Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; স্বাদু পানি ভাসমান; পোটামোড্রোমাস (Ref. 51243). Tropical
Africa: only in Sahelo-Sudanese river basins (Ref. 81279), including the Nile, Chad basin, Niger, Volta, Senegal and Gambia (Ref. 2880, 5331).
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 86.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 3799); সবের্াচ্চ প্রকাশিত ওজন : 8.3 kg (Ref. 2880)
Diagnosis: eye <60% of interorbital space; massive profile specially on anterior part (Ref. 2880, 81279). Three scale rows between lateral line and scaly process at pelvic-fin bases; rakers of first gill arch poorly developed; snout-dorsal fin length/snout-ventral fins length different from one; adipose fin grey or black (Ref. 81279). Inferior lobe of caudal and anterior end of anal fin red-orange (Ref. 2880).
Hydrocynus species are piscivorous, but may also eat Caridina and insects (Ref. 28714). Affinities: easily distinguished from two other species in West Africa from the number of scale-rows below lateral line, which is 3 instead of 2 (Ref. 81279).
Life cycle and mating behavior
Maturities | প্রজনন | Spawnings | Egg(s) | Fecundities | শুককীট
Paugy, D., 2003. Alestidae. p. 236-282. In D. Paugy, C. Lévêque and G.G Teugels (eds.) The fresh and brackish water fishes of West Africa Volume 1. Coll. faune et flore tropicales 40. Institut de recherche de développement, Paris, France, Muséum national d'histoire naturelle, Paris, France and Musée royal de l'Afrique Central, Tervuren, Belgium, 457p. (Ref. 81279)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
মৎস্য: বাণিজ্যিক
হাতিয়ার
Special reports
Download XML
ইন্টারনেট সুত্র
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00528 - 0.02495), b=3.00 (2.82 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 3.4 ±0.50 se; based on food items.
স্থিতিস্থাপক (Ref.
120179): মাধ্যম , সর্বনিম্ন প্রজন দ্বিগুনের সময় ১.৪-৪.৪ বৎসর (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (54 of 100).
