About This Fish

Australian Salmon

The Australian Salmon (Arripis trutta) is a medium sized perch like ray-finned fish. It is also known as bay trout, black back, black-backed salmon, buck salmon, cocky salmon, colonial salmon, native salmon and salmon trout. It belongs to the family Arripidae under Order Perciformies of Class Actinopterygii. It is endemic to the Australasian region. It is found along the coastline, rocky headlands, offshore, breakwaters, surf beaches in holes and gutters, large estuaries, throughout the bays of Southern Australia and also found in Lord Howe and Norfolk Islands, the north and south islands of New Zealand and the Kermadec Islands. It is a pelagic fish that travel in schools. It has moderately rounded and elongated body and the dorsal fin is longer than the anal fin with 9 spines and 15-19 soft rays. The caudal fin is homocercal and forked. The back side of it is olive green to steel blue with small dark spots. Ventral side of the body is pale yellow green to silvery. The pectoral fins are pale yellow and other fins are translucent. When it is a juvenile, it is silvery white with several large golden rods or brown spots on the back and sides. The Australian salmon are opportunistic feeders and their foods mainly consist of crustaceans and small fish, pilchards, anchovies, tommy ruff, southern sea garfish and calamari, squid and polychaetes. The Australian salmon is preyed on by whale sharks, white pointer sharks, grey nurse sharks, dolphins and occasionally seals. They are available all the year round with peak supply from January to April. The average body weight and length ranges from 900g-5kg and 40-75cm respectively, though they can grow as large as 10.5kg and 1 meter. Australian Salmon are serial batch spawners which release their eggs in batches over a period of time. They are also known as pelagic spawners as they spawn in the open ocean.

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