What is the average weight of a bluefin tuna

Unfortunately for the species however, bluefin meat also happens to be regarded as surpassingly delicious, particularly among sashimi eaters, and overfishing throughout their range has driven their numbers to critically low levels.

Atlantic bluefins are warm-blooded, a rare trait among fish, and are comfortable in the cold waters off Newfoundland and Iceland, as well as the tropical waters of the Gulf of Mexico and the Mediterranean Sea, where they go each year to spawn. They are among the most ambitiously migratory of all fish, and some tagged specimens have been tracked swimming from North American to European waters several times a year. They are prized among sport fishers for their fight and speed, shooting through the water with their powerful, crescent-shaped tails up to 43 miles per hour.

They can retract their dorsal and pectoral fins into slots to reduce drag. Bluefins attain their enormous size by gorging themselves almost constantly on smaller fish, crustaceans, squid, and eels. They will also filter-feed on zooplankton and other small organisms and have even been observed eating kelp. The largest tuna ever recorded was an Atlantic bluefin caught off Nova Scotia that weighed 1, pounds. Bluefin tuna have been eaten by humans for centuries.

However, in the s, demand and prices for large bluefins soared worldwide, particularly in Japan, and commercial fishing operations found new ways to find and catch these sleek giants. As a result, bluefin stocks, especially of large, breeding-age fish, have plummeted, and international conservation efforts have led to curbs on commercial takes. Nevertheless, at least one group says illegal fishing in Europe has pushed the Atlantic bluefin populations there to the brink of extinction.

All rights reserved. In contrast to many other fish, the body stays rigid while the tail flicks back and forth, increasing stroke efficiency. Bluefin dive to depths of 1, metres fathoms. The Atlantic bluefin tuna typically hunts small fish and invertebrates such as sardines, herring, mackerel, squid and crustaceans. Bluefin Tuna The Atlantic bluefin tuna Thunnus thynnus is a species of tuna in the Scombridae family.

There were some fish over pound caugh View. Tomorrow we fish offshore and should have be View. The real good news is that the southerly View. My friend caught two on Sunday after four days of trying.

His fish were 75 and 80 View. Well as we do on the Toy we rigged up and executed the plan. I can only confirm one. Read on to learn more about the impressive Bluefin tuna and the biggest examples that have appeared throughout history. Statistically, all the species of Bluefin make up some of the largest types of tuna on the planet. They can grow to gargantuan sizes and have made for some intensely prized catches throughout history.

Although these top-end figures are merely estimates, there have been real-world examples of some enormous Bluefin tuna over the years. The record for the biggest bluefin has been secured by one fisherman for over four decades, though. It would have been a struggle to physically catch the fish, but allegedly it took him just forty-five minutes to bring it aboard.

The average weight of a Bluefin Tuna is approximately pounds. Bluefin Tuna can get up to anywhere from 6 feet to 8.

The largest recorded Atlantic Bluefin Tuna was caught in Nova Scotia and was close to 1, pounds in weight. This specific catch took six men over 62 hours to reel in.

Atlantic Bluefin Tuna is known to have dark blue coloring on the top and a grey or shimmering white coloring below.

They also appear to have a gold shimmer to the entire body. These colors assist in camouflaging them in the similarly colored ocean waters. In contrast, their meat is a dark red color. Atlantic Bluefin Tuna have rows of upper and lower needle-like sharp teeth, and their livers are covered in tiny blood vessels.

Atlantic bluefin tuna use a mechanism referred to as countercurrent exchange to keep its core muscles warm and prevent the loss of heat when swimming. They are most unique due to the ability to thermoregulate by transferring warm blood to cool oxygenated blood. Within three to five years, they reach their full size and full sexual maturity.

Satellite tracking systems have proven that spawning groups gather together in large formations and have been observed in the western Mediterranean and the Balearic Islands. Although they span the entire Atlantic Ocean, they are known to return to the same area when spawning. Female Bluefin Tuna have been known to produce up to 30 million eggs.

The amount of eggs they produce depends on their age and size. Male and female Bluefin Tuna release millions of sperm and eggs into one water channel to lessen the possibility of all of the eggs getting eaten by prey.

This also increases the likelihood of the eggs becoming fertilized. Luckily the eggs start to hatch after only 2 days. Bluefin Tuna enjoy both cold water and tropical water.