scholarly journals IDENTIFIKASI POTENSI KESESUAIAN PERAIRAN UNTUK BUDIDAYA RUMPUT LAUT DI TELUK MULUT SERIBU, ROTE NDAO, NUSA TENGGARA TIMUR

2018 ◽  
Vol 13 (2) ◽  
pp. 99
Author(s):  
Ariani Andayani ◽  
Amin Pamungkas
Keyword(s):  
Water Quality ◽  
Spatial Analysis ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Ex Situ ◽  
Seaweed Cultivation ◽  
Seaweed Aquaculture ◽  
Weighted Arithmetic ◽  
Culture Cycle ◽  
A Site

Rumput laut merupakan salah satu komoditas unggulan sektor perikanan. Salah satu sentra budidaya rumput laut yang akan dikembangkan adalah Kabupaten Rote Ndao, yang memiliki ketersediaan perairan potensial untuk pengembangan budidaya rumput laut. Kajian kesesuaian perairan untuk budidaya rumput laut perlu dilakukan untuk keberlanjutan budidaya. Penelitian ini bertujuan untuk mengkaji karakteristik dan kesesuain perairan untuk pengembangan budidaya rumput laut di Teluk Mulut Seribu, Rote Ndao. Pengambilan data kualitas perairan dilakukan dengan pengukuran langsung dan mengambil sampel untuk dianalisis di laboratorium. Distribusi spasial kualitas perairan di area kajian diinterpolasi menggunakan metode IDW dengan perangkat lunak ArcGIS. Ada 4 parameter yang diperhitungkan dalam analisis spasial, yaitu: kedalaman, kecepatan arus, kecerahan dan alur layar, yang ditumpangsusun tanpa pembobotan untuk mendapatkan peta kesesuaian. Sementara itu beberapa parameter lainnya tidak masuk dalam analisis spasial karena kisaran nilainya sudah sesuai untuk budidaya rumput laut. Hasil penelitian menunjukan bahwa kesesuaian lahan untuk budidaya rumput laut di perairan Mulut Seribu mencapai 56% atau 497,68 hektar dari 879,18 hektar area kajian. Area yang sesuai untuk budidaya rumput laut tersebut memiliki potensi panen hingga 50 ton per siklus.Seaweed is one of the leading commodities in fisheries sector. In Rote Ndao regency, plans to develop seaweed aquaculture centers have been advised considering the regency’s potential coastline areas for seaweed farms. However, a site suitability study is needed to determine if the area is suitable for seaweed aquaculture to ensure its long term sustainability. This study was aimed to examine the characteristics and suitability of Teluk Mulut Seribu waters in Rote Ndao for seaweed cultivation. Data collection on water quality parameters was done via in-situ measurement and samples were collected to be analysed ex-situ in the laboratory. The full extent of spatial distributions of water quality parameters was determined using IDW interpolation tool available in ArcGIS. The four parameters used in the spatial analysis, namely: depth, current velocity, brightness, and sea transportation line were overlaid using non-weighted arithmetic mean operation to create a final composite of suitability map. The other measured parameters were not included in the spatial analysis because the value ranges were considered suitable for seaweed cultivation. The results showed that 56% or 497.68 ha from 879.18 ha of seascape in Teluk Mulut Seribu are suitable for seaweed farming.This study recommends that these suitable areas can be used for seaweed aquaculture with a predicted harvest potential up to 50 ton per culture cycle.

scholarly journals A Spatial Analysis to Define Data Requirements for Hydrological and Water Quality Models in Data-Limited Regions

Water ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 267 ◽  
Author(s):  
Ersilia D’Ambrosio ◽  
Anna De Girolamo ◽  
Marinella Spanò ◽  
Vera Corbelli ◽  
Gennaro Capasso ◽  
...  
Keyword(s):  
Water Quality ◽  
Spatial Analysis ◽  
Surface Water ◽  
Source Parameters ◽  
Quality Parameters ◽  
Point Sources ◽  
Water Quality Parameters ◽  
Limited Area ◽  
Climatic Data ◽  
Basin Scale

