1,720,970 research outputs found
The Current Speed, depth and Catch perunit efoort of Bottom Gill net in Southern Bulukumba Coast, South Sulawesi
No full textThe objective of this study was to analyses catch per unit effort of bottom gill net related to current speed and water depth in southern Bulukumba coast, South Sulawesi. The study was conducted from April 2010 to November 2011. Fish catches were monitored to describe the predominant species caught. The length of gill net was 500 m and depth 5 m. Mesh size was 6 cm and shortening 45 %. Total catch was decrease with increase current speed. The highest catch was occurred in current speed 0.08 msec-1. In contras, the lowest catch was occurred in current speed 0.31 msec-1. Altogether 13 species were identified from 4 fishing efforts of bottom gill net. The average catch per unit effort per day in fishing ground with less than 20 m in depth was 21.2 kg. On the other hand, in more than 40 m in depth was 30.2 kg. Total catch was strongly related to water depth
PELAKSANAAN MANAJEMEN BERBASIS SEKOLAH DALAM MENINGKATKAN MUTU PENDIDIKAN DI SMP NEGERI 4 PEUSANGANKABUPATEN BIREUEN
Full text linkSchool based management (MBS) is an alternative in educational management that emphasizes in the school autonomy and creativity to improve the quality of education. This research is aiming at knowing the implementation of MBS in the field of: 1) learning teaching process, 2) school administration, and 3) school relationship with society to improve the quality of SMPN 4 Peusangan Bireuen Regency. This research used a qualitative approach with a descriptive method. The data were gathered by using observation, interview and documentation. The subject of the research were school principal, vice principal, teacher, and school’s committee. The result showed as follow:1) In learning teaching process, there were three activities, they were: a) opening; checking attendance, asking previous material (pretest) and apperception, b) main activity; explaining about aims of study, writing the core of materials, explaining the materials, using instructional tools and concluding the study, and c) closing; giving question,reexplaining unclear material, giving assignment (posttest), and informing the materials that will be discussed in the next meeting. 2) for school’s personnel,there were supervising and developing the school’s personnels by involving them in making decision of the school, activating the school’s MGMP, sending teachers to follow trainings, giving permittion for teachers who want to pursue their degree. Besides, there were also promotion, mutation, job discontinuance,compensation and employees’ evaluation. 3) to build school relationship with the society, there were several efforts have been done such as forming and empowering school’s committee, having a routine meeting with school’s committtee at the end of semester, obligating the parents to take the rapport of their children every semester, explaining the improvement and the declining of school’s prestige,building the relationship with society to be involved actively in the improvement of educational quality, providing information about the school to the society and cultivate the transparancy in school management
Catch composition and Size distribution of the spiny lobster (Panulirus spp) related to oceanography parameters of the southern coast of South Sulawesi
No full textThe objective of the present study was to analyses Catch composition and Size distribution of the spiny lobster related to oceanography parameters. The study was conducted from March to August 2014 on the south coast of Bulukumba, South Sulawesi.Spiny lobsters (Panulirus spp) are economically important crustaceans due to their value as a food. The spiny lobster caught generally by traps and bottom gillnets sometimes by divers support significant commercial catches along the South Sulawesi coast. The objective of the present study was to analyses Catch composition and Size distribution of the spiny lobster related to oceanography parameters. The study was conducted from March to August 2014 on the south coast of Bulukumba, South Sulawesi. Bottom gillnet was used in this study to catch the spiny lobsters Oceanography parameters such as temperature, salinity, and current velocity were used to relate the lobster catch from the coastal fishing grounds during the fishing season. Catch composition of spiny lobsters consist of P.ornatus 47.5 %, P. homarus 25.8 %, P.versicolor 21.2 %, P.penicilatus 11 %. Carapace length of P.ornatus with most of the individuals sized from 41-50 mm, P.homarus 51-60 mm, P. versicolor 41-60 mm, P. penicilatus 41-50 mm. The Oceanography parameters recorded from the fishing ground during fishing period were well within the optimum ranges such as temperature (27-29??C), salinity (30-31 ???), and current velocity (004-0.09 m/sec)
Modeling the Contribution of Traditional Sero Fisheries to Blue Economy Goals: Evidence from Rural Indonesia
Full text linkGraphical Abstract
Highlight Research
1. Artisanal sero fisheries in Bone Regency were assessed within the context of sustainable fisheries governance and the blue economy framework.
2. Six latent variables, economic characteristics, perceptions of fishing techniques, social factors, institutional dynamics, policy understanding, and regulatory compliance, were analysed using Structural Equation Modelling (SEM).
3. Socioeconomic status, institutional trust, and policy knowledge were found to be the strongest predictors of fishers’ compliance with fisheries regulations.
4. Strengthening fisher participation, promoting sustainable fishing education, and integrating sero fisheries into coastal zoning are key strategies to enhance compliance and support blue economy resilience.
