Actinopteri (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Gonostomatidae
Etymology: Cyclothone: Greek, kyklothen, in circle, around (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 500 - 1400 m (Ref. 104125). Deep-water; 47°N - 30°N, 6°W - 36°E
Mediterranean Sea endemic.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 3 - 3.5 cm
Max length : 2.0 cm SL male/unsexed; (Ref. 4769); 2.9 cm SL (female)
Precise depth range dependent upon developmental stage and season. Presumed dioecious, spawns during spring to autumn (Ref. 4769).
Probably dioecious (Ref. 4769).
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. (Ref. 4769)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Estimates based on models
Preferred temperature (Ref. 115969
): 13.1 - 14, mean 13.7 °C (based on 87 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00363 (0.00143 - 0.00924), b=3.07 (2.85 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.45 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Fec=200).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .