Clams are aquatic biota that do not have a spine, belonging to the phylum Molluscs class Bivalvia. This study aims to determine the density, morphomteric differences of S. woodiana clams based on depth. The sampling technique used Purposive sampling method, with 1x1 meter plot and repetition 3 times. Data collection was carried out in July 2022 until completion. The results showed that the highest density of S. woodiana clams was found at a depth of 0-50 cm with an average density of 29.3 individuals/meter. Small size clams were dominantly found at a depth of 0-50 cm with a percentage reaching 97.92%, 54.46% of medium size clams were found at a depth of 50-100 cm, while 83.33% of large size clams were found at a depth of 100-150 cm. Anova test results showed significant differences with a 95% confidence interval. At a depth of 100-150 cm, the weight value of S. woodiana clams was 24.87 ± 3.36 grams, shell length 43.73 ± 1.21 cm, shell width 38.73 ± 1.76 cm, and umbo height 22.83 ± 0.76 cm. The results of this study can be concluded that the shallower the waters, the higher the density of shells, but the large size of the shells, the smaller the density.

Potensi tumbuhan nipah di Indonesia sangat besar. Nipah merupakan tumbuhan mangrove yang telah dimanfaatkan secara tadisional sejak dulu baik untuk kebutuhan pangan maupun non pangan. Bagian daun dan buah nipah banyak ditemukan kandungan metabolit primer dan sekunder yang bermanfaat bagi tubuh manusia. Tujuan artikel review ini adalah mengumpulkan literatur dengan fokus kandungan metabolit primer dan sekunder di daun dan buah nipah, untuk memberikan pengatahuan potensi pengembangan produk berdasarkan kandungan metabolit yang ada pada daun dan buah nipah. Daun nipah kaya akan protein dan buah nipah kaya akan karbohidrat dan protein. Beberapa mineral trace elemen juga sangat tinggi kandungannya dalam buah nipah diantaranya yaitu natrium, magnesium dan kalium. Buah dan daun nipah mengandung beberapa metabolit sekunder seperti golongan alkaloid, flavonoid, steroid, triterpenoid, fenol, tanin dan saponin. Ekstrak daun dan buah nipah memiliki aktivitas farmakologis seperti antiinflamasi, antikanker dan antihiperglikemik. Manfaat dari metabolit primer dan sekunder yang terdapat dalam daun dan buah nipah dapat dikembangkan menjadi produk pangan fungsional dan sediaan farmasetika.

Shark liver by-product has potential to be reprocessed into valuable products. The aim of this study was to utilize byproduct of shark in West Aceh to become fish oil. The oil was extracted using an oven with different temperatures (40, 50, and 60°C) for 8 hours. The results of proximate analysis showed that the protein content was 15.71 ± 0.13%, fat was 14.70 ± 1.66%, moisture was 58.11 ± 0.57%, ash was 1.19 ± 0.006, and carbohydrate was 10.30 ± 2.12%. The yield of liver oil reached 90% and contained omega-3 fatty acids including EPA and DHA. The heavy metal residue of shark liver oil was still below the threshold set by BSN, with an exception for Cd with 0.892 ppm. Saturated fatty acid (SFA) was 34.75% with palmitic acid as the dominant. Mono unsaturated fatty acid (MUFA) content was 12.86% with oleic acid was the dominant. Poly unsaturated fatty acid (PUFA) content was 17.29% with DHA as the main component. The highest yield of shark liver oil was obtained from extraction at 60°C (49.4%). The heavy metal residue of the oil was still below the threshold, except for Cu. The 50°C extraction temperature was considered as the best treatment resulting fish oil with 41.67% SFA, 14.37% MUFA, and 21.82% PUFA. Keywords: extraction, fatty acid, Shark liver by-product has potential to be reprocessed into valuable products. The aim of this study was to utilize byproduct of shark in West Aceh to become fish oil. The oil was extracted using an oven with different temperatures (40, 50, and 60°C) for 8 hours. The results of proximate analysis showed that the protein content was 15.71 ± 0.13%, fat was 14.70 ± 1.66%, moisture was 58.11 ± 0.57%, ash was 1.19 ± 0.006, and carbohydrate was 10.30 ± 2.12%. The yield of liver oil reached 90% and contained omega-3 fatty acids including EPA and DHA. The heavy metal residue of shark liver oil was still below the threshold set by BSN, with an exception for Cd with 0.892 ppm. Saturated fatty acid (SFA) was 34.75% with palmitic acid as the dominant. Mono unsaturated fatty acid (MUFA) content was 12.86% with oleic acid was the dominant. Poly unsaturated fatty acid (PUFA) content was 17.29% with DHA as the main component. The highest yield of shark liver oil was obtained from extraction at 60°C (49.4%). The heavy metal residue of the oil was still below the threshold, except for Cu. The 50°C extraction temperature was considered as the best treatment resulting fish oil with 41.67% SFA, 14.37% MUFA, and 21.82% PUFA.