Abstract
This study examines the integration of traditional sero (staked weir) fisheries in Bone Regency, Indonesia, into the sustainable governance and blue economy frameworks. Despite their socio-cultural importance, these small-scale fisheries remain undervalued in policy discourse and local management plans. This research utilizes Structural Equation Modelling (SEM) to assess fishers' perspectives and the factors driving regulatory compliance across six latent variables: economic characteristics, fishing techniques, social aspects, institutional dynamics, policy knowledge, and compliance behavior. The measurement model was empirically distinct, with all Heterotrait-Monotrait Ratio (HTMT) values below the 0.85 threshold. Key findings indicate that Policy Knowledge (C) has the most potent positive effect on compliance, with β = 0.902. Additionally, Livelihood Resilience (B) significantly affects compliance (β = 0.760), whereas Socioeconomic Characteristics (X) have a substantial adverse direct effect (β =- 1.003). Together, these variables explain a significant proportion of the variance in compliance behavior, with an R2 of 0.915. The results indicate that higher income, institutional trust, and strong community ties enhance compliance by enabling fishers to adopt sustainable practices. Conversely, economic instability hinders the application of policy knowledge. The study concludes that involving fishers in organizations and strengthening institutional support are vital for aligning artisanal practices with the blue economy. Implementing coastal spatial planning and adaptive interventions will help balance ecological preservation with the economic well-being of coastal communities
Spatiotemporal Analysis Based on GIS with an In-Situ Approach to Rebon Shrimp (Acetes sp.) Fisheries in Various Coastal Ecosystems of Bone Gulf in Indonesia
Full text linkRebon shrimp (Acetes spp.) is a key fishery resource in the coastal waters of Bone Bay, South Sulawesi. This study analyzes the spatiotemporal distribution of Acetes sp. using in-situ data and Geographic Information Systems (GIS) across four ecosystem types: estuary, mangrove, sand, and seagrass. Sampling was conducted twice monthly from February 2024 to January 2025. Environmental parameters such as temperature, salinity, pH, dissolved oxygen, brightness, current speed, and substrate type were recorded at each station using GPS. Spatial distribution was mapped using Kriging and IDW interpolation methods. Results indicated peak abundance during the Transitional I (April-June) and Transitional II (October-November) seasons, especially in mangrove and estuarine areas (ST4, ST5, ST6). Conversely, shrimp density declined significantly during the East (July-August) and West (December-February) monsoons. Temperature and salinity positively correlated with shrimp density, while brightness and substrate influenced habitat preferences. Size analysis revealed that 81.6% of the shrimp sampled had reached gonadal maturity, indicating high potential for harvest. The GISbased approach effectively identified productive zones and seasonal patterns, supporting the development of sustainable, location-based management strategies that align with blue economy principles-balancing ecological sustainability and the livelihoods of coastal communities
ANALISIS PRODUKTIVITAS PURSE SEINE YANG MENGGUNAKAN ALAT BANTU PENANGKAPAN IKAN RUMPON DI PERAIRAN TELUK BONE
Full text linkTujuan penelitian ini untuk menganalisis hubungan antara panjang atraktor rumpon, kedalaman perairan, dan jarak rumpon dari garis pantai dengan produktivitas purse. Metode survei dilaksanakan dengan mengumpulkan data primer meliputi: titik koordinat lokasi rumpon, panjang atraktor, kedalaman perairan dan jarak rumpon dari garis pantai terdekat dan produktivitas jumlah hasil tangkapan purse seine setiap hauling serta data tambahan melalui wawancara dengan nelayan purse seine. Data sekunder berupa peta lokasi penelitian dan data statistik dari Dinas Kelautan dan Perikanan Kab. Bone. Data diolah dengan menggunakan program Excel dan ArcGIS 10.1 yang kemudian divisualisasikan dalam bentuk deskriptif (Peta dan grafik). Hasil penelitian menunjukkan bahwa 107 unit rumpon berhasil dipetakan di perairan Teluk Bone. Hubungan antara panjang atraktor dan kedalaman perairan dengan produktivitas purse seine tidak signifikan, dan tidak hubungan antara jarak rumpon dari garis pantai dengan produktivitas purse seine. Produktivitas purse seine tertinggi diperoleh pada rumpon kode A2B2C1
PENDUGAAN MUSIM PENANGKAPAN IKAN CAKALANG (Katsuwonus Pelamis) DI TELUK BONE
