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Zebra Pleco
The Atlantic bluefin tuna (Thunnus thynnus) is a highly migratory, large pelagic fish renowned for its size, speed, and commercial value. It plays a crucial role in the marine ecosystem and has been a prized food source for centuries. This magnificent species faces significant conservation challenges.
10 15 years
Lifespan
8 - 10 cm
Length
Endangered
Conservation Status
null km/h
Swimming speed
Omnivorous, Detritivorous
Diet
Local Migration
Migration
Appearance Overview
The Atlantic bluefin tuna is renowned for its large, streamlined body, built for speed and endurance.
Coloration
Dark metallic blue on the dorsal side, transitioning to a silvery white on the underside.
Fins
Two dorsal fins, the first being depressible; short pectoral fins.
Body Shape
Torpedo-shaped, with a robust and muscular build.
Length
Up to 13 feet (4 meters), commonly around 6.5 feet (2 meters).
Weight
Up to 2,000 lbs (900 kg), commonly around 550 lbs (250 kg).
Diet
Carnivorous, feeding on a variety of fish, squid, crustaceans, and occasionally on zooplankton and other invertebrates.
Feeding Behavior
Highly active predator, using its speed and agility to hunt. Often feeds cooperatively, herding prey fish into tighter formations.
Social Behavior
Forms large schools, particularly during migration and spawning. Schools may segregate by size.
Commercial Relevance
Extremely high value, especially in sushi and sashimi markets. One of the most expensive fish in the world.
Conservation measures
Subject to strict international fishing quotas, monitoring programs, and efforts to combat illegal fishing. Marine protected areas also play a role.
Status
Varies by population; the Western Atlantic stock is considered endangered, while the Eastern Atlantic and Mediterranean stock is considered near threatened.
Threats
Historically heavily overfished, particularly due to demand for sushi. Climate change and habitat degradation also pose threats.
Habitat Distribution
Depth Range
Typically found from the surface to depths of 1,600 feet (500 meters), but can dive deeper.
Geographic Range
Found throughout the North Atlantic Ocean and the Mediterranean Sea. Two main populations exist: Western Atlantic and Eastern Atlantic/Mediterranean.
Preferred Environment
Prefers temperate and subtropical waters. Undertakes long migrations across the Atlantic for feeding and spawning.
Reproduction and Life Cycle
Breeding Habits
Spawns in specific areas, with the Western Atlantic population spawning in the Gulf of Mexico and the Eastern population in the Mediterranean Sea.
Development Stages
Eggs are pelagic and hatch into larvae that feed on plankton. Juveniles grow rapidly, eventually becoming apex predators.
Fecundity
Highly fecund; a single female can release up to 30 million eggs per spawning season.
Maturity Age
Reaches sexual maturity at different ages depending on the population; Western Atlantic stock matures around 8-12 years, while the Eastern stock matures earlier, around 4-5 years.
Faqs about Zebra Pleco
How long do Atlantic bluefin tuna live?
Atlantic bluefin tuna can live up to 40 years, although this is rare due to fishing pressure.
How fast can Atlantic bluefin tuna swim?
They are among the fastest fish in the ocean, capable of bursts of speed up to 43 mph (70 km/h).
Are Atlantic bluefin tuna warm-blooded?
Yes, they are warm-blooded, which allows them to maintain a higher body temperature than the surrounding water, aiding in muscle efficiency.
Where are Atlantic bluefin tuna found?
They are primarily found in the Atlantic Ocean, including the Mediterranean Sea.
What is the biggest threat to Atlantic Bluefin Tuna?
Overfishing, driven by high market demand, is the primary threat.
What are the predators of the Bluefin Tuna?
They are apex predators with few natural predators, sharks and orcas may prey on them.
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