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Overview

Distribution

Cosmopolitan in tropical through temperate seas (including western Baltic Sea, North Sea, Mediterranean Sea, Black Sea, Mascarenes, Hawaiian Islands), but except Eastern Pacific.
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Physical Description

Size

Maximum size: 500 mm FL
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Ecology

Habitat

Depth range based on 2 specimens in 1 taxon.
Water temperature and chemistry ranges based on 2 samples.

Environmental ranges
  Depth range (m): 700 - 1537
  Temperature range (°C): 3.728 - 5.546
  Nitrate (umol/L): 18.180 - 19.115
  Salinity (PPS): 34.955 - 35.017
  Oxygen (ml/l): 5.105 - 6.318
  Phosphate (umol/l): 1.184 - 1.215
  Silicate (umol/l): 12.504 - 13.033

Graphical representation

Depth range (m): 700 - 1537

Temperature range (°C): 3.728 - 5.546

Nitrate (umol/L): 18.180 - 19.115

Salinity (PPS): 34.955 - 35.017

Oxygen (ml/l): 5.105 - 6.318

Phosphate (umol/l): 1.184 - 1.215

Silicate (umol/l): 12.504 - 13.033
 
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Auxis rochei rochei

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 8
Species With Barcodes: 1
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Wikipedia

Bullet tuna

The bullet tuna, Auxis rochei rochei, is a subspecies of tuna, in the family Scombridae, found circumglobally in tropical oceans in open surface waters to depths of 50m (164 ft). Its maximum length is 50.0 cm.

Sometimes called bullet mackerel, the bullet tuna is a comparatively small and slender tuna. It has a triangular first dorsal fin, widely separated from the second dorsal fin, which, like the anal and pectoral fins, is relatively small. There are the usual finlets of the tuna. There is a small corselet of small scales around the pectoral region of the body.

Bullet tunas are blue-black on the back with a pattern of zig-zag dark markings on the upper hind body, and silver below. The fins are dark grey.

They feed on small fish, squid, planktonic crustaceans, and stomatopod larvae.

References[edit]

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