Pengembangan perikanan tangkap berbasis komoditas unggulan di Kabupaten Halmahera Utara
This research is to examine the excellent commodities of fishery production, and the policies in capture fishing production in order to increase the income of fishermen. To determine the excellent commodities, the following analyses were made: (1) production continuity, average production, prices, processing and marketing, (2) Location Quotient (LQ) analysis and (3) SWOT Analysis. The results showed that of 38 species of fish that were analyzed, 31 species were of a continuous type and 7 species of non-continuous type. The average fish production is below the average production of all types of fish except for skipjack of 11,131.472 tons and flyingfish of 4405.296 tons per year. The price of beronang, kerapu, lencam, kakap and kurisi, are higher than the average price. The fish products marketed in the local market/overseas are for example kerapu, cakalang and tuna. Fish products are always marketed in fresh form. Only julungjulung fish is marketed after it is processed. Three kinds of fish are also exported, they are kerapu, cakalang and tuna. The results of LQ calculation show that there are 12 species of fish with value of LQ>1, namely: kuweh fish, kerapu, kerongkerong, teri, tembang, julung-julung, tongkol, lemadang, cakalang, mackerel tuna and cucut. Based on the scoring analysis of commodities in terms of production continuity, production, pricing, processing, and marketing associated with the value of LQ, six kinds of fishes as excellent commodities in North Halmahera Regency are cakalang, kerapu, anchovies, julung-julung, tuna, and tongkol. Flyingfish has the value of LQ <1, so it can not be recommended as an excellent fish species. Based on the results of the SWOT analysis, there are six government policies of North Halmahera Regency related to the development of capture fisheries, increasing fishing fleet is a top priority followed by the development in the processing of captured fish. Both policies are closely related to labor absorption and economic improvement.
APLIKASI METODE LOCATION QUOTIENT (LQ) DALAM PENENTUAN KOMODITAS UNGGULAN NASIONAL
Determine of agriculture superior commodities are main step to go in the direction of efficient agricultural development. There are more methods of superi or commodities identification; one is Location Quotient (LQ) approach. This paper aims to examine the implementation of LQ approach uses wide of agriculture harvesting area/cattle population series data for five years period (1997-2001) from Indonesian Statistics as main source. Data procesing conducted whith spreadsheet from Excel on Microsoft Windows XP. The results conclude that LQ method still obtained as one of relevant method for mayor agricultural commodities identification. It is suggestion for using for using LQ with supporting accuracy long series data present.
Effect of stress conditions on collapse deformation behavior of a rockfill material
A set of saturated and dry-saturated large-scale triaxial tests were conducted in order to explore the effects of stress conditions on the saturation-induced collapse deformation behavior of a rockfill material. Specimens were tested in different confining pressures and for dry-saturated tests the specimens were submerged in various shear stress levels. The results indicate that in all of the dry-saturated tests a sudden reduction in the volume of the specimens was observed during the submerging process. The ratio of the minimum axial strength of a submerged specimen (at the end of the saturation process) to the shear strength of the specimen before saturation is defined as the coefficient of stress recovery, Csr. Results of the dry-saturated tests showed that this ratio increases as the confining pressure increases and decreases by increasing the shear stress level. According to the results of dry-saturated tests the values of internal friction angle reduction caused by saturation (Δϕc), the ratio of the elasticity modulus of the material after saturation to its elasticity modulus in dry condition, i.e., Ewet/Edry, and also the saturation induced sudden volumetric strain (εvc) decrease as the confining pressure increases. However the shear stress level does not have any meaningful effect on the variation of Dfc, Ewet/Edry and (εvc).