1,720,959 research outputs found
Unveiling the Diversity of Bangka Island’s Mangroves: A Baseline for Effective Conservation and Restoration
No full textThe current state of the mangrove ecosystem on Bangka Island requires urgent attention from the local government to protect, restore, and conserve the remaining mangrove areas. Hence, this study endeavors to assess the species composition of mangroves on Bangka Island, examining their correlation with edaphic factors and shedding light on the zonation pattern within the region. We examined species composition, edaphic factors, and zonation patterns along 20 m x 100 m transects perpendicular to the waterfront at 22 sampling sites distributed across Bangka Island. Our findings revealed the presence of 21 mangrove species from ten families, including two mangrove associates. Among the documented species, the Rhizophoraceae family exhibited the highest floristic abundance with nine species. Edaphic factors (soil texture, pore-water salinity, N-total, P, and K) significantly influenced mangrove species composition (p < 0.05). However, these factors explained only 37.2% of the overall variability, suggesting additional factors contribute to the diverse zonation and composition of mangroves on Bangka Island. This study has relevant implications for the conservation and management of mangroves on Bangka Island. By gaining insight into the specific site's floristic composition, overall richness, and distribution, our findings can guide effective conservation and restoration strategies by understanding the factors shaping mangrove composition
STRATEGI PENGEMBANGAN WISATA DI PULAU SEMUJUR KABUPATEN BANGKA TENGAH
Full text linkThe uniqueness of Semujur Island tourism can be used as a forum for regional economic development that involves the roleof human resources and sustainable concepts. The aim of this research is to analyze appropriate strategies for developingtourism on Semujur Island. This research was carried out in November 2023 on Semujur Island, Central Bangka Regency.The method used is a descriptive survey with data obtained from primary data and secondary data, then a SWOT analysis iscarried out. The research results show that the priority strategy for tourism development on Semujur Island, Central BangkaRegency according to Iadran III (Self Improvement Strategy) is 1) Develop village regulations to emphasize the domicile ofresidents living on the island so that tourism awareness groups (pokdarwis) can be formed as the first step in developmentSemujur Island tour. 2) Carry out community empowerment for local residents to increase interest and awareness indeveloping tourism potential which can become a business opportunity in the economy. 3) Carry out repairs to neglectedpublic facilities and carry out regular maintenance and upkeep of these facilities by paying fees to visitors or the localcommunity.Keunikan pariwisata Pulau Semujur dapat digunakan sebagai forum untuk pengembangan ekonomi daerah yang melibatkan peran sumber daya manusia dan konsep berkelanjutan. Tujuan penelitian ini adalah untuk menganalisis strategi yang tepat untuk mengembangkan pariwisata di Pulau Semujur. Penelitian ini dilakukan pada bulan November 2023 di Pulau Semujur, Kabupaten Bangka Tengah. Metode yang digunakan adalah survei deskriptif dengan data yang diperoleh dari data primer dan data sekunder, kemudian dilakukan analisis SWOT. Hasil penelitian menunjukkan bahwa strategi prioritas untuk pengembangan pariwisata di Pulau Semujur, Kabupaten Bangka Tengah menurut Iadran III (Strategi Peningkatan Diri) adalah 1) Mengembangkan peraturan desa untuk menekankan domisili penduduk yang tinggal di pulau agar kelompok sadar wisata (pokdarwis) dapat dibentuk sebagai langkah awal dalam pengembangan wisata Pulau Semujur. 2) Melaksanakan pemberdayaan masyarakat bagi penduduk setempat untuk meningkatkan minat dan kesadaran dalam mengembangkan potensi pariwisata yang dapat menjadi peluang usaha dalam perekonomian. 3) Melakukan perbaikan fasilitas umum yang terbengkalai dan melakukan pemeliharaan serta perawatan rutin terhadap fasilitas tersebut dengan membayar biaya kepada pengunjung atau masyarakat setempat
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
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
Analisis CPUE dan Pola Musim Penangkapan Ikan Tenggiri (Scomberomorus spp.) yang Didaratkan di Pangkalan Pendaratan Ikan (PPI) Kurau Kabupaten Bangka Tengah
Full text linkTenggiri adalah salah satu jenis ikan yang memiliki nilai ekonomi yang tinggi dan banyak digemari oleh Masyarakat sebagai bahan baku untuk produk olahan perikanan serta sebagai komoditas ekspor. Kegiatan pemanfaatan perikanan terjadi di pelabuhan, seperti Pangkalan Pendaratan Ikan (PPI) Kurau Kabupaten Bangka Tengah. Namun, kegiatan pemanfaatan yang tidak tepat dapat membahayakan stok tenggiri di masa mendatang, sehingga penelitian ini bertujuan untuk mengetahui nilai CPUE, pola musim penangkapan, ukuran layak tangkap dan daerah penangkapan tenggiri dengan pancing ulur yang didaratkan di PPI Kurau Kabupaten Bangka Tengah. Penelitian ini dilaksanakan pada bulan Februari 2024. Metode yang digunakan adalah deskriptif dengan survei dan observasi. Pengumpulan data dengan metode survei dilakukan dengan wawancara nelayan dan dokumentasi data tahun 2019-2023 dari PPI Kurau, sedangkan pengumpulan data observasi dilakukan dengan mengukur panjang tenggiri secara langsung di lapangan. Hasil penelitian menunjukkan bahwa nilai CPUE tenggiri tahun 2019-2023 mengalami fluktuasi dengan nilai CPUE berkisar 17,18-30,24 kg/trip. Trend CPUE sedikit meningkat (naik) yang menandakan tingkat eksploitasi masih ditahap berkembang, dengan persamaan y = 0,0009x + 21,23 dan R2 = 0,0367. Musim puncak penangkapannya cenderung terjadi antara bulan November-April. Mayoritas tenggiri yang didaratkan memiliki panjang <65 cm, menandakan bahwa tenggiri yang ditangkap masih belum mencapai ukuran layak tangkap. Daerah penangkapan tenggiri berdasarkan hasil wawancara adalah sekitar Laut Natuna Utara dalam Wilayah Pengelolaan Perikanan Negara Republik Indonesia (WPPNRI) 711, seperti Pulau Bebuar, Mugung, Malang, Lemadang, Karang Ular, Karang Kering, Karang Sembilan, Tuing, dan Pulau Gelasa.
