New Zealand fur seal demographics

Wekakura Point, 2014

Mark-recapture estimate, 28–30 Jan 2014

Total marked
165
Mean estimate
221.9
Range
214.3 – 231.4

Mark-recapture counts

Count number Date Time Sector Unmarked count Marked count Dead marked Dead unmarked Total marked Cum. dead Estimate?
1 28 Jan 2014 11:15 – 12:03 Headland 1 3 39
30 Jan 2014 01:45 – 02:07 Headland 2 13 26
29 Jan 2014 02:17 – 02:36 Headland 3 17 30
All sectors 33 95 - - 165 - 222.1
2 29 Jan 2014 11:55 – 12:05 Headland 1 3 44
30 Jan 2014 05:36 – 05:55 Headland 2 12 23
29 Jan 2014 02:56 – 03:15 Headland 3 15 33
All sectors 30 100 - - 165 - 214.3
3 29 Jan 2014 12:25 – 12:42 Headland 1 5 40
30 Jan 2014 02:20 – 02:40 Headland 2 11 20
29 Jan 2014 03:35 – 03:55 Headland 3 11 23
All sectors 27 83 - - 165 - 218.4
4 30 Jan 2014 01:14 – 01:28 Headland 1 11 39
30 Jan 2014 03:00 – 03:20 Headland 2 7 17
29 Jan 2014 04:15 – 04:40 Headland 3 16 28
All sectors 34 84 - - 165 - 231.4
5 30 Jan 2014 01:48 – 01:59 Headland 1 8 40
30 Jan 2014 03:40 – 04:05 Headland 2 12 21
29 Jan 2014 05:00 – 05:20 Headland 3 11 26
All sectors 31 87 - - 165 - 223.5

Dead count, 27–28 Jan 2014

Count
5

Dead counts

Date Sector Fresh Decomposing Dry Count
27–28 Jan 2014 Headland 1 1 1 - 2
27–28 Jan 2014 Headland 2 2 - - 2
27–28 Jan 2014 Headland 3 1 - - 1
All sectors 4 1 - 5