Real Bastard Trumpeter

Mendosoma Lineatum
Real Bastard Trumpeter - Marinewise © 2025 MarineWise

Quick Facts

Scientific name Mendosoma Lineatum
Other names Common Trumpeter, Telescope Fish
Size Up to 40 cm (15.74 in)
Weight Up to 1.5 kg (3.3 lb)

Distribution

Habitat & AU Distribution Coastal waters, large tidal pools, rocky reef edges & surge channels
Depth Range Up to 20 m (66 ft)
Real Bastard Trumpeter Distribution

Interesting Info

  • The Real Bastard Trumpeter is a slender, silvery-green fish with narrow brown lines running along its sides.
  • In Australia it is found mainly around eastern and southern Tasmania, schooling over shallow rocky reefs and surge channels.
  • Worldwide it occurs in New Zealand, Chile, Gough Island, and the subantarctic St Paul and Amsterdam Islands.
  • It grows to about 40 cm (16 in) in length, making it much smaller than true trumpeters like the Striped Trumpeter.
  • Juveniles gather in tide pools and kelp beds, while adults form schools over exposed reefs and steep drop-offs.
  • They live in shallow waters from the surface down to about 20 m (66 ft), where wave surge brings in plankton.
  • Real Bastard Trumpeters feed on plankton, projecting their mouth forward like a tube to suck in tiny prey.
  • Fast and agile, they swim in tight schools that flash silver and green in the surf zone.
  • They have even been seen hiding inside drifting salps, barrel-shaped jelly-like animals that float in the ocean and filter tiny plankton from the water.
  • Unlike their deep-water relatives, they grow fairly quickly and mature within just a few years.
  • Their lifespan is shorter than true trumpeters—estimated at around 8–12 years.
  • Predators include larger reef fishes, fur seals, and seabirds that strike when they school near the surface.
  • Although edible, their flesh is soft and considered lower quality compared to the prized Striped Trumpeter.
  • They are common and resilient, not targeted by major fisheries, and currently listed as Least Concern.
  • By feeding mid-water on plankton, they help transfer energy from drifting ocean life to coastal reef ecosystems.
Species Interaction

Snorkelling & Diving, Recreational Fishing

Schools of Real Bastard Trumpeters are a familiar sight to snorkellers and divers around Tasmania and Victoria, especially near rocky reefs, headlands, and jetties. While not targeted by anglers, they are often caught as by-catch when fishing for other reef species. Their schooling behaviour means multiple fish are often hooked in quick succession.

Scientific Classification

Kingdom: Animalia

Phylum: Chordata

Class: Actinopterygii

Order: Perciformes

Family: Latridae

Genus: Mendosoma

Species: Mendosoma Lineatum

Conservation Status

The Real Bastard Trumpeter is listed as Least Concern and is considered abundant across its range in Australia and New Zealand. It faces no targeted fishing pressure, though habitat health remains important for its long-term stability.

Fish Taste Quality

Real Bastard Trumpeter is edible but not considered a premium eating fish in Australia. Flesh is soft and not highly valued compared to true trumpeters or striped trumpeters. In New Zealand, however, they are sometimes eaten fresh.

Taste Rating: 2/5

How to catch
Real Bastard Trumpeter

Catch Difficulty: Easy

Tackle: Patternoster Rig, Running Sinker Rig

Bait: Fresh cut flesh baits, Lures, Pilchards, Prawns, Squid

Technique: Keep bait close to the reef/structure, Keep bait close to structure

Popularity: Popular

Recreational Viewing
- Snorkeling & Scuba

Finding: Easy

Temperament: Peaceful

Location: Inner Reef, Outer Reef

Danger: None