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Clarias batrachus (Linnaeus, 1758)

Philippine catfish
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Philippines country information

Common names: Alimudan, Hito, Hito
Occurrence: introduced
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref:
Aquaculture: commercial | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known Ambacan River at Makinhas and Butigan, Leyte in 1993 (Ref. 7223), Kalinawan River (Ref. 81829), Laguna de Bay (Ref. 80824), Lake Buluan (Ref. 13492), Lake Taal (Ref. 13446), Lake Naujan (Ref. 13446, 81829), Paoay Lake (Ref. 80830), Lake Lanao (Ref. 81887, 95183), and Lake Mainit, Mindanao (Ref. 4867). Also recorded from Paitan Lake, Pantabangan Dam, and Tabuating River (Nueva Ecija) (Ref. 109918). Completely dominated natural populations in lakes and rivers and the indigenous Clarias macrocephalus which can hardly be found in the markets today. Occurs in swamps, ponds, ditches, rice paddies, and pools left in low spots after rivers have flooded (Ref. 2854). Also Ref. 1739, 6096, 7050, 12550, 36654, 43638.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: ASAP, Aquarium Science Association of the Philippines, 1996
National Database:

Common names from other countries

Classification / Names Tên thường gặp | Các synonym ( Các tên trùng) | Catalog of Fishes(Giống, Các loài) | ITIS | CoL | WoRMS | Cloffa

> 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: Linnaeus.

Environment: milieu / climate zone / depth range / distribution range Sinh thái học

; Nước ngọt; Thuộc về nước lợ gần đáy; di cư trong nước ngọt (Ref. 51243); Mức độ sâu 1 - ? m (Ref. 2854).   Tropical; 10°C - 28°C (Ref. 2060); 29°N - 7°S

Sự phân bố Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Point map | Những chỉ dẫn | Faunafri

Asia: Java, Indonesia. Clarias aff. batrachus from Indochina and Clarias aff. batrachus from Sundaland have been misidentified as Clarias batrachus from Java. Introduced elsewhere. Several countries report adverse ecological impact after introduction.

Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age

Maturity: Lm 28.0  range ? - ? cm
Max length : 47.0 cm TL con đực/không giới tính; (Ref. 40637); common length : 26.3 cm TL con đực/không giới tính; (Ref. 12193); Khối lượng cực đại được công bố: 1.2 kg (Ref. 40637)

Short description Khóa để định loại | Hình thái học | Sinh trắc học

Các tia vây lưng cứng (tổng cộng) : 0; Các vây lưng mềm (tổng cộng) : 60 - 76; Tia cứng vây hậu môn: 0; Tia mềm vây hậu môn: 47 - 58. Body compressed posteriorly. Upper jaw a little projecting. Spine of pectoral fins rough on its outer edge and serrated on its inner edge (Ref. 4792). Occipital process more or less triangular, its length about 2 time in its width (Ref. 27732); distance between dorsal and occipital process 4-5.5 times in distance from tip of snout to end of occipital process (Ref. 43281). Genital papilla in males is elongated and pointed (Ref. 52012).

Sinh học     Tự điển (thí dụ epibenthic)

Facultative air-breathing (Ref. 126274); Adults inhabit lowland streams (Ref. 57235), swamps, ponds, ditches, rice paddies, and pools left in low spots after rivers have been in flood (Ref. 2854, 57235). Usually confined to stagnant, muddy water (Ref. 1479). Found in medium to large-sized rivers, flooded fields and stagnant water bodies including sluggish flowing canals (Ref. 12975). Undertake lateral migrations from the Mekong mainstream, or other permanent water bodies, to flooded areas during the flood season and returns to the permanent water bodies at the onset of the dry season (Ref. 37770). Can live out of water for quite sometime and move short distances over land (Ref. 4833). Can walk and leave the water to migrate to other water bodies using its auxiliary breathing organs. The Lao use this fish as lap pa or ponne pa. Feed on insect larvae, earthworms, shells, shrimps, small fish, aquatic plants and debris (Ref. 6459). An important food fish (Ref. 4833) that is marketed live, fresh and frozen (Ref. 9987). Recently rare, being replaced by introduced African walking catfish (Ref. 57235).

Life cycle and mating behavior Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng

The pair manifests the 'spawning embrace' which is widely observed in other catfish species (Ref. 33313). The pair gently nudge each other in the genital region and flick their dorsal fins; male wraps his body around the female, then the female releases a stream of adhesive eggs into the nest (Ref. 44091). In southeast Asia, spawning period is during the rainy season, when rivers rise and fish are able to excavate nests in submerged mud banks and dikes of flooded rice fields (Ref. 40977).

Main reference Upload your references | Các tài liệu tham khảo | Người điều phối | Người cộng tác

Rahman, A.K.A., 1989. Freshwater fishes of Bangladesh. Zoological Society of Bangladesh. Department of Zoology, University of Dhaka. 364 p. (Ref. 1479)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 16 January 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Potential pest (Ref. 4690)




Human uses

Các nghề cá: Tính thương mại; Nuôi trồng thủy sản: Tính thương mại; Bể nuôi cá: Tính thương mại
FAO(Aquaculture systems: Sản xuất; Các nghề cá: Sản xuất; publication : search) | FishSource |

Thêm thông tin

Trophic ecology
Các loại thức ăn
Diet compositions
Food consumptions
Food rations
Các động vật ăn mồi
Ecology
Sinh thái học
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Sự tái sinh sản
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Ấu trùng
Sự biến động ấu trùng
Anatomy
Gill areas
Não bộ
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Dạng bơi
Swimming speeds
Visual pigment(s)
Âm thanh của cá
Diseases / Parasites
Toxicities (LC50s)
Genetics
Di truyền
Electrophoreses
Heritabilities
Human related
Aquaculture systems
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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=0.00912 (0.00500 - 0.01662), b=2.93 (2.78 - 3.08), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Mức dinh dưỡng (Ref. 69278):  3.4   ±0.50 se; based on food items.
Thích nghi nhanh (Ref. 120179):  Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (K=0.7 (in aquarium); tm=1; Fec=2,300-13,400).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (24 of 100).
Price category (Ref. 80766):   Unknown.