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Stomiiformes (Lightfishes and dragonfishes) >
Sternoptychidae (Marine hatchetfishes) > Sternoptychinae
Etymology: Sternoptyx: Greek, sternon = sternon, + Greek, ptyx = fold (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά) βαθυπελαγικό(ς); ωκεανόδρομο(ς) (Ref. 51243); εύρος βάθους 800 - 2000 m (Ref. 74511), usually 800 - 1200 m (Ref. 4054). Deep-water; 43°N - 40°S
Widely distributed in the three major oceans. Eastern Atlantic: Portugal south to South Africa. Eastern Pacific: British Columbia, Canada (Ref. 11980). South China Sea and East China Sea (Ref.74511).
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 6.0 cm SL αρσενικό/απροσδιόριστο; (Ref. 4462)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 0; Μαλακές ραχιαίες ακτίνες (συνολικά) : 9 - 12; Εδρικές άκανθες: 0; Μαλακές εδρικές ακτίνες: 13 - 15; Σπόνδυλοι: 27 - 30. Triangular transparent membrane above anal fin (Ref. 13608).
Oceanic (Ref. 4739). Meso- and bathypelagic (Ref. 58302). Does not exhibits vertical migration (Ref. 4462). Feeds on copepods, ostracods, euphausiids, amphipods, decapods (Ref. 4739). Photophores develop in adults over 16-18 mm SL (Ref. 4739). Minimum depth from Ref. 004054.
Life cycle and mating behavior
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
Quéro, J.-C., J.C. Njock and M.M. de la Hoz, 1990. Sternoptychidae. p. 275-282. 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. (Ref. 4462)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
αλιεία: χωρίς ενδιαφέρον
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Preferred temperature (Ref.
123201): 3.6 - 8, mean 4.9 °C (based on 1084 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02754 (0.01504 - 0.05042), b=2.95 (2.78 - 3.12), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.4 ±0.2 se; based on diet studies.
Ελαστικότητα (Ref.
120179): Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (Assuming tmax>3).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
