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In 2018, 1.5 million salmon are in the middle of a year-long trial at Ocean Farm 1 off the coast of Norway. The semi-submersible US$300 million project is the world's first deep-sea aquaculture project, and includes 61-meter (200 ft)-high by 91-meter (300 ft)-diameter pen made from a series of mesh-wire frames and nets.
A biofilter and CO 2 degasser on an outdoor recirculating aquaculture system used to grow largemouth bass Water treatment processes needed in a recirculating aquaculture system. A series of treatment processes is utilized to maintain water quality in intensive fish farming operations. These steps are often done in order or sometimes in tandem.
Reported sizes in the literature have ranged as high as 2.4 m (7 ft 10 in) in length and 200 kg (440 lb) in weight. The all-tackle International Game Fish Association (IGFA) record for this species stands at 193.68 kg (427.0 lb) for a yellowfin caught in 2012 off Cabo San Lucas, Mexico. The fisherman received a prize of $1 million once the ...
The southern bluefin tuna (Thunnus maccoyii) is a tuna of the family Scombridae found in open southern Hemisphere waters of all the world's oceans mainly between 30°S and 50°S, to nearly 60°S. At up to 2.5 metres (8 ft 2 in) and weighing up to 260 kilograms (570 lb), it is among the larger bony fishes.
The cobia is a pelagic spawner, releasing many tiny (1.2 mm), buoyant eggs into the water, where they become part of the plankton. The eggs float freely with the currents until hatching. The larvae are also planktonic, being more or less helpless during their first week until the eyes and mouths develop.
Sexual maturity is generally attained between 2 and 4 years, [5] but can be as late as 8 years in the northeast Arctic. [6] The Atlantic cod can change colour at certain water depths, and has two distinct colour phases: grey-green and reddish brown. Colouring is brown to green with spots on the dorsal side, shading to silver ventrally. A ...
They grow as large as 18 in (450 mm) and weigh 3 to 4 lb (2 kg), but they average 1/2 - 1 lb (0.5 kg). In the Middle Atlantic Bight, scup spawn along the inner continental shelf. Their larvae end up in inshore waters, along the coast and in estuarine areas. At 2 to 3 years of age, they mature. Scup winter along the mid and outer continental shelf.
Opahs are deeply keeled, compressed, discoid fish with conspicuous coloration: the body is a deep red-orange grading to rosy on the belly, with white spots covering the flanks. Both the median and paired fins are a bright vermilion. The large eyes stand out, as well, ringed with golden yellow.