The objective of the present work is a spatial analysis aimed at supporting hydrological and water quality model applications in the Canale d’Aiedda basin (Puglia, Italy), a data-limited area. The basin is part of the sensitive environmental area of Taranto that requires remediation of the soil, subsoil, surface water, and groundwater. A monitoring plan was defined to record the streamflow and water quality parameters needed for calibrating and validating models, and a database archived in a GIS environment was built, which includes climatic data, soil hydraulic parameters, groundwater data, surface water quality parameters, point-source parameters, and information on agricultural practices. Based on a one-year monitoring of activities, the average annual loads of N-NO3 and P-PO4 delivered to the Mar Piccolo amounted to about 42 t year−1, and 2 t year−1, respectively. Knowledge uncertainty in monthly load estimation was found to be up to 25% for N-NO3 and 40% for P-PO4. The contributions of point sources in terms of N-NO3 and P-PO4 were estimated at 45% and 77%, respectively. This study defines a procedure for supporting modelling activities at the basin scale for data-limited regions.

scholarly journals Evaluation of Water Quality Parameters in Shatt AL-Arab, Southern Iraq, Using Spatial Analysis

Hydrology ◽  
2020 ◽  
Vol 7 (4) ◽  
pp. 79 ◽  
Author(s):  
Zahraa Q. Lateef ◽  
Abdul-Sahib T. Al-Madhhachi ◽  
Dawood E. Sachit
Keyword(s):  
Water Quality ◽  
Spatial Analysis ◽  
Arabian Gulf ◽  
Total Dissolved Solids ◽  
Quality Parameters ◽  
Data Availability ◽  
Water Quality Parameters ◽  
Total Hardness ◽  
Dissolved Solids ◽  
Southern Iraq

The present work illustrates the potential application of techniques of spatial analysis via geographic information systems (GIS) to categorize the distribution of temporal and spatial of water prediction characteristics to determine the water quality parameters of the Shatt Al-Arab River (SAA), southern Iraq. Eight main water quality parameters and three heavy metals were measured from December 2018 to October 2019. The total dissolved solids, chloride, sulfate, and total hardness were compared with previous data that were measured from 2014 to 2018 based on data availability. The geochemical characteristics were also investigated to analyze water quality parameters. The study was performed by selecting eleven stations according to the nature areas of SAA. Water samples were acquired from the eleven stations for four seasons (winter of 2018 through autumn of 2019). Results revealed that total dissolved solids ranged between 950 to 8500 mg/L, total hardness varied from 400 to 2394 mg/L as calcium carbonate (CaCO3), the sulfate ranged from 149 to 1602 mg/L, and chloride ranged from 330 to 3687 mg/L. The results showed that SAA had high salinity with a low hazard of sodicity. The SAA waters mainly fall below the Dolomite-Magnesite tie-lines which indicated the dissolution of carbonate rocks. This research also found that the study area confined from Al-Maqal station to Abu Flus port station where the salty marine water coming from the Arabian Gulf remains for longer periods. The SAA is not suitable for drinking and irrigation water according to Iraqi and World Health Organization (WHO) standards. This study suggested building a blocking dam downstream of the SAA to prevent salty water from coming back from Arabian Gulf.

scholarly journals Analisis kelayakan lahan budi daya rumput laut (Ulva sp.) pada lokasi rencana pengembangan North Sulawesi Marine Education Center di Likupang Timur

2017 ◽  
Vol 5 (3) ◽  
Author(s):  
Selvanus Edy ◽  
Edwin L. A. Ngangi ◽  
Joppy D. Mudeng
Keyword(s):  
Water Quality ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Water Quality Parameter ◽  
Seaweed Cultivation ◽  
Field Station ◽  
North Sulawesi ◽  
Marine Education ◽  
Development Area

The purpose of this research was to know and evaluate the condition of aquatic environment and water quality parameters for cultivation of seaweed Ulva sp. This research was conducted on North Sulawesi Marine Education Center (NSMEC). NSMEC is planned to be built at Marine Field Station FPIK UNSRAT located in Likupang Timur Kabupaten Minahasa Utara. The waters of NSMEC development area are geographically located at 1040.437 'LU and 12504.499' BT. The determination of 4 stations was done by purposive sampling which was considered to represent the condition of waters. Coordinate stations were recorded with GPS help. The data were collected for 14 days every 6:00 pm, at 12:00 pm and 17:00 pm. The observation of environmental conditions was carried out for protection factor and substrate of water base, while water quality parameter measured in situ included depth, brightness, temperature, dissolved oxygen (DO) salinity, pH and current velocity. Phosphate, nitrate and total suspended solid (TSS) were measured. Tide measurements were measured every hour for 24 hours. Data analysis used conformity matrices that included scores and weights for the determination of conformity classes. Class suitability was used to describe the suitability of seaweed. The results showed that the waters of the NSMEC development zone were in class S1 meaning very suitable for seaweed cultivation location. The analysis results of each station found that 4 stations were very suitable. As conclusion, water environment and water quality parameters of the waters of North Sulawesi Marine Education Center development area located at Marine Field Station FPIK UNSRAT were categorized as very suitable for seaweed cultivation, Ulva sp.Keywords: Ulva sp., feasibility analysis, water quality, location suitability

