Cyclothone acclinidens
No common name
NS
GNR
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Stomiiformes
Gonostomatidae (Bristlemouths)
Cyclothone
Cyclothone acclinidens
Description
This species account was compiled from
Composite (multiple sources) (McEachran, J.D. and J.D. Fechhelm. Fishes of the Gulf of Mexico. University of Texas Press, Austin.)
and processed using AI-assisted text extraction.
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Characters
Elongate and slender body; large mouth; double row of photophores; premaxillary teeth uniserial and of moderate and equal size; teeth on posterior section of maxilla curved anteriorly; vomer with teeth; pseudobranch absent; gill filaments short and not fused at base; gill rakers on first arch 23-25; branchiostegal rays 13 or 14; dorsal fin opposite anal fin; anterior rays of dorsal and anal fins moderately elongated; dorsal fin rays 13 or 14; anal fin rays 18-20; last dorsal and anal fin rays not split to base; dorsal adipose fin absent; anus midway between pelvic fin base and anal fin origin; specific photophore counts (ORB, OP, BR, IP, PV, VAV, OA, AC); opercular gland poorly developed; supracaudal gland larger than infracaudal gland
Uniform brown
Distribution
New Jersey to the equator, including the Gulf of Mexico and the Caribbean Sea
Habitat Associations
Tropical waters worldwide; depth range 300-1200 m for juveniles and adults, surface to 70 m for larvae
Biology
Copepods
36 mm SL for males, 60 mm SL for females
Oceanic, deep-mesopelagic (Ref. 4769, 58302) and bathypelagic (Ref. 58302). Usually vertically oriented during the day (Ref. 4769). Nocturnal feeder (Ref. 9186) on copepods (Ref. 4769). Oviparous, with planktonic eggs and larvae (Ref. 35800).
Reproductive mode: dioecism; fertilization: external; nonguarders. Oviparous (Ref. 35800).
IUCN Red List Status: Least Concern (LC), assessed 2014-07-01. Resilience: Medium (K=0.8, Fecundity assumed < 1000).
Commercial or Environmental Importance
Fisheries: of no interest.
References
Mukhacheva 1964
Mukhacheva 1980a
Bekker et al. 1975
Badcock 1984a
Schaefer et al. 1986b
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.
Fitch, J.E. and R.J. Lavenberg (1968) Deep-water teleostean fishes of California. California Natural History Guides:25. University of California Press, Berkeley and Los Angeles, California. 115 p.
Gon, O. (1990) Gonostomatidae. p. 116-122. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. 462 p.
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.
De la Cruz Agüero, J. and V.M. Cota Gómez (2006) Length-weight relationships of 10 deep-sea fish species from the Mexican Pacific Ocean. J. Appl. Ichthyol. 22:319-321.
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