MORPHOLOGY AND GENERAL REPRODUCTIVE STAGES OF ...

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15 Log 10 -transformed length-weight relationship of P. nasutus caught from Pahang River near Maran 16 Water surface temperature, dissolved oxygen (D.O) and specific conductivity (SpC) taken from the Pahang River near Maran during the sampling period from October 2004 to September 2005. Mean±SD are subject to Tukey HSD in which dissimilar letters are significantly different (P
24 Nucleolar stage. Chromatin nucleolar stage; a) nucleoli in the nucleus present as chromatin form and more numbers of nucleoli are visible (100x); b) nucleoli are moving toward the nucleus periphery. Follicular layer appear as purple stained layer surrounding the oocyte (40x). Perinucleolar stage; a) Nucleoli allocated peripherally to the nucleus. Cytoplasm is stained light blue (20x); b) Dark spot granules can be observed alongside the follicular layer. A sign of the formation of granulosa layer (40x) 25 Cortical alveoli stage, a) Early cortical alveoli stage with translucent dots at the peripheral oocyte indicating the presence of yolk vesicles (40x); b) Follicular envelope showing the developing vitelline membrane (100x); c) More ‘round’ yolk vesicles are surrounding the ooplasm periphery (20x); d) The prominent yolk vesicles are a result of the coalescence of the prior yolk vesicles (100x) 26 Early vitellogenic stage; a) Formation of yolk globules forming an eosin-stained ring around the nucleus (20x); b) Yolk vesicles still remained at the peripheral ooplasm (100x) 27 Vitellogenesis stage; a) Yolk globules filling up the ooplasm (5x); b) Peripheral ooplasm is filled up with smaller yolk globules, striated vitelline envelope is evident (100x) 28 Late vitellogenesis stage; a) oil droplets present in the ooplasm and the start of germinal vesicle breakdown (10x); b) germinal vesicle leaves the nucleus and moves towards the animal pole at the peripheral ooplasm and yolk begins to coalesce (10x) 29 Atretic oocytes; a-b) atresia during cortical alveoli (20x); c-d) atresia during vitellogenesis (40x); e-f) final stage of atresia (100x and 20x, respectively) 30 Resting ovarian stage (from a sample of 1600g BW, 43cm SL and 0.25 GSI) 31 Ovarian development at GSI ≤ 1.0; a) Progressing - maturing (from a sample of 910g BW, 45cm SL and 0.14 GSI); b) Regressing - spent (from a sample of 710g BW, 43cm SL and 0.44 GSI). 81 82 83 84 85 86 87 88 xvii
Page 1 and 2: UNIVERSITI PUTRA MALAYSIA MORPHOLOG
Page 3 and 4: MORPHOLOGY AND GENERAL REPRODUCTIVE
Page 5 and 6: Abstract of thesis presented to the
Page 7 and 8: Abstrak tesis yang dikemukakan kepa
Page 9 and 10: ACKNOWLEDGEMENTS In the name of All
Page 11 and 12: This thesis submitted to the Senate
Page 13 and 14: TABLE OF CONTENTS DEDICATION ABSTRA
Page 15 and 16: LIST OF TABLES Table Page 1 Subgene
Page 17: LIST OF FIGURES Figure 1 Taxonomic
Page 21 and 22: LIST OF ABBREVIATIONS Analysis of V
Page 23 and 24: A number of species of the family P
Page 25: Reproductive biology has served num

MORPHOLOGY AND GENERAL REPRODUCTIVE STAGES OF ...

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