Judul: Effectiveness of Payang Fisheries at Larangan Coastal Fishing Port, Tegal.
Abstrak: Alat tangkap payang merupakan salah satu alat tangkap yang digunakan di PPP Larangan. Payang tergolong kedalam pukat kantong lingkar (seine net) dengan hasil tangkapan utama ikan teri (Stolephorus sp). Penangkapan payang di PPP Larangan dilakukan pada pagi dan malam, hal tersebut belum diketahuinya waktu yang efektif dalam operasi penangkapan. Tujuan penelitian ini adalah mendeskripsikan perikanan payang, mengetahui komposisi hasil tangkapan payang, menghitung nilai produktivitas payang pada penangkapan siang dan malam hari dan membandingkan tingkat efektivitas payang. Metode yang digunakan dalam penelitian ini adalah metode observasi dan survei dengan analisis deskriptif, analisis produktivitas menurut Kepmen KP No.61 tahun 2014 dan analisis dekriptif efektivitas. Hasil penelitian menunjukan bahwa, metode pengoperasian payang di PPP Larangan menggunakan sistem one day fishing. Hasil tangkapan utama yaitu ikan teri nasi, ikan teri, ikan golok-golok, cumi-cumi, ikan peperek dan ikan layur. Nilai produktivitas penangkapan pagi lebih tinggi dibandingkan dengan penangkapan malam. Penangkapan pagi lebih efektif dibandingkan dengan penangkapan malam hari berdasarkan nilai produktivitas hasil tangkapan., Payang is one of the fishing gears used in PPP Larangan. Payang belongs to the seine set category with anchovy (Stolephorus sp) as the main catching results. The fish catching operations using payang in PPP Larangan are usually carried out in the morning and evening. However, the most effective time in the fish catching operation using payang is still unknown. The purpose of this study is to describe payang roles in fishery, identify the composition of the fishery catch using payang, calculate the value of payang productivity during the day and night, and compare payang’s effectiveness level. The methods used in this study are observation and survey with descriptive and productivity analysis according to Ministry of Marine Affairs and Fisheries Republic of Indonesia decree year 2014 number 61 and descriptive analysis of effectiveness. The results showed that the operation method using payang in PPP Larangan mainly uses a one-day fishing system with the main catches, anchovies, peperek, squid, Dorab Wolf‑Herring, and Largehead hairtail. The productivity value of morning operation is higher than the night counterpart based on the productivity value of catches.
Keyword: efektivitas, hasil tangkapan, payang, produktivitas

Judul: Perfomance of the Mini Purse Seine in the Morning and Evening at the Coastal Fishing Port Larangan Tegal Distrcit
Abstrak: Alat tangkap purse seine merupakan alat tangkap dominan yang ada di PPP Larangan. Waktu operasi penangkapan yang digunakan oleh nelayan terdiri atas dua yaitu penangkapan pagi dan penangkapan malam. Diantara dua metode penangkapan ini belum diketahui metode mana yang lebih efektif dalam melakukan kegiatan penangkapan, yang mana berpengaruh terhadap keberlanjutan perikanan sehingga diperlukan penelitian ini. Tujuan penelitian ini adalah mendeskripsikan perikanan purse seine, menghitung nilai produktivitas hasil tangkapan purse seine pada penangkapan pagi dan malam serta membandingkan tingkat efektivtas purse seine pada penangkapan pagi dan malam. Metode yang digunakan dalam penelitian ini yaitu metode observasi dan survei dengan analisis deskriptif, analisis produktivitas menurut Kepmen KP No.61 tahun 2014 dan analisis dekriptif efektivitas. Hasil penelitian menunjukkan bahwa kedua metode penangkapan purse seine menggunakan sistem one day fishing. Jenis hasil tangkapan utamanya yaitu ikan teri jawa, ikan kembung, ikan tembang, ikan peperek, cumi-cumi dan udang. Nilai produktivitas hasil tangkapan pagi yang sudah memenuhi standar hanya faktor produksi GT kapal dan trip penangkapan, sedangkan nilai produktivitas hasil tangkapan malam belum ada faktor produksi yang memenuhi standar. Penangkapan pagi lebih efektif dibandingkan dengan penangkapan malam dilihat dari nilai produktivitasnya., Purse seines are dominant fishing gear in Coastal Fishing Port Larangan. There are two methods that fishers use during fishing catch activity, in the morning and night. Between these two fishing methods, it is unknown which is more effective in carrying out fishing catch activities, which affects the sustainability of the fisheries, so this research is needed. This research aims to describe types and amounts of fish caught in purse seine, to compare productivity level and effectivities of fishing catch activity in morning and night. Data collection techniques included observation and survey with descriptive, productivity analysis by Kepmen KP No.61 of 2014 and descriptive analysis for effectivity. Fishing gear used is purse seine with one day trip. Fish caught using purse seine as the fishing gear were anchovy, mackerel, tembang, peperek, squid and shrimp. The morning catch’s productivity that has meet the standard is only the production factors GT ship and fishing trips, while the productivity value of evening catch has no production factors that meet the standard. Fishing catch activity in the morning was more effective than fishing catch activity at night compared to productivity level.
Keyword: catch, effectiveness, productivity, purse seine

Judul: Construction of Strongly Optimal Binary Linear Code with Minimum Distance 9 and 11
Abstrak: A binary linear code of length n over q F is a subspace of n q F . A code has three parameters that attached to it, namely length, dimension, and minimum distance. A code with length n, dimension k and minimum distance d is often called [n, k, d ]-code. Usually, when two parameters are given, then we want to find a code that has the best value for the last parameter. Based on Gilbert- Varshamov bound, if a [n, k, d ]-code exists and can not be expanded, we call it a strongly optimal code. In this paper, we construct strongly optimal code with minimum distance 9 and 11. In constructing the code, we created a theorem and algorithm based on Gilbert-Varshamov bound before we implement the algorithm to MAPLE programming language. Because of computational limitations, the program can only construct up to k = 10 for d = 9 and k = 12 for d = 11.
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