A Comparative Study on the Water Quality of Two Nilotic Canals, and Their Effect on Some Biological Parameters of Oreochromis niloticus, in the Delta of Egypt, and Suggestion of a Simple Water Quality Index| Chapter 16 | New Visions in Biological Science Vol.9

 The Nile River divides into irrigation canals that stretch for hundreds of kilometres (40 to 85 kilometres), each representing a semi-independent ecosystem. The Bahr Shebeen (BSC) and Alkhadraweya (KHC) Canals are located in the Minufiya Governorate and extend across the Delta of Egypt to neighbouring governorates. Total hardness, total dissolved solids, electrical conductivity, dissolved oxygen, pH, Cl, Mg, Ca, Zn, Mn, PO 4, Fe, NO3, and Cu were among the characteristics measured. For each Canal, these criteria were analysed and discussed in search of meaningful links. The suitability of each environment for fish was assessed using fish growth, gonad stomach somatic indices, and BSC was shown to be 13 to 15% more favourable for fish.

Following that, the Water Quality Index (WQI) for those Canals was studied, and a basic WQI was developed.

Author(s) Details:

Prof. Elsayed A. Khallaf,
 Department of Zoology, Faculty of Science, Minufeya University, Shebeen Alkoom, Egypt.

Galal M,
Department of Zoology, Faculty of Science, Minufeya University, Shebeen Alkoom, Egypt.

Prof. Authman M. N,
Department of Hydrobiology, National Research Centre, Giza, Egypt.

Ms. Zaid R. A,
 Department of Zoology, Faculty of Science, Minufeya University, Shebeen Alkoom, Egypt.

Please see the link here: https://stm.bookpi.org/NVBS-V9/article/view/5891

Tidal Influence on Nutrients Status and Phytoplankton Population of Okpoka Creek, Upper Bonny Estuary, Nigeria | Chapter 8 | Recent Research Advances in Biology Vol. 5

 Okpoka Creek in the Niger Delta's Upper Bonny Estuary is a tidal creek that receives organic anthropogenic effluents from its surroundings. The study looked into the impact of low and high tides on phytoplankton species structure, diversity, abundance, and distribution. From May 2004 to April 2006, surface water and phytoplankton samples were collected monthly from ten stations at both tides using standard methods. Microscopically, phytoplankton was found. Normal indices were used to measure species diversity. Analysis of variance, Duncan multiple range, and descriptive statistics were used to analyse the results. Phosphate and ammonia levels in natural water bodies surpassed international acceptable levels of 0.10 mg/L, suggesting a high nutrient status, organic matter, and possible contaminants. A total of 158 phytoplankton species were discovered. The phytoplankton was dominated by diatoms (62.9 percent ). Diatom diversity indices were 1.50.03 (Margalef) and 0.80.01 respectively (Shannon). Pollution-indicator species such as Navicula microcephala, Nitzschia sigma, Synedra ulna (diatoms), Cladophora glomerata (green alga), Euglena acus (euglenoid), Anabeana spiroides (blue-green alga), Ceratium furca (dinoflagellate), and Cladophora glomerata (green alga To - the inflow of contaminants from the Bonny Estuary into this Creek caused by tidal impact, environmental monitoring on the Upper Bonny Estuary is recommended.

Author (s) Details

Prof. O. A. Bubu-Davies
Department of Fisheries and Aquatic Environment, Rivers State University of Science and Technology, P.M.B. 5080, Port Harcourt, Nigeria.

Professor O. A. Ugwumba
Hydrobiology and Fisheries Unit, Department of Zoology, University of Ibadan, Ibadan 900001, Nigeria.

View Book :- https://stm.bookpi.org/RRAB-V5/issue/view/36