During July 2017, SMART drumlines were deployed for 24 and 30 days at Ballina-Lennox Head; Evans Head, respectively (Table 1). The average number of hours that SMART drumlines were deployed at each location varied daily (5:37h to 10:40h) depending on ocean conditions; was longer at Evans Head (8:55 - 7:15 to 10:12) than Ballina-Lennox Head (8:15 - 5:37 to 10:40).
Total catches
A total of 27 target sharks were caught during July; 11 White Sharks at Ballina-Lennox Head and 16 White Sharks at Evans Head (11 males, 15 females; 1 unknown) (Table 1).
Four non-target animals were caught; two Greynurse Sharks (1 female; 1 unknown sex), one female Dusky Whaler Shark; and one female Black Ray (Table 1).
All animals were released alive.
On 12 occasions alerts had no catch with the bait fully intact on nine hooks when the contractor arrived.
Table 1. The date and time of capture of species and their sizes (total length in m), sex and status during the month of July 2017.
Beach | Date | Time | Species | Size (TL) and sex | Status at release |
---|---|---|---|---|---|
Ballina to Lennox Head | |||||
Lennox Head Beach | 03/07/2017 | 12:33 | White Shark | 2.6; Female | Alive |
Lennox Point | 17/07/2017 | 08:34 | Greynurse Shark | ~3.0; Unknown | Alive |
Angels Beach | 03/07/2017 | 10:54 | White Shark | 2.8; Female | Alive |
Shelly Beach | 09/07/2017 | 08:55 | White Shark | ~2.5; Unknown | Alive |
Lighthouse Beach | 03/07/2017 | 10:18 | White Shark | 2.4; Female | Alive |
South Ballina Beach | 08/07/2017 | 15:11 | White Shark | 3.0; Female | Alive |
Evans Head | |||||
Airforce Beach | 02/07/2017 | 07:47 | White Shark | 2.4; Male | Alive |
Main Beach | 04/07/2017 | 07:48 | White Shark | 2.4; Female | Alive |
Shark Bay to Joggly Point | 03/07/2017 | 15:03 | White Shark | 2.3; Female | Alive |
Table 2. Cumulative total of species caught on SMART Drumlines since December 2016 at Ballina/Lennox Head, and Evans Head
| White Shark | Tiger Shark | Grey Nurse Shark | Bull Shark | Dusky Shark | Whaler - unidentified | Black Ray | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ballina to Lennox | Evans Head | Ballina to Lennox | Evans Head | Ballina to Lennox | Evans Head | Ballina to Lennox | Evans Head | Ballina to Lennox | Evans Head | Ballina to Lennox | Evans Head | Ballina to Lennox | Evans Head | |
8 Dec – 7 Jan 2017 | 4 | 5 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
8 Jan – 7 Feb 2017 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
8 Feb – 7 Mar 2017 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
8 Mar – 7 Apr 2017 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
8 Apr – 7 May 2017 | 7a | 3b | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
8 May - 31 May 2017 | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
1 June - 30 June 2017 | 5 | 11 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
1 July - 31 July 2017 | 11 | 16 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 |
TOTAL | 33 | 41 | 2 | 1 | 1 | 4 | 3 | 0 | 1 | 1 | 1 | 0 | 0 | 1 |
a – 1 individual died
b – 1 individual was found dead on Airforce Beach, Evans Head on May 12 after being tagged and released on May 7