DEPIK Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan
Not a member yet
571 research outputs found
Sort by
Aplikasi madu untuk pengarahan jenis kelamin pada ikan nila (Oreochromis niloticus)
Get PDFAbstract. The objective of this research was to found the optimum concentration of honey for sex reversal of male tilapia. The non factorial completely randomize design was used for this research, the factor that has been examined were honey concentrations at level of 0%, 0.05 %, 0.1%, 0.15 % and 0.2 % for 24 hours submersion. The data were subjected to Anova test and followed by BNT test. The results showed that the differences of honey concentrations was significantly influence the percentage of male tilapia (P0.05), but did not affect significantly on the survival rates. (P0.05). In general, the percentage of male tilapia was increased with increasing the honey concentrations, where the higher percentage of male was found at 0.2 % (81.43%), and it was different significantly with other concentrations. It is concluded that 0.2% of honey is suitable for male tilapia sex reversal.Keywords: Honey; Sex reversal; Tilapia (Oreochromis niloticus); Male; SubmersionAbstrak. Penelitian ini bertujuan untuk mengetahui konsentrasi madu yang efektif menghasilkan ikan nila (O. niloticus) kelamin jantan yang paling tinggi. Rancangan Acak Lengkap (RAL) non faktorial digunakan dalam penelitian ini, faktor yang diuji adalah perbedaan konsentrasi madu, yaitu 0 %(kontrol), 0,05 %, 0,1 %, 0,15 % dan 0,2% ppt selama 24 jam perendaman. Hasil uji ANOVA menunjukkan bahwa perbedaan konsentrasi madu berpengaruh nyata terhiadap persentase nila jantan yang dihasilkan (P0,05), namun tidak berpengaruh nyata terhadap kelulushidupan baik selama perendaman maupun pemeliharaan (P0,05). Secara umum terlihat persentase kelamin jantan meningkat seiring dengan peningkatan konsentrasi madu dalam larutan perendam. Uji lanjut menggunakan BNJ memperlihatkan bahwa persentase nila jantan tertinggi dijumpai pada konsentrasi 0,2% (81,43%0,23), nilai ini berbeda nyata dengan perlakuan lainnya. Dengan demikian dapat disimpulkan bahwa konsentrasi madu 0,2% sesuai dan efektif untuk pengarahan jenis kelamin jantan pada ikan nila.Kata kunci: Madu; Pengarahan jenis kelamin; Nila(Oreochromis niloticus); Jantan; Perendama
Analisis subsidi perikanan non BBM di Kabupaten Aceh Besar, Provinsi Aceh
Get PDFAbstract. The objective of the present study was to analyze the budgetary trends and the effectiveness of fisheries subsidies in Aceh Besar district. The literature and survey methods were utilized in this study. The secondary data of Aceh Besars budget documents in the period of 2010-2012 and key person interviews with fishermen leaders were conducted to analysis the subsidy trend and fishermen perception. The data was collected in May through July 2012. The results showed the budget allocation to the fisheries sector were increased from year to year, in 2010 the total budget for the fisheries sector was Rp1, 9 billions (equivalent to 0.34% of total buget or 1.40% of the development budget allocation/indirect consumption), in it was increased to Rp2, 9 billion in 2011 (or 0.42% of total budget or 1.47% of the development budget allocation), then increased sharply in 2012 to Rp9, 2 billion (an increase of over 630%) from the previous year, equivalent to 1.11% of the total budget. In 2010, the proportion of subsidies were given mostly for aquaculture sub-sector, which reached 84% of the total budget that was managed by the Department of Marine and Fisheries of Aceh Besar, whereas in 2011 the proportion of subsidies occurred balance between aquaculture and capture fishery sub sectors. However, in 2012 most of the budget DKP Aceh Besar (63%) was allocated to the capture fishery sub-sector. The results of the study showed that fisheries subsidies by the Government of Aceh Besar district especially in the last two years have not yet met the criteria of sustainable fisheries subsidies. Keywords: fisheries subsidies, budget allocation, and Aceh Besa
Kajian potensi perairan dangkal untuk pengembangan wisata bahari dan dampak pemanfaatannya bagi masyarakat sekitar (studi kasus Pulau Semak Daun sebagai daerah penunjang kegiatan wisata Pulau Pramuka Kabupaten Administrasi Kepulauan Seribu)
Get PDFAbstract. Semakdaun and Pramuka are islands in kepulauan seribu administrated regency of Jakarta province that have typical resources and become tourism destination, by means this research choose semak daun and pramuka to be research place. This research purpose is study potential recourshe in shallow water of Semak Daun island for increasing marine tourism in Pramuka island, and to know impact of increasing marine tourism to economy and social of local people. This research was conducted on Mei 2013 up to July 2013. The method of this research is descriptive quantitative analysis calculations using percent cover of coral, abundance of reef fish, suitability index of marine tourism, marine tourism area carrying capacity, analysis of Marine Tourism Economic Impact on the community using a multiplier effect . The results obtained from this study are: first, percent cover of coral communities on the Semak daun island categorized from moderate to very good and it ranged between 29.67 % -77.66 %. Second, Semak Daun Island area suitable for diving tourism activities, snorkeling , and beach tourism carrying capacity for diving site is 98 people / day and for snorkling is 242 people / day . Third, Tourists Visitor in Pramuka island has increased which in 2012 reached 36 218 visitors . Fourth, marine tourism activities in Semak Daun island and pramuka Island put up economic impact for society as service user and tourism workers by increasing income the value of Keynesian Local Income Multiplier 1.09, Type I Multiplier Income Ratio is 1.10 and Ratio Income Multiplier, Type II is 1.27.Keywords : Semak Daun island, marine tourism, Pramuka island, carrying capacity, multiplier effectAbstrak. Pulau Semak Daun dan Pulau Pramuka merupakan pulau yang ada di Provinsi Daerah Khusus Ibukota Jakarta tepatnya di Kabupaten Administrasi Kepulauan Seribu yang memiliki sumberdaya alam yang khas dan menjadi salah satu tujuan wisatawan, oleh karena itu penelitian ini memilih Pulau Semak Daun dan Pulau Pramuka menjadi tempat kajian penelitian. Tujuan penelitian ini adalah mengkaji Potensi Sumberdaya di perairan dangkal Pulau Semak Daun untuk pengembangan kegiatan wisata bahari Pulau Pramuka dan memprediksi dampak pengembangan wisata bahari terhadap kondisi sosial dan ekonomi masyarakat setempat. Penelitian ini telah dilaksanakan pada bulan Mei 2013 Juli 2013. Metode yang digunakan pada penelitian ini adalah deskriptif kuantitatif dengan menggunakan analisis perhitungan persen tutupan komunitas karang, kelimpahan ikan karang, indeks kesesuaian wisata bahari, daya dukung kawasan wisata bahari, dan analisis Dampak Ekonomi Wisata Bahari terhadap masyarakat menggunakan multiplier efect. Hasil yang diperoleh dari penelitian ini yaitu persen tutupan komunitas karang di Pulau Semak Daun di kategorikan dari sedang sampai sangat baik yaitu berkisar antara 29,67%-77,66%, kawasan Pulau Semak Daun sesuai untuk aktivitas wisata selam dan snorkling dengan daya dukung kawasan untuk wisata selam 98 orang/hari, snorkling 242 orang/hari, Wisatawan yang berkunjung ke Pulau Pramuka mengalami peningkatan yakni pada tahun 2012 mencapai 36.218 pengunjung; dan kegiatan wisata bahari Pulau Semak Daun dan Pulau Pramuka memberi dampak terhadap peningkatan ekonomi masyarakat sebagai penyedia jasa dan pekerja wisata yaitu bertambahnya pendapatan dengan nilai Keynesian Local Income Multiplier 1,09, Ratio Income Multiplier Tipe I adalah 1,10 dan Ratio Income Multiplier, Tipe II adalah 1,27.Kata Kunci : Pulau Semak Daun, Wisata Bahari, Pulau Pramuka, daya dukung, Multiplier efect
Keragaman ikan karang di perairan Pulau Makian Provinsi Maluku Utara
Get PDFAbstract. The objective of the present study was to identify and evaluate reef fish community structure at Makian Island. Sampling was conducted in two stations at coordinate position of 00.2215.75N -127 .2512.00E to 00 .227.90N - 127. 2517.40E with two different depths i.e. 5 meters and 10 meters. Coral reef data were collected using line intercept transect method, while the reef fish data were taken using a census visual method. A total of 138 species of coral reef fishes were recorded during the survey belong to 47 genera and 21 families. The fish diversity on station 1 for both depths (5 meters and 10 meters) were a medium level, while on station 2 at 5 meters water depth was also a medium category, but a higher diversity was detected at 10 meters depth. The percentage coral covers on station 1 at 5 meters depth was a medium level, at 10 meters depth was classified as high covered, while on station 2 at 5 meters and 10 meters depth were classified very high percent covers.Key word. Diversity, coral, percent covers, and line intercept transec
Karakter bilateral simetri ikan betutu (Oxyeleotris sp.): Kajian keragaman morfologi sebagai dasar pengembangan budidaya
Get PDFAbstract. Genetic diversity information of Gobiidae is needed as a basis for management of its culture or conservation efforts. Mean while, the stability development of the paired organs in animals is closely related to the level of their genetic diversity. In this regard, a study has been conducted to determine of bilateral symmetry characteristics of marble gobies from Jenderal Soedirman reservoir of Banjarnegara and Rawapening Swamp of Salatiga. A survey method was used with purposive sampling technique. The observed variables were abnormalities and meristic bilateral characters. The characters including the number of soft rays on pectoral fins and pelvic fins, and the number of scales on lateral lines. The results showed that both marble gobies from Jenderal Soedirman Reservoir and Rawapening Swamp did not show abnormalities. However, their bilateral meristic characters had been fluctuated, especially for pectoral fins and lateral lines; whereas pelvic fins seem to be symmetry. According to their observed bilateral symmetry characters, in general, it could be concluded that marble gobies from Jenderal Soedirman Reservoir had a better genetic diversity compare to those from Rawapening Swamp. Therefore, it can be used as local genetic resources.Key words. Bilateral symmetry character, marbel gobies, Jenderal Soedirman Reservoirs, Rawa pening Swam
