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Seasonal dynamics of phytoplankton in two tropical rivers of varying size and human impact in Southeast NigeriaDinamica de temporada del fitoplankton en dos rios tropicales de tamaño e impacto humano variado en el sureste de Nigeria

Idumah Okogwu, Okechukwu; Ugwumba, Alex O. (Universidad de Costa Rica, 2013)

Cyanobacteria abundance and its relationship to water quality in the Mid-Cross River floodplain, NigeriaCyanobacteria abundance and its relationship to water quality in the Mid-Cross River floodplain, Nigeria

Okechukwu I., Okogwu; Alex O., Ugwumba (Universidad de Costa Rica, 2009)

Age, growth and mortality of Clarias gariepinus (Siluriformes: Clariidae) in the Mid-Cross River-Floodplain ecosystem, NigeriaAge, growth and mortality of Clarias gariepinus (Siluriformes: Clariidae) in the Mid-Cross River-Floodplain ecosystem, Nigeria

Idumah Okogwu, Okechukwu (Universidad de Costa Rica, 2011)

Diet, size and reproductive biology of the silver catfish, Chrysichthys nigrodigitatus (Siluformes: Bagridae) in the Cross River, NigeriaDiet, size and reproductive biology of the silver catfish, Chrysichthys nigrodigitatus (Siluformes: Bagridae) in the Cross River, Nigeria

Obeten Offem, Benedict; Akegbejo Samsons, Yemi; Tunde Omoniyi, Isaac (Universidad de Costa Rica, 2008)

Analysis of streamflow variability and trends in the Meta River, Colombia

Arrieta-Castro, Marco; Donado-Rodríguez, Adriana; Acuña Robles, Guillermo Jesús; Canales, Fausto; Teegavarapu, Ramesh S. V.; Kázmierczak, Bartosz (Water, 2020)

River Model Calibration Based on Design of Experiments Theory. A Case Study: Meta River, Colombia

J. Acuña, Guillermo; Ávila, Humberto; A. Canales, Fausto (Water, 2019)

Heavy metal profile of water, sediment and freshwater cat fish, Chrysichthys nigrodigitatus (Siluriformes: Bagridae), of Cross River, NigeriaHeavy metal profile of water, sediment and freshwater cat fish, Chrysichthys nigrodigitatus (Siluriformes: Bagridae), of Cross River, Nigeria

Olatunji Ayotunde,, Ezekiel; Obeten Offem, Benedict; Bekeh Ada, Fidelis (Universidad de Costa Rica, 2012)

Fisheries governance in the 21 st century: barriers and opportunities in South American large rivers

Baigún, Claudio Rafael M.; Castillo, Trilce Irupé; Minotti, Priscilla Gail (Food and Agriculture Organization, 2016)

South American large-river fisheries are experiencing a growing pressure due to mining activity, construction of dams, water diversion, dredging, commercial overfishing, pollution, floodplain deterioration, agriculture, ...

Seasonal variations of species composition and abundance of zooplankton in Ehoma Lake, a floodplain lake in NigeriaSeasonal variations of species composition and abundance of zooplankton in Ehoma Lake, a floodplain lake in Nigeria

I. Okogwu, Okechukwu. (Universidad de Costa Rica, 2010)

Effect of southern climate modes and variations in river discharge on lake surface area in Patagonia

Scordo, Facundo; Perillo, Gerardo Miguel E.; Piccolo, Maria Cintia (Taylor and Francis Ltd., 2018-06-29)

Multiple regressions, wavelet spectra, and Fourier spectra were employed to analyze fluctuations in the surface areas of 2 Patagonian lakes during 1998–2015 and relate these to fluctuations in precipitation, evaporation, ...

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