Fish Facts: Blue threadfin salmon

Salmon (Blue & King)

ANGLERS who have fished the estuaries and inshore regions of Australia’s tropical north for any length of time are likely to have encountered the blue threadfin or Cooktown salmon, Eleutheronema tetradactylum.

Probably best known as being the smaller cousin of the King threadfin Polydactylus macrochir, the blue threadfin is found in many of the same areas that the king threadfin frequent, but is more common and an exciting sportfish in its own right.

Both species of threadfin are members of the family Polynemidae, a group of fishes adapted to life in muddy water. They have small (but functional) eyes, but have also evolved specialised thread-like “free sensory filaments” at the base of each pectoral fin, from which the name “threadfin” arises. The sensory filaments are likely to have taste buds on them and are used to locate their food, enabling them to feed on prawns, crabs, worms and various types of baitfish quite effectively, even when the water is very dirty. Blue threadfin have three or four shorter filaments per fin, while king threadfin have five longer ones.

Blue threadfin spend their whole life cycle in warm shallow coastal waters and tidal rivers, often in very turbid areas around mangroves, muddy bays and river mouths. Blue threadfin are found throughout the Indo Pacific region from northern Australia and PNG as far east as India and Madagascar. In Australia, blue threadfin are protandrous hermaphrodites like barramundi, i.e. in Western Australia they mature first as males in their first year at 20 cm, then change gender into females at two-three years of age around 40cm long, and grow to around 90cm fork length. However, growth rates vary markedly between regions with fish from Keppel Bay, QLD exhibiting the fastest growth (80cm in around seven years) compared to other regions such as Blue Mud By, NT, where a seven-year-old blue threadfin on average is less than 40cm long. .

Karumba Point Sunset Caravan Park Holidays Accommodation Cabins Hotels BeautifulKarumba Point Sunset Caravan Park is the place to stay when visiting Karumba

Situated at the mouth of the Norman River as it heads out to the fishing waters of the Gulf of Carpentaria – you can’t forget such an amazing accommodation any closer to the Outback near to the sea. Karumba Point Sunset Caravan Park staff offers you a style of accommodation that allows for a comfortable and relaxing break away from the hustle and bustle, or is a great place to hang your rod after a hard day’s fishing. All roads leading to Karumba are fully sealed so even if you don’t own a 4 wheel drive, the trip to Karumba will be a comfortable one.

Karumba Point Sunset Caravan Park Accommodation Hotels Holidays Easter CabinsYou just have to cross the road to dip your toes in the waters of the Gulf of Carpentaria. The sunsets over the waters of the Gulf are some of the best anywhere in Australia.

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The growth, the animal and birdlife is sensational. Brolgas, Jackeroos, Cranes, Gannets, Wedge Tail Eagles, Hawks, Pelicans, Parrots, Galahs and White Cockatoos. Kangaroos, wild pigs, free range cattle, wild horses, emus etc, etc. Then to top that off we have fish in abundance just waiting to be caught. Oh, and if you like those buttered prawns (and who don’t) then get some from our shop at real good prices.

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So give our residents hosts, Karumba Point Sunset Caravan Park Staff, a call and they will be only too happy to help with any enquiries you may have.

Wendy on the Keys Another Entertainment karumba point sunset caravan park accommodation cabins hotels fishing birds wild life queensland qld online direct booking book now

karumba point sunset caravan park accommodation cabins hotels fishing birds wild life queensland qld online direct booking book nowBOOK NOW! for January, February and March. You may also do advanced booking for April & May.

Call Now (07) 4745 9277
Fax (07) 4745 9480
E-mail info@sunsetcp.com.au
Website: http://www.sunsetcp.com.au
Map: http://goo.gl/maps/Hmn6l

 

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