scholarly journals ANALISIS KONDISI PERAIRAN DITINJAU DARI KANDUNGAN KLOROFIL-a, NITRAT, FOSFAT DAN TOTAL SUSPENDED SOLID (TSS) DI PERAIRAN BEDONO DEMAK Analysis of Water Conditions Based on Chlorophyll-a, Nitrate , Phosphate and Total Suspended Solid (TSS) in the Coastal waters of Bedono Demak

2019 ◽  
Vol 8 (3) ◽  
pp. 250-259
Author(s):  
Tasya Marhana ◽  
Max Rudolf Muskananfola ◽  
Sigit Febrianto

ABSTRAK Perairan pesisir Bedono Demak mendapat masukan dari buangan berbagai aktivitas manusia (pemukiman, pertambakan dan jalur transportasi perahu nelayan) yang mengalir ke sungai Bedono dan juga adanya hutan mangrove mengakibatkan terjadinya perubahan kualitas air pada perairan tersebut karena perairan berpotensi menjadi kaya bahan organik. Tujuan dari penelitian adalah untuk mengetahui status kesuburan perairan Bedono Demak serta mengetahui hubungan konsentrasi klorofil-a, nitrat, fosfat dan total suspended solid. Penelitian dilakukan pada bulan Desember 2018. Metode yang digunakan pada penelitian adalah metode deskriptif kuantitatif. Penentuan lokasi dilakukan secara purposive pada 3 stasiun, sedangkan sampling yang digunakan mengacu pada teknik random sebanyak 3 titik. Analisis status kesuburan perairan dengan metode TSI dan analisa data untuk mengetahui hubungan antar variabel menggunakan regresi linear berganda. Hasil dari penelitian menunjukkan bahwa konsentrasi klorofil-a berkisar antara 0,007-0,012 mg/l, nitrat 0,031-0,934 mg/l, fosfat 0,291-1,732 mg/l dan TSS 320-440 mg/l. Status kesuburan perairan Bedono termasuk kategori eutrofik sedang. Hubungan klorofil-a dengan nitrat, fosfat dan TSS di perairan Bedono menunjukkan tidak berhubungan signifikan. ABSTRACT The Coastal waters of Bedono Demak gets input from discharges of human activities (residential, aquaculture and fishing boat transportation lines) which flows into the river and also the existence of mangrove forest so resulted in a change of water quality in the waters because the waters enriched with organic matters.  This research aims to know the category of trophic status in Bedono Demak also to understand the correlation of chlorophyll-a, nitrate and phospate and Total Suspended Solid. This research was conducted on December 2018. The method used in this research was quantitative descriptive method. Location determination is done purposively at three stations, while the sampling used refers to a random technique of three points Trophic State Index (TSI) was used to analyze the trophic status in the coast of Bedono and data analysis to find out the correlation among variabels used multiple linear regression method. The result of this research shows that the concentration of chlorophyll-a ranged from 0,007-0,012 mg/l, nitrate 0,031-0,934 mg/l, phosphate 0,291-1,732 mg/l and TSS 320-440 mg/l. The trophic status in the coast of Bedono is categorized as moderate eutrophic. The correlation between chlorophyll-a with nitrate, phosphate and TSS had not significantly related in the Coastal waters of Bedono Demak.

2019 ◽  
Vol 8 (3) ◽  
pp. 155-161
Author(s):  
Elvina Gianina Meliala ◽  
Pujiono Wahyu Purnomo ◽  
Arif Rahman

