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4 results for “Zungaro”
Fig. 1 in Induced spawning and early ontogeny in hatchery-reared catfish Zungaro jahu (Siluriformes: Pimelodidae)
Fig. 1. Steromicroscopic images of fresh oocytes (a; 1.6 mm in diameter), eggs (b-k; ~2.4 mm in diameter), embryos (l-m; ~2.4 mm in diameter), and free embryo (l-n; 4.3 mm TL) of jahu in hatchery conditions. a) recently spawned oocyte covered by the jelly coat (arrow); b) egg showing a large perivitelline space and two blastomeres of same size (45 min post fertilization, PF); c) dorsal view of egg seen in b; d) egg with four blastomeres of same size (50 min PF); e) egg with eight blastomeres of same size (50 min PF); f) egg with sixteen blastomeres of same size (1 h 15 min PF); g) egg with thirty-two blastomeres of same size (1 h 20 min PF); h) morula stage (2 h 10 min PF); i) half of the yolk sphere (circa 50% epiboly) was covered with the blastoderm (4 h 50 min PF); j) formation of the yolk plug circa 90% epiboly (6 h 30 min PF); k) end of epiboly with closure of embryo ring (blastopore) (7 h 30 min PF); l) embryo exhibiting optic calyx (OC), otic vesicle (OV), Kupffer's vesicle (KV), and 13 somites (10 h 30 min); m) embryo within egg envelop exhibiting free, beating tail (13 h 30 min PF); n) free embryo, the almost transparent body is involved by the primordial fin fold; head and anterior part of body over the yolk sac; non-pigmented retina; mouth is closed; notochord slightly flexed; 39.1 ± 2.0 miotomes (circa 6 h post hatching).
Fig. 2 in Scientific Note Radiotelemetry of a female jaú, Zungaro jahu (Ihering, 1898) (Siluriformes: Pimelodidae), passed upstream of Funil Dam, rio Grande, Brazil
Fig. 2. Movements of jaú in Funil Reservoir, rio Grande, and rainfall in rio das Mortes. The y-axis on the left shows distances to Funil Dam. The horizontal dashed line indicates the location of the rio das Mortes mouth before it was flooded.
Fig. 1 in Scientific Note Radiotelemetry of a female jaú, Zungaro jahu (Ihering, 1898) (Siluriformes: Pimelodidae), passed upstream of Funil Dam, rio Grande, Brazil
Fig. 1. Map of Funil Reservoir showing locations (%) of the tagged jaú. Location numbers as in Table 1.
Fig. 2 in Induced spawning and early ontogeny in hatchery-reared catfish Zungaro jahu (Siluriformes: Pimelodidae)
Fig. 2. Drawings of free embryos (a-c), larvae (d-e) and juvenile (f) of hatchery - raised jahus. a) free embryo (18 h post hachting, HPH; 5.3 mm TL) presenting pigmented retina, opened mouth and slightly pigmented primordial fin fold; bar = 0.5 mm. b) free embryo (24 HPH, 5.9 mm TL) showing developing mental barbel and pigmented primordial fin fold except in the caudal portion; bar= 0.5 mm. c) free embryo (36 HPH, 6.4 mm TL) showing growing mental barbels, primordial fin fold chromatophores vertically arranged, yolk sac well reduced in size, outline of adipose fin was present, dorsoflexion of notochord was completed; bar = 0.5 mm. d) larva (128 HPH, 8.6 mm TL) showing developing maxillary and mental barbels, outline of pelvic, and anal fins; bar = 0.5 mm. e) larva (152 HPH, 14.4 mm TL) in which pectoral, dorsal and caudal fins are seen; bar = 1.0 mm. f) juvenile jahu (224 HPH, 16.6 mm TL); bar = 1.0 mm.
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