Judul: Development system of catch fishing unit in Regency of South Lampung
Abstrak: Fisheries resources utilization in Residency of South Lampung as so far has faced on larger potency of fisheries capture while the management is not optimally done yet. This situation has indicated the low productivity of fishing units including the existing fleets as well as unsupported fishing gears facilities in traditional basis. In other hand, in general, the human resources are rare with low management capability. As consequence, technology transfer (adoption) to the lowest level fishermen is constrained. Fishermen slowly use existing technology and be more diversified in business activities. In addition, fishermen's access on capital loan is limited. This research conducted in marine region of South Lampung Residency. The variation of used fish catching unit, Schaefer production surplus analysis, in order to identity the status of fish resource such as potential, effort level, and maximum sustainable yield. Scoring analysis which will be used in this research are,conducting standarization of fish catching unit, considering method, in order to determine the superior fish catching unit, biological aspect, sustainable aspect, environtmental aspect, investment feasibility aspect, and analytical hierarchi procces method. Strategic development of fish catching unit was done in three options. First option based on the possibility development up to MSY gave fourteen fish catching unit can be added, those are payang 71 unit, fixed gill net 44 unit, encricling gill net 600 unit, hand line 21 unit, sero 336 unit, beach seine 716 unit, bagan perahu 162 unit, bagan apung 64 unit, drift gill net 74 unit, serok 27 unit, bubu 25 unit, trammel net 184 unit, jermal 50 unit, and mini trawl 72 unit. Second option based on the AHP method gave seven fish catching unit can be added, those are drift gill net 30 unit, bagan perahu 67 unit, hand line 9 unit, sero 140 unit, payang 29 unit, bubu 10 unit, and bagan apung 26 unit. Thirth option based on the AHP method gave seven fish catching unit can be added, those are drift gill net 590 unit, bagan perahu 1.289 unit, hand line171 unit, sero 2.682 unit, payang 566 unit, bubu 197 unit, and bagan apung 512 unit.
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Judul: Strategi pengembangan usaha perikanan pelagis kecil di Perairan Utara Provinsi Aceh
Abstrak: Small pelagic fish represent fishery resources which are at most laboured by coastal communities because easy to cacth and big potency, inclusive in north territorial water of Aceh . PPN Lampulo is a main location of small pelagic fishery activities in Banda Aceh City and Province of Provinsi Aceh. This location is very strategic to open a catching fishery effort because near with the downtown, especially fish market so the fishers who also need daily necessary equipments won’t cost big amount of money. This research aim to analyze maximum sustainable yield (MSY) of small pelagic resources, to analyze financial feasibility of small pelagic fisheries effort, to determine small pelagic fishing units according technical aspect, serfaireble aspect, and the continueing, and to formulate development strategy of small pelagic fisheries effort. The method of research are standard analysis of fishing unit, biological aspect analysis, financial analysis (NPV, IRR, and B/C Ratio), scoring analysis, and hierarchy analysis. Maximum sustainable yield (MSY) of small pelagic resources in north territorial water of Aceh are estimated 15479 tons per year and F-optimum are 4896 trips. If compared by a annual production (7069,35 ton), hence the utilization of small pelagic resources about 45,67 %, so this condition gives development opportunities in the future. From nine type of fishing unit to catch small pelagic fish in north territorial water of Aceh, there are four chosen as sustainable fishing units according technical aspect, biological aspect, and the sutainable aspect. They are drift gillnet (VA = 2,927), purse seine (VA = 2,575), payang (VA = 1,657), and beach seine (VA = 1,319). Gillnet, purse seine, boat seine, beach seine are feasible to develop in the location, because have NPV > 0, IRR > 6,25 %, and B/C ratio > 1. Strategy priority to develop small pelagic fisheries effort in north territorial water of Aceh, re-management of small pelagic fishing bussness are : empawerment of human resources ( RK = 0,214, II = 0,05), sequerly ( RK = 0,196, II = 0,05), development of fishing technology precisely (RK = 0,180, II = 0,05), development of skim credit to fisheries effort (RK = 0,145, II = 0,05), and development of exploitation and restocking zone (RK = 0,137, II = 0,05), and repair of management system of re-management of fisheries infrastructure system ( RK = 0,126, II = 0,05). As first priority, construction strategy of human resources being of stable to intervention of fishermen and government.
Keyword: Fisheries, Aceh, Fisheries infrastructure system

Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology