scholarly journals Anthropogenic Impact on Plankton and Benthos Assemblage in the Lagos Lagoon, Nigeria

2020 ◽  
Vol 78 (4) ◽  
pp. 173-182
Author(s):  
Adiaha Alda Alex Ugwumba ◽  
Imeh Kokoete Esenowo
Keyword(s):  
Benthic Invertebrates ◽  
Human Activities ◽  
Anthropogenic Impact ◽  
Domestic Sewage ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Lagos State ◽  
Lagos Lagoon ◽  
Abundance And Distribution ◽  
Monthly Variations

AbstractThe physico-chemical parameters, plankton and macro-benthic invertebrates of the Lagos Lagoon (Badore, Ajah), Lagos State, Nigeria were studied between February and July 2018 at four sampling stations in a disparate range of human activities and impact. The result of phytoplankton analysis indicated a total of 56 genera with 40 genera within Bacillariophyta, accounting for 72% of the abundance. Zooplankton comprised 26 genera with 82% of the abundance of crustacea. The benthic macroinvertebrates were composed of mollusca, arthropoda and annelida. Results also indicated that the main drivers affecting the abundance and distribution of planktonic and benthic invertebrates were water temperature, pH, TDS and EC. The monthly variations of physico-chemical parameters in the Lagoon could be the result of human activities associated with transportation, fishing and domestic sewage disposal from the surrounding settlements. Therefore, it is necessary that relevant authorities keep in check some of these activities around the Lagoon as well as educate the population on the necessity for the conservation of these water resources.

scholarly journals Preliminary Study on Physico-Chemical Parameters and Phytoplankton of Chiffa River (Blida, Algeria)

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Fella Hamaidi-Chergui ◽  
Mohamed Brahim Errahmani ◽  
Fatouma Benouaklil ◽  
Mohand Said Hamaidi
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Organic Matter ◽  
Water Samples ◽  
Chemical Parameters ◽  
North West ◽  
Quality Guidelines ◽  
Physico Chemical ◽  
Preliminary Study ◽  
Monthly Variations

The present study was carried out to determine the monthly variations of physico-chemical parameters in water samples from Chiffa river at Blida, North West of Algeria from April to August 2006. Water samples were analyzed for physico-chemical parameters and the results showed their monthly variations as follows: pH 7.5-7.6, electrical conductivity 0.87–1.06 mS·cm−1, nitrate 0–7.00 mg·L−1, nitrite 0–0.28 mg·L−1, ammonia 0–0.03 mg·L−1, phosphate 0–0.94 mg·L−1, sodium 19.3–47.0 mg·L−1, chloride 35.7–52.0 mg·L−1, calcium 90.3–104.7 mg·L−1, magnesium 27.3–37.7 mg·L−1, organic matter 0.4–3.9 mg·L−1, chlorophyll a 0.7–132.3 mg·L−1, and bicarbonate 219.3–248.7 mg·L−1. The analyzed physico-chemical parameters were almost not exceeded the maximum permissible limit of WHO and Algerian Water Quality Guidelines. A total of 53 taxa belonging to 4 divisions have been identified, including Chlorophyta (52.83% of taxa), Bacillariophyta (28.30%), Cyanophyceae (16.98%), and Charophyta (1.89%).

scholarly journals Composition of planktonic organisms and its associated physico-chemical parameters in two ponds at African regional aquaculture centre (ARAC) Aluu, Port Harcourt

1970 ◽  
Vol 21 (1) ◽  
pp. 1-5
Author(s):  
GN Woke ◽  
IP Aleleye-Wokoma
Keyword(s):  
Water Quality ◽  
Heavy Rainfall ◽  
Aquatic Organisms ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Port Harcourt ◽  
Dominant Classes ◽  
Abundance And Distribution ◽  
Plankton Communities

Composition of plankton communities in two ponds at African Regional Agriculture Centre (ARAC) Aluu, Port Harcourt was undertaken between May and June 2004, to assess the composition, relative abundance and distribution of plankton. The diversity of plankton was poor. Twenty-eight taxa representing four (4) families were recorded for phytoplankton while seventeen taxa representing four families were identified for zooplankton. Chlorophyta and Cladocera were the most dominant classes in phytoplankton and zooplankton in terms of abundance, constitute 13.0% and 17.1% respectively. The water quality of the ponds is evident by high temperature (28.80C), depth (57.5cm), transparency (42), dissolved oxygen (4.9mg/l) and low BOD of (1.4mg/l). The lower density of organisms could be partly attributed due to heavy rainfall which destabilize the surface water and substrate. Hence, extensive studies of the ponds where aquatic organisms are kept should be carried out to maintain proper utilization of ponds.KEYWORDS: Plankton, composition, communities richness, abundance.

scholarly journals ASSESSMENT OF WATER QUALITY (PHYSICO-CHEMICAL) OF KANEKAL TANK, ANANTAPURAMU DIST., AP, INDIA.

