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🌊 Marine Near Threatened 🎣 Game Fish 🌡️ Subtropical 🎣 Game Fish

Pacific bluefin tuna

Thunnus orientalis Temminck & Schlegel, 1844
Max Length
300 cm
Max Weight
450.0 kg
Lifespan
15 yrs
Trophic Level
4.5
Depth
1–550 m
Climate
Subtropical
Resilience
Medium
Vulnerability
76.00/100
Typical Length
200 cm
Depth Zone
pelagic

📖 Overview

Epipelagic, usually oceanic, but seasonally coming close to shore . Tolerates ample temperature intervals . Forms schools by size, sometimes with other scombrids . Migrates between June and September in a northward direction along the coast of Baja California, Mexico and California . A voracious predator that feeds on a wide variety of small schooling fishes and squids, also on crabs crabs and to a lesser degree on sessile organisms . Marketed fresh and frozen.

Scientific Name
Thunnus orientalis
Authority
Temminck & Schlegel, 1844
Habitat
Marine
Climate
Subtropical
Body Shape
Fusiform / normal
IUCN Status
NT
Max Length
300 cm
Max Weight
450 kg
Lifespan
15 years
Depth Range
1–550 m
Latitude
52°S – 61°N
Trophic Level
4.5
Resilience
Medium
Vulnerability
76.00/100
Migration
Oceanodromous
Salinity
30–40 ppt

🐟 Physical Description

Mean number of gill rakers 35.9. First ventrally directed parapophysis on vertebra number 8. Dorsal wall of body cavity has a narrow bulge with lateral concavity and wide lateral trough. Caudal keels dark.: fusiform / normal.

🌀 Behaviour

Behavioural data for Pacific bluefin tuna is currently being reviewed.

🦐 Diet

Diet information for Pacific bluefin tuna is currently being compiled.

🥚 Reproduction

Reproduction data for Pacific bluefin tuna is currently being compiled.

🌍 Habitat & Distribution

Marine; brackish; pelagic-oceanic; oceanodromous ; depth range 1 - 550 m . Subtropical; 61°N - 52°S, 99°E - 70°W North Pacific: Gulf of Alaska to southern California and Baja California and from Sakhalin Island in the southern Sea of Okhotsk south to northern Philippines.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish 🐟 Pelagic
Migration
Oceanodromous
Trophic Level
4.5±0.3
🐠 Schooling
Food Items

a wide variety of small schooling fishes and squids, also on crabs crabs and to a lesser degree on s

📐 Morphometrics

Length–Weight Relationship: W = 0.01349 × L3.03 (TL)
Max TL
300cm
Max FL
200cm
Max Weight
450,000g

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2021

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
76.00/100
Very High vulnerability
Trophic Level
4.5
Apex / Top predator
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Latitude Range
61°N – 52°S
Described By
Temminck & Schlegel, 1844

👥 Community & Contribute

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