رده بندی / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Tilapia: Bechuana, African native thiape = fish (Ref. 45335); pra: The species name pra refers both to the Akan word 'pra' (river) of the Kwa language family spoken in Ghana and to the River Pra, from which drainage the holotype was collected; it refers to the riverine distribution as compared to the lacustrine distribution of its apparent sister taxon Tilapia busumana; a noun in apposition (Ref. 84667).
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: Pra, Ankobra, Tano and Bia rivers in southwestern Ghana and southeastern Cote d'Ivoire (Ref. 84667).
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 12.7 cm SL جنس نر / بدون خواص جنسي; (Ref. 84667)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
خارهاي باله پشتي (کل) : 14 - 16; شعاع نرم باله پشتي (کل) : 11 - 12; خارهاي باله مخرجي: 3; شعاع نرم باله مخرجي: 8 - 10. Diagnosis: Tilapia pra is distinguished from all other Tilapia sensu lato except T. sparrmanii, T. ruweti, T. guinasana, T. baloni, T. brevimanus, T. busumana, Pelmatolapia mariae and Pelmatolapia cabrae, in having bicuspid pharyngeal teeth in the posterior two rows of lower pharyngeal jaw (Ref. 84667). It differs from T. baloni and T. ruweti in having more gill rakers on first ceratobranchial, lower, gill-arch, 10-12 vs. 6-9; from T. guinasana in having a higher number of upper lateral line scales, 18-22 vs. 14-17; and from T. sparrmanii in a combination of a higher number of upper lateral line scales, 18-22 vs. 14-19, a shorter anal fin base, 15.0-18.6% of standard length vs. 18.0-23.8%, and a lower number of vertical stripes, 6-7 vs. 8-9 (Ref. 84667). It further differs from Pelmatolapia mariae and P. cabrae in having fewer scales on the lower lateral line, 8-11 vs. 10-14, and not having spatulate shaped teeth in the outer row of both jaws; from T. brevimanus in having fewer gill rakers on the ceratobranchial gill-arch, 10-12 vs. 12-16, and not having spatulate shaped teeth in the outer row of both jaws; from T. busumana in possessing a longer last dorsal-spine, 16.2-21.3% of standard length vs. 11.6-14.9%, a shorter lower lip length, 8.0-10.7% of standard length vs. 9.6-13.9%, and a shorter lower jaw length, 9.9-13.6% of standard length vs. 10.5-15.2%; in addition, it differs from T. busumana in ground colouration: Tilapia pra possesses a light brown to greyish dorsum and a beige to yellow ventral area vs. a bluish-purple to blackish dorsum and darker on underside of head and body of T. busumana (Ref. 84667).
Found over sandy/muddy substrate of mediem-sized rivers (Ref. 84667).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Dunz, A.R. and U.K. Schliewen, 2010. Description of a new species of Tilapia Smith, 1840 (Teleostei: Cichlidae) from Ghana. Zootaxa 2548:1-21. (Ref. 84667)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2024-2)
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 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01862 (0.00830 - 0.04177), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.3 ±0.2 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).
