1,720,962 research outputs found
Korelasi Mangrove dengan Produksi Perikanan Budidaya
Full text linkPenelitian dilaksanakan di Kelurahan Samataring dan Desa Tongke Tongke Kecamatan Sinjai Timur, Kabupaten Sinjai. Tujuan penelitian ini sebagai berikut : (1) menganalisis korelasi antara persentase rasio mangrove dengan peningkatan produksi budidaya utama, (2) menganalisis korelasi antara persentase rasio mangrove dengan peningkatan produksi budidaya sambilan dan (3) menganalisis korelasi nilai manfaat langsung ekosistem mangrove dengan peningkatan produksi hasil tangkapan perairan pesisir. Hasil penelitian ini sebgai berikut:(1) persentase rasio mangrove dengan produksi budidaya utama berkorelasi negatif dan menghasilkan persamaan Y=8.800-0.091X dengan nilai R2 0.99, (2) persentase rasio mangrove dengan produksi budidaya sambilan berkorelasi positif dan menghasilkan persamaan Y=0.239+0.016X dengan nilai R2 0.99,dan (3) persentase rasio dengan nilai manfaat langsung ekosistem mangrove berkorelasi positif dengan peningkatan produksi tambak dan hasil tangkapan perikanan pesisir dan menghasilkan persamaan Y=0.347+0.458X dengan nilai R2 0.99Kata Kunci: Korelasi produksi budidaya dan nilai manfaatResearch conducted in the Village and Village Samataring Tongke Tongke East Sinjai district, Sinjai. The purpose of this study as follows: (1) analyze the correlation between the percentage ratio of mangrove with increased production of major cultivation, (2) analyze the correlation between the percentage ratio of mangrove with increased aquaculture production sideline and (3) analyze the correlation value of the direct benefits of mangrove ecosystem to boost output catches of coastal waters. The results of this study sebgai the following: (1) the percentage ratio of mangrove aquaculture production and generate major negative correlation equation Y = 8.800-0.091X with R2 0.99, (2) the percentage ratio of mangrove aquaculture production was positively correlated sideline and produce equation Y = 0.239 + 0.016X with R2 0.99, and (3) the percentage ratio of the value of the direct benefits of mangrove ecosystem is positively correlated with an increase in production ponds and coastal fisheries catch and produce the equation Y = 0347 + 0.458X with R2 0.99Keywords: Correlation aquaculture production and value benefits
PEMANFAATAN LAHAN TERLANTAR BEKAS GALIAN BATU MERAH UNTUK BUDIDAYA IKAN NILA SISTEM KARAMBA JARING TANCAP (Studi Kasus Desa Gentungang, Kabupaten Gowa)
Full text linkPenelitian ini dilaksanakan di Desa Gentungan,Kecamatan Bajeng Barat, Kabupaten Gowa, Provinsi Sulawesi Selatan, Indonesia selama lima bulan yaitu dari bulan Maret sampai bulan Juli 2016. Tujuan penelitian ini adalah untuk : (1) mengetahui kelayakan kualitas air selama pemeliharaan, (2) menganalisis laju pertumbuhan dan tingkat kelangsungan hidup, dan (3) menganalisis kelayakan usaha budidaya ikan pada lahan bekas galian batu merah. Metode yang digunakan dalam penelitian ini yaitu metode keramba jaring tancap yang berukuran 4.0 x 3.0 x 1.5 meter, dengan kepadatan rata-rata 20 ekor permeter. Hasil penelitian menunjukkan sebagai berikut: (1) hasil pengukuran kualitas air selama pemeliharaan berlangsung masih dalam batas kelayakan seperti disajikan pada Tabel 1, (2) hasil analisis pertumbuhan diperoleh rata-rata 184 gram selama 160 hari pemeliharaan dengan tingkat kelangsungan hidup sebesar 92,4%,.dan (3) hasil analisis kelaya-kan usaha layak dengan nilai benefit cost ratio sebesar 1:1.3
OPTIMASI PEMBERIAN Skeletonema costatum YANG DIPUPUK CAIRAN RUMEN DENGAN KEPADATAN YANG BERBEDA TERHADAP SINTASAN LARVA UDANG VANNAMEI (Litopenaeus Vannamei) STADIA ZOEA SAMPAI MYSIS
