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MODEL SEA RANCHING IKAN KERAPU MACAN (Epinephelus Fuscoguttatus) DI PERAIRAN SEMAK DAUN, KEPULAUAN SERIBU ((Sea Ranching Model of Brown-Marbled Grouper (Epinephelus Fuscoguttatus) in Semak Daun Island, Seribu Islands)) Kurnia, Rahmat; Suwardi, Kadarwan; Muchsin, Ismudi; Boer, Mennofatria
Jurnal Marine Fisheries Vol 4, No 1 (2013): Marine Fisheries
Publisher : Jurnal Marine Fisheries

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Abstract

Sea ranching merupakan pelepasan ikan ke laut untuk ditangkap setelah mencapai ukuran konsumsi. Sea ranching biasanya diterapkan ketika rekrutmen alami rendah atau bahkan tidak ada dikarenakan sangat intensifnya penangkapan atau rusaknya habitat yang mendukung hal tersebut. Penelitian ini mengkaji daya dukung berdasarkan produktivitas primer. Selain itu juga mengkaji model restocking dalam sistem sea ranching.  Kajian ini menemukan bahwa perairan Semak Daun sudah mengalami tangkap lebih rekrutmen (recruitment overfishing).  Untuk itu perlu dilakukan restocking dengan sistem sea ranching. Daya dukung perairan bagi ikan kerapu macan, yaitu antara 0,703-1,06 ton/th dengan rata-rata 0,88 ton/th. Tebar sebaiknya diterapkan setiap bulan dan penangkapan pun dilakukan setiap hari sepanjang bulan. Pola tebar yang optimal adalah panjang benih 11 cm dengan  padat tebar 14.000 ekor pada mortalitas tangkapan 0,5 atau panjang benih 13 cm dengan padat tebar 13000 pada mortalitas tangkapan 0,4. Kata kunci: daya dukung, Epinephelus fuscoguttatus,restocking, sea ranching
Analisis Keberlanjutan Perikanan Ikan Terbang di Kabupaten Takalar, Sulawesi Selatan Sri Fitrianti, Riana; Mukhlis Kamal, Moh.; Kurnia, Rahmat
DEPIK Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Vol 3, No 2 (2014): August 2014
Publisher : Faculty of Marine and Fisheries, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (444.721 KB) | DOI: 10.13170/depik.3.2.1470

Abstract

Abstract. The objective of the present study was to assess fisheries sustainability of flying fish in Takalar, South Sulawesi using RAPFISH analysis which is composed of four dimensions (ecological, economic, social, and technological).The results of sustainability analysis show that sustainability index in Takalar is 30.93, indicates that the status of flying fish commodities was less sustainable. Monte Carlo analysis results revealed that fisheries sustainability index is strongly stable. Leverage analysis results showed that there were 10 sensitive attributes of 15 existing attributes. Ten sensitive attributes should be of concern to policy makers and become policy priorities in the management of flying fish in Takalar.Hence, arrangement and the implementation of policies on sustainable flying fish fishery in Takalar is cricually needed. Keywords : Sustainability status of Flying fish; RAPFISH; Takalar; South Sulawesi Abstrak. Penelitian ini bertujuan untuk menilai status keberlanjutan sumberdaya ikan terbangdi Selat Makassar.Metode yang digunakan adalah metode analisis RAPFISH dengan menggunakan 4 dimensi yaitu ekologi, ekonomi, sosial, dan teknologi.Hasil penelitian menunjukkan bahwa status keberlanjutan perikanan ikan terbang di Kabupaten Takalardikategorikankurang berkelanjutan karena nilai indeks yang dihasilkan hanya sebesar 30.93. Hasil analisis sensitivitas menunjukkan bahwa dari total 15 atribut yang digunakan, teridentifikasi 10 atribut sensitif yang mempengaruhi nilai indeks keberlanjutan perikanan ikan terbang yaitu: jangkauan daerah penangkapan, ukuran ikan yang tertangkap, ikan yang tertangkap sebelum dewasa, pasar utama telur, harga jual, sumber modal kerja, pemanfaatan traditional ecological knowledge, sistem ponggawa-sawi, pola kerja, dan perubahan alat tangkap bale-bale. Sedangkan 5 atribut yang tersisa dikategorikan tidak sensitif.Dengan demikian, penyusunan dan penerapan kebijakan yang dapat memperbaiki kondisi keberlanjutan perikanan ikan terbang di Kabupaten Takalar dianggap perlu dilakukan.Kata kunci :Status Keberlanjutan Ikan Terbang; RAPFISH; Kabupaten Takalar; Sulawesi Selatan
Biologi Populasi Rajungan (Portunus Pelagicus) dan Karakteristik Lingkungan Habitat Esensialnya Sebagai Upaya Awal Perlindungan di Lampung Timur Kurnia, Rahmat; Boer, Mennofatria; Zairion, .
Jurnal Ilmu Pertanian Indonesia Vol 19, No 1 (2014): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

