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Seasonal and spatial variations in some physico-chemical parameyers of the River Bonny [Niger Delta]

100%

Dublin-Green C. O.

Acta Hydrobiologica

1992

tom 34

nr 1-2

3-17

Changes in some ecological parameters of the River Bonny were observed at ten channel Stations. Significant salinity variations were recorded. Ammonia nitrogen concentration was generally high (2.4 mg dm-3) while phosphate concentration was below detection limit during the late rainy season. A two-way analysis of variance of measured parameters revealed that seasonal and spatial variations in salinity, alkalinity, pH, and silica are significant.

The effect of hydrological regime on the temperature and salinity profiles of a tropical coastal river [ Nigeria ]

100%

Akpan A. W.

Acta Hydrobiologica

1993

tom 35

nr 4

275-284

Temperature and salinity variations exhibited clearly defined regimes with bimodal and unimodal peaks respectively. The vertical profile showed thermal stratification at depths > 6 m, but no thermocline. The salinity profile showed a higher concentration at bottom than surface at depth ≥ 8 m. Diel variation in temperature was due to rainfall and sunshine and that of salinity to tidal effects. Temperature and salinity variations followed the rainfall regime and were markedly affected by hydrological variables.

Ryba bez wody...

100%

Szmel M.

Nasze Akwarium. Miesięcznik Miłośników i Hodowców Ryb

2003

nr 12[51]

Na sawannie

75%

Grzegorczyk M., Grzegorczyk A.

Poznajmy Las

2006

nr 6

26-27

Ograniczanie wyników

2 Acta Hydrobiologica

1 Nasze Akwarium. Miesięcznik Miłośników i Hodowców Ryb

1 Poznajmy Las

1 Akpan A. W.

1 Dublin-Green C. O.

1 Grzegorczyk A.

1 Grzegorczyk M.

1 Szmel M.

1 2006

1 2003

1 1993

1 1992

Wyniki wyszukiwania

Seasonal and spatial variations in some physico-chemical parameyers of the River Bonny [Niger Delta]

The effect of hydrological regime on the temperature and salinity profiles of a tropical coastal river [ Nigeria ]

Ryba bez wody...

Na sawannie