Bonny River Research Articles

Abundance and diversity of insects associated with Rhizophora mangle and Avicennia germinans in Bundu-Ama mangrove ecosystem of the Niger Delta, Nigeria

Mangrove species diversity is well known for larger animals and plant, but little is known about mangrove insects and their significance and yet they perform important roles in the ecology of the habitat. The present study was conducted to determine the diversity of insects associated with Rhizophora mangle and Avicennia germinans in Bundu-Ama mangrove habitats, a tributary of the Bonny River in the Niger Delta. Two stations were established based on the abundance of the mangroves. A total of 18 mangrove trees (nine each) for both species were randomly selected and insect samples collected bi-weekly between 7 am and 11 am between April and June 2017, making a total of 108 trees per station within the study period. Each tree was sampled for 10 min using sweep net, hand net and handpicking methods. A total of 8 insect orders (Diptera, Coleoptera, Hymenoptera, Homoptera, Rhopalocera, Odonata, Phasmida and Heterocera), 20 families and 35 species were identified. Hymenoptera (49.1%) was the highest insect order recorded, followed by Diptera and Homoptera. Avicennia had more insect orders, families and species. Coleoptera, diptera and Hymenoptera were found on both plants while others were on Avicennia only. Formicidae was the most abundant family (37.1%) while Lagiidae was the least (0.2%). The most abundant species was Camponotus acvapimenis. The highest species diversity was observed in the Diptera with Shanon H’ of 2.00 for Avicennia and 2.13 for Rhizophora. The richness index was 2.43 for Avicennia and 2.62 for Rhizophora, and the highest species evenness (E’= 0.40) was observed in the Diptera indicating that the insects were not evenly distributed. Two insect associations were identified: a specialist group of 23 species on Avicennia, and 6 species on Rhizophora, while the second group were the generalist made up of 3 species Anopheles squamosus, Musca domestica and Fannia sp. Insect families (Muscidae, Calliphoridae, Syrphidae, Ceratopogonidae, Culicidae, Tabanidae) are of medical, veterinary and ecological importance as pollinators, bioindicators, predators, parasitoid, agricultural pest and detritivores. Insect diversity was found to be higher in Avicennia than in Rhizophora. This study has shown that the mangroves of Bundu-Ama have a vast array of insects which will contribute to their biodiversity data and subsequent conservation and management of ecosystem in the Niger Delta.

English

Post-drilling investigation for prolific groundwater aquifer was conducted in a well at the Nigeria LNG Base, Port Harcourt using geoelectric logging. Resistivity (Short Normal and Long Normal) and Self-Potential (SP) logs were employed. Two zones (A and B) were tested to determine the porosity (E¸), permeability (k) and the total dissolved solids (TDS) in the aquifer. Results show that the inferred lithology in the borehole consists of sand, clayey-sand and clay materials. They also indicate that test zone A (110-140 m), though permeable, has high membrane potential which is higher than the liquid-junction potential resulting from clay intercalation thereby reducing its viability as a production zone. Zone B is found to be prolific with porosity and permeability values of 18% and 131.31 mD respectively at depth range of 140 to 180 m. The total dissolved solid (TDS) derived from electrical conductivity (EC) value of 6250 μmhoscm-1 is 4000 mg/litre for this zone. The high TDS value observed within this prolific groundwater zone in the well may be as a result of effluent discharge by industries around the area or saline water intrusion due to its proximity to the Bonny River. The 4000 mg/litre falls outside the World Health Organization’s acceptable limit palatability for drinking water and may have the negative effects of excessive scaling in water pipes, water heaters, boilers, and domestic appliances such as kettles and steam irons which may reduce their service span. Effective water treatment is therefore recommended. Key words: Self-potential, resistivity, electrical conductivity, geoelectric, aquifer, total dissolved solids.

Kell Blood Group Antigens Not Found in Indigenes of Ogoni Ethnic Group of Rivers State, Nigeria

