Sigmops elongatus
No common name
Collection Details
Specimens
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Stomiiformes
Gonostomatidae (Bristlemouths)
Sigmops
Sigmops elongatus
Description
This species account was compiled from
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Characters
Body shape: elongated. Black in color, slightly silvery laterally; fins dusky and with small black spots; distal portion of pectorals and pelvic fins colorless (Ref. 3991). Dorsal adipose fin present. Branchiostegal rays: 12-13 (Ref. 35800).
Distribution
Worldwide. Mediterranean (Ref. 85016). Eastern Atlantic: scattered records from Iceland (Ref. 4769) south to Cape Verde and Gulf of Guinea; also between 30°S-35°S. Western Atlantic: Gulf of Mexico (Ref. 27768). North Atlantic: 65°-30°N. Indo-Pacific: in tropical and subtropical waters. Eastern Pacific: found in California and Baja California (Ref. 35800), and Chile (Ref. 9068). Indian Ocean, tropical and subtropical waters (Ref. 47377). South China Sea and East China Sea (Ref.74511).
Habitat Associations
Marine. bathypelagic. depth range 25-4740 m.
Biology
Meso- to bathypelagic (Ref. 58302). Occur between 100-200 m and 500-800 m at night and 25-600 m and 1,250-1,500 m during the day (Ref. 4463). Feed on crustaceans and small fishes (Ref. 4769). Photophores develop in fishes over 6-22 mm SL (Ref. 4769). Protandric hermaphrodite, oviparous with planktonic eggs and larvae (Ref. 35800). Minimum depth from Ref. 4463.
Max length: 27.5 cm TL.
Reproductive mode: protandry; fertilization: external; nonguarders. Oviparous (Ref. 35800).
IUCN Red List Status: Least Concern (LC), assessed 2013-05-16. Resilience: Medium (Preliminary K or Fecundity.).
Commercial or Environmental Importance
Fisheries: of no interest.
References
Schaefer, S., R.K. Johnson and J. Badcock (1986) Gonostomatidae. p. 247-253. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin.
Quéro, J.-C., J.C. Njock and M.M. de la Hoz (1990) Gonostomatidae. p. 283-292. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1.
Badcock, J. (1984) Gonostomatidae. p. 284-301. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the north-eastern Atlantic and the Mediterranean. volume 1. UNESCO, Paris.
Watson, W. (1996) Gonostomatidae: bristlemouths. p. 247-267. In H.G. Moser (ed.) The early stages of fishes in the California Current Region. California Cooperative Oceanic Fisheries Investigations (CalCOFI) Atlas No. 33. Allen Press, Inc., Lawrence, Kansas. 1505 p.
Bogutskaya, N.G. (2007) Preliminary assignment of coordinates to type localities in the Catalog of Fishes. Unpublished dbf file.
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