Crystal Bowl GBR is aiming to examine 3 core measures across a wide range of species in the region:
- Fishing experience (how many fish per trip)
- Quality of the fish (size of fish)
- Community attitudes (number of legal size fish kept or released)
- Qld Fisheries Boat Ramp Surveys reported a catch rate of 0.14 fish/fisher/day
- Mackay ranked 5th in the state for King Threadfin Catch Rates
- Sportfishers have a catch rate of 0.4 fish/fisher/day in 201, so far
Quality of the Fish
- 2017 Qld Fisheries Boat Ramp Surveys reported an average length of 726mm in 2017
- Mackay ranked 5th in the State for size of King Threadfin however, due to a small sample being reported (<40 fish), this ranking is unreliable
- 67% of legal size fish reported by recreational fishers in the 2017 Qld Fisheries Boat Ramp Surveys were kept
- Mackay ranked 7th across the state for the number of fish released
Moderate Take For Consumption Advised
- Boyne Tannum hookup catch rate between 1.2 and 1.6 fish/fisher/day
- 95% of Yellowfin Bream in the Boyne Tannum Hookup will be between 270 and 290mm
- Recruitment is likely to be moderate
Heavy harvesting of Bream is not recommended, but a moderate take for consumption is unlikely to adversely affect stocks based on available data. Evidence from the Qld Fisheries boat ramp surveys suggests that most fish are released but with only a single year of data, this will need to be assessed as additional data is collected.
NOTE: Moderate take means taking what is required for immediate needs.
Qld FIsheries Boat Ramp Surveys - General Fishers
Monitoring of Recreational Catch by Qld Fisheries
Queensland Fisheries monitors boat ramps up and down the coast as a part of the Sustainable Fisheries Strategy. Fishers in Mackay report catching King Threadfin with most being kept. Monitoring began in 2017 and continues in 2018.
- King Threadfin were ranked 29th for species reported in Mackay in 2017
- An average size of 726mm was reported by fishers in 2017
- Fishers reported a catch rate of 0.1 fish/fisher/day in 2017
- 67% of fish reported in 2017 were kept
- Peak periods for King Threadfin catches in 2017 were during February and May
King Threadfin as a Sports Species
King Threadfin are a prized sports species in most locations across Queensland. In Mackay, King Threadfin are targeted mostly by Sportfishers.
- A catch rate of 0.4 fish/fisher/day have been reported for King Threadfin in 2018, so far
- Two King Threadfin in the 701-800mm size range were reported in 2018
A snapshot of Sportsfishers catch data is available:
Commercial Fishing Catch
Queensland Fisheries monitors commercial catches up and down the coast. Commercial fishers are required to maintain logbooks of catch and report quarterly. The commercial catch of King Threadfin in Mackay (see Area Fished section) represented 2.63% of the statewide catch. Monitoring is ongoing in 2018.
- Commercial Catch rates decreased between 2016 and 2017 with 30.6kg/fisher/day and 28.5kg/fisher/day reported, respectively
- Number of active licenses has ranged between 21 and 28 over the last decade with 22 licences active in 2017
- Commercial catch in 2017 was 8.85T, compared to 10.5T in 2016.
Importance of King Threadfin to Tourism
Bream are not specifically a tourism drawcard but along with Whiting and Flathead, they are an important species for any family visitors. Family visitors are more likely to target species that are easier to locate in a short space of time.
Monitoring of King Threadfin Recruitment
King Threadfin recruitment is not currently assessed in Mackay however, any data collected along with Barramundi recruitment surveys will be reported.
Monitoring of King Threadfin
Data for this assessment has been sourced from:
- Bureau of Meteorology
- Queensland Fisheries
- Local Sportfishers and Suntaggers
Here are links to all the monitoring pages for King Threadfin: