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All Journal Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology Jurnal Technopreneur (JTech)
Fione Yukita Yalindua
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Energy Environmental Science Immunology & microbiology Mechanical Engineering Other

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OKSIGEN TERLARUT DAN APPARENT OXYGEN UTILIZATION DI PERAIRAN WAIGEO BARAT, RAJA AMPAT Simon I Patty; Putri Sapira Ibrahim; Fione Yukita Yalindua
Jurnal Technopreneur (JTech) Vol 7 No 2 (2019): JURNAL TECHNOPRENEUR (November)
Publisher : UPPM Politeknik Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (172.047 KB) | DOI: 10.30869/jtech.v7i2.379

Abstract

Pengamatan kadar oksigen terlarut telah dilaksanakan di perairan Waigeo Barat, Raja Ampat, Papua Barat. Penelitian ini bertujuan untuk mengetahui kondisi oksigen terlarut dan Apparent Oxygen Utilization (AOU). Hasil analisa menunjukkan bahwa kadar oksigen terlarut di lapisan permukaan, 5 meter dan dekat dasar masing-masing berkisar antara 5.90-8.48 mg/l; 6.06-8.04 mg/l dan 6.12-7.98 mg/l. Berdasarkan nilai suhu dan salinitas yang diperoleh dari penelitian ini telah dihitung daya larut, derajat kejenuhan oksigen dan nilai AOU. Di lapisan permukaan nilai AOU berkisar antara (-0.01)-2.77 mg/l, di kedalaman 5 meter dan dekat dasar nilai AOU positif masing-masing berkisar antara 0.10-2.06 mg/l dan (0.16)-1.99 mg/l. Konsentrasi oksigen terlarut di perairan Waigeo Barat, Raja Ampat, belum menunjukkan dampak negatif terhadap lingkungan perairan dan masih sesuai dengan baku mutu air laut untuk biota laut. Kata kunci: Oksigen terlarut, AOU, Salinitas, Waigeo Barat, Raja Ampat
PEMANTAUAN KONDISI LAMUN DI PERAIRAN PANTAI BULO RERER, SULAWESI UTARA Frismarwati Wahyuni Lawadjo; Putri Sapira Ibrahim; Fione Yukita Yalindua; Miftahul Khair Kadim
Jurnal Technopreneur (JTech) Vol 8 No 2 (2020): JURNAL TECHNOPRENEUR (November)
Publisher : UPPM Politeknik Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jtech.v8i2.608

Abstract

Ekosistem lamun merupakan perairan produktif yang memiliki fungsi untuk menstabilkan dasar perairan, dan dijadikan sebagai tempat perlindungan hewan. Keberadaan ekosistem Lamun di Indonesia tidak banyak diketahui dan dipelajari. Salah satu perairan yang memiliki padang lamun yang belum banyak diketahui status kondisi padang lamunnya yaitu Pantai Bulo. Pantai Bulo dijadikan sebagai wisata bahari karena memiliki keindahan yang menarik, juga sebagai tempat untuk menangkap ikan warga setempat. Aktivitas ini dapat mengganggu keberadaan lamun di daerah tersebut. Penelitian ini dilakukan untuk mengetahui kondisi padang lamun di Perairan Pantai Bulo Rerer, Kabupaten Minahasa, Provinsi Sulawesi Utara, dengan melakukan pengamatan substrat, komposisi jenis lamun dan persen penutupan lamun. Penelitian dilakukan selama bulan Juni sampai Agustus 2019. Hasil yang didapatkan yaitu ditemukan enam jenis lamun di perairan pantai Bulo Rerer yaitu Enhalus acoroides, Thalassia hemprichii, Cymodoceae rotundata, Cymodocea serrulata, Syringodium isoetifolitum, dan Halodule pinifolia, dengan kondisi padang lamun termasuk kategori kerusakan sedang. Diharapkan ke depannya dapat dilakukan pengawasan terhadap masyarakat serta pengenalan betapa pentingnya ekosistem lamun, agar tidak melakukan kerusakan di kawasan lamun dan berpartisipasi dalam rehabilitasi lamun.
Abundance and Characteristics of Microplastics Found in The Gastrointestinal Tract of Commercial Marine Fish from Bitung, North Sulawesi, Indonesia Aunurohim Aunurohim; Eka Krisna Risawati; Eka Nur Rahmawati; Nova Maulidina Ashuri; Fione Yukita Yalindua; Putri Saphira Ibrahim; Nita Citrasari; Miftakhul Sefti Raufanda; Romanus Edy Prabowo
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 18, No 1 (2023): May 2023
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.719

Abstract

Microplastic (MP) pollution is an emerging environmental problem that threatens food security, food safety, and human health since it has been reported to be found in commercial fish consumed by humans. Bitung, North Sulawesi, is one of the biggest contributors to capture fishery production in Indonesia. However, there is no data on microplastic pollution in commercial marine fish from Bitung. Therefore, this research aimed to investigate the presence and identify the visual characteristics (color, shape, size) and the polymer type of microplastics found in the gastrointestinal tract of commercial marine fish from Bitung, North Sulawesi. The gastrointestinal tract was extracted using KOH 10%, and the microplastic was observed under a stereo microscope. A total of 753 microplastic particles were found in the gastrointestinal tract of 74 individuals (prevalence 99%), and there was a statistically significant difference in the abundance of microplastics found in the gastrointestinal tract of pelagic and demersal fish. The average number of microplastic particles found in the gastrointestinal tract of pelagic fish (12,24 ± 2,43) is higher than in demersal fish (7,38 ± 3,48). The dominant color and shape of microplastic found in the gastrointestinal tract of the fish were black and fiber, respectively. At the same time, the dominant microplastic size found in the gastrointestinal tract of demersal fish was bigger (1,001-5,000 µm, 39,4%) compared to pelagic fish (150-500 µm, 47%). The Fourier Transform Spectroscopy (FTIR) analysis result shows that microplastics of the same polymer type can be found in the gastrointestinal tract of both pelagic and demersal fish.
Co-Authors Aunurohim Aunurohim Eka Krisna Risawati Eka Nur Rahmawati Frismarwati Wahyuni Lawadjo Miftahul Khair Kadim Miftakhul Sefti Raufanda Nita Citrasari Nova Maulidina Ashuri Putri Saphira Ibrahim Putri Sapira Ibrahim Putri Sapira Ibrahim Romanus Edy Prabowo Simon I Patty