scholarly journals SUITABILITY ANALYSIS OF FLOATING CAGE CULTURE OF GROUPER FISH USING GIS IN RINGGUNG WATERS OF LAMPUNG

2017 ◽  
Vol 9 (1) ◽  
pp. 151-159
Author(s):  
Indah Febry Hastari ◽  
Rahmat Kurnia ◽  
M. Mukhlis Kamal
Keyword(s):  
Water Quality ◽  
Spatial Analysis ◽  
Dissolved Oxygen ◽  
Current Velocity ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Water Transparency ◽  
Suitability Analysis ◽  
Cage Culture ◽  
Velocity Water

The study aims to determine suitability of floating cage (KJA) culture of grouper fish in Ringgung waters of Lampung. Data were analysed using GIS for spatial analysis at five stations.  There were 10 water quality parameters measured, such as bathimetry, current velocity, water transparency, temperature, salinity, pH, dissolved oxygen, nitrate, ammonia, and phosphate. Three suitability criteria, i.e very suitable, suitable, and not suitable were used to determine the suitability of floating cage culture of grouper fish. The results show that from 99.168,5 ha of the total area used for floating cage culture of grouper fish, about 85,94% covering 8522,16 ha were classified as very suitable, 5,64% covering 559,69 ha classified as suitable, and  8,42% covering 835 ha classified as not suitable.                                     Keywords : grouper culture, suitability, Ringgung waters, Lampung Province, GIS

scholarly journals A Comparison of Water Quality Indexes for an Inland River

2021 ◽  
pp. 1-14
Author(s):  
F. A. Kondum ◽  
R. T. Iwar ◽  
E. T. Kon
Keyword(s):  
Water Quality ◽  
Sewage Treatment ◽  
Oxygen Demand ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Inland River ◽  
Weighted Arithmetic ◽  
Quality Guidelines ◽  
Quality Indexes

The present study assessed water quality parameters and attempts to compare four different Water Quality Indexes (WQIs) for consistency, similarity and reliability in assessing the water quality of river Benue -an inland river- under wet and dry seasons. The results demonstrate that River Benue is continually being polluted in both dry and wet seasons by different sources, particularly domestic sewage and storm runoffs from farmlands. The quality of the water generally exceeded physiochemical and microbiological infection risk limits recommended in water quality guidelines concerning their use for domestic, recreational and irrigational purposes. Proper sewage treatment and river quality monitoring are needed to guard against hazards to public health and vulnerable river water resources. The WQIs applied were: CCME WQI, BC WQI, Dinius’ WQI and Weighted Arithmetic WQI. To evaluate the differences between these indexes, data on ten water quality parameters (Temperature, pH, total dissolved solids, electrical conductivity, Nitrates, Phosphates, biochemical oxygen demand, dissolved oxygen and faecal coliform count) for two distinct seasons from 6 river monitoring sites along the river Benue at Makurdi reach, were used. Significant discrepancies were observed in classification results between the Dinius’ WQI and the other three WQIs. Similarly, the WA and BC WQIs showed an over-optimistic rating due to their eclipsing limitation. Among others, it was concluded that any of the four indexes except Dinius’ index can be adopted but the CCME water quality index would be best suited for assessing water quality in River Benue.

scholarly journals Formulation of a novel drinking water quality index equation with the application of multi-criteria decision making techniques

2021 ◽  
Author(s):  
Deepjyoti Deb ◽  
Tilottama Chakraborty ◽  
Mrinmoy Majumder
Keyword(s):  
Water Quality ◽  
Decision Making ◽  
Water Quality Index ◽  
Quality Index ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Quality Level ◽  
Multi Criteria Decision Making ◽  
Weighted Arithmetic ◽  
Weighted Values