1970 ◽  
pp. 08-15
Author(s):  
PHILIP HAROLD GUNDALA ◽  
JAYARAM NAIK V N ◽  
VENKATA RAMANAIAH KOLALA
Keyword(s):  
Water Quality ◽  
Domestic Sewage ◽  
Total Hardness ◽  
Chemical Parameters ◽  
Standard Methods ◽  
Physico Chemical ◽  
Free Carbon Dioxide ◽  
Calcium Magnesium ◽  
Tank Water ◽  
Magnesium Phosphates

Abstract: Different Physico-chemical parameters of Kanekal tank water, Kanekal were estimated from October 2012 to September 2014 to assess its quality. The different parameters like Temperature, pH, TDS, conductivity, salinity, dissolved oxygen, turbidity, alkalinity, free carbon dioxide, chloride, total hardness, calcium, magnesium, phosphates, sulphates, silicates, nitrites, nitrates, BOD and COD were carried out by standard methods. These parameters showed either positive or negative correlation between each other. The analysis revels these parameters are interrelated with each other. From the data it can be said that water of this tank is partially contaminated with human faeces, domestic sewage etc. Hence it is not good quality for culture of fish as well as drinking for animals.Keywords –Kanekal Tank, water quality, Physico-chemical parameters, BOD, COD

scholarly journals Assessment of Some Physico-Chemical Parameters of Lagos Lagoon, Southwestern Nigeria

2019 ◽  
pp. 09-11
Author(s):  
Peter Olaoye Oyeleke ◽  
Samuel Olatunde Popoola ◽  
Olushola Ayoola Abiodun
Keyword(s):  
Dissolved Oxygen ◽  
Point Source ◽  
Anthropogenic Activities ◽  
Health And Safety ◽  
Chemical Parameters ◽  
Southwestern Nigeria ◽  
Mean Values ◽  
Physico Chemical ◽  
Significant Difference ◽  
Lagos Lagoon

The pollution status of Lagos Lagoon was investigated to determine some physical and chemical parameters, in order to further understand its water quality. Five locations were selected according to the anthropogenic activities taking place in the areas. The measured parameters are water temperature, salinity, conductivity, pH, dissolved oxygen (DO) and alkalinity. The mean values ranged from 28.50-30.15°C for temperature, 7.86-8.50 for pH, ND-10.60‰ for salinity, 0.18-15.20µS/cm for electrical conductivity, 12.00-14.00 mg/l for alkalinity and 1.60-6.40 mg/l for dissolved oxygen. The statistical analysis of the measured physicochemical parameters revealed non-significant difference (p>0.05) across all stations in the physico-chemical parameters. Generally, the values obtained suggest the influence of anthropogenic activities especially the depletion of DO in most of the stations. Therefore, point source and non-point source pollution into the Lagos Lagoon should be controlled for the health and safety of the aquatic ecosystems. Generally, all the measured parameters were either below or within the permissible limits obtainable in the marine environment.

scholarly journals Use of macro invertebrates to assess the quality of Seybouse River (North-East of Algeria)

2020 ◽  
Vol 10 (4) ◽  
pp. 60-66
Author(s):  
B. Affef ◽  
O. Samia ◽  
B. Mohamed
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Benthic Invertebrates ◽  
Continuous Monitoring ◽  
Physicochemical Characteristics ◽  
Chemical Parameters ◽  
North East ◽  
Physico Chemical ◽  
Different Depths

This study aimed to evaluate the physicochemical properties of water, to determine the macro-benthic invertebrates of this ecosystem. The money samples of water are taken (November - May) at three stations at different depths, including a very polluted one at downstream of the Wadi. Several physico-chemical parameters were measured (pH, electrical conductivity, turbidity, BOD5 MES, water temperature and salinity). The Bi-monthly sampling of macro invertebrates revealed the existence of 40 taxa, divided into 4 branches (amphibians, molluscs, arthropods, annelids), made up of 2344 identified individuals, and distributed according to the bathymetry, where the majority are Arthropods with 95.38%. The annelids represent 3.71%, collected mainly at the level of the strongly anthropized site C. Therefore, the distribution of the macrobenthic fauna, depends on the physico-chemical parameters, on the geographical position.Maintaining a standard water quality in this aquatic ecosystem requires continuous monitoring of its physicochemical characteristics.

