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Siluriformes (Catfishes) >
Clariidae (Airbreathing catfishes)
Etymology: Clarias: Greek, chlaros = lively, in reference to the ability of the fish to live for a long time out of water.
More on author: Sauvage.
Environment: milieu / climate zone / depth range / distribution range
ນິເວດວິທະຍາ
; ນ້ຳຈືດ ອາໄສຢູ່ໃກ້ໜ້າດິນໃຕ້ພື້ນທ້ອງນ້ຳ; pH range: 6.0 - 7.5; dH range: 15 - 25; ກຸ່ມຫຼືຊະນິດປາທີ່ມີການເຄື່ອນຍ້າຍພາຍໃນນ້ຳຈືດ (Ref. 51243). Tropical; 22°C - 28°C (Ref. 12468); 10°N - 11°S
Africa: from coastal rivers of Benin and Nigeria over rivers Cross, Sanaga, Wouri and Ogooué (Cameroon and Gabon) to the Congo River basin (Democratic Republic of the Congo, Angola, Congo Republic, Central African Republic and Zambia) (Ref. 248).
ຂະໜາດ / ນ້ຳໜັກ / Age
Maturity: Lm ? range ? - ? cm
Max length : 34.1 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 11363)
ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ) : 0; ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ) : 75 - 88; ຄີ(ໜາມ) ແຂງຢູ່ຄີກົ້ນປາ
ກຸ່ມປາກະດູກແຂງ
ຄວາມຖີ່ຂອງກຸ່ມຖ່າຍທອດພັນ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລແລະໄປໄຂ່ຢູ່ນ້ຳຈືດ
ຄີກົ້ນຂອງປາ
ສັດທີ່ມີກະດູກສັນຫັຼງ
ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ: 0; ຄີກົ້ນຂອງປາ: 55 - 68; ສັດທີ່ມີກະດູກສັນຫຼັງ: 56 - 63. Diagnosis: head relatively broad, 14.2-20.9% of standard length (Ref. 57129, 81644). Head length 21.0-27.9% SL (Ref. 101841). Wide interorbital distance (Ref. 248), 41.3-51.8% averaging 46.4% of head length (Ref. 57129, 81644). Large tooth plates (Ref. 248), width of premaxillary tooth plate 25.9-37.2% of head length (m=29.5), width of vomerine tooth plate 21.0-31.2% of head length (Ref. 57129, 81644). Barbels extremely long (Ref. 248, 57129, 81644), nasal barbel 77.8-187.5%, maxillary barbel 142.9-305.8%, inner mandibular barbell 58.9-128.7%, and outer mandibular barbell 104.3-211.2% of head length (Ref. 57129, 81644). Head rather rectangular in dorsal outline; eyes more laterally located (Ref. 248). Frontal fontanelle long and narrow ("knife-shaped")(Ref. 248, 57129). Occipital fontanelle oval-shaped; pectoral spine robust and slightly curved (Ref. 248), strongly serrated on outside and inside (Ref. 81644, 101841). Gill rakers on first branchial arch long and slender; suprabranchial organ well developed, however not completely filling the cavity (Ref. 248). Openings of secondary canals of lateral line irregularly placed on the body (Ref. 248, 81644). Cleithrum mostly embedded in soft tissue, only thin bony ridge is exposed through skin; dorsal fin length 61.5-73.0% SL; distance from dorsal to caudal fin -1.4-2.1% SL (Ref. 101841).
Colouration: both live and preserved specimens usually dark-coloured (Ref. 57129, 81644, 101841). 2 types of colouration: one uniform dark brown to black on back and sides and light on belly (Ref. 57129, 81644, 101841), and upper sides of paired fins dark on lower sides and light on upper sides (Ref. 248). The other marbled, with small brown spots against a light background on back and sides and belly whitish; very dark unpaired fins; caudal fin with a series of vertical bars (a light bar in the middle flanked by dark ones)(Ref. 248, 57129, 81644, 101841). Some specimens may show irregular pattern of small white spots on body (Ref. 101841).
Facultative air-breathing (Ref. 126274); Found in lakes, rivers, floodplains and swamps. Bottom feeder, the stomach contained plants, algae, insect larvae (Ephemeroptera, Chironomidae, Ceratopogonidae, Odonata), Entomostraca (Cladocera, Ostracoda), Thecamiba and remains of insects (Ref. 248).
Life cycle and mating behavior
Maturities | ການສືບພັນ | Spawnings | Egg(s) | Fecundities | ຕົວອ່ອນ
Teugels, G.G., 1986. A systematic revision of the African species of the genus Clarias (Pisces; Clariidae). Ann. Mus. R. Afr. Centr., Sci. Zool., 247:199 p. (Ref. 248)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
ເຄື່ອງມື
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ແຫຼ່ງອີນເຕີເນັດ
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00500 - 0.01450), b=2.95 (2.81 - 3.09), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
ຊັ້ນເຂດຮ້ອນ (Ref.
69278): 3.3 ±0.41 se; based on food items.
ຄວາມຢືດຢຸ່ນ (Ref.
120179): ສູງ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງໜ້ອຍກວ່າ 15 ເດືອນ (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (24 of 100).
Nutrients (Ref.
124155): Calcium = 42.4 [20.5, 211.6] mg/100g; Iron = 1.66 [0.95, 2.88] mg/100g; Protein = 16.7 [15.7, 17.8] %; Omega3 = 0.257 [0.086, 0.727] g/100g; Selenium = 119 [41, 307] μg/100g; VitaminA = 37.7 [13.4, 106.1] μg/100g; Zinc = 0.986 [0.680, 1.402] mg/100g (wet weight);