Full text linkPerairan Teluk Bone yang terletak di wilayah pengelolaan perikanan (WPP 713) merupakan salah satu daerah penangkapan ikan cakalang terbaik di Indonesia. Tujuan dari penelitian ini menentukan musim penangkapan ikan cakalang (Katsuwonus pelamis) di Teluk Bone dan menganalisis hubungan antara hasil tangkapan ikan cakalang (Katsuwonus pelamis) dengan faktor oseanografi di Teluk Bone. Metode yang digunakan adalah metode survey, penelitian ini menggunakan dua kelompok data yaitu data primer adalah data hasil pengamatan langsung dilapangan, sedangkan data sekunder meliputi data citra suhu permukaan laut dan klorofil serta data hasil tangkapan perbulan selama kurun waktu 4 tahun terakhir (2011 – 2014) dari dinas perikanan kabupaten Luwu. Hasil penelitian menunjukkan puncak musim penangkapan ikan cakalang di Teluk Bone dalam kurun waktu tahun 2011 – 2014 terjadi pada kuartal IV (Oktober, November dan Desember). Distribusi suhu permukaan laut di daerah penangkapan ikan cakalang berkisar antara 29.5°C – 30°C dan konsentrasi klorofil-a berkisar 0,22 – 0,25 mg/m³. Terdapat korelasi yang signifikan antara hasil tangkapan cakalang dengan suhu permukaan laut, sedangkan tidak terdapat korelasi yang signifikan antara hasil tangkapan cakalang dengan klorofil-a
Optimizing chlo and sst for skipjack tuna fisheries in the banda sea and its surroundings using GAM and ECDF
No full textThis study aims to determine the optimal values of chlorophylla (Chlo) and Sea Surface Temperature (SST) for skipjack fishing (Katsuwonus pelamis) in the Banda Sea and its surroundings using the GAM model and ECDF function. The GAM model yields the formula CPUE = 33.07 + s(Chlo, edf = 7.14, Ref.df = 8.09) + s(SST, edf = 8.95, Ref.df = 8.99), with a significant value for Chlo of 0.58 mg/m3 and an SST of 28.26°C, as well as the highest CPUE value of 51.84. Due to the low performance of the GAM model, ECDF is used to determine the optimal values of Chlo and SST. The results of the Kolmogorov-Smirnov test on the ECDF value showed a p-value for Chlo of 0.0016 and SST of 4.45e-14 (p < 0.05). Thus, there was a significant difference between the f(t) and g(t) distributions at Chlo = 0.28 mg/m3 and SST = 30.57°C. K-Means analysis shows that the optimal value range for Chlo is 0.075 - 0.33 mg/m3 and for SST is 29.47 - 30.47°C. The optimal months are January to June as well as October, where the combination of SST and Chlo concentrations reaches levels that support the productivity of skipjack fishery. However, from July to September, lower SSTs begin to dominate, which can reduce fishery optimality, although some regions still have supportive Chlorophyll. In November and December, SSTs reach very high levels, potentially reducing productivity efficiency
Laju tangkap dan hasil tangkapan bagan tancap dengan menggunakan lampu Light Emitting Diode (LED) di Perairan Pangkajene dan Kepulauan
Full text linkThis study aims to find out the catch rate and fcomposition of catches and frequency of appearance. This study was carried out in June - October 2021 by following one unit of Fixed Lift-net tool as many as 30 trips and 44 hauling times each 10 trips for each lamp color. White Light Capture Rate 5.92 kg /h, yellow light 2.62 kg /h and blue light 1.57 kg/h. The results of the study conducted obtained the composition of the catch for 30 trips 44 hauling using LED aids in white, yellow and blue obtained as much as 1113.5 kg, white light catch 669.3 kg, yellow light 274.4 kg while blue light 169.8 kg. The fish species with the most frequency of occurrence out of 44 capture hauling were squid (Loligo Sp) 93.18%, Lemuru (Sardinela Fimbriata) 81.82%, Peperek (Leiognathur Equulus) 56.82%, Selanget (Anodontosoma Chacun) 50.00% and Selar (Selaroides Leptolepis) 34.09%.Â
Penggunaan Atraktor Buatan yang Ramah Lingkungan dalam Pemanenan Anakan Udang Lobster Laut (Panulirus spp)
Full text linkSpiny lobster (Panulirus spp) is one of important commodities in Bulukumba Regency. The lobsters used for aquaculture were obtained from the wild catch in the sea. The purpose of this study was to develop artificial gear to attract the lobster seed to beeasily caught. The research was conducted in marine coastal of Ujung Bulu, Bulukumba Regency, South Sulawesi from July to October 2013. There are three artificial attractors that consisted of light attractor, trap shelter attractor, and shelter benthic attractor. Results showed that the spiny lobster catches from artificial attractor consisted of 47.5 % of pearl lobster (Panulirus ornatus), 25.8% of sand lobster (P. homarus), 21.2 % of bamboo lobster (P. versi color), 5.6% of stone lobster (P. penicilatus). The carapace length of both pearl lobsterand sand lobster ranged from 2,6 to 6,0 cm, which were longest among the other lobsters..
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