>
Perciformes/Notothenioidei (Icefishes) >
Channichthyidae (Crocodile icefishes)
Etymology: Chaenodraco: Greek, chaeno = to yawn + Greek, drako = dragon (Ref. 45335).
Eponymy: Dr Edward Adrian Wilson (1872–1912) was an English physician, polar explorer, painter and natural historian. [...] (Ref. 128868), visit book page.
More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
ນິເວດວິທະຍາ
ສັດທະເລ ກ່ຽວກັບ (ຢູ່)ເທິງຊັ້ນພື້ນດິນໃນທະເລເປີດ; ລະດັບຄວາມເລິກ 200 - 800 m (Ref. 5200). Polar; 60°S - 78°S, 180°W - 180°E (Ref. 5200)
Southern Ocean: Circum-Antarctic on Antarctic continental shelf. Northernmost records from vicinity of South Orkney Islands and Antarctic Peninsula.
Length at first maturity / ຂະໜາດ / ນ້ຳໜັກ / Age
Maturity: Lm ?, range 23 - ? cm
Max length : 43.0 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 5200); common length : 30.0 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 2805)
ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ) : 5 - 8; ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ) : 38 - 42; ຄີ(ໜາມ) ແຂງຢູ່ຄີກົ້ນປາ
ກຸ່ມປາກະດູກແຂງ
ຄວາມຖີ່ຂອງກຸ່ມຖ່າຍທອດພັນ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລແລະໄປໄຂ່ຢູ່ນ້ຳຈືດ
ຄີກົ້ນຂອງປາ
ສັດທີ່ມີກະດູກສັນຫັຼງ
ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ: 0; ຄີກົ້ນຂອງປາ: 32 - 36. Supraorbital ridge not crenulated. Middle lateral line restricted to caudal peduncle; lower lateral line originating from in front of anal-fin origin to above sixth anal ray. Maxilla extending to below anterior third of eye. Opercular bones with 2 upper and 3 lower spines. Preopercular-mandibular canal not joined to temporal canal. Pelvic fins extending beyond anal-fin origin. In life, pale grey, whitish ventrally. Differentiated by the dorsoventrally oval shape; the prominent distally rounded rostrum, pseudo-rostrum and pseudo-antirostrum; the clearly defined excisura ostii and pseudo-excisura ostii; the acutely constricted collum; and the well developed colliculli.
Ontogeny: The excisura ostii and the pseudo-excisura ostii become deeper and the crista inferior becomes less distinct with an increase in the fish size.
Common in shallower waters of the continental shelf, especially on banks less than 250 m deep in areas where local upwelling increase food supply (Ref. 6390). Postlarvae and pelagic juveniles are also found in the upper 100 m (Ref. 5200). Food consists of fishes and krill. Spawn in winter (Ref. 6390). Larval pelagic phase is long (Ref. 28915). Prey to penguins and seals (Ref. 6390). Utilized as a food fish (Ref. 5200).
Iwami, T. and K.-H. Kock, 1990. Channichthyidae. p. 381-389. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. 462 p. (Ref. 5200)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
ການປະມົງ: ທີ່ເປັນການຄ້າໜ້ອຍ
ເຄື່ອງມື
Special reports
Download XML
ແຫຼ່ງອີນເຕີເນັດ
Estimates based on models
Preferred temperature (Ref.
123201): -1.8 - 1.4, mean -0.8 °C (based on 825 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00098 (0.00057 - 0.00167), b=3.53 (3.38 - 3.68), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
ຊັ້ນເຂດຮ້ອນ (Ref.
69278): 3.2 ±0.2 se; based on diet studies.
ຄວາມຢືດຢຸ່ນ (Ref.
120179): ຂະໜາດກາງ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າ 1.4 - 4.4 ປີ (Fec = 393-862).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (33 of 100).
Climate Vulnerability (Ref.
125649): High vulnerability (64 of 100).
Nutrients (Ref.
124155): Calcium = 24.1 [13.1, 52.5] mg/100g; Iron = 0.394 [0.164, 0.807] mg/100g; Protein = 16.6 [14.9, 18.4] %; Omega3 = 0.238 [0.110, 0.509] g/100g; Selenium = 23 [8, 56] μg/100g; VitaminA = 20.2 [4.2, 101.6] μg/100g; Zinc = 0.466 [0.301, 0.712] mg/100g (wet weight);
