
10 Feb 1993 17:09 – 17:27 Mid block 11 8
10 Feb 1993 17:11 – 17:27 North boulder beach 5 4
10 Feb 1993 17:19 – 17:27 North gut 8 2
10 Feb 1993 16:58 – 17:27 South gut 18 17
10 Feb 1993 17:16 – 17:27 Tunnel beach 18 9
All sectors 83 53 - - 200 - 508.9
4 10 Feb 1993 17:54 – 17:58 Block field 15 3
10 Feb 1993 17:34 – 17:58 Log area 7 11
10 Feb 1993 17:39 – 17:58 Mid block 8 8
10 Feb 1993 17:42 – 17:58 North boulder beach 1 4
10 Feb 1993 17:50 – 17:58 North gut 9 3
10 Feb 1993 17:30 – 17:58 South gut 17 20
10 Feb 1993 17:46 – 17:58 Tunnel beach 20 10
All sectors 77 59 - - 200 - 458.0
5 10 Feb 1993 18:21 Block field 24 3
10 Feb 1993 18:03 Log area 7 10
10 Feb 1993 18:06 Mid block 8 4
10 Feb 1993 18:09 North boulder beach 8 5
10 Feb 1993 18:16 North gut 7 1
10 Feb 1993 18:00 South gut 9 14
10 Feb 1993 18:13 Tunnel beach 17 13
All sectors 80 50 - - 200 - 515.3