ABSTRAK Pesisir Sayung terletak di utara Laut Jawa dan didominasi oleh hutan mangrove dengan populasi penduduk yang tinggi. Adanya hutan mangrove dan aktivitas manusia di sekitar pesisir berpotensi membuat perairan menjadi kaya bahan organik. Tujuan dari penelitian adalah untuk mengetahui status dan sebaran kesuburan perairan dan mengkaji hubungan antara klorofil-a, bahan organik, nitrat dan fosfat di Desa Bedono dan Timbulsloko, Sayung, Demak. Penelitian dilakukan pada bulan Desember 2018. Metode yang digunakan pada penelitian adalah metode deskriptif. Teknik pengambilan sampel menggunakan metode purposive sampling pada 2 stasiun dengan 4 titik di setiap stasiunnya. Analisis status kesuburan perairan dengan metode TSI dan sebaran kesuburan dengan metode IDW. Analisa data untuk mengetahui hubungan antar variabel menggunakan regresi linear berganda. Hasil pengukuran menunjukkan bahwa status kesuburan perairan di pesisir Sayung termasuk kategori eutrofik. Kesuburan perairan di Bedono (69,04) lebih tinggi daripada Timbulsloko (67,94) dan cenderung menurun ke arah laut. Klorofil-a berhubungan kuat dengan nitrat, fosfat dan BOD (r=0,915). Pada perairan Bedono, keberadaan klorofil-a cenderung dipengaruhi oleh nitrat, sedangkan pada perairan Timbulsloko cenderung dipengaruhi oleh fosfat. ABSTRACT The Coast of Sayung is located in the North of Java Sea. This area is dominated by mangrove forest with a high rural population. The existence of mangrove forest and human activities in the area make the waters enriched with organic matters. Aims of this research are to know the category and distribution of trophic status also to understand the correlation among organic matters, chlorophyll-a, nitrate and phospate in Bedono and Timbulsloko, Sayung, Demak. This research was conducted on December 2018 and used descriptive method. The technical method of sampling used purposive sampling on two stations of four points each. Trophic State Index (TSI) used to analyze the trophic status in the coast of Sayung an the distribution used IDW method. Data analysis to find out the correlation among variabels used multiple linear regression method. The final result shows that the trophic status in the coast of Sayung is categorized as eutrophic. The trophic state in Bedono (69,04) is higher than in Timbulsloko (67,94). Chlorophyll-a had strong correlation with nitrate, phosphate and BOD (r=0,915). In Bedono, chlorophyll-a mostly affected by nitrate while in Timbulsloko it mostly affected by phosphate.


2018 ◽  
Vol 5 (2) ◽  
pp. 177 ◽  
Author(s):  
Aisya Jaya Dhannahisvara ◽  
Hartono Harjo ◽  
Pramaditya Wicaksono ◽  
Ferman Setia Nugroho

Spatial distribution and concentration of Total Suspended Solid (TSS) is one of the coastal parameters which are required to be examined in order to understand the quality of the water. Rapid development of remote sensing technology has resulted in the emergence of various methods to estimate TSS concentration. SPOT-6 data has spatial, spectral, and temporal characteristics that can be used to estimate TSS concentration. The purposes of this research are (1) to determine the best method for estimating TSS concentration, (2) to map TSS distribution, and (3) to determine the correlation between TSS concentration and chlorophyll-a concentration using SPOT-6 data in Segara Anakan. The estimation of TSS concentration in this research was performed using empirical model built from SPOT-6 and TSS field data. Bands used in this research are single band data (blue, green, red, and near infrared) and transformed bands such as band ratio (12 combinations), Normalized Difference Suspended Solid Index (NDSSI), and Suspended Solid Concentration Index (SSC). The result shows that blue, green, red, and near infrared bands and SSC index significantly correlated to TSS. Afterwards, regression analysis was performed to determine the function that can be used to predict TSS concentration using SPOT-6 data. Regression function used are linear and non-linear (exponential, logarithmic, 2nd order polynomial, and power). The best model was chosen based on the accuracy assessment using Standard Error of Estimate (SE). The selected model was used to calculate total TSS concentration and was correlated with chlorophyll-a field data. The result of accuracy test shows that the model from blue band has an accuracy of 70.68 %, green band 70.68 %, red band 75.73 %, near infrared band 65.58 %, and SSC 73.67 %. The accuracy test shows that red band produced the best prediction model for mapping TSS concentration distribution. The total TSS concentration, which was calculated using red band empirical model, is estimated to be 6.13 t. According to the correlation test, TSS concentration in Segara Anakan has no significant correlation with chlorophyll-a concentration, with a coefficient correlation value of -0.265.


