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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Jurnal Penelitian Pendidikan IPA (JPPIPA) Nekton Journal of Coastal and Deep Sea Balobe: Jurnal Pengabdian Masyarakat
Kalay, Degen E.
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Physics Social Sciences Other

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PENGENALAN JENIS PANTAI DAN DINAMIKANYA SEBAGAI UPAYA PELESTARIAN LINGKUNGAN PANTAI BAGI SISWA SMA NEGERI 22 KAIRATU Kalay, Degen E.; Ratuluhain, Eva Susan; Tuahatu, Juliana W.
Balobe: Jurnal Pengabdian Masyarakat Vol 3 No 2 (2024): Balobe: Jurnal Pengabdian Masyarakat
Publisher : Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/balobe.3.2.83-90

Abstract

Beaches have various shapes as a response from the land to various forces received, such as geological processes, openness to the open sea, frequency of anthropogenic activities both around the coastal area and on the upper land and the configuration and layout of the island. The aim of this community service is to introduce the types of beaches and their dynamics to students at Sekolah Menengah Atas (SMA) Negeri 22 Kairatu and to instill a caring attitude towards caring for and protecting the marine and coastal environment. The mechanism for the stage activities is the delivery of material by the PkM Implementation Team from the Department of Marine Science, Faculty of Fisheries and Marine Sciences, Pattimura University and discussion. The results of the activity show that students understand well the material provided including the definition of beaches, functions and benefits of beaches, types of beaches and their dynamics as well as beach protection measures. This can be seen from the response of students who participated actively and enthusiastically by asking various questions during the activity. Keywords: Beach, Beach Dynamics, Beach Types, Waves, Abrasion
PELATIHAN PEMBUATAN PETA DASAR DESA POKA MENGGUNAKAN SOFTWARE ARCGIS Ratuluhain, Eva S.; Noya, Yunita A.; Kalay, Degen E.; Rijoly, Fredrik; Rumlus, Andrego J.
Balobe: Jurnal Pengabdian Masyarakat Vol 4 No 1 (2025): Balobe: Jurnal Pengabdian Masyarakat
Publisher : Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/balobe.4.1.27-32

Abstract

Base maps are one of the important elements in presenting detailed geospatial information about the physical conditions of an area, including complementary features such as roads, rivers, contours, administrative boundaries and land use, which are very much needed in the fields of spatial planning, spatial development, infrastructure development, disaster mitigation, to natural resource management. The purpose of this training is for participants to understand the basic concepts of mapping, master geospatial data collection and processing techniques, and be able to produce accurate and informative base maps. This training was held on Saturday, May 3, 2023 at the Nutrihub Kate-Kate Building, Ambon City, involving 12 participants consisting of young men and women from Poka Village. The training took place using a combination of methods, namely Theory, Discussion, and Direct Practice of making base maps using the ArcGIS application. The results of the training showed that the participants could understand the basics of map making and were able to make base maps using the ArcGIS application.
Preliminary modeling of tsunami potential in the Tanimbar Islands Ratuluhain, Eva Susan; Noya, Yunita Angnetjie; Kalay, Degen E.; Hukubun, Ronald Darlly
Nekton Vol 5 No 1 (2025): Nekton
Publisher : Politeknik Negeri Sambas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47767/nekton.v5i1.944

Abstract

The Tanimbar Islands are an area of high tectonic activity and are part of the outer arc island chain formed by subduction in the Banda zone. The presence of the Sorong Fault and Tanimbar Fault around the Tanimbar Islands also affects the level of vulnerability to earthquakes and tsunami hazards. The purpose of this study was to predict the tsunami potential and affected area of the Tanimbar Islands. The method of analyzing the height data and predicting the affected area used COMCOT v1.7 software. Model simulations were performed on the domain layer by using linear equations. Earthquake and fault parameter data were obtained from the USGS website using historical earthquakes dated January 10, 2023. Bathymetry data were obtained from the GEBO website at a resolution of 15-arcsecond (464 m). The model simulation results show that the initial wave height value marked by the red contour is 0.22 m and the lowest low tide value marked by the blue contour is -0.4 m. Based on these results, the tsunami potential in the Tanimbar Islands is not dangerous, as the potentially affected areas in the study area are Selu Island, Woluaru Island, Wotap Island, and Molu Island, as well as the small islands in the western part. The simulation results demonstrate the importance of research related to tsunami hazards that may occur in the future so that appropriate mitigation can be planned for the existence of small islands around the Tanimbar Islands.
Asosisasi Inter-Spesies Lamun di Perairan Pulau Maginti Sulawesi Tenggara Pasanea, Krisye; Lokollo, Frijona F.; Rahman, Rahman; Supusepa, Junita; Kalay, Degen E.; Hulopi, Mahriyana
Journal of Coastal and Deep Sea Vol 2 No 1 (2024): Journal of Coastal and Deep Sea
Publisher : Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jcds.v2i1.13562

