Judul: Whale Shark (Rhincodon typus) Occurrence and  Interaction with Human in Saleh Bay, West Nusa Tenggara
Abstrak: Hiu paus merupakan salah satu jenis ikan terbesar di dunia yang dilindungi secara hukum. Kegiatan wisata hiu paus yang dilakukan di Teluk Saleh menimbulkan dampak negatif bagi kesejahteraan hiu paus. Penelitian ini bertujuan untuk menganalisis kemunculan hiu paus (Rhincodon typus) di Teluk Saleh serta mengevaluasi prosedur operasional baku yang sudah beroperasi di Teluk Saleh Kabupaten Sumbawa, Nusa Tenggara Barat. Penelitian ini dilakukan dengan melakukan observasi langsung dan wawancara. Data yang didapatkan berupa ID hiu paus, tingkah laku, kegiatan wisatawan, dan persepsi wisatawan dan nelayan. Data yang dikumpulkan menunjukkan bahwa kemunculan hiu paus di Teluk Saleh oleh keberadaan bagan dan ketersediaan pakan. Kemunculan hiu paus di Teluk Saleh terjadi saat pagi dan malam hari, namun didominasi pada pagi hari. Banyaknya pelanggaran yang masih dilakukan oleh wisatawan dan operator wisata memerlukan pemantauan lebih lanjut mengenai menilai prosedur operasional baku di Teluk Saleh, Nusa Tenggara Barat., Whale sharks is one of the largest fish species in the world and legally protected. Whale shark tourism activities carried out in Saleh Bay have a negative impact on the welfare of whale sharks. This study aims to analyze the occurrence of whale sharks (Rhincodon typus) in Saleh Bay and evaluate the standard operating procedures that have been operating in Saleh Bay, Sumbawa Regency, West Nusa Tenggara. This research was conducted by conducting direct observations and interviews. Data obtained in the form of whale shark ID, behavior, tourist activities, and perceptions of tourists and fishermen. The data collected showed that the occurrence of whale sharks in Saleh Bay is driven by the presence of nets and the availability of food. The occurrence of whale sharks in Saleh Bay occurs in the morning and at night, but predominantly in the morning. The number of violations still committed by tourists and tour operators requires further monitoring of assessing standard operating procedures in Saleh Bay, West Nusa Tenggara.
Keyword: tingkah laku, Hiu Paus, ID Hiu Paus, Wisata Hiu Paus

Judul: Analisis Daya Dukung Wisata Hiu Paus (Rhincodon typus Smith,  1828) di Teluk Saleh, Nusa Tenggara Barat
Abstrak: Hiu paus (Rhincodon typus) merupakan ikan terbesar di dunia. Status konservasi hiu paus berdasarkan IUCN termasuk kedalam kategori terancam punah (endangered). Pemanfaatan wisata secara langsung dapat memberikan ancaman terhadap kelestarian hiu paus sehingga perlu menelaah kondisi pengelolaan pada sumber daya hiu paus yang sudah beroperasi, menganalisis kapasitas daya dukung wisata dan menentukan rekomendasi pengelolaan wisata hiu paus. Data primer diperoleh dengan cara observasi lapangan dan wawancara. Hasil penelitian menunjukan bahwa pengelolaan wisata hiu paus di Teluk Saleh belum optimal. Indeks kesesuaian wisata hiu paus memiliki kategori sangat sesuai (SS) dan sesuai (S) untuk kegiatan wisata. Nilai daya dukung dengan pendekatan titik kemunculan sebesar 6400 orangatau tahun. Rekomendasi pengelolaan yang tepat yaitu pengkajian kemunculan hiu paus secara spasial-temporal, promosi wisata hiu paus pada media sosial dan cetak, pembentukan tim monitoring dan evaluasi, pelatihan kepada pelaku wisata, dan membangun kerjasama kepada pemerintah, masyarakat dan lembaga lainnya., The whale shark (Rhincodon typus) is the largest fish in the world and is classified as endangered by the IUCN. Tourism activities can directly impact the sustainability of whale sharks. Therefore, it is important to assess the management of existing whale shark tourism, analyze the tourism capacity, and make recommendations for better management. Primary data was collected through field observations and interviews. The results indicate that the management of whale shark tourism in Saleh Bay is suboptimal. The suitability index for whale shark tourism activities was very suitable (SS) and suitable (S). Using the point approach, the estimated carrying capacity is 6400 people per year. Recommendations for improved management include assessing the spatial-temporal occurrence of whale sharks, promoting whale shark tourism through social and print media, establishing monitoring and evaluation teams, providing training for tourism operators, and fostering collaboration with government, communities, and other stakeholders.
Keyword: daya dukung, pengelolaan, Wisata Hiu Paus, Teluk Saleh

Judul: Prenilasi Senyawa β-Diketon sebagai Prekursor 3-Prenilflavon
Abstrak: One group of flavonoids that has not been commonly synthesized is 3- prenylflavone. The main objective of this experiment was to synthesize precursor of 3-prenylflavone. Firstly, β-diketone was synthesized via 4 steps from phenol as starting compound with total yield of 24%. Prenylation of β-diketone with prenyl bromide and K2CO3 base produced 4 fractions which were separated by using preparative thin layer chromatography (PTLC) with n-hexane:EtOAc (8:2) as the eluent. Fraction with Rf = 0.80 was further separated by using preparative PTLC with n-hexane:EtOAc (99:1) as the eluent. Two fractions were obtained with Rf = 0.38 and 0.42. The first fraction has been characterized as diprenylated β-diketone with 49% yield. Application of protecting group on the phenolic OH group in β- diketone are needed to obtain monoprenylated β-diketone which can be further cyclized into 3-prenylflavone
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