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
- 2017 Boyne Tannum Hookup catch rate was 1.4 fish/fisher/day
- Qld Fisheries Boat Ramp Surveys reports catch rate of 0.7 fish/fisher/day
- Gladstone ranked 4th in the state for Bream Catch Rates
- Slight decline in Commercial Catch Rates, dropping from 4.5kg/day (2015) to 3.2kg/day (2017 Incomplete)
Quality of the Fish
- 2017 Boyne Tannum Hookup average fish size was 278.6mm and 0.43kg in weight.
- 2017 Qld Fisheries Boat Ramp Surveys 280.6mm
- Gladstone Ranked 3rd in the State for size of Bream (based on Qld Fisheries Boat Ramp Surveys - based on min 100 fish reported)
- Average size of fish is higher than professional bream event - ABT Qld Open (275.3mm)
- Average fish sizes are 23-35mm larger than largest fishery in SEQ.
- Yellowfin Bream is the most common species in the Boyne Tannum Hookup Live Weigh in
- 91% of fish reported at Qld Fisheries Boat Ramp surveys
- The high average size indicates pressure on the species is lower than in Southern Regions
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.
Boyne Tannum Hookup
Boyne Tannum Hookup Annual Event
The Boyne Tannum Hookup is the biggest single fishing event in Queensland. Gladstone Sportfishing Club has run a live weigh-in as part of the event since the beginning and over that time 3216 Yellowfin Bream have been weighed in. All fish weighed in are of legal size or above, though trophy bream are few and far between.Boyne Tannum Hookup 2016 Report
- Catch rate at the hookup was 1.04 fish/fisher/day
- Average length of fish at the Live weigh in was 424.6mm
- Average weight of fish at the live weigh in was 1.199kg
Detailed Examination of Size
Over that time the condition of the bream has been consistent, with the fish tending to be increasingly heavier relative to length since 2011. A comparison of Yellowfin and Pikey Bream shows consistently that Pikey Bream are heavier relative to length. A summary of the event and condition of Bream below.
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 Gladstone regularly report catching Bream with most being returned to the water. Monitoring began in 2017 and continues in 2018.
- Yellowfin Bream is the 4th most commonly reported species (after Mud Crabs, RedThroat Emperor and Venus Tuskfish)
- Average size of fish measured was 280.6mm
- Fishers reported an overall catch rate of 0.7 fish per day
- 91% of fish reported are released
- Peak periods of May and June.
Bream as a Sports Species
Yellowfin Bream are a sports species in South East Queensland where the opportunity to compete in the ABT Bream Tournaments is a motivator for fishers to develop bream skills. In Gladstone, Bream is not considered a sports species, catches of bream during the year by Sportsfishers are limited. None the less catches are tracked and if members of the community wish to participated in data collection we would encourage contacting Infofish Australia.
- 2017 Yellowfin Bream catch rate of 0.43 fish/fisher/day
- 2017 Gladstone Sportfishing Club average fish size was 276mm
A detailed snapshot of tagging by the Gladstone Sportfishing Club and Suntaggers 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 Bream in Gladstone (S30,S31) represents 0.75% share of the total statewide catch. Catch is the combined total of Yellowfin and Pikey Bream. Monitoring is ongoing in 2018.
- Commercial Catch rate is down slightly from 4.5kg/fisher/day in 2015 to 3.2kg/fisher/day
- Number of active licenses has been steady at around 10 for a decade
- Commercial catch in 2017 is 0,6T (data incomplete), 1.17T in 2016.
Gladstone Bream Commercial Catch Dashboard
Importance of Bream 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.
Bream are the most common species reported in the Boyne Tannum Hookup and are important to the participation of locals and visitors in the event.
Monitoring of Bream RecruitmentRecruitment is the success rate of juvenile fish surviving past the larval state. Bream Recruitment is monitored by the Gladstone Healthy Harbours Partnership. An extract of the current assessment is included below. A report on the development of the report card is available on the crystal-bowl website Report on development of Bream Report Card.For full details visit the Report Card website :http://ghhp.org.au/report-cards/2017/environmental.
Recruitment plays a key role in a fishery population, and the size distribution of fish gives an indication of bream successfully reaching and surpassing the juvenile stage.
There are no external criteria available to set baseline levels for fish recruitment therefore the scores were constructed with respect to internal criteria, derived objectively from the data itself.
A score of 0.50 equates to a year (season) at the median reference level, indicating no increase or decrease in the catch rate from the long term average. The 2017 score of 0.71 (B) for fish recruitment means that there is an increased catch rate relative to the median reference level. In other words, the model identified that the 2016-2017 season had a higher bream recruitment rate after correcting for a number of important environmental and temporal variables.
Note that variation in juvenile bream catch between years may be partly due to natural population cycles so care should be taken in interpreting results.
The overall harbour grade for the 2016-17 season was a B, which indicates good bream recruitment. This is a marked improvement relative to the 2015-16 season. All zones showed increased recruitment with only three zones reflecting poor-satisfactory recruitment (Graham creek, Boat Creek, Inner Harbour).2017 Technical Report Extract Bream and Crabs
Monitoring of BreamData for this assessment has been sourced from:
- Bureau of Meteorology
- Boyne Tannum Hookup
- Gladstone Sportfishing Club
- Queensland Fisheries
- Gladstone Healthy Harbours Partnership
Here are links to all the monitoring pages for Bream:
- Boyne Tannum Hookup 2016 Report
- 2017 Gladstone Healthy Harbours Report Extract Bream and Crabs
- Boyne Tannum Hookup All Years Length - Weight
- Boyne Tannum Hookup All Years Condition Data
- Gladstone Sportfishing Club
- Gladstone Queensland Fisheries Boat Ramp Surveys
- Gladstone Queensland Fisheries Commercial Data