Environmental characterization of the reproductive season of migratory fish of the Sinú river (Córdoba, Colombia)

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=Q river , daily flow difference =ΔQ river , velocity=V river , temperature=T river , 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/m RESUMENObjetivo. Caracterizar algunos factores abióticos durante la temporada reproductiva de los peces migratorios (bocachico Prochilodus magdalenae, dorada Brycon sinuensis, bagre blanco Sorubim cuspicaudus y barbul Pimelodus blochii) en el río Sinú. Materiales y métodos. Entre abril y octubre de 2008, en Carrizola (Tierralta, 36.31 km de la Hidroeléctrica Urrá) se midieron diariamente tres veces/ día (07:00h, 12:00h, 17:00h) factores como caudal=Q río , diferencia de caudal=ΔQ río , velocidad=V río , temperatura=T río , conductividad eléctrica=CE, sólidos totales disueltos=STD, turbidez=Turb, nubosidad=Nub, pluviosidad=Pluv y brillo solar=Bs; también, en el mismo horario, se recolectó ictioplancton como indicador de actividad reproductiva, evaluada mediante frecuencia reproductiva 4767

Effect of habitat and sex on biological indicators and blood biochemistry ofAndinoacararivulatusin the province Los Ríos - Ecuador

“…The lowest appeared for treatment two, which reflects less precipitation than treatment three. In this sense, Kerguelen and Atencio (2015), reported that, in tropical aquatic systems, the hydrological patterns and the transport of nutrients generated by the rainy season are definitive for the selection of the optimal reproduction time. This is related to the amount of rainfall depending on the location.…”

Spatial and temporal distribution of ichthyoplankton during an unusual period of low flow in a tributary of the São Francisco River, Brazil

“…These species are benthopelagic, and therefore have an important ecological function in nutrient cycling (Castro & Vari, ). In addition, species of the Prochilodus genus are greatly appreciated as fishing resources (Castro & Vari, ) because they are highly abundant in the South American continental waters (Kerguelén‐Durango & Atencio‐García, ). Alone, the Curimbatá‐pacu ( P. argenteus ) represents 50% of all catches from the Três Marias reservoir located on the upper São Francisco River (Sato & Godinho, ).…”

Draft genome assembly for the colombian freshwater bocachico fish, Prochilodus magdalenae

“…The genus Prochilodus includes 13 species with a wide distribution in rivers on both sides of the Andes mountains in Colombia, Venezuela, French Guiana, Suriname, Brazil, Peru, Bolivia, Argentina , Paraguay, and Uruguay ( Castro and Vari 2003 ). Fishes in this genus carry out reproductive migrations ( Kerguelén-Durango and Atencio-García 2015 ; López-Casas et al, 2016 ; Lopes et al, 2019 ), and their life cycles relate to the hydrological patterns of flooding and drought of the swamps and floodplains ( López-Casas et al, 2016 ; Benedito et al, 2018 ; Lopes et al, 2019 ).…”