2016 ◽  
Vol 18 (2) ◽  
pp. 19-28
Author(s):  
Roumen Kalchev ◽  
Árpád Berczik ◽  
Michaela Beshkova ◽  
Mária Dinka ◽  
Hristina Kalcheva ◽  
...  

Abstract The phytoplankton limitation conditions in a few Bulgarian and Hungarian wetlands and in two more sampling sites, one for each Danube stretch, were investigated by means of trophic state index of Carlson (1977) for phytoplankton chlorophyll-a (CHL), Secchi disk depths (SD), total phosphorus (TP), and total nitrogen (TN) concentrations. Phytoplankton of both river sites was not limited by non-algal turbidity, nor was they phosphorus and nitrogen limited. In summer months the studied wetlands were predominantly nitrogen limited, while in spring and autumn limitation by non-algal turbidity prevailed.


2012 ◽  
Vol 2 (2) ◽  
pp. 41-51
Author(s):  
VIVI ENDAR HERAWATI ◽  
AGUS HARTOKO ◽  
SUMINTO SUMINTO

Herawati VE, Hartoko A, Suminto. 2012. The suitability of Segara Anakan waters, Cilacap, Central Java as cultivation area of Polymesoda erosa based on primary productivity using satellite image. Bonorowo Wetlands 2: 41-51. Segara Anakan waters, Cilacap, Central Java is a natural habitat of totok shells (Polymesoda erosa) of high economic value, however, the sustainability of these protein sources is threatened due to habitat degradation and over-harvesting. This study aims to (i) analyze the suitability of Segara Anakan Lagoon to cultivate the toktok shells, as a conservation effort, based on the aspect of primary productivity and chlorophyll-a; (ii) to analyze the suitability of Segara Anakan waters to cultivate the toktok shells based on field data and SPOT satellite image data, ie chlorophyll a, water surface temperature, total suspended solid, pH, dissolved oxygen, salinity, as well as nitrate and phosphate content. The basic concept of this research is combining SPOT satellite image analysis and direct field measurement of some primary productivity parameters in Segara Anakan waters to know the suitability for thokthok shells cultivation. Based on scoring and suitability level, stations 1 and 3 (in the western estuary of Segara Anakan lagoon) are " Suitable on condition" (Sesuai Bersyarat) for the cultivation of totok shells, covering an area of 326,035039 ha. While, stations 2, 4, 5, 6 and 7 (other locations) are " Not Suitable" (Tidak Sesuai) for the cultivation of totok shells, covering an area of 557,057573 ha.


Author(s):  
Bidawi Hasyim ◽  
Wawan K Harsanugraha ◽  
Yennie Marini ◽  
Anneke K S

One of several factors for seaweed culture success is to determine the suitable location for seaweed culture based on oceanographic parameters. The best location for seaweed culture is coastal waters with suitable requirements for total suspended solid (TSS), sea surface temperature (SST), and area with calm water that is sheltered from waves, strong current and predator, such as lagoon in the middle of an atoll. The purpose of this study was to locate the suitable area for seaweed culture in Pari island, Seribu island using SPOT and LANDSAT-TM data. The results showed that TSS in Pari island waters were in the range of 150 mg/l - 200 mg/l, SST in the range of 22-29°C, while coral reefs and lagoon was only available in some coastal locations. The analysis showed that most of Pari island waters were suitable for seaweed culture.


2020 ◽  
Vol 27 (1) ◽  
pp. 40-53
Author(s):  
Celestina Jumawan ◽  
Ephrime Metillo ◽  
Maria Theresa Mutia

