| age-growth models for tilapia oreochromis aureus (perciformes, cichlidae) of the infiernillo reservoir, mexico and reproductive behaviour. | in presence of a decrease in the catch from infiernillo reservoir, michoacán-guerrero, mexico, age and growth of tilapia oreochromis aureus (steindachner 1864) were estimated, as indispensable attributes for fishery management. evaluations included scales and opercular bones readings and length frequency analysis. the population structure was determined too. due to the great variation of tilapia individual growth and with the objective to have reliable growth estimations, linearized, non-paramet ... | 2006 | 18494324 |
| [trophic range of tilapia oreochromis aureus (perciformes: cichlidae) in infiernillo dam, michoacán-guerrero, mexico]. | the trophic spectrum of tilapia oreochromis aureus (steindachner 1864), was determined by stomach content analysis in 153 organisms collected during 1993 in michoacán-guerrero, méxico. the feeding status of the fish at the time of observation was evaluated by the examination of fat surrounding the gut, gastric replection and the condition coefficient. the quantitative evaluation of the food items was carried out by the combination of the following analysis: frequency of occurrence, volumetric me ... | 2000 | 11354955 |