Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Pentanchidae (Deepwater catsharks)
Etymology: Galeus: galeos, a small shark or dogfish according to Aristotle and others (See ETYFish); eastmani: Patronym not identified, probably in honor of American geologist and paleontologist Charles Rochester Eastman (1868-1918), a specialist in fossil fishes (See ETYFish).
Eponymy: Dr Charles Rochester Eastman (1868–1918) was an American palaeontologist, particularly interested in fossil fish. [...] (Ref. 128868), visit book page.
More on authors: Jordan & Snyder.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά) βαθύβιο(ς). Deep-water; 34°N -
Northwestern Pacific: Japan to Taiwan (Ref. 127969). Possibly Vietnam and Malaysia.
Length at first maturity / Μέγεθος / Βάρος / Age
Maturity: Lm 36.5, range 36 - 37 cm
Max length : 40.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 11146)
Ραχιαίες άκανθες (συνολικά) : 0; Εδρικές άκανθες: 0. Obscure saddle markings on body and precaudal tail, and with dark markings on the terminal and hypural caudal-fin lobes (Ref. 11146).
A little-known, but very common shark, found in deep water near the bottom (Ref. 11146). Maximum length of at least 40 cm TL, probably reaching 50 cm (Ref. 11146).
Oviparous, with a single egg laid per oviduct (Ref. 244). Embryos feed solely on yolk (Ref. 50449).
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Διαδικτυακές πηγές
Estimates based on models
Preferred temperature (Ref.
123201): 2.6 - 5.8, mean 3.8 °C (based on 706 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00175 - 0.00721), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.9 ±0.2 se; based on diet studies.
Ελαστικότητα (Ref.
120179): Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).
Nutrients (Ref.
124155): Calcium = 11.3 [2.0, 74.3] mg/100g; Iron = 0.364 [0.077, 1.246] mg/100g; Protein = 16.8 [13.6, 19.9] %; Omega3 = 0.214 [0.087, 0.521] g/100g; Selenium = 6.88 [2.12, 20.95] μg/100g; VitaminA = 21.6 [4.6, 104.1] μg/100g; Zinc = 0.449 [0.208, 0.865] mg/100g (wet weight);