Scalefish Striped Trumpeter

Striped Trumpeter
Latris lineata

Illustration©R.Swainston/anima.fish

2019/20 Assessment Summary

STOCK STATUS
DEPLETED


Summary
Following first records of young fish in biological samples in the last two seasons, clear evidence of population recovery of Striped Trumpeter is still lacking. In 2019/20, reference points for low commercial catch, high recreational catch, and a high proportion of recreational catch were triggered. Commercial catches are close to the historical low, but total levels of fishing pressure (commercial and recreational combined) could still be too high to allow for recovery, especially since the minimum size limit is below the estimated size at maturity. More data are needed to clarify population status and trends.


Importance
Key


Stock
Tasmanian Scalefish Fishery and Commonwealth Fisheries


Indicators
Catch, effort and CPUE trends


Managing Jurisdiction
Commonwealth


Background

Striped Trumpeter has a long history of commercial exploitation in Tasmania being highly valued as a food fish. There is also a high level of interest in the species from recreational fishers and charter boat operators. The species is taken by a variety of fishing gears with handline and dropline representing the primary methods. Juvenile Striped Trumpeter are occasionally taken in gillnets in inshore waters and usually in depths <50 m, whereas adult fish are taken in deeper offshore waters by line methods and as by-product in large mesh gillnets (shark nets). Historically, catches have been concentrated off the east coast, including Flinders Island, as well as off the south and southwest coasts of Tasmania (André et al. 2015).

Responsibility for the management of Striped Trumpeter was passed to Tasmania in 1996 through an Offshore Constitutional Settlement (OCS) arrangement with the Commonwealth. A memorandum of understanding (MoU) accompanied the OCS, specifying trip limits for Commonwealth only fishers. As part of the Tasmanian Scalefish Fishery management plan, gear restrictions for all commercial scalefish fishers operating in state waters were introduced in 1998. This, however, enabled dual licensed operators (i.e. holders of a Tasmanian licence and a Commonwealth permit for Southern Shark or South East Non-Trawl fisheries) as well as rock lobster fishers to take unrestricted quantities of Striped Trumpeter in offshore waters using their gear allocations. In 2000, the Tasmanian Government introduced a combined trip limit of 250 kg for Striped Trumpeter, Yellowtail Kingfish and Snapper for all fishers (Commonwealth and state) in all waters to limit the potential for expansion of effort directed at these species. Over time, there have been additional management measures targeted at the species, including a spawning closure, a decrease in the recreational possession limit, introduction of a recreational boat limit and several increases in the minimum size limit for the species (currently 55 cm total length (TL), which is still below the size at maturity of 62 cm TL for females and 61 cm TL for males). Additionally, in 2013, the Commonwealth reduced their Striped Trumpeter trip limit component to 150 kg (it is still a part of the 250 kg combined species trip limit, but only a maximum of 150 kg can comprise Striped Trumpeter) year round.

The full 2019/20 Scalefish Assessment can be found at the link: