Schilbe intermedius, Silver catfish : fisheries, aquaculture

You can sponsor this page

Schilbe intermedius Rüppell, 1832

Silver catfish
Upload your photos and videos
Pictures | Google image
Image of Schilbe intermedius (Silver catfish)
Schilbe intermedius
Picture by Muséum-Aquarium de Nancy/B. Alenda

Classification / Names ຊື່ສາມັນ | ຄຳສັບຄ້າຍຄືກັນ | Catalog of Fishes(ຕະກຸນ, ຊະນິດ) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Schilbeidae (Schilbid catfishes)
Etymology: intermedius: From the Latin «rostrum» (snout) and «depressus» (flattened), referring to the dorsolateral flattened snout of this species (Ref. 43912).
More on author: Rüppell.

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

; ນ້ຳຈືດ ກ່ຽວກັບ (ຢູ່) ໄກ້ໜ້ານ້ຳໃນທະເລເປີດ; ກຸ່ມຫຼືຊະນິດປາທີ່ມີການເຄື່ອນຍ້າຍພາຍໃນນ້ຳຈືດ (Ref. 51243); ລະດັບຄວາມເລິກ 0 - 60 m (Ref. 34291), usually 0 - 30 m (Ref. 34291). Tropical

ການແຜ່ກະຈາຍ ປະເທດ | ເຂດ FAO | ລະບົບນິເວດ | ການປະກົດຕົວ | Point map | ການແນະນຳ | Faunafri

Africa: Senegal, Gambia, Casamance, Corubal, Geba, Little Scarcies, Sassandra, Boubo, Bandama, Agnébi, Mé, Comoé, Tano, Pra, Volta basin, Mono, Sio, Ouémé, Ogun, entire Niger and Chad basins, Cross, Wouri and Sanaga; absent between Little Scarcies and Sassandra; further in the entire Congo River basin, Malagarasi, Luiche, Cunene, Okavango, entire Zambezi including the Kafue system, Lake Kariba, Nile, Lake Victoria basin, Webi Shebeli, Wando, Tana, Galana, Athi, Wami, Rufiji-Ruaha, Lake Rukwa, lower Sabi-Lundi, Shire below Murchison Falls, Lake Chilwa, Ruvu, Pungwe, Limpopo, Incomati and Pongola (Ref. 43912).

Length at first maturity / ຂະໜາດ / ນ້ຳໜັກ / Age

Maturity: Lm 10.0, range 11 - ? cm
Max length : 50.0 cm SL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 57127); ນ້ຳໜັກສູງສຸດທີ່ເຄຍຈັດພີມມາ: 1.4 kg (Ref. 43912)

Short description ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…

ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ): 1; ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ): 5-6; ຄີກົ້ນຂອງປາ: 41 - 66. Diagnosis: 8-13 gill rakers (exceptionally 7-14, Ref. 43912) on lower limb of first gill arch; 41-66 branched anal-fin rays; eyes positioned laterally (Ref. 43912, 57127, 81643). In the Nile (Ref. 43912) and in West Africa adipose fin usually absent, but specimens with a rudimentary adipose fin occasionally present (Ref. 43912, 57127, 81643). In Central and East Africa populations without as well as with entirely developed adipose fin occur; in several populations both morphotypes are mixed together, the adipose fin being absent or present but sometimes varying in size from a recognizable protrusion low down the back to a fully developed adipose fin; posterior nostrils always closer to each other than are anterior ones; lower jaw reaches beyond snout but hardly remarkable in some specimens, mouth being almost isognath; inner side of pectoral spine feebly serrated; nasal barbel at least reaching to midway between eye and opercle but often reaching beyond this level; small specimens (up to about 15 cm) with typical colour pattern with dark lateral bands along sides and anal fin, this pattern gradually disappearsing in larger specimens, the body becoming in general entirely brownish, yellowish and silvery with very few traces of dark lateral bands (Ref. 43912). Eyes positioned laterally (Ref. 81643).

ຊີວະສາດ     ຄຳແປສັບ (ຕ.ຢ. epibenthic)

Reported to be a pelagic species (Ref. 34290), generally abundant in open water, in both lacustrine and fluviatile conditions, often showing shoaling habits; seems to prefer large or rather large rivers and lakes and apparently rarely penetrates small rivers or small affluents (Ref. 43912). Occur mainly on shallow waters. Migrate to the surface at night (Ref. 34291). Surface feeder; nocturnal, omnivorous, voracious and predaceous (Ref. 43912). Feeds on fish (juvenile as well as adults), insects (aquatic as well as terrestrial ones, larvae as well as adult insects), molluscs, freshwater prawns and other crustaceans, algae and bottom-living and planktonic organisms; vegetable material and eggs were also reported from stomach contents (Ref. 43912). Primarily piscivorous at 13-34 cm TL (Ref. 34291, 43912). Rarely grow to lengths greater than 30 cm SL (Ref. 34290). Maximum total length recorded 60.5 cm (Ref. 43912), 52331). Maximum lifetime observed almost 10 years (Ref. 43912). Spawn throughout the year peaking once (Ref. 34291). Migrate into rivers in fairly compact schools during the rainy season to spawn in floodwater pools (Ref. 34291). Reproduction occurs at high water after the floods (Ref. 43912). Oviparous, eggs are unguarded (Ref. 205). Flesh edible and of good flavour; possible aquaculture species (Ref. 43912).

Life cycle and mating behavior ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ

Distinct pairing (Ref. 205).

Main reference Upload your references | ເອກະສານອ້າງອີງ | ຜູ້ປະສານງານ | ຜູ້ຮ່ວມມື

De Vos, L., 2003. Schilbeidae. p. 97-116 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57127)

IUCN Red List Status (Ref. 130435)

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

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

ການປະມົງ: ເປັນສີນຄ້າ; ການລ້ຽງສັດນ້ຳ: ການທົດລອງ
FAO - Publication: search | FishSource |

ຂໍ້ມູນຕື່ມອີກ

ປະເທດ
ເຂດ FAO
ລະບົບນິເວດ
ການປະກົດຕົວ
ການແນະນຳ
Stocks
ນິເວດວິທະຍາ
ອາຫານ
ລາຍການອາຫານ
ການບໍລິໂພກອາຫານ
ອັດຕາ
ຊື່ສາມັນ
ຄຳສັບຄ້າຍຄືກັນ
ການເຜົາໃໝ້ພະລັງງານໂດຍປ່ຽນທາດອາຫານໃນຮ່າງກາຍໃຫ້ກາຍເປັນຊີ້ນແລະໜັງ
ຜູ້ລ້າ
ການສຶກສາຜົນກະທົບຂອງສານຜິດທີ່ມີຜົນກະທົບຕໍ່ລະບົບນິເວດ
ການສືບພັນ
ການຈະເລີນເຕັມໄວ
ການວາງໄຂ່
ການສັງລວມການວາງໄຂ່
ຄວາມດົກຂອງໄຂ່ປາ
ໄຂ່
Egg development
ເອກະສານອ້າງອີງ
ການລ້ຽງສັດນ້ຳ
ຂໍ້ມູນການລ້ຽງສັດນ້ຳ
ສາຍພັນ
ກຳມະພັນ
Electrophoreses
ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ
ພະຍາດ
ການປຸງແຕ່ງ
Nutrients
Mass conversion
ຜູ້ຮ່ວມມື
ຮູບ
Stamps, Coins Misc.
ສຽງ
ຫອຍມີພິດຊະນິດນຶ່ງທີ່ອາໄສໃນທະເລ
ຄວາມໄວ
ປະເພດການລອຍ
ເນື້ອທີ່ເຫືອກ
Otoliths
ສະໝອງ
ວິໄສທັດ

ເຄື່ອງມື

Special reports

Download XML

ແຫຼ່ງອີນເຕີເນັດ

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00540 - 0.00927), b=3.06 (2.98 - 3.14), in cm total length, based on LWR estimates for this species (Ref. 93245).
ຊັ້ນເຂດຮ້ອນ (Ref. 69278):  3.6   ±0.60 se; based on food items.
ຄວາມຢືດຢຸ່ນ (Ref. 120179):  ຂະໜາດກາງ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າ 1.4 - 4.4 ປີ (tmax=5, probably greater; K=0.1-0.3; Fec = 18,000).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (29 of 100).
Price category (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 109 [51, 259] mg/100g; Iron = 1.97 [0.87, 3.77] mg/100g; Protein = 17.2 [15.3, 19.0] %; Omega3 = 0.546 [0.197, 1.527] g/100g; Selenium = 68.2 [27.0, 172.9] μg/100g; VitaminA = 43 [15, 128] μg/100g; Zinc = 1.37 [0.90, 2.07] mg/100g (wet weight);