Abstract Water Quality Index elucidates the complexity in assessing water quality by converting the results of various parameters into a single number for a precise interpretation of the condition of concerning water. The present study focuses on implementing Multi-Criteria decision-making techniques, namely, Analytical Hierarchy Process and Analytical Networking Process, in estimating the relative weighted significance values of the water quality parameters based on three novel criteria like Cost, Potability, and Taste. The suggested Water Quality Index technique utilizes these weighted values of the water quality parameters in depicting and expressing the water quality level in the form of an index value. Dissolved Oxygen has emerged as the most persuasive factor in evaluating water quality for drinking purposes in this study. This paper has also suggested modifying the standard weighted arithmetic water quality index for higher accuracy in results. Furthermore, Sensitivity analysis is performed to corroborate the Multi-Criteria Decision Making approach in index assessment. The accuracy of the Water Quality Index analysis shall improve if a fixed set of criteria and their preference are asserted and justified based on which the water quality parameters are ranked. Their weighted significance values will be estimated accordingly.

scholarly journals Assessment of Water Quality Parameters of Lentic and Lotic Waterbodies in Narmada Canal Command Area in Saurashtra Region, Gujarat

2020 ◽  
pp. 86-95
Author(s):  
Gupta R. ◽  
Tatu K. ◽  
Christian L. ◽  
Patel R. ◽  
Kamboj R. D.
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Aquatic Organisms ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Ex Situ ◽  
Command Area ◽  
Canal Command ◽  
Canal Command Area

<p>The objective of the present study was to assess the water quality of canal (man-made lotic waterbody) and ponds (man-made lentic waterbodies) present in Narmada Canal Command Area (NCCA) spread over four districts of Saurashtra region of Gujarat State,<em> viz.</em> Bhavnagar, Botad, Morbi, Surendranagar districts. Values of important physico-chemical parameters of water quality were determined through <em>in situ</em> and <em>ex situ</em> methods. Average values of parameters like pH (8.51), temperature (27.91 °C), electrical conductivity (6.32 ms/cm), TDS (559.18 ppm) turbidity (147.95 NTU), salinity (3.17 ppt) and phosphates (3.41mg/l) were found to be higher for pond waters, whereas the average values of DO (6.09 mg/l), total hardness (308.00 mg/l) and nitrates (2.37 mg/l) were found to be higher for the canal waters in the NCCA in the four districts. The study revealed that water quality of canals in the four districts was suitable for flora and fauna. For some ponds (n = 6) in Bhavnagar, Surendranagar and Morbi districts, the majority of water quality parameters, viz. pH, temperature, electrical conductivity, TDS, turbidity, salinity and phosphates had high values which might be undesirable from the view point of existence of some aquatic organisms. But as the values of these parameters for canal waters were lower and suitable for aquatic organisms, it is very likely that in the long run, the values of these water quality parameters of such ponds will become suitable for aquatic biota under the influence of long-term mixing of pond waters with canal waters having lower values of these parameters.</p>

scholarly journals Biological and Ecological Observation of Rasbora sp. for Conservation and Domestication Purpose in Lake Ie Sayang

2021 ◽  
Vol 934 (1) ◽  
pp. 012013
Author(s):  
F Rahmayanti ◽  
N Najmi ◽  
Munandar ◽  
D Islama
Keyword(s):  
Water Quality ◽  
Sex Ratio ◽  
Body Length ◽  
Natural Habitat ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Habitat Characteristics ◽  
Ex Situ ◽  
Small Fish ◽  
Fish Samples

Abstract Lake Ie Sayang provides habitat to several variety of aquatic animals including small fish such as Rasbora sp. However, their existences in nature are increasingly decline due to overfishing and degradation of its natural habitat. The objective of this study was to investigate some habitat characteristics, biological and ecological aspects of bileh fish (Rasbora sp.). Water quality parameters were recorded in situ and fish samples were collected from the water in four stations during April to July 2021. Fish sex ratio and body length-weight were measured ex situ. The data are presented in table and analyzed descriptively. The result revealed that this fish was mainly found at station 1. This station is characterized by the presence of several aquatic plants as feeding ground and fish sanctuary. This fish was easy to find in the mid-water level to water surface and near the land. The water quality parameters revealed that the temperature was in the range 30.2°C to 31.9°C, pH 6.13 to 6.35, DO 3.0 mg/l to 5.25 mg/l, and transparency 47 cm to 58 cm. Fish sex ratio showed that the overall number of females was higher than males with the average range of fish body length-weight were 34.05 mm to 41.33 mm and 1.25 g to 1.58 g respectively.