Studi sebaran sedimen berdasarkan ukuran butir di perairan Kuala Gigieng, Kabupaten Aceh Besar, Provinsi Aceh
Get PDFAbstract. The objective of the present study was to evaluate the distribution of sediments in the estuary of Kuala Gigieng. The study was done on Mei to June 2011 and the sampling was conducted in three areas of estuary i.e. downestuarine, middle-estuarine and river section of Kuala Gigieng. The wet sieving analysis method was used in this study. The data was then weighed and the percentage was calculated and classified based on the Wentworth scale. The results showed that (1) the mean grain size of sediment of each area was 0.50 mm, 0.65 mm and 0.56 mm and the characteristically, the sediment distribution was consisted of medium sand 63.42%, fine sand 23.40%, coarse sand 5.59%, very fine sand-mud 4.13% and pebble 0.17%. The currents speed were 0.25 m/s, 0.23 m/s and 0.19 m/s. The current speed has influenced the sediment distribution where small grains were mostly found at higher current speed. Key words. Estuary, currents and sediment distributio
Efektivitas alat tangkap ikan lemuru di Kabupaten Kotabaru, Kalimantan Selatan
Get PDFAbstract. This research was conducted on the east coast of Kotabaru District, South Kalimantan on October to November 2011 using survey methods and literatures review. Primary data obtained by direct observation at research location and performing direct interview with various parties; like fishermen, ship owner, TPI officials and other stakeholders in Kotabaru. The result of direct interview obtained that fishing gear to Tembang Fish (including Lemuru) are lift net and mini purse seine. Based on Standardization Efforts formula the most effective fishing gear for catching Lemuru in Kotabaru District is Purse Seine. Socialization needed to fishers that the recommended tool for catching lemuru in Kotabaru District is the purse seine with fishing fleet size 3 GT 10 GT.Keywords: fishing gear, lemuru fish, Kotabaru, purse sein
Pemetaan potensi daerah untuk pengembangan kawasan minapolitan di beberapa lokasi dalam Provinsi Aceh: suatu kajian awal
Get PDFAbstract. The objective of the present survey was to map the potency of locations for developing of minapolitan area in Aceh province. The survey was conducted on November-December 2011 and it was focused on the four districts i.e. Aceh Jaya, Aceh Besar, Bireuen and Aceh Timur. The data were categorized into two types, i.e. secondary data which was compiled from annual reports, research report and other references. The primary data were collected throught direct and indirect interviewed the key persons in fisheries sector by using the questionnaire. Primary data were also obtained by direct observation in the fields. The results showed that every site has the advantages and disadvantages. However, generally all of the locations have potency to be developed as minapolitan region. Minapolitan models that can be developed are the combination between of capture fisheries, aquaculture, processing and marine tourism. Keywords: Capture fihery, aquaculture, fish processing industry and marine touris
Isolasi dan karakterisasi bakteri berpotensi probiotik pada ikan kembung (Rastrelliger sp.)
Get PDFAbstract. Probiotics bacteria are beneficial microbes to improve microbial balance in the digestive tract. The objective of the research was to isolate and characterize of potential probiotic bacteria in mackerel fish (Rastrelliger sp.). The research was done from April to August 2012 at Laboratory of Microbiology Syiah Kuala University, Banda Aceh. Isolation and characterization used dilution and scratches quadrant methods. The result showed that there were five potential isolates of probiotic bacteria varied morphological colony and cell. The isolate have circular form (100%), entire margin (80%), flat (60%), cream color (40%), gram positive bacteria (80%), coccus shape (100%) and non motile (60%).Keywords: Probiotics, Rastrelliger sp., isolation, digestive and characterizatio
Aplikasi model hidrologi HBV di DAS Peusangan Aceh sebagai studi pengantar pengembangan konsep ekohidrologi berkelanjutan
Get PDFAbstract. A study of HBV hydrological model in Peusangan watershed Aceh as a preface study to the development of sustainable ecohydrological concept was done. The objective of the study was to apply and to test the HBV subtropical model into a tropical region Peusangan watershed. Peusangan watershed, situated in northern Aceh, covers an area of 2268.39 km2 and 128 km in length. The HBV model was manually calibrated by trial adjustment of each parameter to obtain the appropriate physical characteristics of Peusangan watershed. The result showed that the model was nearly consistent with the observation data. In fact, the correlation and error bias of the model were 0.623 and 0.11, respectively. However, the weakness of the model reported in the study is due to the coverage of the weather station data whi ch locate far in the downstream of Peusangan watershed. In the meantime, both of model result and observation showed a good agreement to catch the peakflow of Peusangan watershed. The two peakflow arise on May and October which were 212 m3dt-1 and 250 m3dt-1, respectively.Keywords. HBV Hydrological model, Peusangan watershed, peakflo