Judul: Eel Fish Response (Anguilla sp.) Glass Eel Stadia against Different Light Colors
Abstrak: Respons ikan sidat (Anguilla sp.) stadia glass eel terhadap cahaya yang berbeda merupakan pengetahuan dasar untuk mengembangkan metode penangkapan ikan dan konservasi sumberdaya ikan. Tujuan penelitian ini adalah mendeskripsikan respons ikan sidat stadia glass eel terhadap cahaya yang berbeda. Pengamatan respons glass eel terhadap cahaya LED merah, biru, dan putih dibandingkan dengan tanpa cahaya sebagai kontrol dilakukan di laboratorium. Glass eel yang digunakan berukuran 4.0-6.1 cm sebanyak ±700 ekor yang ditangkap dari muara Sungai Cimandiri Pelabuhanratu. Pengamatan dilakukan selama 31 hari dimulai dari 5 hari setelah penangkapan glass eel. Respons glass eel terhadap cahaya dianalisis secara deskriptif dengan uji Mann Whitney dan Kruskal-Wallis. Pengamatan menunjukkan bahwa glass eel lebih banyak merespons pada zona gelap dengan nilai diatas 80% bila dibandingkan dengan zona yang diberi cahaya lampu LED merah, biru, dan putih. Persentase jumlah ikan pada lampu LED merah sebesar 23±0.22% lebih tinggi dengan jumlah ikan pada lampu LED biru sebesar 10±0.21% dan lampu LED putih 8±0.15% (p<0.05, Kruskal-Wallis). Perbedaan respons terhadap cahaya dapat digunakan untuk aplikasi penangkapan glass eel khususnya penggunaan lampu untuk alat bantu dan konservasi ikan sidat untuk membuat zona penangkapan dan jalur ruaya sidat., The response of eel fish (Anguilla sp.) glass eel stadia to different light is a basic knowledge to develop methods of fishing and conservation of fish resources. The purpose of this study is to describe the response of eel stadia glass eel fish to different light. Observations of glass eel response to red, blue, and white LED light compared to without light as controls were carried out in the laboratory. Glass eel used measuring 4.0-6.1 cm as much as ±700 heads were caught from the estuary of Cimandiri River of Pelabuhanratu. Observations were made for 31 days starting from 5 days after the capture of the glass eel. The glass eel's response to light was descriptively analyzed with the Mann-Whitney and Kruskal-Wallis tests. Observations showed that glass eels responded more to dark zones with values above 80% when compared to zones given red, blue, and white LED light. The percentage of fish in red LED lights was 23±0.22% higher with the number of fish on blue LED lights by 10±0.21% and white LED lights 8±0.15% (p<0.05, Kruskal-Wallis). The difference in response to light can be used for glass eel catching applications, especially the use of lamps for eel fish aids and eel conservation to create fishing zones and eels.
Keyword: Anguilla sp., eel behavior, glass eel, LED light, response to light

Judul: Aplikasi Pakan Buatan dan Dampaknya Terhadap Kondisi Biometrik dan Biologis Benih Ikan Sidat (Anguilla sp.)
Abstrak: Upaya yang dapat dilakukan untuk meminimalisir eksploitasi berlebih pada benih ikan sidat (glass eel) yaitu melalui efisiensi penggunaan benih glass eel pada kegiatan budidaya. Efisiensi penggunaan benih (glass eel) dapat diwujudkan melalui pemenuhan nutrien glass eel pada tahap pendederan agar dihasilkan Survival Rate (SR), Specific Growth Rate (SGR) serta efisiensi pakan yang tinggi. Penelitian ini bertujuan untuk mengevaluasi pengaruh pakan buatan terhadap keragaan biometrik dan biologis glass eel. Pelaksanaan penelitian dilakukan dari bulan Februari hingga April 2023. Glass eel sebanyak 1200 ekor dibagi ke dalam 4 perlakuan berdasarkan jenis pakan (cacing sutera, IPB, Feng Li, dan STP). Hasil penelitian menunjukkan bahwa nilai faktor kondisi berkisar 0,09-0,15, panjang usus relatif (PUr) berkisar 20,35-23,01%, bobot usus relatif (BUr) berkisar 20,27-32,11%, bobot jantung relatif (BJR) berkisar 4,82-6,96%, dan bobot hati relatif (BHr) berkisar 24,51-30,36%. Pakan alami memberikan hasil yang lebih baik dibanding pakan buatan dan pakan buatan khusus glass eel IPB lebih baik dibanding pakan buatan lain yang diuji cobakan., Efforts can be made to minimize the overexploitation of glass eels through the efficient use of glass eel seeds in aquaculture activities. The efficient use of glass eel seeds can be realized by fulfilling glass eel nutrients at the seedling stage to produce a high Survival Rate (SR), Specific Growth Rate (SGR), and feed efficiency. This study aims to evaluate the effect of artificial feed on the biometric and biological performance of glass eel fry. The research was conducted from February to April 2023. The 1200 glass eels were divided into four treatments based on the type of feed (silkworm, IPB, Feng Li, and STP). The results showed that condition factor values ranged from 0.09-0.15, relative intestinal length (PUr) ranged from 20.35-23.01%, relative intestinal weight (BUr) ranged from 20.27-32.11%, relative heart weight (BJR) ranged from 4.82-6.96%, and relative liver weight (BHr) ranged from 24.51-30.36%. The natural feed gave better results than the artificial feed, and the IPB glass eel artificial feed was better than the tested artificial feed.
Keyword: eel, glass eel, growth, silkworm

Judul: Penyusunan Overlap Graph menggunakan Suffix Tree pada DNA Sequence
Abstrak: The DNA sequence assembly is very important in genome analysis. This step aims to reconstruct contigous DNA fragment (contigs) from short fragment by concatenating fragments based on the overlap region among them. This method employs overlap graph for solving the problems. In this graph, nodes represent fragments and edges represent overlap. This research developed a software for constructing overlap graph using suffix tree. The evaluation was conducted by measuring the number of nodes, number of edges, and the execution time in many values of minimum overlap. The minimum overlap is defined as the minimum length of substring which is considered as the overlap region between two fragments. The evaluation results showed that the number of nodes, the number of edges, and the execution time were increased with the decreasing of the minimum overlap value.
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