ກຸ່ມປາກະດູກອ່ອນ (ເຊັ່ນ: ປາສະຫລາມ, ປາຜາໄລ) (sharks and rays) >
Squaliformes (Sleeper and dogfish sharks) >
Somniosidae (Sleeper sharks)
Etymology: Centroselachus: centr[um] (L.), prickle or sharp point, referring to spines on both dorsal fins; selachos (Gr.), a cartilaginous fish (i.e., shark or ray). (See ETYFish); crepidater: crepida (L.), low shoe (e.g., slipper); ater (L.), black, transliteration of Portuguese vernacular sapata preta, black shoe, allusion not explained, possibly referring to superficial resemblance to a black velvet slipper [see also Deania calceus, Centrophoridae]. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
ນິເວດວິທະຍາ
ສັດທະເລ ກ່ຽວກັບ(ຢູ່)ຊັ້ນນ້ຳໃນທະເລທີ່ເໜີອພື້ນດິນ; ລະດັບຄວາມເລິກ 230 - 1500 m (Ref. 26346). Deep-water; 64°N - 57°S, 77°W - 159°W
Eastern Atlantic: Iceland, Faeroe Islands along Atlantic slope to Portugal, Senegal, Madeira, Gabon to Democratic Republic of the Congo, Namibia (Ref. 247). Indian Ocean: Aldabra and the Travancore coast of India. Western Pacific: New South Wales, Australia and New Zealand. Southeast Pacific: northern Chile.
Length at first maturity / ຂະໜາດ / ນ້ຳໜັກ / Age
Maturity: Lm 75.4, range 82 - ? cm
Max length : 130 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 6577); ອາຍຸສູງສຸດທີ່ເຄຍລາຍງານມາ: 54 ປີ (Ref. 57506)
ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ) : 2; ຄີ(ໜາມ) ແຂງຢູ່ຄີກົ້ນປາ
ກຸ່ມປາກະດູກແຂງ
ຄວາມຖີ່ຂອງກຸ່ມຖ່າຍທອດພັນ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລແລະໄປໄຂ່ຢູ່ນ້ຳຈືດ
ຄີກົ້ນຂອງປາ
ສັດທີ່ມີກະດູກສັນຫັຼງ
ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ: 0. Black or blackish brown in color, dorsal fins with very small fin spines, very long snout, greatly elongated labial furrows that nearly encircle mouth, lanceolate upper teeth and bladelike lower teeth with moderately long, oblique cusps, fairly slender body that does not taper abruptly from pectoral region, moderately large lateral trunk denticles with partly smooth, oval, cuspidate crowns in adults and subadults (Ref. 247).
A fairly common species found on continental and insular slopes (Ref. 6871), on or near the bottom (Ref. 5578). Feeds mainly on fish and cephalopods (Ref. 6871). Ovoviviparous (Ref. 205), with 4-8 young in a litter (Ref. 6871), born at 28-35 cm (Ref. 26346). The flesh is high in mercury; utilized as fishmeal and source of squalene (Ref. 6871).
Ovoviviparous, with 4-8 young in a litter (Ref. 6871). Born at 28-35 cm (Ref. 26346). Distinct pairing with embrace (Ref. 205).
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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)
IUCN Red List Status (Ref. 130435)
Threat to humans
Poisonous to eat (Ref. 6871)
Human uses
ການປະມົງ: ທີ່ເປັນການຄ້າໜ້ອຍ
ເຄື່ອງມື
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ແຫຼ່ງອີນເຕີເນັດ
Estimates based on models
Preferred temperature (Ref.
123201): 2.6 - 10.8, mean 7.8 °C (based on 659 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5313 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00181 - 0.00503), b=3.12 (2.98 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
ຊັ້ນເຂດຮ້ອນ (Ref.
69278): 4.2 ±0.4 se; based on diet studies.
ຄວາມຢືດຢຸ່ນ (Ref.
120179): ຕຳ່ຫຼາຍ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າຫຼາຍກວ່າ 14 ປີ (Fec=4-8, tmax=54, tm=9-15).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (78 of 100).
Climate Vulnerability (Ref.
125649): Moderate vulnerability (38 of 100).
Nutrients (Ref.
124155): Calcium = 5.64 [1.10, 30.50] mg/100g; Iron = 0.287 [0.069, 0.959] mg/100g; Protein = 20.1 [17.2, 22.3] %; Omega3 = 0.277 [0.101, 0.885] g/100g; Selenium = 18.1 [5.4, 54.3] μg/100g; VitaminA = 12.2 [2.5, 62.2] μg/100g; Zinc = 0.29 [0.14, 0.57] mg/100g (wet weight);