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Elasmobranchii (sharks and rays) > Carcharhiniformes (Ground sharks) > Pentanchidae (Deepwater catsharks)
Etymology: Galeus: galeos, a small shark or dogfish according to Aristotle and others. (See ETYFish); nipponensis: -ensis, Latin suffix denoting place: Nippon, or Japan (known only from Japanese waters). (See ETYFish).

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; bathydemersal. Deep-water; 34°N - 7°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Northwest Pacific: China (Ref. 47946), Japan (Ref. 244) and the Kyushu-Palau Ridge (Ref. 559).

Length at first maturity / Size / Weight / Age

Maturity: L_m 54.0, range 53 - 55 cm
Max length : 70.0 cm TL male/unsexed; (Ref. 559)

Oviparous, with possibly a single egg laid per oviduct.

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).

Main reference Upload your references | References | Coordinator | Collaborators

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)

Least Concern (LC) ; Date assessed: 28 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 2.6 - 5.7, mean 4 °C (based on 75 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00355 (0.00176 - 0.00714), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.4 ±0.4 se; based on diet studies.

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (48 of 100).

Nutrients (Ref. 124155): Calcium = 8.24 [1.46, 51.33] mg/100g; Iron = 0.327 [0.070, 1.092] mg/100g; Protein = 17.2 [14.0, 20.3] %; Omega3 = 0.21 [0.09, 0.50] g/100g; Selenium = 7.77 [2.62, 23.92] μg/100g; VitaminA = 16.1 [3.5, 72.9] μg/100g; Zinc = 0.345 [0.160, 0.660] mg/100g (wet weight);

Galeus nipponensis Nakaya, 1975