Aim: The aim of the study was to determine the frequency of occurrence and percentage distribution of Kell blood group antigens in indigenes of Ogoni ethnic group of Rivers State, Nigeria.
 Study Design: This was a cross-sectional study carried out among indigenes of Ogoni whose first generational parental origin is Ogoni. A total of 101 subjects (49 females and 52 males), within the age of 30–60 years were recruited for the study and they were apparently healthy and free from transfusion transmissible infections upon serological screening.
 Place and Duration of Study: Ogoniland is located in an area along the Niger Delta Eastern edge, and to the north-east of the Imo River and Port Harcourt city. Ogoniland covers about 1036 Sq Km and borders the Bay of Guinea. All participants were recruited in Bori. Bori is the traditional headquarter of Ogoni. Bori is located on latitude: 4040ʹ34.64ʺ N and longitude: 7021ʹ54.68ʺ E. The analysis was carried out at the Post Graduate Laboratory of Rivers State University, Nkpolu-Oroworukwo, Port Harcourt, Rivers State, Nigeria. Port Harcourt, the capital of Rivers State, is located on latitude 4.750N and longitude 7.000E and lies along Bonny River in the Niger Delta. All subjects were recruited the same day and their blood samples collected on 2nd October, 2019, and analysis conducted on 3rd October, 2019.
 Methodology: Identification of Kell blood group antigens was done using Anti-Kell monoclonal reagent, prepared by Lorne Laboratories Ltd, UK. Lot No: 76090-A5; Expiry Date: 2021/02/21. Phenotyping of red cells was done using tube method as described by Lorne Laboratory Ltd.
 Results: The result showed zero frequency of occurrence and percentage distribution of Kell blood group antigen in the studied population (49 males and 52 females).
 Conclusion: The presence of Kell blood group antigens in indigenes of Ogoni recruited for the study which serve as representative of the Ogonis was rare. It is therefore necessary to take into cognizance that haemolytic transfusion reactions due to Kell antigens and antibodies will rarely occur, and as such Kell blood group is not significant in blood transfusion and in antenatal and blood group serology amongst the Ogonis.

Teratogenicity, Mutagenicity, Carcinogenicity, Genotoxicity and Toxicity of Petroleum- contaminated Wastewater in Niger-Delta Nigeria

The chronic human health effects of the 17 US Environmental Protection Agency [USEPA] priority pollutants of polycyclic aromatic hydrocarbons [PAHs] were investigated and characterized in petroleum contaminated wastewater discharged indiscriminately into the surface water of Okpoka creek off the upper Bonny River estuary in the Niger-Delta. Collections and sampling were conducted under the standard specifications, ethics and protocols of U.S Environmental Protection Agency (EPA). The liquid-liquid extraction of Petroleum contaminated wastewater samples were conducted in accordance with standard procedure of US EPA. Identification and quantification of 17 PAHs were performed by Gas chromatograph with Mass spectrometric detection (GC/MSD) in accordance with standard analytical method of US EPA. The result showed presence of Naphthalene [2.6000 mg/l], Acenaphthylene [8.0000 mg/l], Acenaphthene [0.0000 mg/l], Fluorene [9.0008 mg/l], Anthracene [0.0000 mg/l], Phenanthrene [0.0000 mg/l], O-Terphenyl [5.0200 mg/l], Fluoranthene [1.1000 mg/l], Pyrene [8.0000 mg/l], Benz[a]anthracene [1.0900 mg/l], Chrysene [0.0000 mg/l], Benzo[b]fluoranthene [10.0000 mg/l], Benzo[k]fluoranthene [0.0000 mg/l], Benzo[e]pyrene [0.0000 mg/l], Dibenzo [a,h] anthracene [4.0100 mg/l], Indeno[1,2.3-cd]pyrene [9.2000 mg/l] and Benzo[g,h,i]perylene [3.0000 mg/l]. The results also indicated that some of the 17 PAHs constituents were above the PAHs World Health Organization [2003] maximum permissible limits (MPL) in drinking water (0.0020 mg/l) with 64% and 35.29% below the MPL. The low molecular weights of PAHs [LPAHs] were 40.60% and high molecular weights of PAHs [HPAHs] were 59.40%. Human teratogenic PAHs [9.09%], Human mutagenic PAHs [24.24%], Human carcinogenic PAHs [24.24%], Human genotoxic PAHs [18.18%] and other toxics [24.24%]. Thus, total PAHs concentrations gave 61.2800 mg/l of the petroleum contaminated wastewater sample.

Eco-Toxicological Assessment of Local and Industrial Refined Kerosene on Pollution Bio-Monitor Pseudomonas sp. in Tri-Aquatic Ecosystem

Aim: To investigate eco-toxicity of local and industrial refined kerosene on pollution bio-monitor Pseudomonas sp. in tri-aquatic ecosystem (Marine, brackish and freshwater).
 Study Design: The study employs experimental examination and statistical analysis of the data and interpretation. It was designed to evaluate the different kerosene concentration and the duration of exposure that could cause potential toxicological effect on Pseudomonas sp. in tri-aquatic ecosystem.
 Place of Study: Fresh water, brackish water, and marine water samples were collected in four litre (4L) sterile containers. Fresh water sample was collected from Asarama Andoni; brackish water from Eagle Island while marine water was collected from Bonny River in Bonny L.G.A., all in Rivers state, Southern, Nigeria. The locally refined kerosene was gotten from Okrika mainland, while the industrially refined kerosene was obtained from Chinda filling station, UST roundabout, Mile 3 Port Harcourt. The study lasted for three months.
 Methodology: Standard microbiological techniques were used; toxicity procedure were applied using local and industrial refined kerosene; prepared at concentrations of 1.625%, 3.25%, 6.5%, 12.5% and 25% in fresh, brackish and marine water. These were tested with Pseudomonas sp. for 0, 4, 8, 12, and 24h separately for each toxicant. The cultures were incubated at 35°C for 24 hours. The median lethal concentration (LC50) was employed to compute the toxicities of the different toxicants on the test organism.
 Results: The results specify that percentage (%) logarithm of mortality of Pseudomonas sp. increases with increased toxicants concentration and exposure time. The pollution bio-monitor Pseudomonas sp. demonstrated sensitivity to the toxicity of local and industrially refined kerosene. The sensitivity showed variations, toxic level decreased in the following order (noting that the lower the LC50, the more toxic the toxicants): Industrial refined kerosene in fresh water (18.80%) > Industrial refined kerosene in brackish water (20.81%) > Local refined kerosene in brackish water (21.48%) > Industrial refined kerosene in marine water (22.20%) > Local refined kerosene (24.26) > Local refined kerosene in marine water (24.92%). Industrial refined kerosene was seen to be more toxic in fresh water and local refined kerosene was found to be least toxic in marine water.
 Conclusion: The study showed that industrial refined kerosene in fresh water (LC50 = 18.8%) has the highest toxicity strength while local refined kerosene in marine water (LC50 = 24.92%) has the least toxicity strength on Pseudomonas sp. in the tri-aquatic ecosystem. These results show that local and industrial refined kerosene can inhibit the growth of Pseudomonas sp. in an aquatic ecosystem; noting that Pseudomonas sp. is one of the most effective biodegrading bacteria in ecological biogeochemical cycles, pollutant removal/remediation and a key pollution bio-monitor.

Statistical Modelling of Significant Wave Height: Inshore and Offshore Bonny River Estuary, Nigeria

The selection of best – fit probability distribution is of fundamental importance in the design, planning, and operability studies for harbours, coastal and offshore structures and exploitation of coastal resources. A wrong choice of probability distribution could lead to either under – or over – estimation of design loads, which may have detrimental impacts on safety and project economy. Consequently the Inshore and Offshore wave data of Bonny River estuary, Nigeria was studied by fitting Rayleigh, 2- parameter Lognormal, Fisher – Tippett Type 1(FT-1), 2-parameter and 3-parameter Weibull probability distributions using probability paper method. The probability distributions were subjected to five model evaluation metrics; coefficient of determination (R 2 ), demeaned RMSE, normalizedRMSE, Scatter index (SI) and Performance scores index(d 1 ) and a scoring scheme was adopted on the basis of which the best – fit probability distribution for either Inshore of Offshore was selected. The results show that 2-parameter Lognormal distribution is the best –fit probability distribution for the Inshore station, seconded closely by Fisher – Tippett Type 1 and 3- parameter Weibull distributions. The results also show that Fisher – Tippett Type 1 is the best – fit probability distribution for the offshore station seconded closely by 3 – parameter Weibull distribution. This study will contribute to the development of the coastal zone and also a recipe for Integrated Coastal Zone Management of the Nigerian Gulf of Guinea. Key words : Bonny river estuary, goodness of fit tests, integrated coastal zone management, significant wave height, probability distribution models. DOI : 10.7176/CER/11-4-08 Publication date :May 31 st 2019

Rapid Assessment of the Sex Ratio of the Fiddler Crab, Uca tangeri, in Two Mangrove Habitats on the Bonny River

A rapid assessment of the sex ratio of the fiddler crab, Uca tangeri, was undertaken in two mangrove habitats on the Bonny River which were undergoing intense human impact as a result of dredging and urbanization activities. The contrasting adult sex ratios of 4:1 of male to female at Eagle Island and 1:2.6 at Rumuolumini and or juveniles showing 2.4:1 (Eagle Island) and 1:1.8 (Rumuolumini) were highly significant (χ2 test, P<0.05). This shows evidence of studies supporting deviation in Uca spp from the 1:1 proportion. Evidence of anthropogenic activity and intensive socioeconomic exploitation provided no explanation for the contrasting high deviation in ratio of males to females between Eagle Island and Rumuolumeni habitats. Megalopae settlement is evident but the physical, chemical and interspecific cues that determine gender balance are necessary for any intended future conservation planning.

Human Health Risk Assessment of PAHs in Fish and Shellfish from Amariaria Community, Bonny River, Nigeria

The concentration of polycyclic aromatic hydrocarbons (PAHs) in Fish (Mullet fish-Mugil cephalus) and Shellfish (Tiger prawn-Penaeus Monodon and crab-Uca tangeri) samples from fishing areas in Amariaria Community, downstream of Bonny River, Southern Nigeria, were assessed to determine possible human health risk associated with consumption. Mean levels (mg/kg) of total PAHs ranged from 0.059 to 0.126 in fish, 0.015 to 0.106 in prawn and 0.057 to 0.063 in crab. A considerable predominance of the 3 and 4-rings PAHs in all the matrices was observed with benzo (a) anthracene dominating in all three species. Estimated daily intake (EDI) of PAHs through consumption of fish ranged from 0 to 0.0005 mg/kg/day, for prawn, 0 to 0.0002 mg/kg/day and for crab, 0 to 0.0002 mg/kg/day. EDI values were, however, lower than the reference dose (RfD) indicating low risk from consumption. Results of the estimated excess cancer risk (ECR) for Benzo (a) anthracene in fish, however, suggests that lifetime exposure to Benzo (a) anthracene through fish consumption would result in cancer risk.

Evaluation of the extent of pollution of discharged oil field brine in the Bonny estuary, Niger Delta, Nigeria

This is an assessment of the degree of effects of discharged produced water in river and sediments of the Bonny estuary, Niger Delta. It involved seasonal analyses of twenty-two (22) water and thirty-four (34) sediment samples from the Bonny River. The physicochemical properties (i.e., hydrocarbon content, heavy metals, and other inorganic constituents) of the water samples were examined, while the sediments were inspected for heavy metals and organic hydrocarbon constituents that may have been sourced from the discharged produced water. In addition, the principal component and cluster analyses, index of geoaccumulation, and pollution load index plots were utilized to deduce the degree of pollution, source, and distribution of these contaminants. From the results of the analyses, the Bonny seawater is contaminated with nitrate, phosphates, nickel, ammonia, and phenols in dry season, whereas nitrate, sulfate, phosphate, total nitrogen, total petroleum hydrocarbon (TPH), and heavy metals—zinc and lead—are observed in the rainy (wet) season. Similarly, the sediments are contaminated with benzene, toluene, ethyl benzene, xylene, polycyclic aromatic hydrocarbon, TPH, phenols, and heavy metals in both seasons. Considering the outcomes of these analyses, it is evident that the composition and quality of seawater and sediments of the Bonny estuary have been strongly influenced by produced water discharges in the area.

Population Dynamics of Diatoms in a Spring-Neap Tidal Cycle in an Estuarine Creek of the Bonny River System

Population Dynamics of Diatoms in a Spring-Neap Tidal Cycle in an Estuarine Creek of the Bonny River System

Radiogenic Heat Production Due to Natural Radionuclides in the Sediments of Bonny River, Nigeria

Radiogenic Heat Production Due to Natural Radionuclides in the Sediments of Bonny River, Nigeria

Determination of Heavy Metal Concentrations in Sediment of Bonny River, Nigeria

Determination of Heavy Metal Concentrations in Sediment of Bonny River, Nigeria

Bioaccumulation of heavy metals in some tissues of croaker fish from oil spilled rivers of Niger Delta region, Nigeria

ObjectiveTo investigate the level of heavy metals (Cu, Zn, Fe Mn Ni, Pb and Cd) in muscles, gills and liver tissue of Croaker fish from oil spilled rivers of Bonny and Finima, Niger Delta region, Nigeria. MethodsTwenty four Croacker fishes (Genyonemus lineatus) weighing between 250 and 260 g and 24–26 cm length were collected from each sampling sites (Bonny and finima rivers). The frozen fishes were thawed and dried at 105 °C until they reach a constant weight. The dried samples were homogenized and digested with 10 ml tri-acid mixture (HNO3: HClO4:H2SO4), and then the digested samples were diluted to 100 ml with deionized water. Heavy metals (Cu, Ni, Zn, Pb, Mn, Iron Fe, and Cd) concentrations were determined by atomic absorption spectrophotometer. ResultsOur results revealed that concentrations and distribution patterns of all heavy metals studied varied significantly (P < 0.05) amongst the fish tissues analyzed and sampling sites. Moreover, liver tissue of fish caught from Finima creek accumulated the highest concentrations of Cu (52.64 ± 3.01 μg/g dry wt), Zn (166.50 ± 6.45 μg/g dry wt) and Fe (801.50 ± 14.15 μg/g dry wt) in comparison to the liver of fish caught from Bonny river in which the levels of Cu, Zn and Fe were (45.00 ± 2.79), (49.90 ± 2.91) and (216 ± 6.11 μg/g dry wt), respectively. In addition, Mn, Ni, Pb and Cd exhibited their highest concentrations in gills from both locations. As expected, muscle tissue contained the least concentrations of all metals investigated from both sampling sites. Furthermore, all the metals investigated exhibited highest concentration in fish collected from Finima creek. These abnormal high level heavy metals accumulation observed in this location could be linked to the frequent crude oil spills as well as industrial activity around the area which might get discharged into Finima creek. In general, the mean concentrations of some toxic heavy metals investigated exceed the recommended maximum permissible limits set by the Joint FAO/WHO committee. However, some metals are within the acceptable limits. ConclusionsIn conclusion, our data showed the abnormal higher concentration of these metals and this might be toxic to the fish and other aquatic organisms directly or by extension to humans that frequently consumed such contaminated fishes.

Fish catch composition of selected small scale fishing gears used in the Bonny River, Rivers State, Nigeria

Fish catch composition of some selected small scale fishing gears (gill net, cast net, beach seine and long line) were investigated in Bonny River, Rivers State, Nigeria from August 2014 to January 2015. A total number of 25 fish species from 18 families were recorded during the study. The Mugilidae with only one species constituted the dominant family while Cichlidae, Lutjanidae, Clupeidae, had three species and Scianidae had two species of fish caught and the remaining families had one species each. Mugil cephalus constituted 28.48% of the total catches followed by C. nigrodigitatus (22.48%). In the dry season M. cephalus forms the major component landings (32.65%), followed by C. nigrodigitatus (26.53%) and S. galilaeus (12.24%) while in the wet season M. cephalus (31.06%), C. nigrodigitatus (18.63%) and T. zillii (11.80%) were the dominant fish species. Cast net was the most efficient fishing gear while gill net was the least efficient. The comparison analysis between the wet and dry seasons using t-test showed no significant difference between dry and wet seasons (t = 0.092, P &gt; 0.05).

Fish catch composition of selected small scale fishing gears used in the Bonny River, Rivers State, Nigeria

Fish catch composition of some selected small scale fishing gears (gill net, cast net, beach seine and long line) were investigated in Bonny River, Rivers State, Nigeria from August 2014 to January 2015. A total number of 25 fish species from 18 families were recorded during the study. The Mugilidae with only one species constituted the dominant family while Cichlidae, Lutjanidae, Clupeidae, had three species and Scianidae had two species of fish caught and the remaining families had one species each. Mugil cephalus constituted 28.48% of the total catches followed by C. nigrodigitatus (22.48%). In the dry season M. cephalus forms the major component landings (32.65%), followed by C. nigrodigitatus (26.53%) and S. galilaeus (12.24%) while in the wet season M. cephalus (31.06%), C. nigrodigitatus (18.63%) and T. zillii (11.80%) were the dominant fish species. Cast net was the most efficient fishing gear while gill net was the least efficient. The comparison analysis between the wet and dry seasons using t-test showed no significant difference between dry and wet seasons (t = 0.092, P &gt; 0.05).

Aspects of the Population Dynamics of Periwinkle (Tympanotonus fuscatus) along the Bonny River, Nigeria

Aspects of the Population Dynamics of Periwinkle (Tympanotonus fuscatus) along the Bonny River, Nigeria

Biodegradation of Drilling Fluid used in Upstream Sector of the Nigeria Petroleum Industry in Marine Water Environment

Biodegradation of drilling fluid (water based and oil based drilling fuild) used in the upstream sector of the Nigeria petroleum industry was investigated in marine water environment. Drilling fluid were obtainedfrom Izombe well drilling site Owerri and marine water sample from Bonny River, Nigeria. The methodology of ultimate biodegradability estimated from the ratio of Biochemical Oxygen Demand to Chemical Oxygen Demand was used to determine biodegradability. Evaluation of percentage (%) ultimate biodegradation at day 20; showed that water based drilling fluid had 59.5% to be more biodegradable than Oil based drilling fluid with 54.2%. Drilling fluid utilizing bacteria genera isolated were: Pseudomonas, Bacillus, Micrococcus and Enterobacter, with Pseudomonas having the highest frequency of 35.7%, followed by Bacillus with the frequency of 30.7%, Micrococcus had 15.4% and Enterobacter 15.4%.Fungi genera isolated include Aspergillus, Penicillium, Rhizopus Mucor. Conclusively, the study showed that water based drilling fluid is more biodegradable in marine water environment than oil based drilling fluid. Therefore it is recommended that since most oil well drilling activities in Nigeria are carried out in marine environments, water based drilling fluid should be the best option due to its high degradability rate.

Polycyclic aromatic hydrocarbons in three commercially available fish species from the Bonny and Cross River estuaries in the Niger Delta, Nigeria.

The concentrations and compositional patterns of the USEPA 16 polycyclic aromatic hydrocarbons were investigated in three commercially available fish species, Chrysichthys nigrodigitatus, Cynoglossus senegalensis and Polydactylus quadratifilis, from the Bonny and Cross River systems in the eastern Niger Delta of Nigeria. The objective of the study was to provide useful information on the levels and sources of polycyclic aromatic hydrocarbons (PAHs) and the associated risks with their consumption. The 16 PAHs in the fish samples were extracted by ultrasonication with hexane/dichloromethane, and the concentrations of PAHs in the extracts were quantified by gas chromatography-mass spectrometry. The measured concentrations of the Ʃ16 PAHs in Chrysichthys nigrodigitatus, Polydactylus quadratifilis and Cynoglossus senegalensis ranged from 106 to 491, from 43.1 to 1734 and from 96.4 to 937μgkg(-1) in the Bonny River system and from 20.0 to 975, from 24.7 to 506 and from 24.9 to 387μgkg(-1) in the Cross River system, respectively. The compositional patterns of the PAHs showed that the three- and four-ringed PAHs were the major contributors to the PAH burden in these fish species. The diagnostic ratios indicate that the PAHs in these fish samples originated mainly from combustion processes. The health risk assessment, as determined from the benzo[a]pyrene potency equivalent factor, margin of exposure and incremental lifetime cancer risk, indicates that PAHs in the majority of these fish species can induce potential carcinogenic effects.

Salinity Induced Longitudinal Zonation of Polychaete Fauna on the Bonny River Estuary

Salinity Induced Longitudinal Zonation of Polychaete Fauna on the Bonny River Estuary

Approach on Modeling Complex Deltas in Data Scarce Areas: A Case Study of the Lower Niger Delta

Compared to coastal areas, river deltas which are located in coastal zone, have complex morphologies, because river waters and sediments are transported through the deltas into the sea. A delta can have many elements included, such as barrier islands, multiple estuaries, sand beaches, or mud coasts. It can be crisscrossed by rivers emanating from different sources and carrying different types of sediments; which differentiate the segments of the coast. Generally, deltas are fertile and highly productive, attracting agricultural activities and trade and thus densely populated. The physical properties of deltas and anthropogenic activities make them vulnerable to the effects of the changing climate; however when evaluation of vulnerabilities is important many coastal deltas lack even the most basic necessary data (e.g water level) for performing such a task. Data availability is one of the most important factors for analysis, assessment and modeling of physical and other phenomena related to river and coastal systems. Although lower Niger delta is classified as one of the deltas of the world vulnerable to the effects of climate change, it has little availability of data for hydrologic and hydraulic modeling. Present paper will show how to model the possible effect of a rise in sea levels on the lower Niger delta, by dividing its coastline into 54 segments based on slope, elevation and presence of large estuaries. The segments are analyzed for vulnerability to flooding, erosion and inundation. The parts identified as the most vulnerable are modeled using Deltares’ DFlow modelling methodology, using a flexible mesh for discretization of the modeled area. Satellite derived DEM is used to calculate an upstream rating curve for the Bonny River, and to provide topographic data. Sea level rise is represented by changes in the tidal level to reflect IPCC predictions of sea levels by 2050 and 2100. The results are analyzed for flooding and inundation, increase in land loss, water depth and flood extent as compared with no sea level rise scenarios. Also, dry and wet land losses are mapped and quantified within a GIS environment.