Assessment of gonad staging systems and other ... - CiteSeerX

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Plate 11. Close-up macroscopic views of developed (F4) ovarian tissue. The top photograph shows bloodvessels and opaque yolk globule stage oocytes viewed through the ovarian wall. In the bottomphotograph the ovary has been cut to expose the tightly packed yolk globule stage oocytes within thelamellae.6 Fish. Res. Rep. West. Aust.2001, 136, 1-12 Insert
*YGPlate 12. Whole and sectioned views of an early developed (F4) ovary. In the sectioned view the yolk globulestage oocytes (YG) are not fully developed, with relatively small yolk globules that do not yet fill theoocyte. Previtellogenic oocytes such as the one marked with an asterix are also still prominent.Compare this ovary with the fully developed ovary in Plate 10. Scale bar = 300 mm. Fork length offish: 926 mm.YGPlate 13. Whole and sectioned views of a developed (F4) ovary that was frozen after capture, causing the yolkglobules to rupture and coalesce in the yolk globule stage oocytes (YG). Note that it is often difficult todistinguish the effects of freezing from real processes such as oocyte atresia and final oocytematuration. Scale bar = 300 mm. Fork length of fish: 1390 mm.Plate 14. Whole developed (F4) ovaries. The ovary on the left is fresh whilst that on the right has been frozen,giving it a flaccid appearance due to rupture of cells and release of their contents within the tissue.Fork length of fish: 990 and 1500 mm, respectively.Fish. Res. Rep. West. Aust. 72001, 136, 1-12 Insert
Page 1 and 2: FISHERIES RESEARCH REPORT NO. 136,
Page 3 and 4: ContentsPageAbstract ..............
Page 5 and 6: Assessment of gonad staging systems
Page 7 and 8: commerson stocks within WA waters.
Page 9 and 10: were thawed in freshwater prior to
Page 11 and 12: the lamellae the estimate of batch
Page 13 and 14: Table 2.Descriptions used to catego
Page 15 and 16: Table 5.Results of t-tests for depe
Page 17 and 18: 3.1.2 TestesS. commerson testes are
Page 19 and 20: F5b (Spawning/Running Ripe)F5c (Pos
Page 21 and 22: wrongly called F1, mainly because c
Page 23 and 24: Table 8.Simplified macroscopic stag
Page 25 and 26: 1 1a 2 3 4 5a 5c 610014 60 4 54 143
Page 27 and 28: similar data for the tropical snapp
Page 29 and 30: 5.0 AcknowledgementsThe assistance
Page 31 and 32: 7.0 AppendicesAPPENDIX A. Field sam
Page 33 and 34: F5b (Spawning)F5c (Post-spawn)F6 (S
Page 35 and 36: APPENDIX D. Fecundity analysis work
Page 37 and 38: List of PlatesABPlate 1.In situ vie
Page 39 and 40: CA*Plate 7.Whole and sectioned view
Page 41: CAPlate 9.Whole and sectioned views
Page 45 and 46: HyHyPlate 18. Sectioned views of th
Page 47 and 48: Plate 21. Whole views of pre-spawni

Assessment of gonad staging systems and other ... - CiteSeerX

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