GLADSTONE REDTHROAT EMPEROR 2018

Redthroat Emperor are a popular food species and are the most commonly targeted offshore species. Most of the offshore activity for reef species around Gladstone is conducted by recreational fishers.

  • Overview

    Overview

    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

     

    Fishing Experience

    • 2017 Yaralla Deep Sea Fishing Club catch rate was 2.7 fish/fisher/day 
    • Qld Fisheries Boat Ramp Surveys reports catch rate of 4.6 fish/fisher/day
    • Gladstone ranked 1st in the state for Redthroat Emperor Catch Rates
    • Slight increase in Commercial Catch Rates, increasing from 6.8 kg/day (2015) to 10.1kg/day (2017 Incomplete)

     

    Quality of the Fish

    • 2017 Qld Fisheries Boat Ramp Surveys 403.2 mm
    • Gladstone Ranked 10th in the State for size of Redthroat Emperor (based on Qld Fisheries Boat Ramp Surveys - based on min 100 fish reported)
    • 2017 Qld Fisheries Boat Ramp Surveys average fish sizes are the smallest for all North Queensland sites.

     

    Community Attitudes

    • Yaralla Deep Sea Fishing Club have been fishing offshore competitions since 1976.  While their fishing effort has declined with membership, catch rates have been steady since 2004, indicating that fishing is not overly impacting the area.
    • 61% of fish reported at Qld Fisheries Boat Ramp surveys
    • Gladstone has the 7th highest rate of released fish in the state.
    • 91% of fishers surveyed were locals.

     

  • Assessment

    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.

    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.

  • Forecast

    Forecast

     

    • 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

     

  • Yaralla Deep Sea Fishing Club

    Yaralla Deep Sea Fishing Club

    Summary

    Catch data were provided by the Yaralla Deep Sea Fishing Club for the period 2002-2017. The Club has mainly fished around the Capricorn-Bunker reefs and shoals to the north involving 2-3 day charter trips. The rezoning of the Great Barrier Reef Marine Park came into effect in 2004 which resulted in a significant increase in “green” no fishing zones and that had an effect on some of the locations fished by the Club.

    • Redthroat Emperor accounted for 45.7% of the Catch in 2017
    • Redthoat Emperor Catch Rate of 2.7 fish/fisher/day in 2017

     

    Read the latest update from Yaralla Sportfishing Club

     

     

  • Capreef

    Capreef

    Summary

    Capreef monitoring comprised surveys conducted between 2006-2009 on the local attitudes and experiences when it comes to the offshore fishing experience.  The baseline established by Capreef provides context for assessments a decade later.

    In examining the recreational catch over the past 3 years Longfin Rockcod was the most caught species (19%) while Coral Trout was the most likely species to be kept (85%) and Grass Emperor was the most numerous kept species. School Mackerel was the most caught species inshore, Longfin Rockcod around the islands, Hussar at the Wide Grounds and Redthroat Emperor on the offshore reefs.

    Changes in size limits in 2004 have reduced the proportion of fish kept to less than 1% for Longfin Rockcod and 16% for Red Emperor while for Red Snapper and Redthroat Emperor over 55% are usually kept.

    Read the Capreef Report

     

     

     

  • 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 Gladstone regularly report catching Redthroat Emperor with most being returned to the water. Monitoring began in 2017 and continues in 2018.

    • Redthroat Emperor is the 2nd most commonly reported species
    • Average size of fish measured was 403.2mm
    • Fishers reported an overall catch rate of 4.6 fish per day
    • 61% of fish reported are released
    • Peak periods of July and August.

     

    Qld Fisheries Boat Ramp Surveys monitoring dashboard

     

  • Sportfishers

    Gladstone Sportfishing Club

    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.

    • Gladstone Sportfishing Club catch rate of TBA fish/fisher/day
    • 2017 Gladstone Sportfishing Club average fish size was TBA mm

     

    • NOTE OFFSHORE DATA IS STILL UNDER REVIEW, UPDATES WILL BE AVAILABLE IN APRIL.

     

    A detailed snapshot of tagging by the Gladstone Sportfishing Club and Suntaggers is available:

    Gladstone Sportfishing Club Results

     

  • Commercial Fishing

    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 Gladstone (S30,S31,T30,T31,U30,U31,V30,V31,W30,W31,X30,X31) represents 0.96% share of the total statewide catch. Monitoring is ongoing in 2018.

    • Commercial Catch rate is up from 6.8kg/fisher/day in 2015 to 10.1kg/fisher/day
    • Number of active licenses has been steady at around 27 for a decade
    • Commercial catch in 2017 is 1.39T (data incomplete), 1.36T in 2016.

     

    Gladstone Redthroat Emperor Commercial Catch Dashboard

     

  • Recruitment

    Monitoring of Redthroat Emperor Recruitment

    No data is available currently on Redthroat Recruitment.

     

  • Monitoring

    Monitoring of Redthroat Emperor

    Data for this assessment has been sourced from:

    • Bureau of Meterology
    • Capreef Report 2009
    • Gladstone Sportfishing Club
    • Yaralla Deep Sea Fishing Club
    • Queensland Fisheries

    Here are links to all the monitoring pages for Redthroat Emporer:

    Boyne Tannum Hookup 2016 Report
    Yaralla Deep Sea Fishing Club 2017 Assessment
    Capreef Report 2009
    Gladstone Sportfishing Club
    Gladstone Queensland Fisheries Boat Ramp Surveys
    Gladstone Queensland Fisheries Commercial Data

  • Fishing Area

    Area Assessed

    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).