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Figure 8 in The developmental variations of the sagitta otolith in the young and mature male of a hermaphrodite polynemidae fish, Eleutheronema tetradactylum (Shaw, 1804)

Figure 8. Relationships of the body size groups with the different sagitta constituents: (A) width between ventral margin to crista inferior (CriV); (B) width of the groove of mid dorsal margin (MdGW); (C) depth of the groove of mid dorsal margin (MdGD).

Figure 3 in The developmental variations of the sagitta otolith in the young and mature male of a hermaphrodite polynemidae fish, Eleutheronema tetradactylum (Shaw, 1804)

Figure 3. Comparative relationships between sagitta length, width and weight and fork length in the four groups of Eleutheronema tetradactylum. Here and in Fig. 4: group I (Gr-I) – 11-12 cm FL, group II (Gr-II) – 15-16 cm FL, group III (Gr-III) – 19-20 cm FL, group IV (Gr-IV) – 23-24 cm FL.

Figure 2 in The developmental variations of the sagitta otolith in the young and mature male of a hermaphrodite polynemidae fish, Eleutheronema tetradactylum (Shaw, 1804)

Figure 2. Scanning electron micrographs (SEM) of the medial surface of right sagittae of Eleutheronema tetradactylum: (A) Gr-I, smooth outer margin; (B) Gr-II, pointed antirostrum, deep dorsal depression and bent caudal end with growth stripes, the caudal colliculum includes numerous buttons like concretions, mid-dorsal groove (white arrow); (C) Gr-III, developed rostrum & blunt antirostrum, growth stripes on the ventral wall of sulcus, shallow dorsal depression; (C) Gr-IV, blunt antirostrum, bent caudal end, reduced dorsal depression, granular caudal colliculum.

Figure 6 in The developmental variations of the sagitta otolith in the young and mature male of a hermaphrodite polynemidae fish, Eleutheronema tetradactylum (Shaw, 1804)

Figure 6. Relationships of the body size groups with different sagitta constituents: (A) rostrum length (RL); (B) antirostrum length (ArL); (C) width of excisura major (ExW); (D) ostium length (OL); (E) ostium width (OW); (F) cauda length (Cl).

Figure 5 in The developmental variations of the sagitta otolith in the young and mature male of a hermaphrodite polynemidae fish, Eleutheronema tetradactylum (Shaw, 1804)

Figure 5. Relationships of the body size groups with different sagitta features: (A) sagitta length (OL); (B) sagitta width (OW); (C) sagitta weight (Owt); (D) sulcus length (SL); (E) sulcus width (SW); (F) sulcus depth (SD).

Figure 1 in The developmental variations of the sagitta otolith in the young and mature male of a hermaphrodite polynemidae fish, Eleutheronema tetradactylum (Shaw, 1804)

Figure 1. Schematic diagram of a typical sagitta (right) showing various characteristics on the medial surface of Eleutheronema tetradactylum. Abbreviation here and in Fig. 2: A, anterior side; Ar, antirostrum; Cbl, caudal bulb; Cc, caudal colliculum; Ci, crista inferior; Co, concretion; Cs, crista superior; D, dorsal side; Dd, dorsal depression; Os, ostium; P, posterior side; R, rostrum; V, ventral side; zigzag arrow, growth stripes; arrow head, excisura major; arrow, mid-dorsal groove; double arrow, width between posterior caudal end and the postero-ventral margin, asterisk, 'V'-shaped ridge at the junction of ostium and cauda.

Figure 7 in The developmental variations of the sagitta otolith in the young and mature male of a hermaphrodite polynemidae fish, Eleutheronema tetradactylum (Shaw, 1804)

Figure 7. Relationships of the body size groups with different sagitta constituents: (A) cauda width (CW); (B) length of caudal bulb (Cbl); (C) width between posterior caudal end and the postero-ventral margin (CPVM); (D) width between dorsal margin to crista superior (CrsD).

Figure 5 in Sagitta otolith of three demersal species in a tropical environment

Figure 5. Length-weight relationship for (A) Polydactylus virginicus, (B) Menticirrhus cuiaranensis, and (C) Conodon nobilis; otolith length vs fish total length for (D) Polydactylus virginicus, (E) Menticirrhus cuiaranensis, and (F) Conodon nobilis; and otolith height vs fish total length for (G) Polydactylus virginicus, (H) Menticirrhus cuiaranensis, and (I) Conodon nobilis.

