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 reports catch rate of 2.2 fish/fisher/day
- Mackay ranked 3rd in the state for Redthroat Emperor Catch Rates
- Slight increase in Commercial Catch Rates, increasing from 29.8 kg/day (2016) to 35.9 kg/day (2017)
Quality of the Fish
- 2017 Qld Fisheries Boat Ramp Surveys average length of 441mm
- Mackay ranked 2nd in the State for size of Redthroat Emperor (based on Qld Fisheries Boat Ramp Surveys - based on min 100 fish reported)
- 74% of fish reported in 2017 were released
- 70% of fish reported in 2017 were caught by locals
- Mackay ranked 9th in the state in 2017 for the number of fish released
Moderate Take For Consumption Advised
Redthroat Emperor catch rates are among the best for all species off Gladstone and there are no reported issues for the species. This however is relative to current effort. Maintianing the current community harvest attitudes to the species is appropriate to maintaining the health of catch rates over the longer term.
It should be noted that the longest term dataset Yaralla Deep Sea Club indicates that long term catch rates can be variable ranging from 0.6 fish/fisher/day in 2013 to 6.2 in 2003.
- Catch rates should continue to improve in 2018 (+10-+30%)
- Average size of fish is likely to be similar in 2018 (Average 400mm)
- Recruitment is unknown
Heavy harvesting of Redthroat Emporer is not recommended, but a moderate take for consumption is unlikely to adversely affect stocks based on available data.
NOTE: Moderate take means taking what is required for immediate needs.
Qld FIsheries Boat Ramp Surveys
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 regularly report catching Redthroat Emperor with most being returned to the water. Monitoring began in 2017 and continues in 2018.
- Redthroat Emperor was the 7th most commonly reported species in Mackay in 2017
- Average size of fish measured was 441mm in 2017
- Fishers reported an overall catch rate of 2.2 fish/fisher/day
- 74% of fish reported were released
- Peak periods of Redthroat Emperor catches in 2017 were during February and August
Redthroat Emperor are targeted by sportfishers for much the same reason as other groups - take home for a feed. As sportfishers practice catch and release for their key estuary targets, offshore represents the opportunity to bring back a feed of fish for the family.
- Data under review
A detailed snapshot of local Sportfishers / Suntaggers catch data is available:Local Sportfishers
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 Redthroat Emperor in Mackay (O25, O26 and P24, P25 and P26 to X24, X25 and X26) represents 38.2% share of the total statewide catch. Monitoring is ongoing in 2018.
- Commercial Catch rate is up from 29.8kg/fisher/day in 2016 to 35.9kg/fisher/day in 2017
- Number of active licenses has ranged between 29 and 53 over the last decade with 36 licences active in 2017.
- Commercial catch in 2017 was 55.4T, compared to 46.9T in 2016.
Monitoring of Redthroat Emperor Recruitment
No data is available currently on Redthroat Recruitment.
Monitoring of Redthroat Emperor
Data for this assessment has been sourced from:
- Bureau of Meterology
- Queensland Fisheries
- Local Sportfishers / Suntag
Here are links to all the monitoring pages for Redthroat Emperor:
Offshore catch monitoring is more difficult than inshore as each of the monitoring agencies define different boundaries around fishing areas. These boundaries can overlap with other regions. Fishers from Gladstone for example fish offshore from Rockhampton. Commercially Grids included in the assessment: S30,S31,T30,T31,U30,U31,V30,V31,W30,W31,X30,X31 (Gladstone).