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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Haplochromis: Greek, Haploos = single + Greek, chromis = a fish, perhaps a perch (Ref. 45335); thereuterion: The name refers to the predatory habits of this small species (Ref. 47153).
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
; آب شيرين موجوداتی که در محدوده وسیعی از آبهای آزاد از نزدیک بستر و یا روی کف بستر، در قسمت های میان آبی تا سطح آب و در برخی گونه ها با قابلیت پرواز، زندگی و تغذیه می کنند.. Tropical
Africa: Lake Victoria.
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 8.2 cm SL جنس نر / بدون خواص جنسي; (Ref. 47153); 7.6 cm SL (female)
خارهاي باله پشتي (کل) : 15 - 16; شعاع نرم باله پشتي (کل) : 8 - 10; خارهاي باله مخرجي: 3; شعاع نرم باله مخرجي: 7 - 10; مهره ها: 29 - 32. Small, slender, laterally compressed body (Ref. 47153). A rather acutely pointed snout (Ref. 47153). Lips slightly thickened (Ref. 47153). Lower jaw ventral outline almost straight, the rostral outline of lower jaw straight or slightly convex with a smoothly rounded mental area (Ref. 47153). Pectoral fins just reaching the anus; dorsal fin rays slightly longer than those of the anal fin, nearly reaching the caudal fin base (Ref. 47153). All scales on the head are cycloid; scales on rostral part of dorsum cycloid or very weakly ctenoid, caudal part of dorsum with ctenoid scales; scales on flank and caudal peduncle ctenoid; ventral chest scales small and cycloid, lateral chest scales moderately small, weakly ctenoid (Ref. 47153).Live basic color for males is bluish-grey dorsally and silvery white ventrally, sexually active males have a pitch black head and body; females and juveniles have a distinct, relatively thin mid lateral band, but the cheek of the females are slightly more greyish (Ref. 47153). Two continuous longitudinal bands on the body (Ref. 47153).
Haplochromis thereuterion occurs in the upper layers of the water column in Lake Victoria (Ref. 47153).
Life cycle and mating behavior
Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)
van Oijen, M.J.P. and F. Witte, 1996. Taxonomical and ecological description of a species complex of zooplanktivorous cichlids from Lake Victoria. Zool. Verh. Leiden 302:56 p. (Ref. 47153)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
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=0.01514 (0.00700 - 0.03275), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
جهندگی (Ref.
120179): زياد, كمينه زمان لازم براي دو برابر شدن جمعيت ، كمتر از 15 ماه (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
