Thunnus albacares
Yellowfin Tuna [+]

Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Scombridae
Genus: Thunnus
species: Thunnus albacares
+ITIS +WoRMS +Conservation Status

Description & Behavior

The yellowfin tuna, Thunnus albacares (Bonnaterre, 1788), is a member of the family Scombridae which includes: albacore, bonito, mackerel and tuna. Additional scientific names (synonyms) include: Kishinoella zacalles (Jordan and Evermann, 1926), Neothunnus macropterus (Temminck and Schlegel, 1844), Neothunnus albacares (Bonnaterre, 1788), Neothunnus catalinae (Jordan and Evermann, 1926) and Scomber albacares (Bonnaterre, 1788). Yellowfin tuna reach a total length of 2.08 m and a maximum weight of 200 kg. The average life span is 8 years. They have very long dorsal and anal fins, and moderately long pectoral fins.

Yellowfin tuna are black to dark blue in color with a yellow or silver belly. Their dorsal fin, anal fins and finlets are bright yellow.

Yellowfin tuna are extremely fast swimmers reaching speeds up to 80 kph. They are able to streamline their body for faster swimming by folding their fins into special indentations.

World Range & Habitat

Yellowfin tuna, Thunnus albacares, travel long distances. Migratory patterns have shown distances traveled from the US Pacific Coast to Japan. They are pelagic fish found from 1-250 m deep. They can be found worldwide in tropical and subtropical seas with the exception of the Mediterranean Sea.

Yellowfin are an oceanic species occurring above and below thermoclines. They school primarily by size, either in monospecific or multispecies groups. Larger fish frequently school with dolphins.

» GBIF occurrence data in Google Earth [Requirements | Tips] | Ocean Biogeographic Information System (OBIS) [World Map] | [about]

Feeding Behavior (Ecology)

Yellowfin tuna, Thunnus albacares, feed on fishes, crustaceans and squid.

Life History

The peak spawning period for yellowfin tuna, Thunnus albacares, occurs during summer months; however spawning also occurs throughout the year. Eggs are fertilized externally after mating when they are released into the water.

Comments

Yellowfin tuna are a popular seafood worldwide and are therefore at continual risk of overfishing.

Yellowfin tuna, Thunnus albacares, are listed as Lower Risk/least concer (LR/lc) on the IUCN Red List of Threatened Species:

LOWER RISK (LR) - A taxon is Lower Risk when it has been evaluated, does not satisfy the criteria for any of the categories Critically Endangered, Endangered or Vulnerable. Taxa included in the Lower Risk category can be separated into three subcategories:

1. Conservation Dependent (cd). Taxa which are the focus of a continuing taxon-specific or habitat-specific conservation programme targeted towards the taxon in question, the cessation of which would result in the taxon qualifying for one of the threatened categories above within a period of five years.
2. Near Threatened (nt). Taxa which do not qualify for Conservation Dependent, but which are close to qualifying for Vulnerable.
3. Least Concern (lc). Taxa which do not qualify for Conservation Dependent or Near Threatened.

References & Further Research

BioOne ~ CITES ~ Discover Life ~ GBIF ~ Google Scholar ~ ITIS ~ IUCN RedList ~ MarineBio Network ~ NCBI ~ SCIRIS ~ SIRIS ~ Tree of Life Web Project ~ Wikipedia

Monterey Bay Aquarium: Living Species List

Search the Web for Yellowfin Tuna » ARKive ~ Ask.com ~ Ask Jeeves ~ bing ~ deviantART ~ dmoz ~ Dogpile ~ Google Images ~ MySpace Images ~ OceanFootage ~ Picsearch ~ StumbleUpon ~ Yahoo! Images ~ YouTube

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Citation: Thunnus albacares, Yellowfin Tuna - MarineBio.org. Retrieved , from .

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Thunnus albacares Yellowfin Tuna [+]