Estimasi Distribusi Klorofil-A di Perairan Selat Madura Menggunakan Data Citra Satelit Modis dan Pengukuran In Situ Pada Musim Timur

Semedi, Bambang Pujo; Safitri, Nur Maulida

doi:10.21776/ub.rjls.2015.002.01.6

Cited by 8 publications

(6 citation statements)

References 4 publications

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“…On August 15, 2022, 29 ships will arrive. Fish catch results in the high eastern season due to the presence of upwelling, so the waters become fertile and contain many nutrients that become the food of small and large pelagic fish (Semedi & Safitri, 2015). Based on Figure 7, fishing activity was highest in June 2022 (603 ships) and lowest in January 2022.…”

Section: Analysis Of the Number Of Shipsmentioning

confidence: 99%

Unloading of Fish Activities at Sendang Biru, Coastal Fisheries Port (Ppp) Pondokdadap, Malang Regency

Al Maky,

Isdianto,

Ariefandi

et al. 2023

JEEST

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The fishing port, which acts as a public agency, provides services and facilitates fishing activities for fishermen. One indicator that the service provided is already optimal is the minimum number of vessels in the process of dismantling fish in the port. The study aims to find out the fishing landing system and the number of ships that landed during the period September-August 2022. The method used is directly through field observations and collecting secondary data to supplement the data obtained. The system applied to each port is different. The port of Pondokdadap applies the queue method as well as the system of nahkoda, where the ship's documents must be submitted and the fisherman's number taken before landing. Boats that want to sell fish to the TPI must be equipped with a catch letter. In the period September-August 2022, the highest number of ships was found in June 2022, with 603. For the smallest number in January 2022, there were 22 ships. Based on the results obtained, it is known that the period of April-September has the highest number, while there is a decrease in the number in October-March. There was an increase in the number of vessels that carried out fishing, which was affected by the fishing season, with the high season in the Eastern season.

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Section: Analysis Of the Number Of Shipsmentioning

confidence: 99%

Unloading of Fish Activities at Sendang Biru, Coastal Fisheries Port (Ppp) Pondokdadap, Malang Regency

Al Maky,

Isdianto,

Ariefandi

et al. 2023

JEEST

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“…Nilai korelasi pearson sendiri menunjukkan hasil 0.406, hasil korelasi cukup untuk menunjukkan tipe korelasi yang berbanding lurus, Peristiwa korelasi ini tergolong langka dan jarang dijumpai, alasan mengapa peristiwa ini terjadi dapat disebabkan karena pada bulan agustus merupakan musim angin timur yang menyebabkan arus dari benua australia menuju ke benua asia. Arus yang berasal dari laut selatan jawa tersebut membawa air yang kaya dengan barium dan mineral lain dari lautan dalam hasil dari upwelling (Liu et al, 2017;Semedi et al, 2015). Peristiwa lain yang menyebabkan korelasi positif antara barium terlarut dan salinitas adalah adanya intrusi air laut ke dalam akuifer dangkal pada tanah (Colbert dan McManus, 2005).…”

Section: Korelasi Barium Terlarut Dengan Salinitasunclassified

Distribusi Barium Terlarut pada Estuari dan Laut Padelegan Kecamatan Pademawu, Kabupaten Pamekasan

Hidayatullah,

Pratiwi,

Kartika

et al. 2023

Bul. Oseano. Mar.

