Diplectrum radiale (Quoy & Gaimard, 1824)
(Serranidae, Perciformes)
Distribui-se da Flórida (Estados Unidos) até o Uruguai. Encontrada até 60 m de profundidade, apresenta hábitos costeiros e entra em regiões estuarinas. Alcança 20 cm de comprimento (Menezes & Figueiredo, 1980). Comedores de peixes e invertebrados bentônicos (camarões) (Soares et al., 2008).
The collection contains otoliths from 112 individuals of this species, ranging from 58 to 249 mm of total length. Click here to see the map of the sampling area for the individuals of this species. The following summaries contains data from 12 analysed otoliths. See more detailed data here (in portuguese).
Otoliths from Diplectrum radiale, with total length of A. 169mm; B. 249mm; internal side A1; B1; external side A2; B2; profile of the ventral region A3; B3; click the figures for larger version*
Morphology:
Shape: fusiform (83%), lanceolated (17%). Anterior region: peaked-round (83%), peaked (17%). Posterior region: peaked-round (50%), peaked (50%). Dorsal edge: entire (50%), sinuate to entire (33%), sinuate (17%). Ventral edge: sinuate (50%), sinuate to entire (50%). Profile: concave-convex. Rostrum and antirostrum orientation: in agreement. Rostrum: Developed. Antirostrum: underdeveloped. Pseudorostrum: absent. Pseudoantirostrum: absent. Sulcus acusticus: position median, orientation horizontal, opening ostial, morphology heterosulcoid, colliculum heteromorphic, ostium funnel-like, cauda strongly curved tubular.
Description of the terms used
Morphometry:
Shape indices | Mean ± sd | Minimum | Maximum |
---|---|---|---|
OL / TL % | 3.83 ± 0.2 | 3.39 | 4.20 |
OH / OL % | 41.68 ± 2.63 | 38.47 | 48.95 |
OT / OL % | 18.83 ± 1.65 | 16.21 | 21.68 |
OT / OH % | 45.27 ± 4.13 | 37.97 | 53.45 |
Circularity | 21.34 ± 1.09 | 20.20 | 23.32 |
Rectangularity | 0.64 ± 0.02 | 0.61 | 0.67 |
* Vouchers:
Collection identifier for the individuals shown on photography and drawings:
- 25.3.DIRA.PI.AF.9.5 (169 mm)
- 25.3.DIRA.PI.AF.9.1 (249 mm)
For more information about this species: