Sphyraena sphyraena

Sphyraena sphyraena
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Actinopterygii
Order:Scombriformes
Family:Sphyraenidae
Genus:Sphyraena
Species: S. sphyraena
Binomial name
Sphyraena sphyraena
Linnaeus, 1758
Synonyms[2]
  • Esox sphyraena Linnaeus 1758
  • Esox spet Haüy, 1787
  • Sphyraena spet (Haüy, 1787)
  • Sphyraena vulgaris Cuvier, 1829
  • Sphyraena bocagei Osório, 1891

Sphyraena sphyraena, the European barracuda or Mediterranean barracuda, is a ray-finned predatory fish of the Mediterranean basin and the warmer waters of the Atlantic Ocean.

Description

Sphyraena sphyraena has a long, fairly compressed body with a cylindrical cross section[3] which is covered with small, cycloid scales. It has a large mouth with a projecting lower jaw, the jaws are lined with prominent sharp teeth. It is dark above and silvery below and in some freshly caught specimens there is a yellow band running parallel to the lateral line.[4] It has 20 or 22 dark transverse bands on the back which do not reach the flanks. The anterior dorsal fin has 5 spiny rays and the posterior has a single spiny ray and 9 soft rays, it has relatively small pectoral fins and the pelvic fins are directly below the most forward point of the first dorsal fin; The anal fin has a one spiny ray and 9 soft rays.[3] S. sphyraena has scales covering both the anterior and posterior margins of the preoperculum, whereas in Sphyraena viridensis both margins have no scales.[5] They are normally around 30–60 cm in length and weigh 6 kg but there are records of fish 165 cm long and reaching weights of 12 kg or more.[6] It is the largest species of barracuda in the Mediterranean.[7]

Distribution

In the Eastern Atlantic Sphyraena sphyraena is found from the Bay of Biscay in the north through the Canary Islands and the Azores to Mossamedes, Angola in the south and is found off Bermuda and Brazil in the western Atlantic. It is also found throughout the Mediterranean Sea and the Black Sea.[4] It has been found as far north as Cornwall in the United Kingdom.[8]

Ecology

Sphyraena sphyraena is normally a pelagic species found high in the water column, but smaller fish often found near bottom of the water column. The main food is other fish but sometimes includes cephalopods and crustaceans. They are a social species and large groups of Sphyraena sphyraena numbering between ten and two hundred have been recorded.[9] Reproduction occurs between May and August and the female can lay up to 300,000 eggs.[7] The copepod Bomolochus unicirrus is known to be an ectoparasite of S. sphyraena.[10]

Fisheries

It is caught in some quantities by commercial fisheries and it is an important game fish.[4] A decline in mean size and in the range of sizes caught has been noted in the eastern and southern Mediterranean and this may be an indication of over exploitation. Juvenile S.sphyraena are taken as bycatch in fisheries small forage fish, such as sardines and anchovies, while the rather sedentary adults are vulnerable to other fishing pressures, including spearfishing.[1]

Barracuda

References

  1. 1 2 de Morais, L.; Smith-Vaniz, W.F.; Kara, M.; et al. (2015). "Sphyraena sphyraena". The IUCN Red List of Threatened Species. 2015: e.T198565A15596165. Retrieved 29 April 2018.
  2. ↑ "Synonyms of Sphyraena sphyraena (Linnaeus, 1758)". fishbase.org.
  3. 1 2 "Sphyraena sphyraena (Linnaeus, 1758) (in Spanish)". Asturnatura.com. Retrieved 14 January 2017.
  4. 1 2 3 "Marine Species Identification Portal : Barracuda - Sphyraena sphyraena". species-identification.org.
  5. ↑ Jakov Dulĉić; Alen Soldo (2004). "On the occurrence of the Yellowmouth Barracuda Sphraena viridensis Cuvier 1829 (Pisces: Shyraenidae) in the Adriatic Sea" (PDF). Annales, Series Historia Naturalis. 14 (2): 225–227.
  6. ↑ Site designed, built & maintained Peter Paccagnini for Attention Grabbers Ltd. "Barracuda ( sphyraena sphyraena) - European Federation of Sea Angling Baracuda Records". efsa.co.uk.
  7. 1 2 "Sphyraena sphyraena". Cotebleue.org. Retrieved 14 January 2017.
  8. ↑ http://www.glaucus.org.uk/Barracuda.txt
  9. ↑ "Fuerteventura Fauna - Marine Life". fuerteventura.com.
  10. ↑ G. Boxshall (2015). "Bomolochus unicirrus Brian, 1902". World Register of Marine Species. Retrieved 17 January 2017.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.