Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي; آب شيرين; لب شور سطح زی; رود کوچ (Ref. 51243). Tropical; 13°N - 13°S
Africa: lagoons and lower parts of rivers from Liberia to Angola (Ref. 188, 2244, 28136, 81269, 81631), also in Guinea-Bissau (Ref. 3033); however it seems to be absent in the area between Ghana and Niger River Delta (Ref. 2244, 28136), except for Lake Nokoué (Ref. 81269). This species was not observed far upstream rivers (Ref. 2244), although it has been found recently in Léfini River, part of Middle Congo River basin (Ref. 88782). The type locality of the syntypes of the nominal species Pellonula stanleyana, 'Stanley Falls' (Ref. 2263), seems to be an erroneous locality (Ref. 188), and should be 'Cette Cama [= Sette Cama]' in Gabon (Ref. 2244).
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 12.0 cm SL جنس نر / بدون خواص جنسي; (Ref. 188)
خارهاي باله پشتي (کل): 0; شعاع نرم باله پشتي (کل): 15-19; خارهاي باله مخرجي 0; شعاع نرم باله مخرجي: 16 - 21; مهره ها: 42 - 43. Diagnosis: Body moderate or fairly deep, its depth 23-30% of standard length; 1 or more scutes beginning in front of base of first pectoral finray, with 11-16 pre-pelvic and 8-11 post-pelvic scutes, and a total of 20-25 scutes, first pre-pelvic scute always longer and better developed than following scutes lacking ascending arms; lower jaw slightly projecting, teeth at symphysis large in large specimens; pre-maxilla teeth well-developed, fairly straight and outward pointing, an indented toothless gap at centre of jaw; lower gillrakers 24-37, equal to or longer than corresponding gill filaments; silver stripe along flank (Ref. 188, 2244, 81269, 81631). It resembles Pellonula leonensis, which has small and inward-curving teeth and no pre-pectoral scutes (Ref. 188, 81269, 81631). The absence of large canine teeth in the upper jaw distinguishes it from Odaxothrissa (Ref. 188).
Found in rivers and streams (Ref. 188). It forms large schools in lower courses of rivers (Ref. 2244, 43836), and is very abundant in brackish water habitat (Ref. 86940).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Gourène, G. and G.G. Teugels, 1991. Révision du genre Pellonula des eaux douces africaines (Pisces: Clupeidae). Ichthyol. Explor. Freshwat. 2(3):213-225. (Ref. 2244)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: معاش ماهیگیری
اطلاعات بيشتر
مراجعآبزي پرورينمايه آبزي پرورينژادهاژنتيكElectrophoresesوارثبيماري هافرآوریNutrientsMass conversion
همكارانعکس هاStamps, Coins Misc.صداهاسيگواتراسرعتنوع شناگریمنطقه آبششيOtolithsمغزهابینایی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00433 - 0.01920), b=3.04 (2.87 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
جهندگی (Ref.
120179): متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (Fec < 1,000).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