Masyarakat merupakan pelaku konservasi utama yang bersentuhan secara langsung dengan wilayah pesisir. Penelitian ini dilakukan bertujuan untuk menghitung persentase tutupan terumbu karang berbasis masyarakat. Partisipasi masyarakat dibentuk guna membangun komunikasi dan kesadaran terhadap lingkungan. Penelitian dilakukan di enam wilayah perairan pada enam kecamatan meliputi Tapak Tuan, Samadua, Meukek, Labuhan Haji Timur, Bakongan dan Bakongan Timur. Penelitian dilakukan dengan menggunakan metode manta tow yang merupakan metode survey terumbu karang berbasis masyarakat. Hasil penelitian menunjukkan persentase tutupan karang keras yang paling tinggi ditemukan pada wilayah perairan Meukek dan Bakongan Timur. Sementara tutupan karang keras yang paling rendah ditemukan pada wilayah perairanBakongan. Keterlibatan masyarakat dalam upaya perlindungan memberikan dampak yang positif terhadap kesehatan terumbu karang. Adanya panglima laot menguatkan bentuk partisipasi masyarakat terhadap pengelolaan wilayah perairan di Aceh Selatan.

Pesatnya pertumbuhan industri di wilayah pesisir Aceh Barat diduga menjadi sumber pencemaran logam berat di perairan dan terakumulasi pada biota laut, salah satunya yaitu kerang lokan (Geloina erosa). Penelitian ini bertujuan untuk menganalisis kandungan logam berat Hg, Cd, Pb, Cu, As, dan Zn pada kerang lokan mentah dan rebus, serta menentukan batas toleransi konsumsi kerang lokan yang mengandung logam berat. Pengambilan sampel kerang lokan dilakukan di 3 stasiun, yaitu perairan Peunaga Rayeuk, Ujong Baroh, dan Kuala Bubon. Sampel dikelompokkan menjadi dua perlakuan, yaitu P1 (mentah) dan P2 (rebus). Analisis kandungan logam berat menggunakan Atomic Absorbtion Spectrophotometry (AAS). Hasil analisis kandungan logam Hg pada stasiun 2 yaitu P1 13,2754 mg/kg dan P2 sebesar 12,5491 mg/kg, pada stasiun 3 yaitu P1 1,2418 mg/kg dan P2 0,1956 mg/kg. Kandungan logam Cd hanya terdeteksi pada stasiun 2 yaitu P1 0,0058 mg/kg. Kandungan logam Cu pada stasiun 1 yaitu P1 sebesar 0,0686 mg/kg dan P2 0,0541 mg/kg, pada stasiun 2 yaitu P1 0,1381 mg/kg dan P2 sebesar 0,0999 mg/kg, dan pada stasiun 3 yaitu P1 sebesar 0,1062 mg/kg dan P2 sebesar 0.022 mg/kg. Kandungan logam Zn pada stasiun 1 yaitu P1 3,4883 mg/kg dan P2 s 3,3229 mg/kg, pada stasiun 2 yaitu P1 sebesar 2,7643 dan P2 sebesar 2,6225 mg/kg, dan pada stasiun 3 yaitu P1 4,2511 mg/kg dan P2 2,8687 mg/kg. Batas maksimum berat daging kerang lokan yang boleh dikonsumsi untuk orang dewasa (50 kg bb) yaitu 0,131 kg daging per minggu.