Judul: Analysis Catching Activity of Eel Elver on the Water of Cimandiri Estuary, Palabuhanratu Bay, Jawa Barat
Abstrak: Eels (Anguilla sp.) are potential export commodities. However, there is a decrease in the number of eel elvers. Eel farming is still difficult to do if it starts from the stage of eggs and larvae. So, fishermen catch eel elver at the river or sea. Then, the elvers have been raised in fishpond. The current research attempts to describe the catching activities of eel elvers, to describe the condition of eel elver resources, and to estimate the relationship between sea surface temperature (SST), chlorophyll-a and fishing ground of eels at Cimandiri’s estuaries, Palabuhanratu Bay. The Research conducted on January to April 2012. Data were collected by interviews and also downloaded SST and chlorofil-a concentration images on http://oceancolor.gsfc.nasa.gov and http://www.nodc.noaa.gov/. The results show that, fishermen use simple fishing gear and operating technique for catching eel elvers. The fishing gear have been used by fisherman are waring and anco. Fishermen sell eel elver’s catch to the aquaculture’s company. Moreover, there was a sharp decrease in the volume in the eel elver catches. It is because the eel elver resources condition is getting worse compared to the early period of fishing activities. In addition, the SST averages was still in the range value of adaptation for eel elvers. It is because there is a small number of temperature variety in tropical water (including Indonesian water). In addition, the average concentration of chlorophyll-a included high categories from 1998 to 2011. So that, the high concentration of chlorophyll-a is a good location for the growth of phytoplankton and other aquatic animals.
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Judul: Opsi Pengelolaan Sumber Daya Ikan Sidat Berdasarkan Distribusi dan Pertumbuhan di Sungai-sungai yang Bermuara ke Teluk Palabuhanratu, Jawa Barat
Abstrak: Freshwater eels are usually considered catadromous because they spawn in marine waters and the juveniles grow in freshwater habitats following a long migration from their offshore spawning area. The objective of this research is to study the distribution, the pattern of growth, and present in system information. Field sampling was conducted in 7 rivers (Cimandiri, Cipalabuhan, Citepus, Cisukawayana, Cimaja, Citiis, and Cibareno) from July to October 2013. Glass eel and elver were kept in absolute alcohol, futhermore it used for calculating length weight relationship and condition factor. The making of eel migration flash animation refers to the system development cycle of The Waterfall Model. The result of the research showed that eels is present in each river with the highest catches in Cimaja River. In terms of growth pattern, both A. bicolor bicolor and A. marmorata juvenile have positive allometric, while glass eel have negative allometric. Eel condition factor values between one to another station is not much different. Cimaja River potentially as eel resources conservation area. Additionaly, eel migration information system has been implemented in flash animation.
Keyword: migration, length-weight relationship, eel, distribution, condition factor

Judul: Grup dan Homomorfisma Grup pada Rubik Revenge
Abstrak: Rubik cube is a kind of puzzle game. A player must arrange rubik sides, which have been disordered, back to the position where every side has the same colour. This paper does not focus on the settlement solution, but instead on proving the existence of a group homomorphism between rubik movement group and S96 symmetric permutation group in rubik revenge. Firstly, it has been proved that rubik movement set is a group. Then, it also has been proved that the M set, which contains numeric labels of 1 until 96 in cubinos sides, is S96 symmetric permutation group.
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