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All Journal Jurnal Kelautan Tropis Samakia: Jurnal Ilmu Perikanan
Syahrial Syahrial
Fakultas Pertanian, Universitas Malikussaleh, Aceh Utara, Indonesia
Biochemistry, Genetics & Molecular Biology Immunology & microbiology Other

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Pengaruh Tingkat Kerapatan dan Kedewasaan Hutan Mangrove dalam Memerangkap Sedimen di Muara Sungai Langsa Kota Langsa Erlangga Erlangga; Helmi Gusnita; Syahrial Syahrial; Cut Meurah Nur Akla; imamshadiqin imamshadiqin; Riri Ezraneti; Rian Firdaus
Jurnal Kelautan Tropis Vol 25, No 3 (2022): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v25i3.14009

Abstract

In November 2021, a study on the effect of mangrove density and maturity level on sediment trapping in the Langsa River estuary, Langsa City, was conducted with the objective of determining the density, maturity, and rate of sediment deposition around the mangrove forest, as well as the relationship between mangrove density and maturity level and sediment deposition rate. Mangrove vegetation was collected using a 40 m line transect parallel to the river flow and a 10 x 10 m plot, while sediment samples were collected using a sediment trap. The study's findings indicated that mangrove density varied between 675.00 and 1541.67 ind/ha, that mangrove maturity was uneven, with trunk diameters ranging between 4.14 and 9.83 cm and basal areas ranging between 30.45 and 72.93 m2/ha. Meanwhile, sediment deposition rates ranged between 26.94 and 277.73 mg/cm2/day, with a strong correlation between density and maturity of mangrove vegetation (98% and 99%, respectively).   Penelitian terhadap pengaruh tingkat kerapatan dan kedewasaan hutan mangrove dalam memerangkap sedimen di muara Sungai Langsa Kota Langsa dilakukan pada bulan November 2021 dengan tujuan untuk mengetahui tingkat kerapatan, kedewasaan dan laju pengendapan sedimen di sekitar hutan mangrovenya serta untuk mengetahui keterkaitan antara tingkat kerapatan dan kedewasaan hutan mangrove terhadap laju pengendapan sedimennya. Vegetasi mangrove dikumpulkan dengan menarik transek garis sepanjang 40 m yang sejajar dengan aliran sungai dan dibuat plot berukuran 10 x 10 m, sedangkan sampel sedimennya diambil menggunakan sediment trap. Hasil penelitian memperlihatkan bahwa kerapatan mangrovenya berkisar antara 675.00 – 1541.67 ind/ha, kedewasaan mangrovenya tidak merata dengan diameter batangnya berkisar antara 4.14 – 9.83 cm dan basal areanya berkisar antara 30.45 – 72.93 m2/ha. Sementara untuk laju pengendapan sedimennya berkisar antara 26.94 – 277.73 mg/cm2/hari, dimana keterkaitan antara kerapatan dan kedewasaan vegetasi mangrovenya memiliki hubungan yang kuat (masing-masing 98% dan 99%).
Senyawa Bioaktif dan Antioksidan Buah Mangrove Sonneratia alba J.E. Smith dari Desa Lhok Bubon Kecamatan Samatoga Kabupaten Aceh Barat Hayatun Nufus; Mohamad Gazali; Alaudin Alaudin; Asri Mursawal; Sri Wahyuni; Cut M.N. ‘Akla; Syahrial Syahrial; Neneng Marlian
Jurnal Kelautan Tropis Vol 26, No 1 (2023): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v26i1.16211