Contribution of the pollution index and GIS in the assessment of the physico-chemical quality of the surface waters of Moulouya River (NE, Morocco)

2020 ◽  
pp. 45-54
Author(s):  
Abdellah El Hmaidi ◽  
Abdelghani Talhaoui ◽  
Imad Manssouri ◽  
Hajar Jaddi ◽  
Habiba Ousmana
Keyword(s):  
Surface Waters ◽  
Anthropogenic Impact ◽  
Pollution Index ◽  
Industrial Wastes ◽  
Chemical Quality ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Polluted Waters ◽  
Very High

This study assesses the spatial and temporal physico-chemical quality of the surface waters of Moulouya River based on the global pollution index PI. Several physico-chemical parameters (T°C, pH, electrical conductivity (EC), dissolved Oxygen (DO), BOD5, PO43−, NH4+, SO42− and NO3−) were monitored on 66 samples collected in 2014 during three campaigns at 22 stations from the upper reaches in the Upper Moulouya to its mouth in the Mediterranean. The results show that 86.4% of the stations show no pollution and are mainly located upstream of Moulouya river during the three campaigns of 2014 (March–April, May–June and July–August). However, the Zaida (M6), Missour (M12) and Gercif (M16) stations have polluted waters related to the very high levels of ammonium, nitrates, sulphates, phosphates and DBO5, which exceed Moroccan standards and would be related to the anthropogenic impact of agricultural fertilizers and urban and industrial wastes.

scholarly journals Water quality indices and abiotic characteristics of western Yamuna canal in Yamunanagar, Haryana

2009 ◽  
Vol 1 (2) ◽  
pp. 149-154 ◽  
Author(s):  
Anita Bhatnagar ◽  
Girish Chopra ◽  
Priyanka Malhotra
Keyword(s):  
Water Quality ◽  
Fish Fauna ◽  
Industrial Effluents ◽  
Domestic Sewage ◽  
Quality Indices ◽  
Canal Water ◽  
Efficient Treatment ◽  
Physico Chemical ◽  
Quality Water ◽  
Monthly Variations

The present paper deals with the monthly variations of physico-chemical characteristics of western Yamuna canal water, Yamunanagar which is polluted with industrial effluents and domestic sewage. Three sampling points i.e. station-1: Upstream of the river; station-2: Point of influx of industrial effluents and domestic sewage; Station-3: About 6 kms downstream from station 2 were selected for the investigation. Studies revealed high values of turbidity, conductivity, free CO2, alkalinity, calcium, hardness, magnesium, chloride, orthophosphate, phosphate, sulphate and ammonia and low values of DO at station-2. The differences in various parameters were statistically significant (P<0.05) when compared from upstream and downstream stretches of the river particularly in summer. DO and BOD were found to be two important parameters which showed strong correlation with other parameters and hence can serve as good indices of river water quality. Water Quality index designated station-1 as highly polluted and station-2 and 3 as severely polluted. Thus the hydro biological conditions were not congenial/ optimum for the survival/ production of sensitive fish fauna, therefore, proper and efficient treatment of the effluents and sewage should be carried out before discharging these into the canal.

Responses of pink shrimp Farfantepenaeus brasiliensis (Latreille, 1817) (Penaeoidea) to physico-chemical parameters in a marine protected area: changes in abundance and distribution after 20 years

2020 ◽  
Vol 54 (7-8) ◽  
pp. 419-433
Author(s):  
Aline Nonato De Sousa ◽  
Ariádine Cristine De Almeida ◽  
Kátia Aparecida Hiroki ◽  
Camila Hipolito Bernardo ◽  
Veronica Pereira Bernardes ◽  
...  
Keyword(s):  
Protected Area ◽  
Marine Protected Area ◽  
Pink Shrimp ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Abundance And Distribution
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