Full text linkThe purpose of this study was to determine the frequency of Skeletonema Costatum fostered optimal rumen fluid in increasing the survival rate of Vannamei shrimp larvae. The method used is Vannamei shrimp larvae stadia zoea obtained from the hatchery in North Galesong. Vannamei shrimp larvae are used as many as 200 birds/container research. Total container study 12 units with a capacity of each container as much as 45 liters of water but only filled with 20 liters of water. The treatments tested was feeding with different densities against Vannamei shrimp larvae survival. In this study, there are three treatments, namely feeding fostered rumen fluid with a density of 300 ml / container (treatment A), feeding fostered rumen fluid with a density of 400 ml / container (treatment B), feeding fostered rumen fluid with a density 500 ml / container (treatment C), and without the provision of rumen fluid (treatment D). Results of research on the best treatment obtained in treatment C (feeding with a frequency of 500 ml/container) with a survival rate of 55.33%. Need to pay attention to water quality parameters in order to stay in decent condition for the survival of Vannamei shrimp larvae
PENGARUH PEMBERIAN PAKAN KOMERSIAL YANG DIINKUBASI CAIRAN RUMEN TERHADAP RETENSI LEMAK DAN PROTEIN UDANG VANNAMEI (Litopenaeus vannamei)
Full text linkPenelitian ini bertujuan untuk mengetahui pengaruh pakan yang diinkubasi dengan cairan rumen dan tanpa cairan rumen terhadap retensi lemak dan protein, serta menentukan dosis yang tepat untuk larva udang vannamei (L. vannamei) dari stadium mysis 2 hingga PL13. Wadah penelitian yang digunakan berupa ember yang masing-masing berisi 5 liter air laut steril yang telah ditampung dan didiamkan selama 24 jam, serta dilengkapi dengan aerasi. Penelitian dilakukan pada bulan Mei sampai Juni 2018 di PT. Pertiwi Bahari Tengah, Kecamatan Galesong Selatan, Kabupaten Takalar, Provinsi Sulawesi Selatan. Dosis larutan yang digunakan adalah: tanpa cairan rumen (perlakuan A), 3 ml (perlakuan B), dan 5 ml (perlakuan C). Hasil penelitian menyimpulkan bahwa pemberian pakan komersial yang diinkubasi dengan 5 ml cairan rumen dapat meningkatkan retensi protein dan menurunkan retensi lemak pada larva udang vannamei
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
ANALISIS KUALITAS FISIKA DAN KIMIA PERAIRAN DI TAMBAK MARGINAL DESA MANAKKU, KABUPATEN PANGKAJENE DAN KEPULAUAN, PROVINSI SULAWESI SELATAN
Full text linkPenelitian ini dilaksanakan pada bulan Juli sampai Agustus 2019 untuk mengetahui parameter fisika dan kimia kawasan marginal tambak di Desa Manakku, Kecamatan Labakkang, Kabupaten Pangkajene dan Kepulauan, Provinsi Sulawesi Selatan. Selain itu, penelitian ini juga bertujuan untuk memberikan pengetahuan kepada petani tentang prinsip-prinsip ilmiah dan sifat-sifat air di kolam marginal. Temuan penelitian ini dapat dijadikan acuan dalam budidaya tambak. Penelitian ini menggunakan metodologi deskriptif, dengan pengambilan sampel dilakukan pada tiga titik tertentu: Kolam, Outlet, dan Inlet. Pengukuran dilakukan baik di lokasi maupun di luar lokasi. Parameter yang diuji secara in situ adalah suhu, salinitas, tingkat keasaman (pH), dan oksigen terlarut (DO). Sedangkan karakteristik yang dinilai di luar lingkungan alaminya antara lain amonia, nitrit, nitrat, fosfat, dan kebutuhan oksigen biologis (BOT). Parameter kualitas air diukur di tiga stasiun pengambilan sampel. Suhu berkisar antara 26,30 hingga 29,12℃, salinitas berkisar antara 4,87 hingga 33,12 ppt, pH berkisar antara 5,14 hingga 9,2, oksigen terlarut berkisar antara 2,28 hingga 6,02 mg/l, amonia berkisar antara 0,00325 hingga 1,3641 mg/l, nitrit berkisar kurang dari 0,007 hingga kurang dari 0,0010 mg/l, nitrat berkisar antara 0,13 hingga 0,93 mg/l, fosfat berkisar antara kurang dari 0,0021 hingga 0,0087 mg/l, dan kebutuhan oksigen biologis berkisar antara 14,4 hingga 23,23 mg/l
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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