1,720,955 research outputs found
Deskripsi Perikanan Demersal Tahun 1990-2017 Di Wilayah Pengelolaan Perikanan Negara Republik Indonesia (WPP RI) 712 Provinsi Jawa Timur Dalam Rangka Pengelolaan Berkelanjutan
Get PDFWilayah Pengelolaan Perikanan Negara Republik Indonesia, yang selanjutnya disingkat WPPNRI, merupakan wilayah pengelolaan perikanan untuk penangkapan ikan, pembudidayaan ikan, konservasi, penelitian, dan pengembangan perikanan yang meliputi perairan pedalaman, perairan kepulauan, laut teritorial, zona tambahan, dan zona ekonomi eksklusif Indonesia. WPPNRI sebagaimana dimaksud dalam Pasal 1 dibagi dalam 11 (sebelas) wilayah pengelolaan perikanan yaitu: (1) WPPNRI 571, (2) WPPNRI 572, (3) WPPNRI 573, (4) WPPNRI 711, (6) WPPNRI 713, (7) WPPNRI 714, (8) WPPNRI 715, (9) WPPNRI 716, (10) WPPNRI 717, (11) WPPNRI 718.
Ikan demersal merupakan kelompok ikan yang habitatnya berupa lumpur atau lumpur berpasir. Ikan-ikan utama yang termasuk dalam kelompok ikan demersal dapat dibagi menjadi dua jenis, yaitu ikan demersal besar dan ikan demersal kecil (Subani dan Barus,1989; Broer et al., 2001). Jenis alat tangkap yang digunakan untuk menangkap ikan demersal adalah dogol, jogol, cantrang, jarring insang dasar/labuh (jaring klitik), rawai dasar,bubu dasar, pukat tepi/pantai (beach net), jaringarad (otter trawl) dan pancing tangan (Subanidan Barus, 1989) dan sero (Dwiponggo, 1987;Tenriware, 2005). Ikan demersal di sekitar pantai merupakan target utama usaha penangkapan ikan oleh nelayan Kabupaten Indramayu dengan menggunakan alat tangkapsero, jaring klitik dan jaring pantai (Yulianto et.,al 2016).
Penelitian ini bertujuan untuk (1) Mengetahui komoditas perikanan tangkap unggulan perikanan demersal di WPP 573 Provinsi Jawa Timur; (2) Menentukan komoditas spesiesperikanan demersal, serta alat tangkap yang paling dominan di WPP 573 Provinsi Jawa Timur; (3) Mengetahui status pemanfaatan sumberdaya perikanan demersal di WPP 573 Provinsi Jawa Timur; (4) Menyusun skenario pengelolaan berkelanjutan dari perikanan demersal di WPP 573 Provinsi Jawa Timur.
Metode yang digunakan dalam penelitian ini yaitu penelitian ini adalah metode diskriptif kuantitaif karena dalam penelitian melakukan pengolahan data berupa angka serta analisisnya menggunakan Location Quotient (LQ), serta menggunakan metode holistik dengan model Surplus produksi (Scheafer 1954, Fox 1970, Walter-Hilborn 1976 cara satu dan cara dua) dan diteruskan dengan model analisis STELLA. Selanjutnya, untuk menduga nilai potensi tangkapan lestari (Maksimum sustainable yield) dan menggunakan model Walter-Hilborn 1976 cara satu dan cara dua untuk menduga potensi cadangan lestari.
Berdasarkan hasil analisis LQ didapatkan komoditas unggulan ikan lidah. Komoditas dominan perikanan demersal paling dominan yaitu Ikan Layur sebesar 67.089 ton. Keseluruhan dari komoditas perikanan demersal memiliki alat tangkap yang paling produktif yaitu alat tangkap Pukat cincin sebesar 2.265.951,89 ton. Tingkat Pengusahaan (Tpf) sumberdaya perikanan demersal yaitu 88% dan 82% yang termasuk kedalam status Fully exploited. Komoditas ikan layur didapatkan Tingkat Pengusahaanya 32% dan 266% yang termasuk dalam status Lighthly exploited dan Depleted. Hasil skenario pendugaan stok cadangan biomassa perikanan demersal didapatkan cadangan biomassa pada tahun 2027 didapatkan
viii
cadangan biomassa sebesar 27% dan Be sebesar 20221,95 ton dengan menggunakan alokasi effort JTB. Komoditas Unggulan ikan lidah didapatkan cadangan biomassa pada tahun 2027 didapatkan cadangan biomassa sebesar 1% dan Be sebesar 52,707 ton dengan menggunakan alokasi effort JTB
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Analysis of the relationship of water quality to total hemocytes in intensive ponds for vannamei shrimp (Litopenaeus vannamei) cultivation CV TTB, Pasuruan City, East Java
Get PDFOne type of shrimp that is quite potential to be developed is the vannamei shrimp (Litopenaeus vannamei). This cultivation is developing with intensive technology. This study aims to analyze the relationship between water quality and total hemocyte shrimp in vannamei shrimp aquaculture ponds. Parameters measured include physical and chemical parameters, namely temperature, brightness, pH, dissolved oxygen, TSS, BOD, ammonia. while to see the health of shrimp seen by calculating the total hemocytes (THC) of shrimp. The results showed that the overall range of water quality obtained was still in a suitable condition for cultivation activities, while the highest hemocyte value was obtained from the sample in the 3rd sampling which reached a value of 3.74 x 106 mg/l. Based on the results of the linear regression test, it was found that the TSS and BOD parameters were significantly correlated with total hemocytes in vannamei shrimp (Sig. 0.05), it can be concluded that the relationship between water quality parameters that affect total hemocyte is BOD and TS
Variations on the Author
Get PDF“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
Get PDFWe 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
Get PDFWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
