VU

Redfish

Centroberyx affinis

Declining

Overview

This species is a moderately sized marine fish recognized by its reddish-orange coloration, large eyes, and deep, laterally compressed body—features typical of the family Berycidae. It forms large schools that aggregate over reef edges and rocky substrates during the day, dispersing to feed on zooplankton, small crustaceans, and fish at night. As a schooling mid-trophic species, it serves as an important prey source for larger predatory fish and supports commercial and recreational fisheries throughout its range.

The species occurs in marine neritic and coastal waters across the southwestern Pacific, including Australia, New Zealand, New Caledonia, and Norfolk Island. It is typically found over continental shelf waters, favoring depths associated with reef and rocky habitats where schooling behavior offers protection and access to prey.

The primary threat to this species is habitat shifting and alteration, an ongoing pressure linked to changing oceanographic conditions affecting the shelf habitats it depends on. Shifts in water temperature, currents, and productivity patterns can alter prey availability and disrupt the schooling and spawning behaviors tied to specific habitat conditions, compounding pressure from historical and ongoing fishing activity across its range.

Conservation attention has focused on fisheries management measures, including catch monitoring and stock assessments in Australian waters, where the species has commercial importance. Regional cooperation among range states remains limited but is relevant given the species' distribution across multiple national jurisdictions.

The population is currently in decline, and the species is classified as Vulnerable. Continued habitat alteration, combined with fishing pressure, suggests that stabilization will depend on sustained and effective management of both fisheries and the coastal marine environments this species relies upon.

Redfish are currently facing ongoing changes to their ocean habitat, likely linked to shifting water temperatures and conditions that affect the areas where they live and feed. These changes can disrupt their environment in ways that make survival more challenging over time. This threat is ongoing and appears to be a persistent, continuing pressure rather than one that is decreasing.

Threat summary

Habitat

Marine coastal/supratidal· majorMarine neritic· major

Conservation measures underway

Species recovery

Frequently asked questions

Why is Redfish classified as Vulnerable?
Redfish is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Redfish are currently facing ongoing changes to their ocean habitat, likely linked to shifting water temperatures and conditions that affect the areas where they live and feed. These changes can disrupt their environment in ways that make survival more challenging over time. This threat is ongoing and appears to be a persistent, continuing pressure rather than one that is decreasing.
Where does Redfish live?
Redfish occurs in Australia, New Caledonia, New Zealand, and Norfolk Island. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Redfish?
The main threats to Redfish are 11.1. The full IUCN-classified threat record for this species is detailed on the species page.

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