Judul: Biologi Reproduksi Undur-undur laut Emerita emeritus Di Kecamatan Buluspesantren Kabupaten Kebumen, Jawa Tengah
Abstrak: Mole crab is well known as one of fisheries resources in Kebumen which has the potential to use. This research aimed to measure aspect of biology reproduction such as sex ratio, fecundity, classification and development egg, and alternative of management plan for fisheries. The research was conducted at sandy beach in Subdistric of Buluspesantren Distric of Kebumen, Central Java in the period of October 2012 until February 2013. The result of sex ratio is unbalanced with average of 98.73% for female and 1.17% for male. Total number of mole crab that taken during the research was 1243 individuals. The relationship of fecundity and lenght carapas was estimated F= 150.32CL – 3044.6 with number of coefficient (R2) is 42.53%. Fecundity of lenght carapas in stages also had a little number of coefficient. Result of egg diameter of mole crab show that the type of reproductive is total spawner. Size of egg diameter had a increased number. The alternative of management plan for mole crab resources in Kebumen is selectifity of catch
Keyword: 

Judul: Bioecological of Mud Crabs (Scyllaspp.) in mangrove ekosistem of Subang Regency, West Java
Abstrak: The aim of the research was to collect data and information concerning population structure, reproduction performance, reproduction potency, evaluation of eyestalk ablation and distribution of mud crabs based on the characteristics of their environment habitat. The research was carried out since January 2005 to August 2006. Observation on the morphology and anatomy used descriptive method. The ecological aspect was done in situ using line plot transect method. In the meantime, the aspect of biological reproduction was carried out through a controlled seed experiment in pond and laboratory with treatment of eyestalk ablation. Exploration of eyestalk tissue of mud crabs was performed with the method of histochemistry to assure the success of ablation. The result showed that not only the morphology of different mud crab species but also the morphology and anatomy of crabs with different sexes. The mud crabs from different research stations indicated differences in terms of the population rate. The width of the carapace and minimum and maximum weight of mud crabs caught were different from one species to another.
Keyword: pupulation structure, reproduction performance, reproduction potency, distribution of mud crabs, West Java

Judul: Pembuatan dan Karakterisasi Sensor Gas Amonia Berbasis Polianilin
Abstrak: Prinsip kerja sensor gas amonia (NH3) berbasis polianilin (PANI) yaitu lapisan tipis PANI dikenai gas amonia. Perubahan sifat listrik lapisan tipis PANI dimanfaatkan sebagai sensor pendeteksi gas. Variasi konsentrasi dopant HCl pada sintesis dengan cara kimia biasa berpengaruh pada sifat listrik polianilin. Berdasarkan data hasil percobaan, semakin besar konsentrasi gas amonia yang diberikan resistansi PANI semakin kecil. Semakin besar konsentrasi gas amonia yang diberikan maka konduktansi PANI semakin tinggi. Variasi dopant HCl berpengaruh terhadap kinerja sensor, yaitu mempengaruhi tegangan jatuh sensor setelah dikenai gas amonia. Konsentrasi dopant yang lebih tinggi menghasilkan tegangan jatuh yang perubahannya lebih besar dibandingkan dengan konsentrasi dopant yang lebih rendah.
Keyword: