Environmental impacts of dredging and land reclamation at Abu Qir Bay, Egypt

Mostafa, Yasser E.

doi:10.1016/j.asej.2011.12.004

Cited by 26 publications

(13 citation statements)

References 12 publications

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“…As COD and BOD results varied strongly with TSS (Table 3) results in this study for both Dredged and Undreged areas were well below permissible limits, apparently an indication that dredging has little influence in organic pollution of the water body, a relatively low COD values was also recorded for the dredging of Bay in Egypt [29] Ibeshe area is rural wherein most of the dwellers are not informed on the need to conserve the environment and lack access to information on the importance of conservation, Figure 2(e). Hence, there is the need to better information on the essence of environmental conservation.…”

Section: Discussionsupporting

confidence: 46%

Impact of Sand Dredging Activities on Ecosystem and Community Survival in Ibeshe Area of Lagos Lagoon, Nigeria

Adekunbi¹,

Elegbede²,

Akhiromen³

et al. 2018

GEP

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This study investigates the impact of sand dredging activities on coastal ecosystem and community survival around Ibeshe area of the Lagos Lagoon, Nigeria. Surface water and bottom sediment samples were collected from locations partitioned into Dredged Area (DA) and Undredged Area (UA) in the lagoon for laboratory analyses. Questionnaires were administered to community dwellers and sand miners to further analyze perception of locals. Significant differences in water quality parameters and sediments properties from Dredged and Undredged areas, and highly significant relationship between sand dredging and unsustainable ecological practices in Ibeshe were observed. One way ANOVA test indicates that all water quality parameters measured with exception of turbidity and nitrate concentration were not significantly different (P > 0.05) between Dredged and Undredged area. With exception of moisture content other sediment parameters measured were not significantly different (P > 0.05) between Dredged and Undredged areas. The project also determined the impact of dredging activities on the fisheries and fishing business in the environment. Turbidity values revealed that fishes will be negatively affected due to dredging activities; moreover dwellers pay little or no attention to conservation of the area due to unawareness. Sand dredging operations negatively influence ecological resources and water composition of the area. This project is designed to randomly sample the opinion of sand mining operators and residents; and questionnaires were administered to obtain data. Strict regulation and enforcement will assist to control ecological destruction and solve problems facing the lagoon environment.

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Section: Discussionsupporting

confidence: 46%

Impact of Sand Dredging Activities on Ecosystem and Community Survival in Ibeshe Area of Lagos Lagoon, Nigeria

Adekunbi¹,

Elegbede²,

Akhiromen³

et al. 2018

GEP

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“…The five activities that were identified from existing coastal development in the area are land reclamation projects, pile driving works, dredging works, cargo shipping traffic, and high speed ferry (HSF) traffic. Land reclamation activities have been shown to cause adverse effects on seawater quality, benthic and marine biota, and in turn negative effects on local fish stocks as well (Mostafa, 2012;Priyandes and Majid, 2009). Scoping reports have also suggested that reclamation can fragment Indo-pacific humpback dolphin habitat and indirectly reduce availability of prey resources (Sheehy, 2010).…”

Section: Identifying Human Impactsmentioning

confidence: 97%

“…Dredging works can also impact marine mammals. Entrainment of marine organisms, degradation of vital habitats such as seagrass beds and coral reefs, and changes in sediment structure could directly impact dolphin prey resources (Mostafa, 2012;Todd et al, 2014). The main impact of concern from cargo shipping traffic is not usually noise pollution, but disruptions to dolphin behaviors (Jefferson et al, 2009).…”

Section: Identifying Human Impactsmentioning

confidence: 99%

Mapping cumulative impacts on Hong Kong's pink dolphin population

Marcotte

Hung²,

Caquard

2015

Ocean & Coastal Management

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“…Global coastal marine ecology is at ever increasing risk because of the increase of impacts due to the demands of maritime trade, supporting population growth which necessitates land reclamation, maintenance and capital dredging for ports, dredging for offshore resources, and placing of sub-sea transport pipelines [1, 2]. The Australian economy is heavily dependent on maritime links because of its geographical remoteness from other continents.…”

Section: Introductionmentioning

confidence: 99%

Impact of the spatial resolution of satellite remote sensing sensors in the quantification of total suspended sediment concentration: A case study in turbid waters of Northern Western Australia

Dorji

Fearns

2017

PLoS ONE

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The impact of anthropogenic activities on coastal waters is a cause of concern because such activities add to the total suspended sediment (TSS) budget of the coastal waters, which have negative impacts on the coastal ecosystem. Satellite remote sensing provides a powerful tool in monitoring TSS concentration at high spatiotemporal resolution, but coastal managers should be mindful that the satellite-derived TSS concentrations are dependent on the satellite sensor’s radiometric properties, atmospheric correction approaches, the spatial resolution and the limitations of specific TSS algorithms. In this study, we investigated the impact of different spatial resolutions of satellite sensor on the quantification of TSS concentration in coastal waters of northern Western Australia. We quantified the TSS product derived from MODerate resolution Imaging Spectroradiometer (MODIS)-Aqua, Landsat-8 Operational Land Image (OLI), and WorldView-2 (WV2) at native spatial resolutions of 250 m, 30 m and 2 m respectively and coarser spatial resolution (resampled up to 5 km) to quantify the impact of spatial resolution on the derived TSS product in different turbidity conditions. The results from the study show that in the waters of high turbidity and high spatial variability, the high spatial resolution WV2 sensor reported TSS concentration as high as 160 mg L-1 while the low spatial resolution MODIS-Aqua reported a maximum TSS concentration of 23.6 mg L-1. Degrading the spatial resolution of each satellite sensor for highly spatially variable turbid waters led to variability in the TSS concentrations of 114.46%, 304.68% and 38.2% for WV2, Landsat-8 OLI and MODIS-Aqua respectively. The implications of this work are particularly relevant in the situation of compliance monitoring where operations may be required to restrict TSS concentrations to a pre-defined limit.

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Environmental impacts of dredging and land reclamation at Abu Qir Bay, Egypt

Cited by 26 publications

References 12 publications

Impact of Sand Dredging Activities on Ecosystem and Community Survival in Ibeshe Area of Lagos Lagoon, Nigeria

Impact of Sand Dredging Activities on Ecosystem and Community Survival in Ibeshe Area of Lagos Lagoon, Nigeria

Mapping cumulative impacts on Hong Kong's pink dolphin population

Impact of the spatial resolution of satellite remote sensing sensors in the quantification of total suspended sediment concentration: A case study in turbid waters of Northern Western Australia

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