Environmental characterization of the reproductive season of migratory fish of the Sinú river (Córdoba, Colombia)
Journal Title: Revista MVZ Cordoba - Year 2015, Vol 20, Issue 3
Abstract
Objective. To characterize some abiotic factors during the reproductive season of migratory fish (bocachico Prochilodus magdalenae, dorada Brycon sinuensis, bagre blanco Sorubim cuspicaudus and barbul Pimelodus blochii) in the Sinú River. Materials and methods. From April to October, 2008, in Carrizola (Tierralta, 36.31 km from the Urrá hydroelectric plant) factors such as flow=Qriver, daily flow difference =ΔQriver, velocity=Vriver, temperature=Triver, electrical conductivity=CE, total dissolved solids=STD, turbidity=Turb, cloudiness=Nub, rainfall=Pluv and solar brightness=Bs were measured daily three times/day (07:00 h, 12:00 h, 17:00 h). Also, on the same schedule, ichthyoplankton was collected as an indicator of reproductive activity, assessed by reproductive frequency (Fr=number of days with presence of ichthyoplankton/number of days in the period evaluated X 100) and larval density (Dl=larval/m3). Results. The daily values of Qriver ranged between 278.7 and 838.5 m3/s, ΔQriver between 0.0 and 100.7 m3/s, Vriver between 1.40 and 1.53 m/s, Pluv between 0.0 and 88.2 mm, Triver between 27.0 and 28.7°C, STD between 73.0 and 302.3 mg/L, Turb between 9.7 and 679.7 NTU, CE between 81.0 and 361.7 mS/cm, Bs between 0.0 and 11.2 hours, Nub between 2.0 and 7.3 octaves. The Fr was 30.4%, with April (40.0%) and May (74.2%) as the higher activity reproductive months, while the Dl in the season was 4.9 larvae/m3, with the larvae group other species (2.9 larvae/m3) and bocachico (1.8 larvae/m3) as the most abundant. Conclusions. Most reproductive activity was recorded early in the season (April and May) and parameters such as Qriver, Triver, Vriver, Pluv, STD and Nub may be considered final factors associated with migratory fish reproduction.
Authors and Affiliations
Eduardo Kerguelén-Durango, M. Sc| Universidad de Córdoba, Facultad de Medicina Veterinaria y Zootecnia, Departamento de Ciencias Acuícolas, Centro de Investigación Piscícola CINPIC, Montería, Colombia., Víctor Atencio-García, M. Sc *| Universidad de Córdoba, Facultad de Medicina Veterinaria y Zootecnia, Departamento de Ciencias Acuícolas, Centro de Investigación Piscícola CINPIC, Montería, Colombia.Correspondencia: vatencio@hotmail.com.
Keywords
Related Articles
- EP ID EP3424
- DOI -
- Views 387
- Downloads 19
Bacteriophages specific for DH5α strain of E. Coli from wastewater isolation techniques
Objetive. To develop an isolation technique for DH5α E. coli specific bacteriophages in wastewater. Materials and methods. The 1601 method of the Environmental Protection Agency of the United States of America and an was...
Activation and comparative kinetics of Ovis aries plasmin with human plasmin
Objective. Compare the kinetics and activations, unify the purifications methods and establish the sequence of the N-terminals of the plasminogens human and Ovis aries. Materials and methods. The plasminogens were purifi...
Estudios preliminares de la estructura genética del perro cimarrón uruguayo usando microsatélites
Objetive. To analyze the population structure, using microsatellite markers in a sample of “Cimarron Uruguayo” dogs. Materials and methods. Thirty dogs were analyzed in different areas of Uruguay with a set of nine molec...
Profile of canine patient with esophageal foreign bodies
Objective. Determine the profile of the canine patient with esophageal foreign bodies to identify risk factors associated with the foreign bodies. Materials and Methods. This is a retrospective study made by the Veterina...
ESTIMATION OF GENETIC PARAMETERS FOR WEANING WEIGHT IN WHITE OREJINEGRO CATTLE IN THE COLOMBIAN NORTHWEST
Objective. To estimate the direct and maternal additive genetic components of variance for weaning weight in native cattle, Blanco Orejinegro (BON). Materials and methods. 356 records of the animal nucleus pure breed BON...