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Beche De Mer
(Sea Cucumber - Trepang)

Commercial Fishing for Blue Eye Trevalla | Blue Eye Cod:

The Blue-eye Trevalla is a benthic species that is found on rocky seabeds in continental slope depths. Juveniles tend to be around the midwater to surface level.

Blue eye mainly feed on the tunicate Pyrosoma atlantica. However they will feed on a range of fish, molluscs, squid and crustaceans, they are also cannibalistic.

Spawning appears to occur in an area north east of Tasmania during March and April.

Little is known about the egg and larval stages of blue eye. Recently Antarctic butterfish of approximately 10 cm have been found living in association with large masses of floating kelp. It is believed that as these juveniles reach 50 cm they become semi-bottom dwelling.

These young fish form schools over hard bottom at depths of around 350–450 m, moving to deeper waters as they grow.

In life, this species is bluish grey above, grading to grey below. The fins are a dark metallic grey.

Size range
It grows to 1.4 m in length and a weight of 36 kg.

Distribution
It occurs circum-globally in southern temperate marine waters.

In Australia it is known from off south-western Western Australia and off southern Queensland to the central coast of Victoria and Tasmania.

Hook Fishing
Unlike many other methods of fishing, this method depends on the fish seeking out prey and not just moving or forming schools. One of the most common hook fishing methods used in Victoria is longlining. The basic method is to set out a long length of fishing line, often several kilometres long, to which short lengths of line carrying baited hooks are attached. The longlines are hauled up periodically.

The gear is often set on the bottom where it is held by anchors. The start and finish of the long-line is marked with buoys and flags. Longlining is used to catch snapper, school shark and gummy shark. A longline set below the surface is used where the target species is pelagic. The line is suspended at the required depth by using regularly spaced buoys along the longline. This method is catching tuna off the eastern Victorian coast. A variation of hook fishing is droplining in which a longline is suspended vertically. This method is used in the blue-eye trevalla fishery.

Size range
It grows to 1.4 m in length and a weight of 36 kg.
Distribution
It occurs circumglobally in southern temperate marine waters.

In Australia it is known from off south-western Western Australia and off southern Queensland to the central coast of Victoria and Tasmania.

Many common names have been used for this species. These include the Big Eye, Big-eye Trevalla, Blue-eye, Blue-eye Cod, Blue-nose, Bluenose Warehou, Bonita, Bream Trevalla, Deep-sea Trevalla, Griffin's Silverfish, Sea Trevally, Stoney-eye and Trevalla, Antarctic butterfish, deepsea trevally, blue eye trevalla, bluenose sea bass, or deep sea trevalla,

The Blue-eye Trevalla is sometimes caught by long line and trawlers. It is an excellent eating fish.

Recovery rate from skinless fillets (wing off): 55% from whole (gilled and gutted), Skinless fillets (wing off): 80% from trunks

Imports
Imported from New Zealand, mostly chilled, and, in smaller quantities, frozen.

 

Scientific Name	Hyperoglyphe antarctica
Location	NSW, VIC, TAS, SA, sth WA
Season	All year round
Size	To 50kg
Australian Species Code	37 445001
Taste, Texture	Mild, pleasant taste.  Large flakes, firm to medium texture.

See Also:
Blue Eye Trevalla | Blue Eye Cod (Hyperoglyphe antarctica) Photographs and Information
Cooking Blue Eye Trevalla | Recipes for Blue Eye Cod
Commercial Fishery for Blue Eye Trevalla | Blue Eye Cod (Hyperoglyphe antarctica)