Prof. Dr. Marc Kochzius Ms. Anouk-Isabel Neuhaus

93 Sekretariat Perizinan Penelitian Asing Kementerian Riset dan Teknologi DIREKTORI PENELITIAN ASING DI INDONESIA 2013 in Spermonde, is needed. Speciic genetic markers, representing small fragments of the organisms genome have to be ampliied and compared to ind diferences and similarities in the genetic composition to estimate relationships among the dataset and possible subsets on diferent hierarchical levels e.g. within and among populations and among groups of populations. With speciic computer programs probabilities of groupings, values of diferentiation between sites and genetic diversities are calculated and form a picture of connectivity and isolation between populations and geographic areas. The methods used for the lab work include diferent protocols of DNA extraction dependent on the source organism of the tissue sample, ampliication of suitable genetic markers through the polymerase chain reaction PCR, puriication of PCR products, sequencing and fragment length analysis.The computer programs usually used are among others Arlequin, FSTAT, DNASP, and STRUCTURE.

55.1 Prof. Dr. Marc Kochzius

Warga Negara : Jerman Jabatan : Professor Institusi : Vrije Universiteit Brussel No. SIP : 031SIPFRPSMII2013

55.2 Ms. Anouk-Isabel Neuhaus

Warga Negara : Jerman Jabatan : Master Student Institusi : Vrije Universiteit Brussel No. SIP : 032SIPFRPSMII2013 94 Sekretariat Perizinan Penelitian Asing Kementerian Riset dan Teknologi DIREKTORI PENELITIAN ASING DI INDONESIA 2013 56. Morphology and function of the burrow of the most abundant species of crab’s burrow in the Segara Anakan Lagoon, Java Indonesia Tujuan Penelitian : Menentukan morfologi, karakteristik, dan sifat liang kepiting di hutan bakau Segara Anakan Bidang Penelitian : Biologi Ekologi Daerah Penelitian : Jateng Segara Anakan -Cilacap Lama Penellitian : 6 enam bulan mulai 4 November 2013 Mitra Kerja : Program Studi Ilmu Lingkungan, Program Pascasarjana Universitas Jenderal Soedirman Dr.rer.nat. Moh. Husein Sastranegara Abstrak Mangroves are important ecosystem in tropical countries because they provide refugee for larva and juveniles economic importance marine species. Mangroves forests act as a barrier between the landward and seaward providing protection to the land against strong coastal conditions as well as ilter for the costal ecosystems from the land inluence. Besides their functions, mangroves communities have a very complex fauna that vary among regions and contribute to increase the importance of the ecosystem functions of the mangrove forest. Thus Indonesia mangrove forest in Segara Anakan Lagoon has one of the most diverse crab areas Geist et al, 2012 and the understanding of their role in the mangrove forest is fundamental to determinate it inluence in the system as ecosystem engineers. Our study will be focus in burrowing crab species that are consider to create oxic condition in the sediment of the mangrove that promote decomposition of organic matter and enhance absorption of nutrients by mangrove roots tree, which contribute to the recycling of nutrients in the system. In addition, burrow structure promotes the aeration and irrigation of the sediment improving the transport of nutrients and carbon from the mangrove to stream and to the ocean Stieglitz et al, 2000. Through the description of their burrow, we will provide important information about crab burrow engineer function in the mangrove ecosystem of the Segara Anakan Lagoon and determinate if these functions are changing under anthropogenic inluences. 95 Sekretariat Perizinan Penelitian Asing Kementerian Riset dan Teknologi DIREKTORI PENELITIAN ASING DI INDONESIA 2013

56.1 Ms. Tania Edith Romero Gonzalez