Orange Roughy photos and information

Orange Roughy (Hoplostethus atlanticus) Photographs and Information

orangeroughmap1.jpg (4143 bytes)

Scientific Name	Hoplostethus atlanticus
Location	NSW, VIC, QLD, WA, SA, TAS
Season	All year round
Size	To 56 cm, 5 kg
Australian Species Code	37 255009
Taste, Texture	Delicate and mild. Coarse flakes. Med. to firm

Information about Orange Roughy (Hoplostethus atlanticus):

Orange Roughy have a bright reddish orange head and body and their mouth and gill cavities are black. Their head is covered with bony ridges and deep mucus cavities. The dorsal fin has 6 spines (the last one being the longest) and 15-18 rays.

They mainly live in deep, cold (4�-7�C) waters over steel continental middle and lower slopes and oceanic ridges. They have been recorded from as deep as 1809 metres in the north Atlantic Ocean. In Australia they live in waters from 700m to at least 1400m, on the continental shelf slope between Port Stephens in New South Wales and Cape Naturaliste in Western Australia. They are also found on the South Tasman Rise, Cascade Plateau and Lord Howe Rise.

Orange Roughy have been found over both flat bottoms and steep rough grounds, such as pinnacles and canyons.

orangeroughy.jpg (3226 bytes) Adult fish form dense spawning aggregations for several weeks in winter. Orange Roughy are synchronous spawners (that is they shed eggs and sperm into the water at the same time) Orange Roughy produce between 10,000 and 90,000 large eggs (2.0 - 2.5mm in diameter) The eggs are buoyant when fertilised and hatch about 10 - 20 days after fertilisation.

Orange Roughy are believed to be slow growers and natural mortality is probably low. Although a reliable ageing technique is yet to be developed, radiometric ageing techniques suggest that Orange Roughy can live to at least 149 years. Maturity is thought to occur between 20 and 32 years, when the fish are 28-32cm long and weigh between 500 and 800g.

Orange Roughy feed opportunistically on bentho-pelagic and meso-pelagic fish, such as viperfish, lanternfish and whiptails, also on crustaceans, amphipods and mysids. They particularly like jewel squid. Juvenile roughy feed mainly on crustaceans, while mature fish eat predominantly fish and squid. They have moderately high rates of food consumption.

Natural predators of Orange Roughy include Oilfish and large Basketwork Eels.

Colour of Raw Fillet:	Pearly white.
Texture:	Coarse flakes. Medium to firm.
Fat Content:	Medium to high. Oil content high.
Taste:	Delicate to mild.

Nutritional Information
For every 100 grams raw product
for Orange Roughy fillet.

Kilojoules	273 (65 calories)
Cholesterol	58 mg
Sodium	63 mg
Total fat (oil)	4.9 g
Saturated fat	3% of total fat
Monounsaturated fat	96% of total fat
Polyunsaturated fat	1% of total fat
Omega-3, EPA	13 mg
Omega-3, DHA	n/a
Omega-6, AA	n/a

ORANGE ROUGHY RECIPES

Recipes using Orange Roughy

Exporters, Importers & Processors, Wholesale & Agents of Orange Roughy (Hoplostethus atlanticus)

Orange Roughy Fillet

**Orange Roughy (Hoplostethus atlanticus) Photographs and Information**

Information about Orange Roughy (Hoplostethus atlanticus):