scholarly journals An Integrated Field Data and Remote Sensing Approach for Impact Assessment of Human Activities on Macro-benthos Biodiversity Along Western Coast of Aqaba Gulf

2021 ◽  
Author(s):  
Hussein A. El-Naggar ◽  
El-Sayed S. Salem ◽  
Sameh B. El-Kafrawy ◽  
Mansour A. Bashar ◽  
Mohamed Ashour ◽  
...  
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Human Activities ◽  
Marine Ecosystems ◽  
Gulf Of Aqaba ◽  
Western Coast ◽  
Marine Habitats ◽  
Abundance And Diversity ◽  
Macro Benthos ◽  
Egyptian Coast

Abstract The Egyptian coast of Aqaba Gulf, north of the Red Sea suffers from severe destruction and deterioration in habitat and biodiversity due to anthropogenic activities and flooding. The present work aims to evaluate the impacts of different human activities and flooding on the biodiversity of macro-benthos invertebrates along the Egyptian coast of the Aqaba Gulf. From January 2019 to December 2019, many field trips (12 trips) were conducted to survey macro-benthos-invertebrate communities and monitor water quality at nine sites within three sectors along the study area. Each site was divided into four ecological zones and one of five categories, according to the main activities at each site. Furthermore, satellite data were used to monitor the progress of land use, and turbidity in the study area. Therefore, the current study assessing the relationship between these factors and water quality and macro-benthos-invertebrates distributions, similarity, diversity, dominance and abundance. The results revealed that fifty-three macro-benthos-invertebrates species belonging to four phyla (Crustacea, Mollusca, Echinodermata and Annelida) were recorded. Echinometra mathaei was the major eudominant species. The northern part of the Gulf was higher abundance and diversity with low land use and lowest water turbidity, while the south part showed the contrary findings. All statics analysis confirmed that the dissolved oxygen concentration was considered the only limiting factor for the abundance and diversity of macro-benthos invertebrates. Also, the variation in activities at investigated sites affected the dominance state of species in each site. Moreover, GPS data confirmed that the tourism activity had the largest influence on marine ecosystems and biodiversity, followed by fishing and desalination practices. Otherwise, flooding has significant influence on marine habitats and creates a habitat in which other certain species can be survived. In the absence of awareness, intervention and disregard for the effective coastal zone management concept, especially for the unique marine ecosystems such as the Gulf of Aqaba, the degradation of biodiversity will continue until extinction, and human life is rendered unsustainable.

An Integrated Field Data and Remote Sensing Approach for impact assessment of human activities on epifauna macro‐benthos biodiversity along Western coast of Aqaba Gulf

Ecohydrology ◽  
2021 ◽  
Author(s):  
Hussein A. El‐Naggar ◽  
El‐Sayed S. Salem ◽  
Sameh B. El‐Kafrawy ◽  
Mansour A. Bashar ◽  
Walaa M. Shaban ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Impact Assessment ◽  
Human Activities ◽  
Field Data ◽  
Western Coast ◽  
Macro Benthos

scholarly journals Trend Of Water Quality Status In Kelantan River Downstream, Peninsular Malaysia

2020 ◽  
Vol 16 (3) ◽  
pp. 178
Author(s):  
Arniza Fitri ◽  
Khairul Nizam Abdul Maulud ◽  
Dian Pratiwi ◽  
Arlina Phelia ◽  
Farli Rossi ◽  
...  
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Water Samples ◽  
Human Activities ◽  
Oxygen Demand ◽  
Quality Parameters ◽  
Peninsular Malaysia ◽  
Water Quality Status ◽  
Quality Status

The issues of freshwater pollutions and the high demand of clean freshwater for daily human activities have forced developing countries such as Malaysia to continuously monitor the quality of the freshwater. The present study objective is to present the trend of water quality status in the Kelantan River downstream, Peninsular Malaysia from 2005 to 2018. Water samples were collected during dry and monsoon seasons from a sampling station located at downstream of the Kelantan River. Water quality parameters such as temperature, pH and dissolved oxygen (DO) were measured in situ while other parameters were analysed in the laboratory based on retrieved water samples. Water quality status was determined based on National Water Quality Standard (NWQS) for River in Malaysia by calculating the water quality index (WQI) according to the concentration of six water quality parameters involving pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), suspended solids (TSS) and Ammonia Nitrogen (AN). The results showed that Kelantan River had good water quality during the dry season classified in Class II at 2005. The water quality was found to be slightly lower during the monsoon season in year 2006. In addition, increasing the number of construction, human activities in the land use areas, land use changes and the sewage water from domestic, industrial, wet market and food outlets in the Kelantan State have declined the water quality in Kelantan River from Class II (in 2005) to Class III (in 2010 and 2011) and to become Class IV in 2017 to 2018. The results of the present study are expected to give valuable information for the water managers in order to deal with better strategies in controlling the quality of freshwater at the Kelantan River and minimize the incidence of pollution-oriented problems, thus the water can be utilized for various water uses with appropriate quality.

scholarly journals Tourism Impact on Marine Ecosystems in the North of Red Sea

2019 ◽  
Vol 13 (1) ◽  
pp. 10
Author(s):  
Abderrahim Lakhouit
Keyword(s):  
Coral Reefs ◽  
Red Sea ◽  
Human Activities ◽  
Marine Ecosystems ◽  
Tourism Impact ◽  
The North ◽  
Algae Blooms ◽  
Marine Habitats ◽  
The Impact ◽  
Northern Red Sea

The unique marine environment of the northern Red Sea region is among the richest and most productive marine ecosystems in the world. The sea is populated with extensive algae blooms and at least five types of coral reefs. However, the region’s tourism sector is largely dependent on the surrounding environment, including the coral reefs, which are highly sensitive to human activities. A large tourist project (Neom) is scheduled to be installed in the northern Red Sea, further increasing tourist activities in the area and leading to human intrusion into crucial but fragile marine habitats such as seagrass beds, coral reefs and mangrove stands. The present study investigates how human activities are currently affecting Red Sea ecosystems. Field visits were done in order to investigate and to study human activities impact on marine ecosystems in the north of Red Sea. To the best of our knowledge, this work is the first of its kind to evaluate the impact of tourism on marine ecosystems in Saudi Arabia’s northern Red Sea coast.

scholarly journals How Climate Change and Land Use/Land Cover Change Affect Domestic Water Vulnerability in Yangambi Watersheds (D. R. Congo)

Land ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 165
Author(s):  
David Ushindi Chishugi ◽  
Denis Jean Sonwa ◽  
Jean-Marie Kahindo ◽  
Destin Itunda ◽  
Josué Bahati Chishugi ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Land Use ◽  
Water Resources ◽  
Human Activities ◽  
Edge Density ◽  
Land Use Land Cover ◽  
Domestic Water ◽  
Dense Forest ◽  
Water Vulnerability

In the tropics, the domestic water supply depends principally on ecosystem services, including the regulation and purification of water by humid, dense tropical forests. The Yangambi Biosphere Reserve (YBR) landscape is situated within such forests in the Democratic Republic of Congo (DRC). Surprisingly, given its proximity to the Congo River, the YBR is confronted with water issues. As part of its ecosystem function, the landscape is expected to reduce deterioration of water quality. However, environmental consequences are increasing due to conversion of its dense forest into other types of land use/land cover (LULC) in response to human activities. It is therefore important to check how the physicochemical quality parameters of water resources are influenced by landscape parameters—and to know if the population can adapt to this water vulnerability. To do this, we analyzed the watershed typology (including morphometric and LULC characteristics) and the physical and chemical parameters of water within the principal watershed’s rivers. We also analyzed data from surveys and the Yangambi meteorological station. We found that some landscape indices related to LULC significantly influence water quality deterioration in Yangambi. On average, each person in the Yangambi landscape uses 29–43 liters of water per day. Unfortunately, this falls short of World Health Organization standards regarding some parameters. The best fitted simple linear regression model explains the variation in pH as a function of edge density of perturbed forest, edge density of crop land and patch density of dense forest up to 94%, 92% and 90%, respectively. While many researchers have identified the consequences of climate change and human activities on these water resources, the population is not well-equipped to deal with them. These results suggest that water management policies should consider the specificities of the Yangambi landscape in order to develop better mitigation strategies for a rational management of water resources in the YBR in the context of climate change.

scholarly journals Impacts of Human Interventions on Water Quality of Upper Ganga River Near Haridwar, Uttarakhand: A GIS-Based Analysis

2021 ◽  
Author(s):  
Pradip Kumar Maurya ◽  
Sk Ajim Ali ◽  
Ateeque Ahmad Ahmad ◽  
Krishna Kumar Maurya
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Root Mean Square Error ◽  
Mean Square Error ◽  
Spatial Correlation ◽  
Water Quality Index ◽  
Human Activities ◽  
Quality Index ◽  
Mean Square

The water quality of the river is becoming deteriorated due to human interference. It is essential to understand the relationship between human activities and land-use types to assess the water quality of a region. GIS has the latest tool for analyzing the spatial correlation. Land use land cover and change detection is the best illustration to show the human interactions on land features. The study assessed water quality index of upper Ganga River near Haridwar, Uttarakhand and spatially correlated them with changing land use to reach a logical conclusion. At the upper course of Ganga along 78 Km long from Kaudiyala to Bhogpur, water samples were collected from five stations. For water quality index the physicochemical parameters like pH, EC, DO, TDS, CaCO3-, CaCO3, Cl¯, Ca++, Mg++, Na+, K+, F-, Fe2+ were considered. The result of the spatial analysis was evaluated through error estimation and spatial correlation. The root mean square error between spatial land use and water quality index of selected sampling sites was estimated as 0.1443. The spatial correlation between land-use change and site-wise differences in water quality index has also shown a high positive correlation with R² = 0.8455. The degree of positive correlation and root mean square error has strongly indicated that the water quality of the river at the upper course of Ganga is highly impacted through human activities.

scholarly journals Hubungan Kelimpahan dan Keanekaragaman Fitoplankton dengan Kelimpahan dan Keanekaragaman Zooplankton di Perairan Pulau Serangan, Bali

2018 ◽  
Vol 4 (2) ◽  
pp. 324
Author(s):  
Luh Putu Puspita Dewanti ◽  
I Dewa Nyoman Nurweda Putra ◽  
Elok Faiqoh
Keyword(s):  
Water Quality ◽  
Principal Component Analysis ◽  
Correlation Analysis ◽  
Human Activities ◽  
Pearson Correlation ◽  
Principal Component ◽  
Phytoplankton Abundance ◽  
Pearson Correlation Analysis ◽  
Abundance And Diversity ◽  
The Relationship

Plankton is one of the biological resources that have an important role in the marine ecosystem. Plankton life is strongly influenced by the water quality parameters, one of which is the content of nutrients (nitrates and phosphates). Increased nutrient content caused by the increased load input from human activities. Serangan Island waters including the coastal ecosystem is widely used for a variety of human activities, such as tourism, aquaculture, residential, and transportation. All human activity will affect water quality will lead to an increase in nutrients and organic matter which in turn can lead to changes in water quality chemical physics and structure of plankton. The purpose of this study was to determine the relationship of the abundance and diversity of phytoplankton abundance and diversity of zooplankton and to know the physical parameters - chemical effect on the abundance of plankton. The method used is the Pearson correlation analysis to determine the relationship between abundance and diversity of phytoplankton abundance and diversity of zooplankton, and principal component analysis to look at the parameters of the water the most influence on the abundance of plankton. Results of Principal Component Analysis showed that the waters of the parameters that influence the abundance of plankton varies at each observation station. Pearson correlation analysis showed a strong relationship between the abundance of phytoplankton to zooplankton abundance with a correlation value of 0.64.

scholarly journals A Critical Analysis of the Water Quality Impacts on Water Resources in the Athi River Drainage Basin, Kenya

2021 ◽  
Author(s):  
Shadrack M. Kithiia
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Water Resources ◽  
Human Activities ◽  
Critical Analysis ◽  
Drainage Basin ◽  
Water Shortage ◽  
Mitigation Measures ◽  
Quality Degradation ◽  
Water Uses

This paper presents a critical analysis of the water quality changes and their impacts on water resources within the Athi River Catchment and its implications of the people’s livelihoods. The paper analyses the effects of land use activities on water quality in the headwater areas of the basin which has a profound impacts on the downstream water uses within the basin. The paper in addition makes an attempt to relate the impacts of human activities on water quality degradation trends within the basin against the available and potential water resources in the basin. The Athi River is the second largest in Kenya and traverses areas of diverse land use activities from the more agricultural head water areas through the industrial hub of Kenya in Nairobi to the Indian Ocean discharging its waters near Malindi town north of Mombasa. The paper gives a detailed analysis of the impacts of human activities on the water resources in regard to water quality degradation, pollution and mitigation measures. The study was based on field data collection and measurements and laboratory analysis. The researcher used 10 sampling points located within the Nairobi sub-basin and distributed along the river profile to examine the trends in water quality degradation and its implication on human livelihoods in the basin. The researcher noted a declining trend in water quality status downstream the river profile. A close analysis of the water situation in the basin paints a blink future on the available water resources in the basin against the projected water uses and increasing population compounded by the impacts of water pollution and climate change. This is likely to increase incidences of water shortage and food insecurity in many parts of the basin. The researcher recommends more investments in water harvesting infrastructure, environmental conservation and adoption of modern water management technologies.

scholarly journals Impacts of Land Use Change on Water Quality Index in the Upper Ganges River Near Haridwar, Uttarakhand: A GIS-Based Analysis

Water ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 3572
Author(s):  
Pradip Kumar Maurya ◽  
Sk Ajim Ali ◽  
Raied Saad Alharbi ◽  
Krishna Kumar Yadav ◽  
Faisal M. Alfaisal ◽  
...  
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Root Mean Square Error ◽  
Spatial Correlation ◽  
Water Quality Index ◽  
Human Activities ◽  
Quality Index ◽  
Mean Square ◽  
Ganges River

The water quality of rivers is deteriorating due to human interference. It is essential to understand the relationship between human activities and land use types to assess the water quality of a region. GIS is the latest tool for analyzing this spatial correlation. Land use land cover, and change detection are the best illustration for showing the human interactions with land features. This study assessed water quality index of the upper Ganges River near Haridwar, Uttarakhand, and spatially correlated it with changing land use to reach a logical conclusion. In the upper course of Ganges, along a 78-km stretch from Kaudiyala to Bhogpur, water samples were collected from five stations. For water quality index, physicochemical parameters like pH, EC, DO, TDS, CaCO3−, CaCO3, Cl−, Ca2+, Mg2+, Na+, K+, F−, Fe2+ were considered. The results of the spatial analysis were evaluated through error estimation and spatial correlation. The root mean square error between spatial land use and water quality index at the selected sampling sites was estimated to be 0.1443. The spatial correlation between land use change and site-wise differences in water quality index also showed a high positive correlation, with R2 = 0.8455. The degree of positive correlation and root mean square error strongly indicated that the water quality of the river in the upper course of the Ganges is highly impacted by human activities.

scholarly journals Combined effects of human pressures on Europe’s marine ecosystems

AMBIO ◽  
2021 ◽  
Author(s):  
Samuli Korpinen ◽  
Leena Laamanen ◽  
Lena Bergström ◽  
Marco Nurmi ◽  
Jesper H. Andersen ◽  
...  
Keyword(s):  
Human Activities ◽  
Spatial Scales ◽  
Marine Ecosystems ◽  
Shelf Area ◽  
Combined Effects ◽  
Marine Habitats ◽  
Environmental Status ◽  
Recent Developments ◽  
Blue Growth ◽  
Human Use

AbstractMarine ecosystems are under high demand for human use, giving concerns about how pressures from human activities may affect their structure, function, and status. In Europe, recent developments in mapping of marine habitats and human activities now enable a coherent spatial evaluation of potential combined effects of human activities. Results indicate that combined effects from multiple human pressures are spread to 96% of the European marine area, and more specifically that combined effects from physical disturbance are spread to 86% of the coastal area and 46% of the shelf area. We compare our approach with corresponding assessments at other spatial scales and validate our results with European-scale status assessments for coastal waters. Uncertainties and development points are identified. Still, the results suggest that Europe’s seas are widely disturbed, indicating potential discrepancy between ambitions for Blue Growth and the objective of achieving good environmental status within the Marine Strategy Framework Directive.

Sign in / Sign up

Export Citation Format

Share Document