Judul: Studi tentang Perikanan Payang Teri dan Kemungkinan Pengembangannya di Kabupaten Rembang, Jawa Tengah
Abstrak: Alat tangkap payang teri dioperasikan guna menangkap teri, terutama jenis teri nasi (Stolephorus spp.). Di Kabupaten Rembang telah terjadi penurunan hasil tangkapan payang teri dalam beberapa tahun terakhir. Pengetahuan mengenai perikanan payang teri dan sumberdaya teri diperlukan guna memberikan alternatif pemecahan masalah. Teri muncul di permukaan pada waktu subuh dan senja hari di area dekat pantai dan merupakan ikan fototaksis positif yang menyukai cahaya sehingga memungkinkan untuk ditangkap pada malam hari (Gunarso et al., 1993). Berdasarkan teori tersebut maka pada tahap awal dicobakan untuk melakukan operasi penangkapan pada malam hari dengan menggunakan alat bantu penangkapan berupa lampu petromak sebagai atraktor ikan. Ikan teri yang bersifat fototaksis positif diduga akan berkumpul di sekitar cahaya lampu petromak.
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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: Karakteristik Carboxymethyl Chitosan Dengan Variasi Konsentrasi NaOH
Abstrak: Carboxymethyl chitosan is chitosan derivative product obtained from chemical modification. CMCh were made by alkalization process and carboxymethylation process. Factors that affect CMCh characteristics were excess sodium hydroxide in alkalization process, ratio between chitosan and monochloroacetic acid, and carboxymethylation temperature. The objectives of this research were to study the NaOH effect to CMCh characteristics, to learn process of making CMCh, to set the proper concentration of NaOH, and to analyze CMCh characteristics. CMCh yields were 110.72%-114.22%. CMCh pH value were 3.74-4.31. The optimum NaOH concentration to obtain the best CHCh was 10 M. Percentage of CMCh moisture content was 10.70%-11.42%. Ash content and nitrogen content of CMCh were 0.49%-0.50% and 4.52%-4.81%. CMCh viscousity was 8.25 cps. Percentage of CMCh solubility was 61.61%-91.50%. The different functional groups from chitosan which observed in CMCh were C=O group, CH group from alkene functional group, C−O group, and C−O−C group.
Keyword: solubility., functional group, CMCh characteristics, chitosan, carboxymethyl chitosan