Arius maculatus, commonly known as spotted catfish and locally known as Tambangongo, has a great potential as an aquaculture species, but there is very limited information known for the stocks in Panguil Bay. This study aimed to assess the wild stocks of A.maculatus, and make an inventory of the fishing boat and gears in two stations in Panguil Bay, namely: Tangub, Misamis Occidental and Baroy, Lanao del Norte. Length frequencies were analyzed to provide estimates of growth, mortality, exploitation ratio, and recruitment pulse of A. maculatus in the bay. A total of 589 boats (324 motorized boats and 265 non-motorized boats) were recorded from the sites. There were 473 units of 15 types of fishing gear used in the sites and 6 types of these were only used in catching A. maculatus. A total of 3,259 specimens were collected for 12 months from the sites. The aquatic habitat of A. maculatus from the two sites was characterized by a pH range of 7.9-8.1, temperature of 28.5-29.1°C, salinity of 13.31-15.9 ppt, dissolved oxygen levels of 4.0-5.41 ppm, and total suspended solid values of 0.1-0.6 g/L. Reproductive biology analysis indicates that eggs start to mature from October to December, then spawning starts from January to March, and the fish fry recruitment starts in April and May. A. maculatus can grow up to 98.95 cm with an asymptotic length of 98.86 cm (K value = 0.35) equivalent to asymptotic weigth of 8,750 g. Mortality Z = 0.99, with natural mortality M = 0.67 and fishing mortality F = 0.33. This study revealed that A. maculatus in Panguil Bay is not over-exploited since the exploitation rate (E = 0.33) is minimal and large individuals can still be collected from the field.


2021 ◽  
Vol 24 (2) ◽  
pp. 223-231
Author(s):  
Jarot Marwoto ◽  
Oceana Windyartanti ◽  
Muslim Muslim

The large number of activities along the West Banjir Kanal river has triggered a change in the condition of its sea waters. The condition most affected is turbidity which caused high concentration of Total Suspended Solid (TSS) in estuary waters and interfere with the entry of sunlight into the waters. The purpose of the study is to determine the effect of the of concentration TSS on the concentration chlorophyll a and dissolved inorganic phosphate (DIP) in the waters of West Banjir Kanal estuary. Water sampling was conducted on October 3, 2019. Water quality parameters such as brightness, pH, temperature, DO and salinity were measured in situ. Meanwhile, chlorophyll a, TSS and DIP measurements were analyzed in the laboratory. The results showed that the highest concentration of TSS, chlorophyll a and DIP were in the estuary area and decreased with further distance from the river mouth with concentration were 70.17-151.50 mg/L, 0.03–2.67 µg/L and 0.71–0.98 µM respectively. Based on the results of the Principal Component Analysis (PCA) showed that TSS affected chlorophyll a by 8.7% (r=0.392; p<0.05) and DIP by 54.46% (r=0.931; p<0.01). The low regression between TSS and chlorophyll a was due to the presence of large amounts of inorganic particles in the West Banjir Kanal river, which makes the river waters become turbid. So, the turbidity of the waters caused the release of phosphate in the sediment to water column which was used by phytoplankton for photosynthesis, so the TSS not only contain sediment particles, but also phytoplankton. Banyaknya aktivitas di sepanjang sungai Banjir Kanal Barat Semarang, memicu kondisi perairan lautnya menjadi berubah.  Kondisi yang paling terpengaruh adalah kekeruhan yang menyebabkan tingginya konsentrasi Material Padatan Tersuspensi (MPT) di perairan muara dan mengganggu masuknya cahaya matahari ke perairan. Penelitian ini bertujuan untuk mengetahui pengaruh MPT terhadap konsentrasi klorofil-a dan fosfat inorganik terlarut (DIP=Dissolved Inorganic Phosphate) di perairan Muara Banjir Kanal Barat Semarang. Pengambilan sampel air dilakukan pada tanggal 3 Oktober 2019. Parameter kualitas perairan seperti kecerahan, pH, suhu, DO dan salinitas diukur secara in situ. Sedangkan pengukuran klorofil-a, MPT dan DIP dianalisis di laboratorium. Hasil penelitian menunjukkan bahwa konsentrasi MPT, klorofil-a dan DIP tertinggi di daerah muara sungai dan menurun dengan makin jauhnya muara sungai dengan konsentrasi secara berturut-turut sebesar 70,17-151,50 mg/L, 0,03-2,67 µg/L dan 0,71-0,98 µM. Berdasarkan hasil Analisis Komponen Utama (AKU) menunjukkan bahwa MPT mempengaruhi klorofil-a sebesar 8,7% (r = 0,392; P < 0,05) dan fosfat inorganik terlarut sebesar 54,46% (r = 0,931; P < 0,01). Rendahnya hubungan antara MPT dengan klorofil-a ini disebabkan oleh adanya masukan partikel anorganik dalam jumlah besar di badan Sungai Banjir Kanal Barat yang membuat perairan sungai menjadi keruh. Jadi kekeruhan perairan menyebabkan terlepasnya fosfat di sedimen yang dimanfaatkan oleh fitoplankton untuk proses fotosintesa, sehingga yang terkandung dalam MPT selain partikel sedimen juga fitoplankton.