Abstract

The mangrove species Sonneratia alba is one of the plants that has good bioactive compounds and very easy to find. However, the content of bioactive compounds and nutrients from a plant is strongly influenced by internal and external factors. The study was conducted with the aim to know the proximate content, yield and antioxidant activity of S. alba fruit from Lhok Bubon Village, Samatoga District, West Aceh Regency. The extraction method used methanol, ethyl acetate and n-hexane as solvent with antioxidant test using DPPH solution (2,2-Diphenil-2-picryl hydrazil). The results of the study showed the proximate content consisted of water 30.71%, ash 5.06%, fat 8.59%, protein 3.48% and carbohydrate 52.16%. Meanwhile, the yield showed ethyl acetate solvent had the highest yield (69.11 ± 13.27%), then followed by n-hexane (68.38 ± 13.21%) and methanol (64.44 ± 14.78%). Furthermore, for the antioxidant activity of S. alba fruit from Lhok Bubon Village, Samatoga District, West Aceh Regency, overall it was classified as very strong IC50 < 50 ppm).   Spesies mangrove Sonneratia alba merupakan salah satu tanaman yang memiliki senyawa bioaktif yang baik dan sangat mudah ditemukan. Namun kandungan senyawa bioaktif dan nutrisi dari suatu tanaman sangat dipengaruhi oleh faktor internal dan eksternalnya. Penelitian dilakukan dengan tujuan untuk mengetahui kandungan proksimat, rendemen dan aktivitas antioksidan buah S. alba dari Desa Lhok Bubon Kecamatan Samatoga Kabupaten Aceh Barat. Metode ekstraksinya menggunakan pelarut methanol, etil asetat dan n-heksana dengan uji antioksidannya menggunakan larutan DPPH (2,2-Diphenil-2-picryl hydrazil). Hasil penelitian mendapatkan bahwa kandungan proksimatnya terdiri dari kadar air 30.71%, kadar abu 5.06%, kadar lemak 8.59%, kadar protein 3.48% dan kadar karbohidrat 52.16%. Sementara untuk rendemen menunjukkan bahwa pelarut etil asetat memiliki rendemen tertingginya (69.11 ± 13.27%), kemudian diikuti oleh n-heksana (68.38 ± 13.21%) dan methanol (64.44 ± 14.78%). Selanjutnya untuk aktivitas antioksidan buah S. alba dari Desa Lhok Bubon Kecamatan Samatoga Kabupaten Aceh Barat secara keseluruhannya tergolong sangat kuat (IC50 < 50 ppm).
Identifikasi Sampah Anorganik di Pantai Cermin Desa Pantai Cermin Kanan Kecamatan Pantai Cermin Kabupaten Serdang Bedagai Yudho Andika; Sohibil Yamin; Erlangga Erlangga; Syahrial Syahrial; Imamshadiqin
Samakia : Jurnal Ilmu Perikanan Vol 14 No 1 (2023): Samakia: Jurnal Ilmu Perikanan
Publisher : Faculty of Science and Technology University Ibrahimy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35316/jsapi.v14i1.1941

Abstract

Garbage is a major problem experienced on a global scale, both from household and industrial waste. This research was conducted at Pantai Cermin, Pantai Cermin Kanan Village, Pantai Cermin District, Serdang Bedagai Regency. It was carried out on 6-12 November 2021 with the aim of knowing the type, characteristics, weight, total density, and rate of increase in weight of inorganic waste. The method used is purposive sampling by installing a plot of 10 m x 10 m with a distance of each transect of 5 m. Data collection was carried out by observation with macro size and recorded directly. The results of the research show that the waste obtained is plastic, glass, rubber, clothing, metal / metal and the most dominant is plastic waste. The density of the number of pieces and the largest weight density in plastic waste are 0.31 items/m2 and 2.93 gr/m2. The highest rate of weight gain was on Sundays (r>0).
Co-Authors Alaudin Alaudin Asri Mursawal Cut M.N. ‘Akla Cut Meurah Nur Akla Erlangga Erlangga Hayatun Nufus Helmi Gusnita Imamshadiqin imamshadiqin imamshadiqin Mohamad Gazali Neneng Marlian Rian Firdaus Riri Ezraneti Sohibil Yamin Sri Wahyuni Yudho Andika