Gonad Development in the Female Nigerian Clarias Gariepinus Burchell 1822

Some studies have established some physiological parameters for the African sharp tooth catfish Clarias gariepinus in some regions in the world which have been found to vary considerably from what is observed in the Nigerian species. This study indicates that C. gariepinus matured five months after hatching in the female at approximately 700 g. This however differs from a previous study of wild C. gariepinus which reported that the age of first maturity is 1 year, when the body weights of the fishes are approximately 108 g for females.

[1]  M. Bruton The breeding biology and early development of Clarias gariepinus (Pisces: Clariidae) in Lake Sibaya, South Africa, with a review of breeding in species of the subgenus Clarias (Clarias) , 2010 .

[2]  F. Genten,et al.  Atlas of fish histology , 2009 .

[3]  E. Yılmaz,et al.  Gonad Development and Sex Ratio of Sharptooth Catfish (Clarias gariepinus Burchell, 1822) Cultured under Laboratory Conditions , 2007 .

[4]  V. Olaleye A Review Of Reproduction And Gamete Management In The African Catfish Clarias Gariepinus (Burchell) , 2005 .

[5]  B. Jalabert Particularities of reproduction and oogenesis in teleost fish compared to mammals. , 2005, Reproduction, nutrition, development.

[6]  H. Vischer,et al.  Mismatch between patterns of circulating and testicular androgens in African catfish, Clarias gariepinus , 1997, Fish Physiology and Biochemistry.

[7]  R. Schulz,et al.  Sexual steroids during puberty in male African catfish (Clarias gariepinus): serum levels and gonadotropin-stimulated testicular secretion in vitro , 1994, Journal of Comparative Physiology B.

[8]  M. Casadevall,et al.  Description of different stages of oogenesis in Ophidion barbatum (Pisces, Ophidiidae) , 1993, Environmental Biology of Fishes.

[9]  S. Singh,et al.  CYCLIC CHANGES IN GONADAL MATURATION AND HISTOLOGICAL OBSERVATIONS OF THREATENED FRESHWATER CATFISH "NARIKELIRU" MYSTUS MONTANUS (JERDON, 1849) , 2004 .

[10]  F. Arocha Oocyte development and maturity classification of swordfish from the north-western Atlantic , 2002 .

[11]  K. Solak,et al.  Certain Reproductive Characteristics of the Catfish (Clarias gariepinus Burchell, 1822) Living in the River Asi, Turkey , 2001 .

[12]  G. Ankley,et al.  Aspects of basic reproductive biology and endocrinology in the fathead minnow (Pimephales promelas). , 2001, Comparative biochemistry and physiology. Toxicology & pharmacology : CBP.

[13]  A. Kane,et al.  Fathead minnow histology atlas: worldwide web outreach and utilization , 2000 .

[14]  N. M. Inyang,et al.  Oocyte structure, fecundity and sex ratio of Heterobranchus longifilis (Valenciennes 1840) in Idodo River basin (Nigeria) with comments on the breeding biology. , 2000 .

[15]  K. Coward,et al.  Histological classification of oocyte growth and the dynamics of ovarian recrudescence in Tilapia zillii , 1998 .

[16]  C. Sarasquete,et al.  Oogenesis in the amber-jack Seriola dumerili Risso, 1810. An histological, histochemical and ultrastructural study of oocyte development , 1996 .

[17]  L. F. Jackson,et al.  Reproduction of White Perch: The Annual Gametogenic Cycle , 1995 .

[18]  E. Eding,et al.  The African catfish, Clarias gariepinus. , 1995 .

[19]  E. Ferrero,et al.  Light microscopical and ultrastructural cytology of the ovaries in the sea‐grass goby Zosterisessor ophiocephalus (Osteichthyes, Gobiidae) , 1994 .

[20]  Rennes,et al.  Growth-reproduction interaction in Salmonids , 1988 .

[21]  H. Hogendoorn,et al.  Controlled propagation of the African catfish, Clarias lazera (C. & V.): II. Artificial reproduction , 1980 .

[22]  E. Woynarovich,et al.  The artificial propagation of warm-water finfishes: a manual for extension. , 1980 .