Overview

Comprehensive Description

Biology

Inhabits bays and estuaries (Ref. 9768). Found in schools in seagrass beds and rocky reefs (Ref. 9563). Feeds mainly on fishes. Exhibits diurnal behavior. Also caught with set nets (Ref. 9768). Sold fresh, frozen or dried salted in markets.
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Distribution

Red Sea, Indo-West Pacific: East Africa, South Africa, Seychelles, Madagascar and Mascarenes east to Samoa, north to southern Japan and Korea, south to Lord Howe Islands and New Caledonia; possible recent Mediterranean Sea immigrant.
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Indo-Pacific: Red Sea and East Africa to Samoa, north to the Ryukyu Islands, south to Lord Howe Island. Migrated to eastern Mediterranean from the Red Sea via the Suez Canal (Ref. 5385). The exact range is uncertain because of confusion of this species with Sphyraena flavicauda (Ref. 9768).
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Red Sea, Indo-West Pacific: East Africa, South Africa, Seychelles, Madagascar and Mascarenes east to Samoa, north to southern Japan and Korea, south to Lord Howe Islands and New Caledonia; possible recent Mediterranean Sea immigrant.
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Physical Description

Morphology

Dorsal spines (total): 6; Dorsal soft rays (total): 9; Analspines: 2; Analsoft rays: 9
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Size

Maximum size: 550 mm ---
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Max. size

55.0 cm TL (male/unsexed; (Ref. 9563))
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Diagnostic Description

Description

Inhabits bays and estuaries (Ref. 9768). Found in schools in seagrass beds and rocky reefs (Ref. 9563). Feeds mainly on fishes. Exhibits diurnal behavior. Also caught with set nets (Ref. 9768). Sold fresh, frozen or dried salted in markets.
  • Anon. (1996). FishBase 96 [CD-ROM]. ICLARM: Los Baños, Philippines. 1 cd-rom pp.
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Body elongate and subcylindrical with small cycloid scales; head long and pointed. Mouth large and horizontal, the tip of the lower jaw protruding; intermaxilla non-protractile. Preoperculum rectangular, with wide naked skin flap. First dorsal fin origin slightly before the pectoral fin tip, the first spine equal to the second. Pelvic fins well before the tip of the pectoral, closer to the anal than the tip of the lower jaw. Color is generally green above and silvery below.
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Ecology

Habitat

Environment

reef-associated; brackish; marine; depth range 20 - 120 m (Ref. 12260)
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Depth range based on 171 specimens in 1 taxon.
Water temperature and chemistry ranges based on 116 samples.

Environmental ranges
  Depth range (m): 1.1 - 175
  Temperature range (°C): 20.374 - 28.884
  Nitrate (umol/L): 0.000 - 18.483
  Salinity (PPS): 30.220 - 39.733
  Oxygen (ml/l): 1.467 - 4.708
  Phosphate (umol/l): 0.081 - 1.653
  Silicate (umol/l): 0.777 - 17.115

Graphical representation

Depth range (m): 1.1 - 175

Temperature range (°C): 20.374 - 28.884

Nitrate (umol/L): 0.000 - 18.483

Salinity (PPS): 30.220 - 39.733

Oxygen (ml/l): 1.467 - 4.708

Phosphate (umol/l): 0.081 - 1.653

Silicate (umol/l): 0.777 - 17.115
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 20 - 120m.
From 20 to 120 meters.

Habitat: reef-associated. Inhabits bays and estuaries (Ref. 9768). Found in schools in seagrass beds and rocky reefs (Ref. 9563). Feeds mainly on fishes. Exhibits diurnal behavior. Also caught with set nets (Ref. 9768). Sold fresh, frozen or dried salted in markets.
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Trophic Strategy

Inhabits bays and estuaries (Ref. 9768); also coral reefs (Ref. 58534). Found in schools in seagrass beds and rocky reefs (Ref. 9563). Feeds mainly on fishes. Exhibits diurnal behavior. Also caught with set nets (Ref. 9768).
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Sphyraena obtusata

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 3
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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Conservation

Threats

Not Evaluated
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: commercial; gamefish: yes
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Wikipedia

Obtuse barracuda

The obtuse barracuda, Sphyraena obtusata, a barracuda of the family Sphyraenidae, is found in tropical oceans around the world. Its length is up to 55 cm.

References

  • Froese, Rainer, and Daniel Pauly, eds. (2006). "Sphyraena obtusata" in FishBase. May 2006 version.
  • Tony Ayling & Geoffrey Cox, Collins Guide to the Sea Fishes of New Zealand, (William Collins Publishers Ltd, Auckland, New Zealand 1982) ISBN 0-00-216987-8
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