Aristi Dian Purnama Fitri

Business Profile of Boat Lift Net and Stationary Lift Net Fishing Gear in Morodemak Waters Central Java

Lift net is one of the fishing gears that is used widely in the Morodemak coastal fishing port (PPP) for catching pelagic fish. The yield of fish captured by thesefishing gear has high economic value, such as fish belt(Trichiurussp), squids (Loligosp) and anchovies (Stelophorussp).The aims of this research were to determinethe technical aspects of boat lift net and stationary lift net fishing gearin Morodemak Waters Demak Regency; to find out the financial aspect of those fishing gears and to analyze the financial feasibility by counting PP, NPV, IRR, and B/C ratio criteria.This research used case study method with descriptive analysis. The sampling method was purposive sampling with 22 fishermen as respondents. The result of the research showedthat the average of boat lift net acceptance was Rp 388,580,000. The financial analysis of fisheries boatlift net with the result of NPV Rp 836,149,272, PP 2.44 years, IRR value 54%, and B/C ratio 1.73. The average of stationarylift net acceptance was Rp 27,750,000. The financial analysis lift net with the result of NPV Rp 37,937,601;PP 1.96years, IRR value 86%, and B/C ratio 1.32. This research hada positive NPV value, B/C ratio >1, and IRR > discount rate (12 %). This study concluded that the fishery business of boat lift net and stationary lift net in Morodemak coastal fishing port (PPP) was worth running.

Different Eye Physiology of Mud Crab (Scylla Serrata) in Different Life Stage Found in Semarang Territorial Waters

Mud crabs use their eyes function to guide their movement activities i.e., to avoid predator and to support their environment orientation. In tropical environment such as Indonesia, mud crabs live in mangrove area as their habitat. To support their visual acuity, mud crabs depend on the number of con sell as photoreceptor and carapace width. The purpose of this study is to prove whether mud crab eye physiology is different between life stages (juvenile, sub-adult and adult stadia) especially in Semarang territorial water. Histology methods were used to determine the density of cone cell on three life stages. The highest number of eye cell in juvenile, sub-adult and adult are 25, 15 and 13 units, respectively and found in frontal inner side. The visual acuity in juvenile is 6.005×10-3-7.46×10-3; sub-adult is 9.17×10-3-15.4×10-3; and the adult is 16.03×10-3-19.6×10-3. The results indicate that the increase of visual acuity follows the growth of carapace width in mud crabs.

Resources Management Strategy For Mud Crabs (Scylla spp.) In Pemalang Regency

The aim of this research is to develop resources management strategies of mud crab (Scylla spp.) in Pemalang Regency. The method used is descriptive survey in a case study. This research used primary data and secondary data. Primary data were collected through field observations and in-depth interviews with key stakeholders. Secondary data were collected from related publications and documents issued by the competent institutions. SWOT Analysis was used to inventory the strengths, weaknesses, opportunities and threats. TOWS matrix was used to develop an alternative of resources management strategies. SWOT analysis was obtained by 6 alternative strategies that can be applied for optimization of fisheries development in Pemalang Regency. The strategies is the control of mud crab fishing gear, restricted size allowable in mud crab, control of mud crab fishing season, catch monitoring of mud crab, needs a management institutions which ensure the implementation of the regulation, and implementation for mud crab aquaculture. Each alternative strategy can be synergized to optimize the resources development in Pemalang Regency.