Judul: Utilization Analysis of The Mackerel (Rastrelliger spp) Resources in Tanah Laut District South Kalimantan Province
Abstrak: Tanah Laut is a district in South Kalimantan Province which has potential mackerel (Rastrelliger spp) resources. The objectives of the research were (I) to estimate level utilization of in the mackerels at Tanah Laut District, (2) to determine the appropriate fishing technology for catching mackerels around in Tanah Laut District, (3) to develop a strategy for mackerel fisheries in Tanah Laut District. Research activities which had been done included fishing gear analysis, stock analysis, financial analysis, scoring method and SWOT analysis. The utilization level of mackerel resources had achieved 77%. The purse seine fishery is more technologically appropriate and beneficial than the encircling gillnet fishery. The development strategies of the mackerel fisheries are (1) optimum utilization of the mackerel resouces, (2) development of mackerel fisheries to be more efficient and effective, (3) improvement of fisheries infrastructures and facilities, (4) improvement of government role and public participation in monitoring, controlling and surveilance of the mackerel resources.
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Judul: Keterkaitan Sistem Sosial-Ekologi Sebagai Faktor Input Bagi Pengelolaan Perikanan Kembung (Rastrelliger spp.) di Pesisir Tanjung Satai, Kabupaten Kayong Utara, Kalimantan Barat
Abstrak: ABSTRACT Utilization of mackerel fishery resources is an effort to improve the fishermen's economy, in utilizing resources it is necessary to carry out management in favor of resource sustainability. The management of mackerel fishery resources in the TS coast within the framework of the socio-ecological system (SES) has not been well integrated. This study analyzes the components and connectivity of the socio-ecological system (SES) of the mackerel fish (Rastrelliger spp.) to formulate a management strategy in the TS Coastal waters. This research was conducted from June to July 2022 on the TS coast, Kayong Utara Regency, West Kalimantan. The social-ecological system (SES) approach was used in this study. Based on the results of the analysis, it shows that there is a strong relationship between the SES components. The resource user component (RA) has a strong relationship with mackerel fishery resources (RU), in the broader context of the resource system (RS), but tends to be weaker in the implementation of the resource management system (RG) in the TS coast. Management strategies can be carried out through good cooperation between (RA) and (RG) so as to create sustainable TS (RS) coastal waters and mackerel fishery resources (RU). Keywords: coast, mackerel fishery, resources, socio-ecological system, Tanjung Satai.
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Judul: Grup Abelian Berhingga dari Barisan Genomik DNA  (Deoxyribonucleic Acid)
Abstrak: Informasi genetik yang memprogram semua aktivitas sel terdapat dalam bentuk kode di dalam molekul DNA. Grup kodon dari basa nukleotida DNA {A, C, G, U} tidak dapat merepresentasikan daerah non kode dalam genom yang disebabkan oleh mutasi penghapusan serta penyisipan pada barisan genomik DNA. Dalam karya ilmiah ini grup kodon diperluas dengan menambahkan huruf O untuk menandakan mutasi penghapusan atau penyisipan pada kodon untuk semua triplet diperluas 1 2 3 X X X dengan i X Î{O, A, C, G, U} dari barisan genomik DNA. Grup kodon yang diperluas isomorfik dengan grup bilangan bulat modulo 125. Grup abelian berhingga dari barisan genomik DNA yang dibentuk dari himpunan seluruh pasangan terurut triplet ekson dan intron pada untai DNA isomorfik dengan grup jumlah langsung bilangan bulat modulo 64 dan 125. Kemudian grup abelian berhingga tersebut direpresentasikan sebagai grup jumlah langsung 2-grup dan 5-grup homosiklik. Bagian barisan genomik DNA tanpa penyisipan membangun blok gen yang direpresentasikan oleh 2-grup homosiklik, sedangkan bagian barisan genomik DNA yang dipengaruhi oleh penyisipan direpresentasikan oleh 5-grup homosiklik.
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