scholarly journals SPATIAL DISTRIBUTION OF SURFACE SALINITY AND TEMPERATURE IN BREBES SEAWATER USING SPATIAL ANALYSIS TOOLS – INVERSE DISTANCE WEIGHTED : ITS EFFECTS ON THE OTHER WATER QUALITY PARAMETERS

GEOMATIKA ◽  
2017 ◽  
Vol 23 (1) ◽  
pp. 9
Author(s):  
Wisnu Arya Gemilang ◽  
Ulung Jantama Wisha
Keyword(s):  
Water Quality ◽  
Spatial Analysis ◽  
Ph Value ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Northern Coast ◽  
Inverse Distance Weighted ◽  
Purposive Sampling ◽  
Distance Weighted ◽  
Inverse Distance

<p class="judulabsIndo"><strong>ABSTRACT</strong></p><p class="abstrakindo">The coast of Brebes is an important area for fishing activities. Along the coast of Brebes, there are mangrove conservation areas which part of green belt development program of Java Northern Coast. The purpose of this study was to determine the influence of salinity and temperature to the water quality conditions by employing a spatial analysis method. The measurement of water quality conducted by employing <em>purposive sampling method</em>. The sampling data was taken in the same time of 1 tide condition which forecasted before. The data were analyzed statistically and spatially using <em>inverse distance weighted</em> analysis. Temperature values ranged from 29.4 to 31.8 °C, conductivity ranged from 3.53 – 4.71 S.m<sup>-1</sup> with, pH ranged from 8.04 to 8.52, DO ranged from 3.18 to 6.57 mg.L<sup>-1</sup>, salinity ranged between 22.9 – 32.8 ‰, the value of salinity, temperature, and water quality parameters showed that the distribution is not uniform. It is influenced by the physical dynamics of sea water, which has an severe impact on the environment changes. Salinity and temperature have an impact to conductivity and DO variability but they are not affect the pH value. DO and pH value is higher than the previous research in Brebes waters.</p><pre><strong>Keywords: </strong>brebes<strong>, </strong>coastal, spatial analysis, water quality</pre><p class="judulabsINgg"><strong> ABSTRAK</strong></p><p class="abstrakingg">Pesisir Brebes merupakan kawasan yang penting bagi aktivitas perikanan. Disepanjang pantai Brebes terdapat kawasan konservasi mangrove yang merupakan program pembangunan kawasan sabuk hijau Pantai Utara Jawa. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh salinitas dan temperature terhadap kondisi kualitas perairan dengan menggunakan analisis spasial. Pengukuran sampel air dilakukan dengan metode purposive sampling, pengambilan data berdasarkan peramalan pasang surut. Analisa data dilakukan secara statistic dan spasial dengan menggunakan analisa inverse distance weighted. Nilai suhu berkisar antara 29.8 – 31.8°C, konduktivitas berkisar antara 3.53 – 4.71 S.m<sup>-1</sup>, pH berkisar antara 8,52 – 8,04, DO berkisar antara 3.18 – 6.57 mg.L<sup>-1</sup>, salinitas berkisar antara 22.9 – 32.8 ‰. Nilai dari salinitas, temperature dan parameter kualitas perairan menunjukkan bahwa sebaran konsentrasinya tidak merata yang dipengaruhi oleh dinamika fisis air laut dan keberadaan sungai-sungai utama yang berdampak pada perubahan lingkungan. Salinitas dan temperature memiliki dampak terhadap variasi konduktivitas dan DO, namun tidak terlalu berpengaruh terhadap nilai pH. DO dan pH mengalami peningkatan konsentrasi bila dibandingkan dengan penelitian sebelumnya di perairan Brebes.</p><p><strong><em>Kata Kunci:</em></strong><em> analisis spasial, brebes, kualitas air, pesisir, pencemaran </em></p>

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