Sebaran Muatan Padatan Tersuspensi Dan Kelimpahan Fitoplankton Di Muara Sungai Porong Kabupaten Sidoarjo

Wisha, Ulung Jantama; Yusuf, Muh; Maslukah, Lilik

doi:10.21107/jk.v9i2.1298

Cited by 14 publications

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“…salinity and the presence of the organism autotroph (phytoplankton). According Wisha et al (2014) the value of dissolved oxygen is strongly influenced by water temperature, salinity and the presence of phytoplankton. Temperature relationship with pH is still the same (Figure 13.…”

Section: Resultsmentioning

confidence: 99%

Physical and Chemical Conditions of Bayur Bay Waters On the East and West Season

2017

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Section: Resultsmentioning

confidence: 99%

Physical and Chemical Conditions of Bayur Bay Waters On the East and West Season

2017

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“…The primary data consist of bathymetry measurement results conducted by Research Institute for Coastal Resources and vulnerability in 2016, the coastline digitation of Google Earth Image year 2016, the current and tide data, the data of water quality measurements in situ, and TSS data analysis results in the laboratory, while the secondary data used is tide forecasting data and Topographic map of Indonesia 2005. The sampling stations consist of 18 stations (Figure 1) scattered along the coastal area, with reference to the purposive sampling method, that is a method to determinate the sampling sites in the area which is considered to represent the study area (Sugiyono, 2012in Wisha et al, 2016b.…”

Section: Methodsmentioning

confidence: 99%

Total Suspended Solid (TSS) Distributed by Tidal Currents during Low to High Tide Phase in the Waters of Sayung, Demak: Its Relations to Water Quality Parameters

Wisha¹,

Ondara

2017

J. Mar. Aquat. Sci.

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Sayung waters is a region highly vulnerable to catastrophic erosion along the coast, which is directly followed by an increase suspended sediments and particles from the bottom of the waters that was stirred by oceanography factors. The purpose of this study was to determine the concentration and distribution of the latest TSS condition and its effect on water quality parameters in the waters of Sayung. The sampling method is using purposive sampling, with the stations spread out along the coastal area of Sayung, the main data consist of current, tide, bathymetry, coastline and water quality, and the secondary data consist of RBI map and tide forecasting, those data is analyzed numerically and statistically. TSS value ranged between 23,1-199,6 mg.L-1, the distribution of TSS is simulated in the condition of ebb to tide with current speed ranged between 0-0.41 ms-1, that distribution also influenced by physical water factors such as salinity, temperature, and density and has impacts to enhancing the turbidity and indirectly decrease the photosynthesis activity and inhibit the oxygen cycle in the Sayung waters.

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“…Dominasi arah arus bergerak ke arah timur dan timur laut (Tabel 4) hal tersebut sebanding dengan arah transpot dan pengendapan sedimen yang terjadi di Perairan Brebes, dominasi jenis sedimen dasar cenderung lanau sehingga ukuran sedimen sangat kecil dan mudah untuk teraduk dan terendapkan kembali, mengakibatkan peningkatan konsentrasi sedimen tersuspensi dan kekeruhan di perairan, dan secara langsung akan menghambat proses autotrofik yang ada di perairan (Wisha et al, 2016).…”

Section: Gambar 1 Peta Lokasi Penelitianunclassified

Distribusi Sedimen Dasar Sebagai Identifikasi Erosi Pantai Di Kecamatan Brebes Menggunakan Analisis Granulometri

Gemilang

Wisha

Rahmawan

2017

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The dynamics of erosion and accretion in the coastal area of Brebes Subdistrict have many impacts on mangrove destruction and coastal region. The erosion and accretion are influenced by oceanography parameters that can affect the distribution of coastal sediments. The aims of this research were to determine the characteristics of the phenomenon of erosion and accretion in coastal Brebes Subdistrict and shape appropriate mitigation to reduce the erosion. This research is done with the bed sediment sampling using grab sampler for 26 sampling point. Current and tide measurement are conducted wih ADCP deployment for 15 days' measurement. Sediment characteristic analysis done with granulometri and statistic analysis. The average of sediment sorting is 1.21, skewness is 0.088 and the kurtosis is 3.76. Generally, bed surface sediment distribution pattern is dominated by clay to sand, the grand size distribution of sediments are sand, silt, sandy silt and silty sand. Longshore current speed ranged between 0-0.12 m.s -1 at the spring tide condition and ranged between 0-0.08 m.s -1 at the neap tide condition, the domination of current direction towards to the East and Northeast. The mitigation is very needed to rearrange the mangrove areas, build the coastal protection and recover the main river line which is the sourceof the sediment materials, so that can be provide the supply of sediment deposition in the coastal area. ABSTRAK Dinamika kawasan pesisir Kecamatan Brebes berupa bencana abrasi dan akresi yang terjadi memiliki dampak besar terhadap kerusakan kawasan mangrove dan pesisir. Fenomena erosi dan akresi yang terjadi dipengaruhi oleh parameter oseanografi yang dapat mempengaruhi sebaran sedimen di pesisir. Penelitian ini bertujuan untuk mengetahui karakteristik distribusi sedimen dasar perairan sebagai upaya identifikasi bencana erosi yang terjadi di pesisir Kecamatan Brebes.Penelitian dilakukan dengan pengambilan sampel sedimen dasar perairan menggunakan metode grab sampler terhadap 26 titik pengambilan. Pengukuran kecepetan arus di lokasi penelitian dilakukan dengan pemasangan ADCP selama 15 hari. Analisis karakteristik sedimen dilakukan dengan metode analisis granulometri dan statistic sedimen. Nilai rata-rata sortasi 1.21, skewness 0.088 dan kurtosis 3.76. Secara umum, pola sebaran sedimen permukaan dasar laut Kec.Brebes didominasi oleh sedimen berukuran lempung-pasir. Jenis sedimen berdasarkan ukuran butirnya yaitu pasir, pasir lanauan, lanau pasiran dan lanau. Kecepatan arus sepanjang pantai hasil model pada kondisi purnama berkisar 0-0,12 m.s -1 dan pada saat perbani berkisar antara 0-0,08 m.s -1 , dengan dominasi arah arus menuju ke Timur dan Timur laut. Perlu dilakukan penataan ulang terhadap kawasan mangrove dan bangunan pelindung pantai serta melakukan pencodetan terhadap sungaisungai utama yang merupakan sumber pembawa material sedimen sehingga dapat memberikan suplay endapan sedimen di bagian pesisir.

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Sebaran Muatan Padatan Tersuspensi Dan Kelimpahan Fitoplankton Di Muara Sungai Porong Kabupaten Sidoarjo

Cited by 14 publications

References 0 publications

Physical and Chemical Conditions of Bayur Bay Waters On the East and West Season

Physical and Chemical Conditions of Bayur Bay Waters On the East and West Season

Total Suspended Solid (TSS) Distributed by Tidal Currents during Low to High Tide Phase in the Waters of Sayung, Demak: Its Relations to Water Quality Parameters

Distribusi Sedimen Dasar Sebagai Identifikasi Erosi Pantai Di Kecamatan Brebes Menggunakan Analisis Granulometri

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