Figure 1
Figure 2
Morphometric and meristic characteristics of Siganus sutor collected from Shatt al-Basrah Canal, Basrah, southern Iraq
| Morphometric characters (mm) | Present study | Barik et al. (2020) | Woodland (1990) | |
|---|---|---|---|---|
| Specimen no. 1 | Specimen no. 2 | |||
| Total length (TL) | 127 | 129 | 170 | 150 |
| Standard length (% in TL) (SL) | 103 (81.1), | 105 (81.4) | 145 | 134 |
| Head length (% in SL) | 28.4 (27.6) | 28.3 (27.0) | 25.5 | 23.9 |
| Head depth (% in SL) | 30.5 (29.6) | 30.7 (29.2) | – | – |
| Interorbital width (% in HL) | 8.0 (28.2) | 8.1 (28.6) | – | – |
| Preorbital length (% in HL) | 10.6 (37.3) | 10.8 (38.2) | 43.4 | – |
| Eye diameter (% in HL) | 10.8 (38.0) | 10.6 (37.5) | 32.4 | 31.3 |
| Postorbital length (% in HL) | 8.0 (28.2) | 9.2 (32.5) | – | 30.5 |
| Pre-dorsal fin length (% in SL) | 31.5 (30.6) | 32.6 (31.1) | 28.3 | 22.4 |
| Pre-pectoral fin length (% in SL) | 24.1 (23.4) | 24.8 (23.6) | 24.8 | 24.6 |
| Pre-pelvic fin length (% in SL) | 33.2 (32.3) | 32.8 (31.2) | 31.7 | 30.6 |
| Pre-anal fin length (% in SL) | 54.7 (53.1) | 51.7 (49.2) | 51.7 | 47.8 |
| Dorsal fin base length (% in SL) | 68.4 (66.4) | 68.4 (65.1) | 66.2 | – |
| Anal fin base length (% SL) | 41.5 (40.3), | 43.4 (41.3) | – | – |
| Caudal peduncle length (% in SL) | 12.6 (12.2) | 13.1 (12.7) | – | – |
| Caudal peduncle depth (% in SL) | 6.1 (5.9) | 6.5 (6.2) | – | – |
| Meristic characters | ||||
| Number of spines of dorsal fin | XIII | XIII | XIII | XIII |
| Number of dorsal fin rays | 10 | 10 | 10 | 10 |
| Number of anal fin ray spines | VII | VII | VII | VII |
| Number of anal fin rays | 9 | 9 | 9 | 10 |
| Number of pectoral finrays | 17 | 16 | 15 | – |
| Number of pelvic fin rays | II, 3 | II, 3 | II, 3 | – |
| Number of caudal fin rays | 17 | 17 | 18 | – |