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400 results for “Gonad”
Fig. 2 in Fig. 7 in Reproduction of the Blue Jack Mackerel, , in Western Portugal: Microscopic Gonad Analysis Reveals Indeterminate Fecundity and Skipped Spawning Patterns.
Fig. 2. Maturity phase frequency by sampling date for blue jack mackerel (Trachurus picturatus) females and males caught off the western coast of Portugal. D, developing; SC, spawning capable; AS, actively spawning; RS, regressing; RN, regenerating. 1st half, month first fortnight; 2nd half, month second fortnight.
Fig. 6 in Fig. 7 in Reproduction of the Blue Jack Mackerel, , in Western Portugal: Microscopic Gonad Analysis Reveals Indeterminate Fecundity and Skipped Spawning Patterns.
Fig. 6. Fecundity type of blue jack mackerel (Trachurus picturatus) off the western coast of Portugal, assessed from the variation throughout the spawning season of a) oocyte size frequency distribution; b) abundance of early developing oocytes (white) and advanced vitellogenic oocytes (grey); c) mean oocyte diameter (OD) of the advanced vitellogenic oocytes. Boxplot represents median, first and third quartiles, whiskers represent 1.5 × interquartile range and dots are possible outliers. 1st half, month first fortnight; 2nd half, month second fortnight.
Fig. 1 in Fig. 7 in Reproduction of the Blue Jack Mackerel, , in Western Portugal: Microscopic Gonad Analysis Reveals Indeterminate Fecundity and Skipped Spawning Patterns.
Fig. 1. Map of Portugal showing the continental slope: the surveys were conducted along the coast at 20–300 m deep (represented by the rectangle in the figure).
Fig. 1 in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 1. Prof. Dr. Brian Timms in his natural habitat: Sue's Clay Pan, Bloodwood Station, New South Wales, Australia, 24 July 2014 (photo by D.C. Rogers).
Fig. 14. A in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 14. A Bayesian inference (BI) tree for Austruca citrus n. sp. and A. perplexa (H. Milne Edwards, 1852), with outgroups of other congeneric species, based on cytochrome c oxidase subunit I (COI) gene. Probability values at nodes represent support values for BI, maximum likelihood (ML) and maximum parsimony (MP). For haplotype identities, see table 1.
Fig. 12 in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 12. Color in life of Austruca citrus n. sp. (male, CW 14.6 mm, ZRC 2019.1317) from Fiji (A, B) and its habitat in Denarau mangroves, Nadi, Fiji (C). A, dorsal view; B, frontal view. Courtesy of Bee Yan Lee.
Fig. 10 in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 10. Austruca perplexa (H. Milne Edwards, 1852). A–F, male; G–H, female. A, E, CW 14.9 mm (NCHUZOOL 15057), Singapore; B, CW 12.0 mm (NCHUZOOL 15042), Bohol, Philippines; C, specimen not collected, Penghu, Taiwan; D, H, specimens not collected, Dongsha, Taiwan; F, CW 12.0 mm (NCHUZOOL 15060), Bali, Indonesia; G, CW 9.7 mm (NCHUZOOL 15050), Kuching, Sarawak, Malaysia.
Fig. 11. Austruca citrus n in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 11. Austruca citrus n. sp. A–E, male; F, female. A, CW 11.1 mm (MNHN-IU-2017-9122), Wallis & Futuna; B–F, specimens not collected, Fiji. G– H, a population with high density. B, G, courtesy of Mark Rosenstein; C–F, H, courtesy of Rocio Gajon Bunker.
Fig. 9 in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 9. Urocardiac ossicles of Austruca perplexa (H. Milne Edwards, 1852) (A–C) and A. citrus n. sp. (D). A, male, CW 13.6 mm (NCHUZOOL 15056), Mersing, Malaysia; B, male, CW 14.2 mm (NTOU), Taitung, Taiwan; C, male, CW 12.5 mm (QM W19270), Queensland, Australia; D, male, CW 11.1 mm (MNHN-IU-2017-9122), Wallis & Futuna. Scale bars = 0.2 mm.
Fig. 5 in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 5. Austruca perplexa (H. Milne Edwards, 1852) (A, C) and A. citrus n. sp. (B, D, E). A, B, carapace; C–E, major chela. A, C, male (NCHUZOOL 15053; CW 15.6 mm, PL 25.6 mm; Negeri Sembilan, Malaysia); B, D, holotype of A. citrus (MNHN-IU-2017-9121; CW 10.9 mm, CL 6.7 mm, PL 17.6 mm; Wallis & Futuna); E, male (UF 3843; CW 12.9 mm, PL 25.6 mm; Fiji).
Fig. 7 in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 7. Carapaces of male Austruca perplexa (H. Milne Edwards, 1852) (A–C, F, G) and A. citrus n. sp. (D, E, H). A, male, CW 17.3 mm (NCHUZOOL 15046), Kuching, Sarawak, Malaysia; B, male, CW 12.5 mm (QM W19270), Queensland, Australia; C, male, CW 12.0 mm (ZRC 1995.966), Queensland, Australia; D, male, CW 12.7 mm (MNHN-IU-2017-9123), Wallis & Futuna; E, male, CW 11.0 mm (UF 1488), Fiji; F, female, CW 13.7 mm (NCHUZOOL 14643), Tainan, Taiwan; G, female, CW 11.3 mm (NCHUZOOL 15052), Selangor, Malaysia; H, female, CW 11.7 mm (MNHN-IU-2017-9122), Wallis & Futuna.
Fig. 8 in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 8. Major chelae of Austruca perplexa (H. Milne Edwards, 1852) (A–D) and A. citrus n. sp. (E–H). A, CW 17.3 mm (NCHUZOOL 15046), Kuching, Sarawak, Malaysia; B, CW 14.9 mm (NCHUZOOL 15058), Singapore; C, CW 12.5 mm (QM W19270), Queensland, Australia; D, CW 12.0 mm (ZRC 1995.966), Queensland, Australia; E, CW 12.7 (SMF 5675), Samoa; F, CW 12.0 mm (MNHN-IU-2017-9123), Wallis & Futuna; G, CW 11.6 mm (UF 1488), Fiji; H, CW 11.0 mm (UF 1488), Fiji.
Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 2. Gonadal development during Yntema stages 15, 17, 19, and 25 when incubated at the MPT (26°C) or FPT (32°C). Location of the gonad at Yntema stages (a, b) 15 (black arrows), (c) 17 (MPT), (d) 17 (FPT), (e) 19 (MPT), (f) 19 (FPT), (g) 25 (MPT), and (h) 25 (FPT). C = cortical region or outer layer of tissue immediately below the epithelium; F = ovarian follicle; M = medullar region or the inner region of the gonad which is distinguishable from the outer region; SC = medullary sex cord; ST = seminiferous tubule; an asterisk indicates an area with germ cell division; a star indicates an area with cortical development.
Fig. 2. I in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 2. I llustrations of syntypes of Gelasimus perplexus, G. annulipes and Uca annulipes var. orientalis (A–C), and specimen of A. perplexa from Borneo (D). A, Gelasimus perplexus H. Milne Edwards, 1852 (after H. Milne Edwards 1852: pl. 4(18a)); B, Gelasimus annulipes H. Milne Edwards, 1837 (after H. Milne Edwards 1852: pl. 4(15b); C, Uca annulipes var. orientalis Nobili, 1901 (after Nobili 1901: fig. A); D, specimen from Buntal, Kuching, Sarawak, Malaysia (after Maccagno 1928: fig. 21).
Fig. 1 in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 1. Collection sites for specimens of Austruca citrus n. sp. and A. perplexa (H. Milne Edwards, 1852) used in this study: blue solid squares (nos. 1–3) for A. citrus and pink solid circles (nos. 4–33) for A. perplexa (see Table 1). Blue empty square and pink empty circles indicate additional records of the two species from other references (see synonymy under A. perplexa). Different lines indicate the updated ranges of the two species.
Fig. 6. G1s in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 6. G1s of Austruca citrus n. sp. (A–D, J) and A. perplexa (H. Milne Edwards, 1852) (E–I). A–D, G–J, right G1; E–F, left G1. A, E, mesial view; B, G–J, mesial view of distal part; C, F, lateral view D, lateral view of distal part. A–D, holotype, CW 10.9 mm, MNHN-IU-2017-9121, Wallis & Futuna; J, paratype, CW 12.0 mm, MNHN IU-2017-9123, Wallis & Futuna; E–F, paralectotype, MNHN-IU-2008-10646, CW ~15–16 mm, Java; G, CW 15.2 mm, ZRC 2020.0288, Singapore; H, CW 17.5 mm, NCHUZOOL 14636; I, CW 12.5 mm, QM W19270. Scale bars: A–D = 2.0 mm; G–J = 0.5 mm.
Fig. 3 in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 3. The syntypes of Gelasimus perplexus H. Milne Edwards, 1852 (MNHN-IU-2008-10646). A–C, male paralectotype, rehydrated specimen; D–E, male lectotype, dry specimen. A, B, outer and inner surfaces of major cheliped (PL 17 mm); C, broken carapace, CW ~15–16 mm; D, carapace, CW 13.8 mm; E, outer surface of major cheliped, PL 25.7 mm.
Fig. 4 in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.
Fig. 4. Holotype of Austruca citrus n. sp. (MNHN-IU-2017-9121; CW 10.9 mm). A, dorsal view; B, major chela; C, pleon and telson; D, third maxillipeds. Scale bars: A, B = 5.0 mm; C, D = 2.0 mm.
Figures 1-6 in Gonadal development and fecundity of the smooth weakfish Cynoscion leiarchus (Teleostei: Perciformes: Sciaenidae) in a tropical Brazilian bay
Figures 1-6. Photomicrographs of ovarian (1-4) and testicular (5-6) histology illustrating oocytes and spermatocytes at different development stages of C. leiarchus: (1-2) regenerating ovarian phase; (3) spawning capable ovarian phase; (4) actively spawning subphase; (5- 6) spawning capable testis phase. (PG) Primary growth, (MB) muscle bundle, (CA) cortical alveolar, (OW) ovarian wall, (Vtg1) primary vitellogenic, (Vtg2) secondary vitellogenic, (Vtg3) tertiary vitellogenic, (A) atresia POF: postovulatory follicle complex, (GVM) germinal vesicula migration, (GVBD) germinal vesicular breackdown, (Sg1) primary spermatogonia, (Sz) spermatozoa, (Cy) spermatocyst.
8 9 10 11 Figures 8-11 in Gonadal development and fecundity of the smooth weakfish Cynoscion leiarchus (Teleostei: Perciformes: Sciaenidae) in a tropical Brazilian bay
8 9 10 11 Figures 8-11. Relationship between batch fecundity and gonad weight (8), total weight (9), total length (10), and age (11) of Cynoscion leiarchus in Sepetiba Bay.
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