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Barium (Ba) merupakan salah satu elemen minor di perairan laut yang memiliki nilai ekonomis tinggi apabila dimanfaatkan sebagai produk garam turunan. Sumber utama Ba terlarut berasal dari sungai, dan estuari menjalankan peran penting sebagai pengontrol fluktuasi kadar Ba terlarut pada sungai sebelum masuk ke laut. Penelitian ini bertujuan untuk mengetahui kadar Ba terlarut, distribusi Ba terlarut dan korelasi Ba terlarut dengan salinitas. Kadar Ba terlarut diketahui dari hasil pengujian sampel air laut yang diambil di 9 titik mulai dari daerah estuari hingga laut lepas. Pengujian kadar Ba terlarut menggunakan metode Atomic Absorption Spectrophotometry sesuai SNI 06-6989.39-2005. Kadar Ba terlarut di Perairan Padelegan berkisar antara 0,009-0,003 mg/L. Hasil visualisasi distribusi kadar Ba terlarut tertinggi berada di estuari dan kadar terendahnya berada di stasiun laut lepas. Distribusi Ba terlarut dari estuari hingga laut lepas menunjukkan kadar yang menurun secara bertahap. Hasil korelasi antara kadar barium terlarut dengan salinitas berbanding lurus yang disebabkan oleh intrusi air laut. Barium (Ba) is a minor element in marine waters which has high economic value when used as a derivative salt product. The main source of dissolved Ba comes from rivers, and estuaries play an important role as controlling fluctuations in dissolved Ba levels in rivers before they enter the sea. This research aims to determine dissolved Ba levels, dissolved Ba distribution and the correlation of dissolved Ba with salinity. Dissolved Ba levels are known from the results of testing seawater samples taken at 9 points from the estuary area to the open sea. Dissolved Ba levels were tested using Atomic Absorption Spectrophotometry based on SNI SNI 06-6989.39-2005. Dissolved Ba levels in Padelegan Water range between 0,009-0,003 mg/L. Visualization results of the distribution of the highest dissolved Ba levels are in estuaries and the lowest levels are at open sea. The distribution of dissolved Ba from the estuary to the open sea shows gradually decreasing levels. Correlation results between dissolved barium levels and directly proportional salinity caused by seawater intrusion.

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“…Hasil penelitian ini tidak jauh berbeda dengan penelitian yang dilakukan [9] di sekitar perairan Aceh menggunakan citra satelit Aqua Modis perekaman bulan Juni hingga Oktober 2010 yang berkisar 0.08 mg/m 3 hingga 1.20 mg/m 3 . Namun, hasil penelitian ini tergolong rendah dibandingkan hasil penelitian [10] Hal ini didukung oleh [11] yang menyatakan bahwa sebaran klorofil-a dipengaruhi oleh kondisi oseanografis diantaranya kecerahan, suhu permukaan laut kecepatan arus dan oksigen terlarut. Selain itu, masukan nutrient ke masingmasing perairan dari aktivitas di daratan sekitarnya juga sangat mempengaruhi sebaran konsentrasi klorofil-a [12].…”

Section: Rata-rata Sebaran Klorofil-a Selama 7 Tahununclassified

Variability Analysis of Chlorophyll-a Distribution on the Coast of Southwest Aceh Using Aqua Modis Image

Suriani

Rahmi²,

Kusumawati

et al. 2022

ajoas

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Chlorophyll-a has an important role in determining the trophic status and estimation of the fertility level of water. The aim of this study was to analyze the variability of the concentration of chlorophyll-a on the coast of Southwest Aceh. This study uses remote sensing technology using Aqua MODIS imagery, the image used is an annual Level 3 Standard Mapped Image (SMI) chlorophyll-a image with a period of 7 years from 2015 to 2021 and has a spatial resolution of 4 km. The image is processed using software, namely SeaDAS and ArcMap. The results of this study showed that the distribution of the highest annual chlorophyll-a concentration was in 2019 at 0.29 – 2.27 mg/m3, and the lowest chlorophyll-a concentration was found in 2020 ranging from 0.29 – 1.02 mg/m3. The average concentration of chlorophyll-a in Southwest Aceh waters for 7 years (2015-2021) shows a low chlorophyll-a concentration ranging from 0.29 to 1.22 mg/m3 and belongs to oligotrophic and mesotrophic waters

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Estimasi Distribusi Klorofil-A di Perairan Selat Madura Menggunakan Data Citra Satelit Modis dan Pengukuran In Situ Pada Musim Timur

Cited by 8 publications

References 4 publications

Unloading of Fish Activities at Sendang Biru, Coastal Fisheries Port (Ppp) Pondokdadap, Malang Regency

Unloading of Fish Activities at Sendang Biru, Coastal Fisheries Port (Ppp) Pondokdadap, Malang Regency

Distribusi Barium Terlarut pada Estuari dan Laut Padelegan Kecamatan Pademawu, Kabupaten Pamekasan

Variability Analysis of Chlorophyll-a Distribution on the Coast of Southwest Aceh Using Aqua Modis Image

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