Table 1. General diet of Plagioscion magdalenae in El Guájaro reservoir, lower Magdalena River basin. %N, numerical percentage; %V, volumetric percentage; %FO, percentage frequency of occurrence; %FII, percentage of food importance index; L, larva; A, adult.
Tabla 1. Dieta general de Plagioscion magdalenae en el embalse El Guájaro, cuenca baja del río Magdalena. %N, porcentaje numérico; %V, porcentaje volumétrico; %FO, porcentaje de la frecuencia de ocurrencia; %FII, porcentaje del índice de importancia alimentaria; L, larva; A, adulto.
| Class | Order | Family | Items | %N | %V | %FO | %FII |
| Actinopterygii | Characiformes | Characidae | Astyanax sp. | 12.90 | 29.17 | 14.07 | 39.36 |
| Roeboides dayi | 1.08 | 6.14 | 1.51 | 0.88 | |||
| Hyphessobrycon proteus | 2.87 | 5.00 | 2.51 | 1.20 | |||
| Triportheidae | Triportheus magdalenae | 0.36 | 0.50 | 0.50 | 0.02 | ||
| Clupeiformes | Engraulidae | Anchoa lyolepis | 5.38 | 15.51 | 6.53 | 9.71 | |
| Hemiramphidae | Hyporhamphus unifasciatus | 0.36 | 0.50 | 0.50 | 0.02 | ||
| Blenniiformes | Cichlidae | Caquetaia kraussii | 1.08 | 12.05 | 1.51 | 1.74 | |
| Andinoacara latifrons | 0.36 | 7.73 | 0.50 | 0.37 | |||
| Acanthuriformes | Sciaenidae | Plagioscion magdalenae | 0.36 | 0.18 | 0.50 | 0.01 | |
| Insecta | Diptera | Chironomidae | Chironomidae (L) | 48.03 | 1.71 | 8.54 | 1.40 |
| Ephemeroptera | Polymitarcydae | Campsurus sp. (L) | 12.54 | 1.68 | 7.54 | 1.21 | |
| Odonata | Libellulidae | Pantala flavescens (L) | 4.66 | 1.18 | 5.53 | 0.62 | |
| Hymenoptera | Formicidae | Crematogaster sp. (A) | 0.36 | 0.03 | 0.50 | 0.01 | |
| Malacostraca | Decapoda | Palaemonidae | Macrobrachium sp. | 6.45 | 2.35 | 6.03 | 1.36 |
| Gastropoda | Neotaenioglossa | Thiaridae | Thiaridae | 1.79 | 0.24 | 1.51 | 0.03 |
| Others | Fish remains | 0.00 | 14.12 | 30.65 | 41.51 | ||
| Insect remains | 0.00 | 0.25 | 4.02 | 0.09 | |||
| Crustacean remains | 0.00 | 0.55 | 3.02 | 0.15 | |||
| Fish larvae | 1.43 | 0.56 | 2.01 | 0.10 | |||
| Vegetable material | 0.00 | 0.59 | 2.51 | 0.14 |