There are several option management measures in preventing sustainability stock of the blue swimming crab (Portunus pelagicus), i.e., nursery ground conservation. Thus, the objective of this study was to analyses habitat characteristic and its population biology in the PGN marine embayment of Labuhan Maringgai, as one among crab habitat essential in East Lampung coastal water. The potential nursery ground conservation was assessed by habitat suitability index, carrying capacity, distribution and abundance as well as crabs size. The result shows that environmental condition was still suitable, even though the habitat carrying capacity tend to degraded by an increasing of turbidity and sedimentation at the embayment mouth. The crabs captured were also not representing of peak abundance season and recruitment during sampling period, while those crab size almost 100% under Lm50. The strategic management directive is required to control in utilization of crab’s essential habitat, including crab fishing by any fishing gear resulted undersize captured crabs. Meanwhile, to propose habitat essential conservation might need more consideration and comprehensive study, including social economic and cultural aspects and co-management approach may be required in management measure applied. Keywords: conservation, East Lampung, essential habitat, population biology, Portunus pelagicus
POTENSI PENGEMBANGAN PERIKANAN TANGKAP PADA PULAU KECIL TERLUAR (STUDI KASUS : PULAU ENGGANO PROVINSI BENGKULU) Cahyadinata, Indra; Fahrudin, Achmad; Sulistiono, Sulistiono; Kurnia, Rahmat
Jurnal AGRISEP JURNAL AGRISEP VOL 17 NO 2 2018
Publisher : Prodi Agribisnis Jurusan Sosial Ekonomi Pertanian Fakultas Pertanian Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (554.289 KB) | DOI: 10.31186/jagrisep.17.2.151-162

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Enggano Island is one of the small outer island in Indonesia. The development of fisheries activity is aimed at optimizing the utilization of fisheries and marine resources through strengthening fishermans independence in fishing effort by still focus on resource sustainability. This study aims to analyze the potential of catch fisheries in North Bengkulu District and describe its development potential in Enggano Island. The data used is secondary data and the analysis used are descriptive, regional economic concentration (LQ) and potential analysis. The results show that North Bengkulu is categorized as very potential for the development of catch fisheries, especially small pelagic fish, demersal fish, hard-skinned fish, soft fish, and other aquatic fishes, with production value 13.59% of the value of catch fisheries production Bengkulu Province. The production of catch fisheries of Enggano Island is 27.89% of catch fisheries production in North Bengkulu and crab is a potential species because it is only produced in Enggano Island and not other sub-districts in North Bengkulu, with production about 19.4% of crab production in Bengkulu Province.
ESTIMASI DAYA DUKUNG LINGKUNGAN KERAMBA JARING APUNG, DI PERAIRAN PULAU SEMAK DAUN KEPULAUAN SERIBU, DKI JAKARTA Bramana, Aditya; Damar, Ario; Kurnia, Rahmat
Jurnal Teknologi Perikanan dan Kelautan Vol 5, No 2 (2014): NOVEMBER 2014
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24319/jtpk.5.161-170

