Operation

From 1 November to 1 December 2019, 10 SMART drumlines were deployed for 31 days at Barrenjoey−Newport and 29 days at Manly−Dee Why. Environmental conditions determined how long SMART drumlines were deployed on any given day, ranging from 5:20 to 12:15h at Barrenjoey−Newport and 5:03 to 11:47h at Manly−Dee Why. On average, SMART drumlines were deployed daily for 9:45h at Barrenjoey−Newport and 9:20h at Manly−Dee Why.

Catch

From 1 November to 1 December 2019, five target sharks were caught (Table 1): three White Sharks at Palm Beach, Dee Why Beach and Freshwater Beach and two Tiger Sharks at Manly Beach and Curly Curl Beach. Four non-target animals were caught, including two Dusky Whalers and two Mako Sharks (Table 1).  All sharks were released alive, except the Mako Shark.

Comments

When the contractors responded to three alerts at Manly- Dee Why, they found that all hooks had 100% of the bait remaining.

Three SMART drumlines failed to set off an alert on 9 November and 28 November 2019 at Barrenjoey−Newport and 19 November 2019 at Manly-Dee Why.  When the contractor arrived at the drumlines for retrieval at the end of the day, a Dusky Whaler and Tiger Shark were found alive on the line, which were tagged and released immediately (Table 1). A Mako Shark was found dead despite being hooked in the mouth.

All other sharks triggered an alert to the DPI contractors who responded and were at the SMART drumline within an average of 18 minutes.

Table 1: The date and time of capture of species, their sizes (total length in m), sex, and status from 1 November to 1 December 2019.

Beach name

Date

Time

Species

Size (TL) and sex

Status

Barrenjoey−Newport

     

Palm Beach

14/11/2019

15:48

White Shark

1.7; Male

Alive

Bigola Beach

28/11/2019

16:38*

Dusky Whaler

1.7; Male

Alive

Avalon Beach

09/11/2019

15/11/2019

18:12*

10:38

Mako Shark

Dusky Whaler

1.1; Male

1.6; Male

Dead

Alive

Whale Beach

02/11/2019

29/11/2019

12:43

10:43

Mako Shark

White Shark

1.8; Male

2.0; Female

Alive

Alive

Manly−Dee Why

     

Manly Beach

19/11/2019

17:15*

Tiger Shark

2.3; Female

Alive

Freshwater Beach

07/11/2019

14:42

White shark

1.7; Female

Alive

Curl Curl Beach

06/11/2019

16:36

Tiger Shark

3.0; Female

Alive

*No trigger. Time is indicative of when the contractor arrived to pick up the gear at the end of the day