Ulfah Nurjanah
Departemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

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Analisis Kesesuaian Perairan untuk Budidaya Ikan Kerapu Macan (E. fuscoguttatus) di Sekitar Perairan P. Menjangan Besar dan Menjangan Kecil Karimunjawa Ulfah Nurjanah; Widianingsih Widianingsih; Muhammad Helmi; Ria Azizah Tri Nuraini
Buletin Oseanografi Marina Vol 13, No 2 (2024): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v13i2.54666

Abstract

Industri perikanan budidaya dengan sistem keramba jaring apung di era modern ini telah berkembang menjadi salah satu industri pangan yang memiliki pertumbuhan tercepat di dunia. Keterbatasan informasi mengenai lokasi yang berpotensi untuk kegiatan budidaya menjadi faktor yang mempengaruhi perkembangan industri ini. Perairan Pulau Menjangan Besar dan Menjangan Kecil memiliki potensi untuk pengembangan kegiatan budidaya perikanan. Ikan kerapu macan (E. fuscoguttatus) menjadi salah satu komoditas yang dapat dibudidayakan dengan teknologi keramba jaring apung. Penentuan lokasi yang sesuai untuk kegiatan budidaya ikan kerapu macan dengan keramba jaring apung sangat diperlukan untuk mendukung efektivitas budidaya. Beberapa parameter yang perlu dipertimbangkan dalam penentuan lokasi yaitu parameter suhu permukaan laut, salinitas, pH, oksigen terlarut, kedalaman perairan, kecerahan perairan, arus dan gelombang. Parameter kualitas perairan tersebut berperan penting dalam kehidupan organisme perairan. Penelitian ini dilakukan melalui survei pada 35 titik stasiun dengan metode purposive sampling. Pemodelan arus dan gelombang juga dilakukan untuk mengetahui kecepatan arus dan ketinggian gelombang pada lokasi penelitian. Pemodelan arus dan gelombang dilakukan untuk mewakili setiap musim. Analisis data dilakukan melalui modifikasi pada matriks kriteria kesesuaian. Hasil setiap parameter yang diperoleh kemudian diintegrasikan melalui Sistem Informasi Geografis dengan menggunakan ArcGIS 10.8. Berdasarkan hasil integrasi diperoleh luas area perairan yang tergolong sangat sesuai seluas untuk kegiatan budidaya ikan kerapu macan seluas 56.15 ha.  The aquaculture industry using floating net cage systems in the modern era has developed into one of the fastest-growing food industries in the world. Limited information regarding potential locations for cultivation activities is a factor influencing the development of this industry. The waters of Menjangan Besar and Menjangan Kecil Islands have the potential for developing fisheries cultivation activities. Tiger grouper (E. fuscoguttatus) is one of the commodities that can be cultivated using floating net cage technology. Determining a suitable location for tiger grouper cultivation activities using floating net cages is crucial to support the effectiveness of cultivation. Several parameters that need to be considered in determining the location are sea surface temperature, salinity, pH, dissolved oxygen, water depth, water brightness, currents, and waves. These water quality parameters play an important role in the life of aquatic organisms. This research was conducted through a survey at 35 stations using a purposive sampling method. Current and wave modeling was also carried out to determine the current speed and wave height at the research location. Current and wave modeling is carried out to represent each season. Data analysis was carried out through modifications to the conformity criteria matrix. The results of each parameter obtained were then integrated through the Geographic Information System using ArcGIS 10.8. Based on the integration results, it was obtained that the water area classified as very suitable for tiger grouper cultivation activities was 56.15 ha.
Multitemporal Analysis of Wonorejo Coastal Topography in Surabaya and its Effects on Sediment Distribution Using ArcGIS 10.3 Software Ulfah Nurjanah; Ety Parwati; Pingkan Mayestika; Retno Hartati
Jurnal Perikanan dan Kelautan Vol. 27 No. 2 (2022): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.124-128

Abstract

Sediment is a collection of particles that come from weathering both soil and rock, biological and an anthropogenic process. Sediment flows from upstream to downstream areas. Topographic conditions are one of teh factors in sedimen distribution. The topography in the Wonorejo area tends to be low because it is located in a coastal area. The purpose of this study is to determine the effects of topographic changes in Wonorejo on the distribution of sediments in the area. The method used in this study is descriptive method by collecting data including primary data and secondary data. The primary data used are Landsat 7 and Landsat 8 satellite imagery, while the secondary data used is in the form of Surabaya village administration map data, Surabaya DEM data and Indonesian SHP data. Data processing was performed using ArcGIS 10.3 software. The results indicated that the topographic conditions of the region did not have a significant influence on the distribution of sediments in the Wonorejo area. The distribution of sediment in those area was more influenced by hydro-oceanographic factors such as currents, tides and waves. Other factors that influence are anthropogenic factors such as development and land conversion.