English
Molly
The Atlantic bluefin tuna (Thunnus thynnus) is a highly migratory, large pelagic fish known for its incredible speed, size, and commercial value. As one of the largest bony fish, it plays a crucial role in the marine ecosystem. This species has been prized for centuries, particularly in Japanese cuisine.
3 5 years
Lifespan
3 - 12 cm
Length
Least Concern
Conservation Status
8 km/h
Swimming speed
Omnivorous, Detritivorous, Herbivorous
Diet
Local Migration
Migration
Appearance Overview
The Atlantic bluefin tuna is renowned for its large, streamlined body, built for speed and endurance.
Color
Dark metallic blue on top with a silvery underside
Body shape
Torpedo-like, with a conical snout and a crescent-shaped tail
Fins
Two dorsal fins, the first is depressible; small finlets running from dorsal and anal fins to tail
Length
Up to 10 feet (3 meters), commonly 6.5 feet (2 meters)
Weight
Up to 1,500 lbs (680 kg), commonly 550 lbs (250 kg)
Diet
Carnivorous, feeding on a variety of fish, squid, crustaceans, and eels.
Feeding Behavior
Highly active predator, uses speed to chase down prey. They are also known to feed cooperatively, corralling small fish into tight balls before attacking.
Social Behavior
Forms large schools, especially during spawning season. They are highly migratory, capable of crossing entire oceans
Commercial Relevance
Extremely high value, especially in sushi and sashimi markets, where a single fish can be sold for thousands or even millions of dollars in auctions in Japan
Conservation measures
International fishing quotas, strict regulations on fishing gear, and marine protected areas. Monitoring and research efforts are ongoing.
Status
Endangered
Threats
Overfishing (historically and still a major threat), bycatch in fishing gear, climate change affecting prey availability and spawning grounds
Habitat Distribution
Depth Range
0-900 meters, but can dive deeper
Geographic Range
North Atlantic Ocean, Mediterranean Sea, and formerly in the Black Sea
Preferred Environment
Temperate and subtropical waters, both inshore and offshore environments
Reproduction and Life Cycle
Breeding Habits
Spawns in warm waters, with two main spawning grounds: the Mediterranean Sea and the Gulf of Mexico. Spawning typically occurs from May to August.
Development Stages
Eggs hatch into larvae, which feed and grow rapidly in plankton-rich waters. Juveniles develop into adults over several years.
Fecundity
Females can produce a large number of eggs, up to 30 million per season, depending on their size and condition.
Maturity Age
Matures at 4-8 years, although this can vary depending on the population and environmental conditions
Faqs about Molly
Where can Atlantic bluefin tuna be found?
Atlantic bluefin tuna are primarily found in the Atlantic Ocean and the Mediterranean Sea.
How far do Atlantic bluefin tuna migrate?
They are highly migratory and can travel thousands of miles in a year.
Why are bluefin tuna so fast?
Their streamlined, torpedo-shaped body and powerful tail fin allow them to swim at high speeds.
Are Atlantic bluefin tuna warm-blooded?
Yes, they are warm-blooded, which is rare among fish. This allows them to maintain a higher body temperature than the surrounding water.
How deep can Atlantic bluefin tuna dive?
They can dive to depths of over 3,000 feet (900 meters).
When do Atlantic bluefin tuna reach maturity?
They typically reach sexual maturity between 4-8 years of age.
What is the biggest threat to Atlantic bluefin tuna?
The biggest threat is overfishing, driven by high demand for their meat.
How long do Atlantic Bluefin Tuna live?
Their lifespan can be up to 40 years.
What do Atlantic bluefin tuna eat?
They are carnivores eating a wide range of fish, squid, and crustaceans.
NATURE STYLE
Copyright @ Nature Style Limited. All Rights Reserved.