Find research datasets worth reusing

opencc-by-4.0Oct 2020View details →

FIGURE 3 in Reproductive biology of Parona signata (Actinopterygii: Carangidae), a valuable economic resource, in the coastal area of Mar del Plata, Buenos Aires, Argentina

FIGURE 3 | Photomicrographs of Parona signata. A: primary growth oocytes (P); B: cortical alveoli oocytes (CA); C: yolked oocytes (YO) and a post-ovulatory follicle (large arrow); D: details of a yolked oocyte (r: radiate zone; g: granulosa cells; t: theca cells); E: hydrated oocyte (arrow); F: details of a post-ovulatory follicle (arrow); G: primary growth oocytes in an adult ovary (notice the thick wall of the ovary – OW); H: atresic follicle (arrow).

opencc-by-4.0Oct 2020View details →

FIGURE 2 in Reproductive biology of Parona signata (Actinopterygii: Carangidae), a valuable economic resource, in the coastal area of Mar del Plata, Buenos Aires, Argentina

FIGURE 2 | Monthly relative frequency of the different gonadal development stages observed in females of Parona signata on the annual cycle.

opencc-by-4.0Dec 2020View details →

FIGURE 3 in Comparative analysis of the reproductive activity of Leporinus piau (Characiformes: Anostomidae) in lentic and lotic environments

FIGURE 3 | Bimonthly distribution of stages of gonadal maturation of female and male Leporinus piau in sections 1 and 2 of the São Francisco River (SFR) basin from May 2015 to April 2016.

opencc-by-4.0Dec 2020View details →

FIGURE 2 in Comparative analysis of the reproductive activity of Leporinus piau (Characiformes: Anostomidae) in lentic and lotic environments

FIGURE 2 | Histological sections of testes of Leporinus piau in different stages of gonadal maturation stained by HE. (A) At rest (M1), containing only spermatogonia (SPG) and lumen of closed seminiferous tubules. (B) Initiation of maturation with a small number of spermatozoa (SPZ) in the lumen of the seminiferous tubules. (C) Maturation/mature (M2), with seminiferous tubules filled with spermatozoa (SPZ). (D) Spent (M3), with the lumen of the seminiferous tubules open and an appreciable amount of spermatozoa. Bars: A and D = 40µm; B and C = 200µm.

opencc-by-4.0Jan 2015View details →

Fig. 2 in Difference in reproduction energy content in muscles on fish from reservoirs in Paraná State, Brazil

Fig. 2. Spatial variation (median, quartiles, maximum and minimum values) for caloric values in kcal * g-1 dry weight of males and females of Acestrorhynchus lacustris, Apareiodon vittatus, Astyanax bifasciatus, Astyanax minor, Corydoras cf. paleatus, Geophagus brasiliensis, Hoplias aff. malabaricus, Loricariichthys platymetopon, and Satanoperca pappaterra of different trophic groups (square - detritivorous, dot - invertivorous, triangle - piscivorous, cross - omnivorous) in three reservoirs in Paraná State (KW-H = values of H of Kruskal-Wallis test - *= significant difference).

opencc-by-4.0Jan 2015View details →

Fig. 3 in Difference in reproduction energy content in muscles on fish from reservoirs in Paraná State, Brazil

Fig. 3. Spatial variation (median, quartiles, maximum and minimum values) for condition factor of males and females of Acestrorhynchus lacustris, Apareiodon vittatus, Astyanax bifasciatus, Astyanax minor, Corydoras cf. paleatus, Geophagus brasiliensis, Hoplias aff. malabaricus, Loricariichthys platymetopon, and Satanoperca pappaterra of different trophic groups (square - detritivorous, dot - invertivorous, triangle - piscivorous, cross - omnivorous) in three reservoirs in Paraná State (KW-H = values of H of Kruskal-Wallis test - *= significant difference).

Fig. 11 in Reproductive biology of Cetengraulis edentulus (Cuvier, 1829), the major fishery resource in Guanabara Bay, Brazil

Fig. 11. Relation between the oocytes mean diameter with the gonadosomatic index (A) and with the condition factor (B) of Cetengraulis edentulus in Guanabara Bay. Lines represent the generalized additive models selected by the Akaike information criterion.

Fig. 10 in Reproductive biology of Cetengraulis edentulus (Cuvier, 1829), the major fishery resource in Guanabara Bay, Brazil

Fig. 10. Relation between fecundity with total length (A) and fullness index (B) and between fecundity residuals (after controlling for the length effect) with gonadosomatic index (C) for Cetengraulis edentulus in Guanabara Bay. Lines represent the generalized additive models selected by the Akaike information criterion.

Fig. 7 in Reproductive biology of Cetengraulis edentulus (Cuvier, 1829), the major fishery resource in Guanabara Bay, Brazil

Fig. 7. Mean values (± standard error) of the condition factor among months and seasons (black square = females; white circle = males) of Cetengraulis edentulus in Guanabara Bay.

Fig. 4 in Reproductive biology of Cetengraulis edentulus (Cuvier, 1829), the major fishery resource in Guanabara Bay, Brazil

Fig. 4. Mean values (± standard error) of gonadosomatic index (GSI) among months and seasons (black square = females; white circle = males) of Cetengraulis edentulus in Guanabara Bay.

Fig. 6 in Reproductive biology of Cetengraulis edentulus (Cuvier, 1829), the major fishery resource in Guanabara Bay, Brazil

Fig. 6. Variation of the index of reproductive activity (IRA) for female Cetengraulis edentulus among months and seasons in Guanabara Bay.

Fig. 3 in Reproductive biology of Cetengraulis edentulus (Cuvier, 1829), the major fishery resource in Guanabara Bay, Brazil

Fig. 3. Seasonal variation in percent (%) frequency of occurrence of gonad maturation stages (GMS) for females (white column) and males (black column) of Cetengraulis edentulus in Guanabara Bay.

Fig. 5 in Geometric morphometric analysis of cyclical body shape changes in color pattern variants of Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae) demonstrates reproductive energy allocation

Fig. 5. Relative mean GSI vs. relative mean HSI of color pattern variants of Cichla temensis. Points for GSI represent the mean value for each CPV grade as compared to the range encountered. Points for HSI represent the mean value for each CPV grade compared to the range encountered.

Fig. 3 in Geometric morphometric analysis of cyclical body shape changes in color pattern variants of Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae) demonstrates reproductive energy allocation

Fig. 3. Biplot of the uniform components in each direction (UniX and UniY) of morphometrical differences in 80 specimens of Cichla temensis in 4 color variation patterns (CPV) as measured by 9 Thin Plate Spline (TPS) distortion variables (V1-V9). Colored numbers indicate the CPV grade of individuals. The total spread of scores among individuals of each CPV are indicated by an envelope (solid line polygon) calculated as the minimum convex hull for that group. Position in the plot relative to other individuals indicates the degree of similarity in morph. Vectors point in the direction of gradient change for that TPS variable and the magnitude indicates the strength of the gradient. Angles between vectors indicate the TPS interset correlations.

Fig. 1 in Induced reproduction in a migratory teleost species by water level drawdown

Fig. 1. Photomicrographs of gonads of Astyanax altiparanae over the sampling times (stained with hematoxylin-eosin). (A) Ovary in spawning capable phase from -4h to 4h; (B) Ovary in the same phase but with post-ovulatory complexes presents in 8h and 12h; (C) Ovary in the advanced actively spawning subphase of the spawning capable phase at 16h; (D) Ovary during regressing phase from 20h to 28h; (E) Testis in spawning capable phase from -4h to 8h; (F) Testis in the advanced actively spawning subphase of the spawning capable phase at 12h; (G) Testis returning the primary spawning capable phase from 16h to 28h. In - initial oocytes; Pvt - pre-vitellogenic oocytes; Vt - vitellogenic oocytes; POC - post-ovulatory complexes; GVBD - mature oocytes (oocytes with germinal vesicle breakdown); Atr - atresias; Sc1 - primary spermatocyte; Sc2 - secondary spermatocyte; St - spermatids; Sz - spermatozoids.

Fig. 6. A and C in Reproductive studies of Anchoa marinii Hildebrand, 1943 (Actinopterygii: Engraulidae) in the nearby-coastal area of Mar Chiquita coastal lagoon, Buenos Aires, Argentina

Fig. 6. A and C: Batch fecundity as a function of total length and total weight (without ovary), respectively. B and D: relative fecundity as a function of total length and total weight (without ovary), respectively.

Fig. 8 in Reproductive studies of Anchoa marinii Hildebrand, 1943 (Actinopterygii: Engraulidae) in the nearby-coastal area of Mar Chiquita coastal lagoon, Buenos Aires, Argentina

Fig. 8. Proportion of mature individuals observed for each length classes of Anchoa marinii. A. Females, B. Males.

Fig. 7 in Reproductive studies of Anchoa marinii Hildebrand, 1943 (Actinopterygii: Engraulidae) in the nearby-coastal area of Mar Chiquita coastal lagoon, Buenos Aires, Argentina

Fig. 7. Monthly variation of the gonadosomatic index (GSI), based on an annual cycle. Boxplots with median, 75th percentile and 25th percentile. Bars denote standard deviation. Open circles= outlier values; asterisk= extreme outliers.

Fig. 4 in Reproductive studies of Anchoa marinii Hildebrand, 1943 (Actinopterygii: Engraulidae) in the nearby-coastal area of Mar Chiquita coastal lagoon, Buenos Aires, Argentina

Fig. 4. Stages of oocyte development of Anchoa marinii. A, oogonias (o) and primary growth (p) oocytes; B, cortical alveoli stage oocyte (arrow); C, yolked oocytes (arrow); D, details of a yolked oocyte (r: radiata zone; g: granulosa cells; t: teca cells); E, migration of the nucleus (n); F, hydrated oocytes; G, atretic follicle; H, post- ovulatory follicle (arrow). Scale bars: A, B, D, 20 µm; C, E, F, G, H, 70 µm.

Fig. 2 in Induced reproduction in a migratory teleost species by water level drawdown

Fig. 2. Quantitative analyses of the gonads. (A) Plot of female germ cells proportion though sampling times; (B) Variation in female gonadosomatic index (GSI) over the sampling times (H=16.388, p=0.037); (C) Plot of male germ cells proportion though sampling times; (D) Variation in male gonadosomatic index (GSI) over the sampling times (F=1.806, p=0.120).