Assessment of hydrographic and oceanographic studies of right bank outfall drain, Gharo Creek Indus Deltaic Region
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2017, Vol 10, Issue 5
Abstract
National Institute of Oceanography Pakistan was carried out the Hydrographic and Oceanographic studies of Gharo Creek for outfall structure designing.The proposed Right Bank Outfall Drain (RBOD) which is under construction is to carry Main Nara Valley Drain (MNVD) discharge from Karampur (near Sehwan) to Khuhi (near Kalri Lake) for the capacity of 3,525 cusecs and from Khuhi to Gharo Creek for the capacity of 3,975 cusecs. The proposed RBOD alignments will enroute Karampur near Sehwan RD 0+000 and outfall into Arabian Sea through Gharo Creek at RD 897.The focus of this study of Gharo Creek is on recording the Physical, Chemical and Geological Parameters such as, Tidal, Water Quality, Bathymetric survey, Sea bed sampling and tidal currents.The grain size data indicates calm depositional setting in the area of sampling. However, the presence of poorly to moderately well sort sand and the presence of shells (complete as well as broken fragments) indicates periodic events when the sea water encroaches to the upper part of the Gharo Creek. Dissolved oxygen is most important parameter to determine the water quality of the area. During the spring tidal cycle at station-1 > 6 mg/l and ranged between 6.6-8.43 mg/l, where high concentrations observed during low tide and low concentration at high tide . At station-2 dissolved oxygen during the Neap tidal cycle not follow the similar pattern of spring tide may be due to the high suspended particle cut the sun light and inhibit the photosynthesis and concentrations was in the range 4.5-8.7 mg/l. Surface seawater salinity at station-1 during the Spring tidal cycle noted was ranged between 4-6.5 ppt. Where low salinity recorded during the low tide which may be due to the input of fresh water from the Gharo stream.During High tide saline water from the creek area causes the higher salinity of Gharo creek area. During the Neap tidal cycle concentration ranges found higher than the Spring tide (3-10ppt) due to the mixing of fresh water from the Gharo fresh water Nallah.
Authors and Affiliations
Mohsin Muzaffar, Mahmood Ahmed Hashmi, Khalid Mehmood, Ibrahim Zia, Syed Imran Hasany
Keywords
Related Articles
- EP ID EP39128
- DOI -
- Views 200
- Downloads 0
Effects of Moringa oleifera leaf meal (MOLM) based diets on carcass composition and hematology of Labeo rohita fingerlings
A 70 – day feeding trial was carried out to study the effect of replacing the dietary fish meal with Moringa oleifera leaves meal (MOLM) on the carcass composition and hematological indices of Labeo rohita fingerlings. F...
Comparative diversity analysis and species composition of seagrass and macroalgae along the intertidal zone of sarangani province, Philippines
The study was carried out as an intensive sampling survey in the intertidal zones of Sarangani Province (Glan and Maasim), relying on the low tide to determine the total species number, relative species abundances, freq...
The prevalence of bovine Theileria amongst the cattles in the cattles farm of Borujencity
The current research intended to investigate the prevalence of bovine Theileria amongst the Cattles, in the cattle farm of Borujen city. To this end, 360 cows were studied, during December 2013 – December 2014, of which...
GGEBiplot analysis of genotype × environment interaction in Agropyron intermedium
In order to identify genotypes of Agropyron intermedium with high forage yield and stability an experiment was carried out in the Research station of Kermanshah Iran.The 11 accessions were sown in a randomized complete...
Impact of climatic factors on the productivity of cereal crops in the region of Meknes (Morocco)
The main objective of this work is to analyze the impact of climate change on the productivity of cereal crops in the region of Meknes. The variables used are: precipitation, temperature, weighted moving average and Nich...