THE FEEDING HABITS OF SEVEN SPECIES OF FISHES IN THE RESERVOIR OF URRA HYDROPOWER (CÓRDOBA, COLOMBIA)
Journal Title: Revista MVZ Cordoba - Year 2005, Vol 10, Issue 2
Abstract
The object of the study was to evaluate the feeding habits of seven species of fishes that have established in the reservoir of the Urrá Hydropower (HU). 453 stomaches were analysed: perico (Tracheolypterus badeli cf) (n=115), cacucho (Panaque gibbosus) (n=111), yalua (Cyphocharax magdalenae) (n=108), mojarra amarilla ( Caquetaia kraussii) (n=89), moncholo ( Hoplias malabaricus) (n=11), barbul (Pimelodus clarias) (n=10) and doncella (Ageneoisus pardalis) (n=9). The stomach contents were analysed by means of ocurrence frequency (FO), numeric frequency (FN) and gravimetric method (G). The importance of each prey was determined by means of the Item Categorization Index (ICP) and the overlapping of diets was analyzed by means of the Morosita Index (IM). The results showed that yalúa stomach contents were detritus (95.5%) and the remaining were microalgal (Chlorophyta and Bacillariophyta) and protozoans/rotifers. cacucho diet was conformed of microalgal and protozoans/rotifers (70.9%, Cyanophyta, Chlorophyta and Bacillariophytas) and the remaining was detritus. Barbul (FO = 50%, FN = 46. 2%) and perico (FO = 73. 9%, FN = 86. 4%) fed mainly of insects. Mojarra amarilla (FO = 87. 1%, FN = 83. 3%), doncella (FO = 92. 3%, FN = 92. 0%) and moncholo (FO = 90. 9%, FN = 90. 9%) showed preference for fishes like cachanita ( Roeboides dayi) and sardinas ( Astianax sp). From the results it can infereed that yalúa is detritivore-iliophagus, cacucho is detritívore, and perico and barbul are carnivore-insectivorous and doncella, moncholo and mojarra amarilla are carnivore-piscívorous.
Authors and Affiliations
V. J. Atencio-García*| Facultad de Medicina Veterinaria y Zootecnia. Departamento de Ciencias Acuícolas. Centro de Investigación Piscícola – CINPIC. Universidad de Córdoba, Montería, Colombia.Correspondencia: vjatencio@telecom.com.co, E. Kerguelén-Durango| Facultad de Medicina Veterinaria y Zootecnia. Departamento de Ciencias Acuícolas. Centro de Investigación Piscícola – CINPIC. Universidad de Córdoba, Montería, Colombia., E. Cura Dorado| Facultad de Medicina Veterinaria y Zootecnia. Departamento de Ciencias Acuícolas. Centro de Investigación Piscícola – CINPIC. Universidad de Córdoba, Montería, Colombia., R. Rosado Carcamo| Facultad de Medicina Veterinaria y Zootecnia. Departamento de Ciencias Acuícolas. Centro de Investigación Piscícola – CINPIC. Universidad de Córdoba, Montería, Colombia., A. Vallejo| Facultad de Medicina Veterinaria y Zootecnia. Departamento de Ciencias Acuícolas. Centro de Investigación Piscícola – CINPIC. Universidad de Córdoba, Montería, Colombia., M. Valderrama| Fundación Humedales, Bogotá, D.C. Colombia.
Keywords
Related Articles
- EP ID EP3035
- DOI -
- Views 421
- Downloads 23
Nursing habits of Chinampo cattle (Bos taurus) from México
Objective. To determine the nursing habits of Chinampo calves (Bos taurus) during different stages of lactation. Materials and methods. Twenty cows with their calves were used. The animals were observed from day 30 to 18...
Performance and plasma urea nitrogen of immunocastrated males pigs of medium genetic potential
Objective. A study was carried out to evaluate the performance and the plasma urea nitrogen (PUN) of male pigs of medium genetic potential for lean meat deposition in carcass, which underwent immunocastration. Materials...
Influence of subclinical infection by agents of tick fever in milking dairy cows
Objective. The objective of this study was to evaluate the effect of subclinical infection by agents of tick fever in dairy cattle on milk parameters, such as production, composition, and quality. Materials and methods....
Characterization and study of spontaneous fermentation of fermented milk product (suero costeño) produced in Monteria
Objective. Describe the fermentation process of fermented milk product (suero costeño) produced in Monteria. Materials and methods. The fermented homemade product was characterized by physic-chemical and bromatological m...
GROWTH FACTORS IN THE FOLLICULAR DEVELOPMENT, EMBRYONIC EARLY AND IMPLANTATION. IMPLICATIONS IN THE PRODUCTION OF BOVINE EMBRYOS
The review describes the role the growth factors on follicular development, early embryonic, implantation and their importance in the production of bovine embryos. It describes, growth factors its important roles in key...