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Penelitian ini menguraikan estimasi daya dukung lingkungan perairan terhadap kegiatan budidaya.Analisis yang digunakan yaitu estimasi limbah organik dan pendugaan daya dukung perairan. Jenis ikan yang dibudidayakan yaitu ikan kerapu. Hasil penelitian menunjukkan, bahwa beban limbah dari kegiatan budidaya sebesar 1.04 kg N/hari/ unit. Estimasi beban limbah antropogenik yaitu 20.56 kg N/hari. Berdasarkan pendekatan beban limbah N, daya dukung lingkungan perairan Pulau Semak Daun terhadap kegiatan budidaya adalah 114 unit keramba jaring apung. Diasumsikan satu unit keramba jaring apung menghasilkan 300 kg ikan, maka diperoleh 28.2 ton produksi ikan yang dapat ditampung.
Biologi Populasi Rajungan (Portunus Pelagicus) dan Karakteristik Lingkungan Habitat Esensialnya Sebagai Upaya Awal Perlindungan di Lampung Timur Kurnia, Rahmat; Boer, Mennofatria; Zairion, .
Jurnal Ilmu Pertanian Indonesia Vol 19, No 1 (2014): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (463.439 KB)

Abstract

There are several option management measures in preventing sustainability stock of the blue swimming crab (Portunus pelagicus), i.e., nursery ground conservation. Thus, the objective of this study was to analyses habitat characteristic and its population biology in the PGN marine embayment of Labuhan Maringgai, as one among crab habitat essential in East Lampung coastal water. The potential nursery ground conservation was assessed by habitat suitability index, carrying capacity, distribution and abundance as well as crabs size. The result shows that environmental condition was still suitable, even though the habitat carrying capacity tend to degraded by an increasing of turbidity and sedimentation at the embayment mouth. The crabs captured were also not representing of peak abundance season and recruitment during sampling period, while those crab size almost 100% under Lm50. The strategic management directive is required to control in utilization of crab’s essential habitat, including crab fishing by any fishing gear resulted undersize captured crabs. Meanwhile, to propose habitat essential conservation might need more consideration and comprehensive study, including social economic and cultural aspects and co-management approach may be required in management measure applied.
MODEL PENGENDALIAN PENCEMARAN LAUT UNTUK MENINGKATKAN DAYA DUKUNG LINGKUNGAN TELUK JAKARTA Firmansyah, Irman; Riani, Etty; Kurnia, Rahmat
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 2, No 1 (2012): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (409.497 KB) | DOI: 10.29244/jpsl.2.1.22

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Jakarta Bay is important in coastal management for ecological and economical approach. Another case, it’s also as a river estuary area. Many rivers pass Jakarta Capital City, Bogor, Tangerang and Bekasi areas. The objective of this research were conducted to identify kind of source contamination, assimilation capacities of Jakarta Bay, important elements for contamination effect, and then to construct Sea Contamination Control model, for management policy instruction to prevent Jakarta Bay contamination. This research was operated from Agustus 2005 until April 2006. The analysis of this research used the system approach (dynamic system model). The contamination sources of this area were domestic waste, industrial disposal and waste of market. This contamination levels have an exceeded assimilation capacities: TDS is equal to 2 313 609.07 ton/month, PO4 is equal to 518.85 ton/month, SO4 is equal to 141 610.11 ton/month, MBAS is equal to 441.87 ton/month, KMnO4 is equal to 23 785.43 ton/month, BOD is equal to 16 369.05 ton/month, dan COD is equal to 52 983.15 ton/month. The interpretative structural modelling (ISM) indicated that there are five primary factors, namely law enforcement, good cooperation of stakeholders, good relation of area management, good compromise of need assessment, vision, target and mission to managing the environment. Keywords: assimilation capacities, contamination, dynamic system model, jakarta bay
Strategi Pemanfaatan Perairan Pesisir untuk Budi Daya Kerang Hijau (Perna viridis L.) di Kuala Langsa, Provinsi Aceh Sagita, Andi; Kurnia, Rahmat; Sulistiono, .
Jurnal Ilmu Pertanian Indonesia Vol 22, No 3 (2017): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (165.906 KB) | DOI: 10.18343/jipi.22.3.172

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Development of green mussel culture currently still requires the determination of strategies in accordance with the potential and conditions of coastal areas as well as management culture system. This research aims to formulate strategies of the utilization coastal waters for green mussel culture in coastal Kuala Langsa, Aceh Province. Data collected to identify internal factors and external, including primary and secondary data, while the determination of respondents using purposive sampling method. SWOT Analysis is used for strategy determined while prioritizing strategy using Quantitative Strategies Planning Matrix (QSPM) analysis. Based on SWOT analysis, identified 9 strength factors, 4 weakness factors, 6 opportunity factors, and 5 threat factors and 8 strategies, then the priority of strategies is determined with QSPM analysis, the sequence of the most important priority is: counseling and training to improve the management of green mussel culture for coastal communities (WO1); green mussel culture can be integrated with the involvement of coastal communities as stakeholders (WO2); optimization of coastal waters for green mussel culture is supported by ecology conditions (SO1); green mussel culture can be done with longline method with a density of 20 individuals/basket 5.30 l (SO3); site selection for culture and spat collection of green mussel should consider coastal oceanographic factors (ST1); controlling the level of waste disposal from the mainland so as not to pollute coastal areas (ST2); and to formulate practical guidance of management of green mussel culture based on the food security principle.
The Adaptive Capacity of Corals Based on the Health Level to Estimate the Carrying Capacity of the Marine Ecotourism in Enggano Island Johan, Yar; Yulianda, Fredinan; Kurnia, Rahmat; Muchsin, Ismudi
Journal Omni-Akuatika Vol 14, No 1 (2018): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (768.124 KB) | DOI: 10.20884/1.oa.2018.14.1.289

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Enggano Island is one of the outermost islands of Indonesia. Among the recoverable resources that exist in Enggano Island are coral reef ecosystems. A coral reef ecosystem is also one of the ecosystems with a high level of biodiversity productivity having a major role as habitats, feeding places, and the coastal protection from the crashing of waves and strong currents. Currently, coral reefs are being destroyed either by nature or humans. The ability of an ecosystem to adapt to a disturbance or potential damage is called adaptive capacity. The aim of the study was to assess the adaptive capacity of corals in terms of their health levels to estimate the carrying capacity of marine ecotourism. The observation method used was survey method. Adaptive capacity measurements were carried out by analyzing six parameters: hard coral cover (%), distances from human settlements (km), dominance of lifeform, types of lifeform, reef fish species, and coral reef depth (m). The results of this study showed that Enggano Island corals had the adaptive capacity that fell into two categories: medium and adaptiveEnggano Island is one of the outermost islands of Indonesia. Among the recoverable resources that exist in Enggano Island are coral reef ecosystems. A coral reef ecosystem is also one of the ecosystems with a high level of biodiversity productivity having a major role as habitats, feeding places, and the coastal protection from the crashing of waves and strong currents. Currently, coral reefs are being destroyed either by nature or humans. The ability of an ecosystem to adapt to a disturbance or potential damage is called adaptive capacity. The aim of the study was to assess the adaptive capacity of corals in terms of their health levels to estimate the carrying capacity of marine ecotourism. The observation method used was survey method. Adaptive capacity measurements were carried out by analyzing six parameters: hard coral cover (%), distances from human settlements (km), dominance of lifeform, types of lifeform, reef fish species, and coral reef depth (m). The results of this study showed that Enggano Island corals had the adaptive capacity that fell into two categories: medium and adaptive
Tangkapan Kerapu Macan (Ephinephelus fuscoguttatus) di Perairan Semak Daun, Kepulauan Seribu Kurnia, Rahmat; Suwandi, Kadarwan; Muchsin, Ismudi; Boer, Mennofatria
Buletin PSP Vol 19, No 3 (2011): Buletin PSP
Publisher : Institut Pertanian Bogor

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Abstract

Penelitian ini mengkaji hasil tangkapan dan pola pertumbuhan ikan kerapu macan di perairan Semak Daun. Rata-rata hasil tangkapan ikan kerapu macan di perairan Semak Daun adalah 38.3 kg/bulan dengan simpangan baku 15.9 kg atau 0.098 kg/hari/perahu. Parameter pertumbuhannya adalah K = 0.27 per tahun, L∞ = 97.48 cm, dan to = -0.44, dengan hubungan panjang dan bobot mengikuti bentuk hubungan: W=0.008L3.16. Kajian ini pun menemukan bahwa di perairan Semak Daun sudah terjadi recruitment overfishing sehingga memerlukan langkah proteksi induk atau restocking.