1970 ◽  
Vol 32 (2) ◽  
pp. 49-54
Author(s):  
Suhendar I. Sachoemar ◽  
Agus Kristijono ◽  
Tetsuo Yanagi

The oceanographic characteristics of Klabat Bay in Bangka Island of Indonesia were investigated by using a series of temperature, salinity, turbidity, TSS (total suspended solid), transparency, DIN (Dissolved Inorganic Nitrogen), DIP (Dissolved Inorganic Phosphorus), DO (Dissolved Oxygen) and chlorophyll-a data in the wet season (Northwest Monsoon) and dry season (Southeast Monsoon) of 2003, respectively. The observation results show that the hydro-oceanographic characteristics of Klabat Bay in the inner part and the outer part of the bay were dominantly influenced by the terrestrial and oceanic environment, respectively. High precipitation during the wet season decreased salinity, DO and transparency and increased total suspended solid (TSS), turbidity, DIN and chlorophyll-a within the bay. The reverse occurred during the dry season, except DIP.


Author(s):  
Dessie Tibebe ◽  
Feleke Zewge Beshah ◽  
Brook Lemma ◽  
Yezbie Kassa ◽  
Ashok N. Bhaskarwar

Lake Ziway is shallow freshwater located in Northern part of Ethiopian Rift Valley. Expansions of the flower industry, fisheries, intensive agricultural activities, fast population growth lead to deterioration of water quality and depletion of aquatic biota. The objectives of the present study are to evaluate the spatial and temporal variations in the external nutrient load and determine the trophic status of Lake Ziway in 2014 and 2015. The nutrients and Chlorophyll-a were measured according to the standard procedures outlined in APHA, 1999. From the result Ketar and Meki Rivers catchment showed the major sources of external nutrient loads to the lake ecosystem. The mean external soluble reactive phosphorus (SRP), total phosphorus (TP), total inorganic nitrogen (TIN) and total nitrogen (TN) loads to Lake Ziway were 230, 2772, 4925 and 24016 kg day-1, respectively. A general trend which was expected that the nutrient loads would be much higher in rainy season than in dry season. The mean concentrations of trophic state variables for TN, TP and Chla were 6700, 212 and 42 mg L-1, respectively. The mean values of TSI-TP, TSI-Chl-a, TSI-TN and TSI-SD were 79, 66, 81 and 83, respectively and the overall evaluation of Carlson Trophic State Index (CTSI) of Lake Ziway was 77. Therefore, the lake is under eutrophic condition. The mean values of TN: TP ratio was 48 which were very high. The trophic state index determined with chlorophyll-a showed lower value than those determined with all trophic state indices values of TN, TP, and SD which indicated that non-algal turbidity affected light attenuation for algal growth. This suggested that phosphorus was the limiting nutrient in Lake Ziway. Due to its importance as being the lake is an intensive agricultural site, management solutions must be urgently developed in order to avoid the destruction of the lake.


2019 ◽  
Vol 2 (2) ◽  
pp. 171
Author(s):  
Sapto Andriyono

Abstract The purpose of research is to measure of physic-chemist aquatic parameter on Porong Estuary. Survey method used to collection of data. The average of chlorophyll-a index are 0-9.5 µg/l (3-68 µg/l rise tide and 1-30 µg/l low tide). Hight concentration of TSS on rise tide is 232-700 mg/l and low tide is 124-424 mg/l. Plankton analysis find out 73.3% diatom, 20% dinoflagelatta and 6.67% cyaniphyceae.


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