Published December 31, 2009
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Table 1 in A redescription of Astyanax gymnodontus (Eigenmann, 1911), new combination, a polymorphic characid fish from the rio Iguaçu basin, Brazil
- 1. Núcleo de Pesquisas em Limnologia, Ictiologia eAqüicultura (Nupélia), Universidade Estadual de Maringá. Av. Colombo, 5790, 87020 - 900 Maringá, PR, Brazil
Description
Table 1. Variable loadings for the principal component analysis of the three morphotypes of Astyanax gymnodontus. Truss measurements (numbers) are indicated with landmarks (letters) shown according to Fig. 1. The following abbreviations were used: maxil. comm.: maxillary commissure; supraoc. process: supraoccipital process. The modular higher eigenvectors of principal component 2 are shown in bold (see text for details).
| Measurements | Principal component 1 | Principal component 2 |
|---|---|---|
| Traditional | ||
| Standard length | 0.175475 | -0.015037 |
| Body depth | 0.174313 | -0.156548 |
| Caudal-peduncle depth | 0.170235 | -0.073316 |
| Caudal-peduncle length | 0.187413 | -0.020009 |
| Pectoral-fin length | 0.177764 | -0.009366 |
| Pelvic-fin length | 0.154618 | -0.016221 |
| Anal-fin length | 0.136927 | 0.029081 |
| Anal-fin base length | 0.150861 | 0.043254 |
| Dorsal-fin length | 0.151245 | 0.181314 |
| Head length | 0.173240 | 0.273335 |
| Snout length | 0.169509 | 0.006538 |
| Predorsal length | 0.092302 | 0.161657 |
| Orbital diameter | 0.174891 | 0.235477 |
| Interorbital distance | 0.171353 | 0.373986 |
| Jaw width | 0.174478 | -0.049973 |
| Trusses | ||
| 1. Dorsal-fin base length (C-D) | 0.162773 | -0.219392 |
| 2. Adipose fin to anal-fin end (E-F) | 0.167340 | -0.219216 |
| 3. Dorsal-fin end to anal-fin end (D-F) | 0.171181 | -0.187796 |
| 4. Maxillary commissure to isthmus (J-I) | 0.139956 | 0.237986 |
| 5. Dorsal fin to pelvic fin (C-G) | 0.173826 | -0.183431 |
| 6. Dorsal fin to supraoc. process (C-B) | 0.195386 | -0.130169 |
| 7. Dorsal fin to pectoral fin (C-H) | 0.176424 | -0.048835 |
| 8. Pectoral fin to pelvic fin (H-G) | 0.189786 | -0.122772 |
| 9. Dorsal-fin end to pectoral fin (D-H) | 0.172025 | -0.077577 |
| 10. Pelvic fin to adipose fin (G-E) | 0.173087 | -0.191607 |
| 11. Pelvic fin to anal-fin end (G-F) | 0.174761 | -0.174482 |
| 12. Dorsal-fin end to pelvic fin (D-G) | 0.172729 | -0.185088 |
| 13. Dorsal-fin end to adipose fin (D-E) | 0.188709 | -0.230129 |
| 14. Snout to maxillary commissure (A-J) | 0.179986 | 0.155008 |
| 15. Snout to isthmus (A-I) | 0.142941 | 0.278733 |
| 16. Snout to supraoccipital process (A-B) | 0.144155 | 0.161641 |
| 17. Isthmus to dorsal fin (I-C) | 0.180525 | -0.076554 |
| 18. Isthmus to pectoral fin (I-H) | 0.168864 | 0.109604 |
| 19. Maxil. comm. to supraoc. process (J-B) | 0.144293 | 0.177262 |
| 20. Supraoc. process to pectoral fin (B-H) | 0.153166 | 0.149247 |
| 21. Isthmus to supraoccipital process (I-B) | 0.154008 | 0.137472 |
Notes
Published as part of Pavanelli, Carla Simone & Oliveira, Carlos Alexandre Miranda, 2009, A redescription of Astyanax gymnodontus (Eigenmann, 1911), new combination, a polymorphic characid fish from the rio Iguaçu basin, Brazil, pp. 571 in Neotropical Ichthyology 7 (4) on page 571, DOI: 10.1590/S1679-62252009000400003, http://zenodo.org/record/5420950
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- Journal article: 10.1590/S1679-62252009000400003 (DOI)
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