Figure 4 in Sagitta otolith of three demersal species in a tropical environment

Figure 4. Box plot (mean and standard deviation) of morphometric parameters and shape indices of the otolith sagitta of Polydactylus virginicus, Menticirrhus cuiaranensis and Conodon nobilis per class of total length: (A) otolith length (OL), (B) otolith height (OH), (C) Aspect ratio OL/TL, (D) Aspect ratio (OH/OL) × 100 and (E) ellipticity.

Figure 3 in Sagitta otolith of three demersal species in a tropical environment

Figure 3. Frequency distribution of the total length (cm) of Polydactylus virginicus, Menticirrhus cuiaranensis and Conodon nobilis sampled in a tropical environment in Southwestern Atlantic.

Figure 2 in Sagitta otolith of three demersal species in a tropical environment

Figure 2. Length and height of sagittae otoliths for: (A) Polydactylus virginicus; (B) Menticirrhus cuiaranensis; and (C) Conodon nobilis.

Figure 1 in Sagitta otolith of three demersal species in a tropical environment

Figure 1. Map of the coastal region of the state of Sergipe showing all the beaches where samples were collected during competitive fishing events in 2014-2015.

Figure 6 in Sagitta otolith of three demersal species in a tropical environment

Figure 6. Scatterplot of the linear discriminant analysis of morphometry and shape indices of the sagitta otolith of Polydactylus virginicus, Menticirrhus cuiaranensis and Conodon nobilis.

Figure 7 in Ontogenetic and sexual variation in the sagitta otolith of Menticirrhus americanus (Teleostei; Sciaenidae) (Linnaeus, 1758) in a subtropical environment

Figure 7. Scatterplot of the principal component analysis of the contour of the sagitta otolith of Menticirrhus americanus along its ontogeny sampled in two subtropical environments in the Southwestern Atlantic.

Figure 3. Otolith contour using 512 in Ontogenetic and sexual variation in the sagitta otolith of Menticirrhus americanus (Teleostei; Sciaenidae) (Linnaeus, 1758) in a subtropical environment

Figure 3. Otolith contour using 512 equidistant point in the otolith the Menticirrhus americanus para a in a subtropical environment: D = dorsal region of otolith,V = ventral region of otolith, A = anterior region of otolith and P = posterior region of otolith.

Figure 4 in Ontogenetic and sexual variation in the sagitta otolith of Menticirrhus americanus (Teleostei; Sciaenidae) (Linnaeus, 1758) in a subtropical environment

Figure 4. Frequency distribution of the total length (mm) of the Menticirrhus americanus in two environments in the Subtropical Southwestern Atlantic.

Figure 9 in Ontogenetic and sexual variation in the sagitta otolith of Menticirrhus americanus (Teleostei; Sciaenidae) (Linnaeus, 1758) in a subtropical environment

Figure 9. Decomposition of the contour of the sagitta otoliths of males and females of Menticirrhus americanus, on the x-axis there are 512 Cartesian coordinates of the contour, y-axis, the means of the points. Females are black lines and males are gray lines. Circle in wavelet 4 to highlight more discrepant region between males and females.

Figure 10 in Ontogenetic and sexual variation in the sagitta otolith of Menticirrhus americanus (Teleostei; Sciaenidae) (Linnaeus, 1758) in a subtropical environment

Figure 10. Decomposition of the contour of the sagitta otoliths of adult and young females of Menticirrhus americanus, on the x-axis there are 512 Cartesian coordinates of the contour, y-axis, the means of the points. Young females are the black lines and adult females, the gray lines.

Figure 8 in Ontogenetic and sexual variation in the sagitta otolith of Menticirrhus americanus (Teleostei; Sciaenidae) (Linnaeus, 1758) in a subtropical environment

Figure 8. Decomposition of the contour of the sagitta otoliths throughout the ontogeny of Menticirrhus americanus, on the x-axis there are 512 Cartesian coordinates of the contour, y-axis, the means of the points. Interval class: dark blue 110-150 mm, orange 160-200 mm, grey 210-250 mm, yellow 260-300 mm and light blue 310-350 mm.

Figure 11 in Ontogenetic and sexual variation in the sagitta otolith of Menticirrhus americanus (Teleostei; Sciaenidae) (Linnaeus, 1758) in a subtropical environment

Figure 11. Scatterplot of the principal component analysis of the contour of the sagitta otolith of males (blue circles), females (red circles), young females (green square) Menticirrhus americanus in an estuarine beach of a subtropical environments in the Subtropical Southwestern Atlantic.