Scalefish Bastard Trumpeter MSC RBF

MSC-Risk-Based Framework Status

<60: Fail – High Risk

The bastard trumpeter fishery scored < 60 in the MSC-RBF analysis, failing assessment with high risk of stock damage. The Productivity Susceptibility Analysis indicated bastard trumpeter has low productivity – slow to mature and relatively long-lived, with low fecundity. The stock showed high susceptibility to capture and damage by the fishery. The Tasmanian bastard trumpeter fishery is based almost entirely on juvenile fish, caught inshore using gillnets where they inhabit shallow reefs until 4 – 5 years old before moving offshore into deeper waters (< 160 m). In addition, fishing effort overlaps with > 30% of stock distribution. The Consequence Analysis indicated bastard trumpeter is a fully exploited species in Tasmania, with fail scores in every subcomponent of the assessment. A decline in CPUE culminating in a record low catch in 2018-19 suggests substantial stock and recruitment damage.

Productivity Attributes

AttributeScore
Average age at maturity2
Average maximum age2
Fecundity3
Average maximum size1
Average size at maturity2
Reproductive strategy1
Trophic level3

Susceptibility Attributes

AttributeScore
Availability3
Encounterability3
Selectivity3
Post-capture mortality3

Consequence Analysis

Vulnerable Subcomponent(s)Score
All<60 – Fail

More information on the Marine Stewardship Council Risk-Based Framework (MSC-RBF) Methodology is available on our MSC-RBF Assessment page.