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Beche De Mer
(Sea Cucumber - Trepang)

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.

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,

Hyperoglyphe antarctica, is a medusafish of the family Centrolophidae found in all the southern oceans, at depths of between 40 and 1,500 m. Its length is up to about 140 cm, with a maximum published weight of 60 kg.

The Blue-eye Trevalla is a stout bodied fish with a blunt snout and small scales. It has two dorsal fins. The first has short, stout spines, and is joined by membrane to the base of the second dorsal fin, which is higher and longer based. The pectoral fins are falcate and the caudal fin is forked. The head has many small pores.

Blue Eye Cod have a dark blue body above and lighter blue below with large eyes (another name for this fish is big eye). Larger individuals have a bronze sheen along the flanks.

They can grow to 1.4 m in length and over 50 kg in weight. Studies have shown that fish between 62 and 72 cm are mature and range in age between 8–12 years respectively. Mature females can produce between 2 million and 11 million eggs prior to spawning.

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 buttefish 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.

Cooking Blue Eye Trevalla | Blue Eye Cod:

Blue Eye Trevalla is available all year, but most abundant during summer (in SA) and autumn (in Tasmania). Average 3kg and 60cm, but commonly much larger reaching up to 50kg and 140cm. High priced in southern states where it is very popular, medium priced in northern states where it is less well known. Blue Eye Cod is usually sold as fillets, cutlets or steaks. In whole fish look for lustrous skin, firm flesh, and a pleasant, fresh sea smell. In cutlets, steaks and fillets, look for white to pale pink, firm, lustrous, moist flesh without any brown markings or oozing water and with a pleasant fresh sea smell. You can Steam, poach, deep-fry, pan-fry, bake, grill, barbecue, raw (sashimi) Blue Eye Trevalla. Easy fish recipes from How to Cook Fish, Nutritional information, microwave cooking times for fish.

• Read more about Cooking Blue Eye Trevalla | Recipes for Blue Eye Cod

The Blue-eye Trevalla is a benthic species that is found on rocky sea beds in continental slope depths. Juveniles tend to be around the midwater to surface level. The Blue-eye Trevalla is sometimes caught by long line and trawlers. It is an excellent eating fish. Blue Eye Trevalla is also imported from New Zealand, mostly chilled, and, in smaller quantities, frozen. Buyers and sellers of Blue Eye Trevalla are listed.

• Read more about Commercial Fishery for Blue Eye Trevalla | Blue Eye Cod (Hyperoglyphe antarctica)