Login | Request Account (DAF staff only)

Stock assessment of the Queensland east coast redthroat emperor (Lethrinus miniatus)

Northrop, A. and Campbell, A. B. (2020) Stock assessment of the Queensland east coast redthroat emperor (Lethrinus miniatus). Technical Report. State of Queensland, Brisbane.

[img]
Preview
PDF
2MB

Abstract

Queensland’s redthroat emperor (Lethrinus miniatus) is a line caught fish forming a single population (stock) on the Queensland east coast. Redthroat emperor are protogynous hermaphrodites (born female, many later changing sex to male). They can grow to 3 kg and 20 years of age.

This assessment builds on a previous assessment that estimated the stock was at 70% of unfished biomass in 2004. This stock assessment includes updates to the input data and methods. This stock assessment used a age structured population model with a yearly time step and length based selectivity. The annual data inputs included total fish harvest, standardised catch rates, length structures and conditional age at length data. The model used data from the anticipated start of fishing in 1945 to 2019.

In 2019, the stock level was estimated to be 72% unfished biomass and at healthy levels.

Item Type:Monograph (Technical Report)
Corporate Creators:Department of Agriculture and Fisheries, Queensland
Business groups:Fisheries Queensland
Keywords:redthroat emperor, stock assessment, Queensland, fisheries, biomass
Subjects:Science > Statistics > Statistical data analysis
Science > Statistics > Mathematical statistics
Science > Statistics > Simulation modelling
Aquaculture and Fisheries > Fisheries
Aquaculture and Fisheries > Fisheries > Fishery resources
Aquaculture and Fisheries > Fisheries > Fishery for individual species
Deposited On:16 Sep 2020 02:55
Last Modified:16 Sep 2020 02:55

Repository Staff Only: item control page

Downloads

Downloads per month over past year

View more statistics