Abstract

Asosiasi inter-spesies merupakan kemampuan suatu spesies dalam hal bergabung atau memiliki keeratan atau tidak diantara spesies-spesies tersebut. Penelitian terkait asosiasi inter-spesies pada lamun masih sedikit dilakukan. Oleh karena itu, penelitian ini perlu dilakukan untuk mengetahui jenis asosiasi antar spesies lamun di Perairan Pulau Maginti. Pengambilan data lamun dengan menggunakan metode transek garis. Pengamatan lamun menggunakan frame kuadrat dengan ukuran 50 cm x 50 cm. Pengukuran asosiasi dua jenis menggunakan tabel kontingensi 2x2. Asosiasi inter-spesies lamun di perairan Pulau Maginti bersifat positif dan negatif. Asosisasi positif terbesar yaitu pada pasangan spesies Halodule uninervis dan Halophila minor dengan nilai 0,264 serta Enhalus acoroides dan Thalassia hemprichii dengan nilai 0,410. Sedangkan asosiasi negatif terbesar yaitu pada pasangan spesies Enhalus acoroides dan Halophila minor dengan nilai -0,642 serta Enhalus acoroides dan Halodule uninervis dengan nilai -0,730.
The Seasonal Variations of the Thermocline in the Banda Sea and its Water Mass Characteristics Tubalawony, Simon; Hukubun, Ronald D.; Kalay, Degen E.
Jurnal Penelitian Pendidikan IPA Vol 10 No SpecialIssue (2024): Science Education, Ecotourism, Health Science
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10iSpecialIssue.9071

Abstract

This research was conducted to examine the seasonal variations in the Banda Sea's thermocline layer and its water mass characteristics. The research was conducted by analyzing Argo Float data. The data consists of six observation stations in West Season and Transitional Season II, and four stations in Transition Season I and East Season The thermocline layer thickness was identified based on the depth where the temperature decreased ≥ 0.05oC/m. The thermocline layer's distribution of depth and thickness and the distribution of temperature and salinity seasonally in the thermocline layer were analyzed with Microsoft Excel 2010. The analysis results showed that East Season and Transition Season II have a shallower upper boundary depth of the thermocline layer, a deeper lower boundary of the thermocline layer, and the thermocline layer is thicker when compared to the West Season and Transition Season I. The average temperature distribution is higher and the average salinity is lower in the West Season and Transition Season I. The mean rate of change in salinity and temperature in the thermocline layer seasonally ranged from 0.002-0.004 PSU/m and 0.06-0.08oC/m. The thermocline layer's stratification is stronger in the West Season and Transition Season I.
KONSENTRASI LOGAM BERAT Pb DAN Cd DALAM SEDIMEN PADA EKOSISTEM MANGROVE DI TELUK AMBON Tuahatu, Juliana W.; Tubalawony, Simon; Kalay, Degen E.
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 14 No. 3 (2022): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v14i3.37461

Abstract

Salah satu potensi ekosistem pesisir yang cukup luas ada di perairan Teluk Ambon Dalam adalah ekosistem mangrove. Ancaman bagi ekosistem mangrove yang ada di perairan Teluk Ambon adalah aktivitas yang berlangsung di sekitarnya (antropogenik). Adanya beberapa sungai yang bermuara di Teluk Ambon menjadi pendukung masuknya buangan/limbah dari darat. Logam berat Pb dan Cd telah terdeteksi pada air laut di perairan Teluk Ambon, sehingga dianggap penting untuk melakukan penelitian pada sedimen ekosistem mangrove. Tujuan dari penelitian ini adalah untuk mengetahui konsentrasi logam berat (Pb dan Cd) dalam sedimen pada ekosistem mangrove Teluk Ambon. Penentuan titik pengambilan sampel sedimen pada ekosistem mangrove dilakukan dengan menggunakan metode purposive sampling. Analisis sampel dilakukan dengan menggunakan metode Nitric Acid-Perchloric Acid Digestion. Hasil penelitian menunjukkan bahwa konsentrasi logam berat Plumbum (Pb) berkisar antara 18,25-35,98 mg/kg dan Cadmium (Cd) 1,57-2,70 mg/kg. Hasil analisis menunjukkan bahwa, Pb walaupun didapati dalam konsentrasi yang cukup tinggi namun belum melampaui ambang batas toksik, sementara Cd telah mendekati ambang batas toksik. Secara keseluruhan dapat disimpulkan bahwa, sedimen telah terkontaminasi logam berat Pb dan Cd namun belum berpengaruh pada ekosistem mangrove, dan merupakan indikasi bahwa terjadi filtrasi alami.
Co-Authors Frijona Fabiola Lokollo Hulopi, Mahriyana Junita Supusepa Krisye Pasanea Noya, Yunita A. Noya, Yunita Angnetjie Rahman Rahman Ratuluhain, Eva S. Ratuluhain, Eva Susan Rijoly, Fredrik Ronald Darlly Hukubun Rumlus, Andrego J. Simon Tubalawony Tuahatu, Juliana W.