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Research Article Open access CC BY 4.0

Hydrographic Properties of Selected Stretches of the Calabar River, Calabar, Cross River State, Nigeria

C. B. Ndome, I. G. Olaleye, M. Eyo

Asian Journal of Environment & Ecology · pp. 14–18 · Published 6 Jul 2022

10.9734/ajee/2022/v18i330316

Abstract

A study on the hydrographic (tidal range, speed of flow and Physicochemical parameters) characteristics of the Calabar River was carried out for three months at three sampling points. The result obtained for the tidal range of the Calabar River from the three sampling points ranged between 0.2m to 0.98m. Statistical analysis revealed that the difference in the tidal range between the sampling stations was not significant (P > 0.05). The speed of flow ranged between 0.72m/s and 1.15m/s. The difference in the speed of flow values between the three stations was found to be statistically significant (P < 0.05). Physicochemical parameters showed that the pH of water from the three sampling points ranged between 4.90 to 6.55 (P > 0.05). Conductivity values ranged between 194 µm/S and 955 µm/S. (P < 0.05). Dissolved Oxygen ranged from a minimum of 2.5 mg/l to 5.1 mg/l (P < 0.05). Salinity (mg/l) ranged from 0.13 mg/l to 0.63 mg/l in the study (P < 0.05). Nitrate concentration ranged from 0.32 mg/l to 0.57 mg/l (P > 0.05). Nitrite concentration ranged from 0.030 mg/l to 0.2 mg/l (P >0.05). Alkalinity concentration ranged from 9.0 mg/l to 55.10 mg/l. (P < 0.05). Turbidity concentration ranged between 5.2 mg/l and 65.6 mg/l (P < 0.05). Temperature ranged from 25oC to 28oC (P < 0.05). Total dissolve solute (TDS) concentration ranged between 132.66 mg/l and 668.5 mg/l (P >0.05).

Hydrographic properties physicochemical parameters tidal range and speed of flow

References (3)

  1. 1 Impact Assessment of Industrial Effluent on Water Quality of the Receiving Alaro River in Ibadan, Nigeria
  2. 2 Biological monitoring of lotic ecosystems: the role of diatoms [DOI]
  3. 3 Lotic Ecosystem Health Assessments Using an Integrated Analytical Approach of Physical Habitat, Chemical Water Quality, and Fish Multi-Metric Health Metrics [DOI]

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