Kata Kunci : CPUE, Musim Penangkapan, Pancing Ulur, Tenggir
Keanekaragaman dan Status Konservasi Ikan Yang Tertangkap Pada Alat Tangkap Gillnet Tetap Di PPN Sungailiat
Full text linkOpen access to marine resources causes people to fish without control and ignore conservation and trade status. Theseactivities can cause population decline and population can lead to overfishing.. This is due to the lack of availability ofinformation and scientific data to fishermen regarding the conservation status of fish species. Therefore, this study aimsto identify and determine the conservation status of fish species caught using fixed gillnet fishing gear in PPN Sungailiat.Data collection was carried out in March-May 2024 at the PPN Sungailiat, Bangka Regency. This study uses survey andobservation methods with qualitative descriptive data analysis. The results showed that there were 13 families identified.The main catch in this study contained 12 species and by-catch there were 7 species. The conservation status of fishspecies caught on gillnet fishing gear remains at the Sungailiat VAT according to national regulations based on the Decreeof the Minister of Marine Affairs and Fisheries No. 01 of 2021 with unprotected status. Meanwhile, the conservationstatus of fish species based on IUCN has 6 categories, including 3 species of fish classified as Not Evaluated (NE), 5species classified as Least Concern (LC), 2 species classified as Near Threatened (NT), 2 species classified as Vulnerable(VU), 5 species classified as Endangered (EN) and 2 other species classified as Critically Endangered (CR). Meanwhile,the trade status based on CITES has 2 species of fish classified in Appendix II, namely Rhynchobatus australiae (palmray) and Rhina ancylostomus (barong shark). Based on the results of conservation and trade status, several managementapproaches need to be taken towards fisheries resources so that their populations are maintained.Sumberdaya laut yang bersifat open acces menyebabkan masyarakat menangkap ikan tanpa kendali dan mengabaikan status konservasi serta perdagangan, Kegiatan tersebut dapat menyebabkan penurunan populasi dan dikhawatirkan bisa menyebabkan overfishing. Hal ini dikarenakan kurangnya ketersediaan informasi dan data ilmiah kepada nelayan mengenai status konservasi jenis ikan. Oleh karena itu, penelitian ini bertujuan untuk mengidentifikasi dan mengetahui status konservasi jenis-jenis ikan yang tertangkap menggunakan alat tangkap gillnet tetap di PPN Sungailiat. Pengambilan data dilakukan pada bulan Maret-Mei 2024 di PPN Sungailiat, Kabupaten Bangka. Penelitian ini menggunakan metode survei dan observasi dengan analisis data secara deskriptif kualitatif. Hasil penelitian menunjukkan bahwa terdapat 13 famili yang teridentifikasi. Hasil tangkapan utama pada penelitian ini terdapat 12 spesies dan hasil tangkapan sampingan terdapat 7 spesies. Status konservasi jenis ikan yang tertangkap pada alat tangkap gillnet tetap di PPN Sungailiat menurut aturan nasional berdasarkan Keputusan Menteri Kelautan dan Perikanan No 01 Tahun 2021 berstatus tidak dilindungi. Sedangkan status konservasi jenis ikan berdasarkan IUCN terdapat 6 kategori antara lain 3 spesies ikan tergolong Not Evaluated (NE), 5 spesies tergolong Least Concern (LC), 2 spesies tergolong Near Threatened (NT), 2 spesies tergolong Vulnerable (VU), 5 spesies tergolong Endangered (EN) dan 2 spesies lainnya tergolong Critically Endangered (CR). Sedangkan status perdagangan berdasarkan CITES terdapat 2 spesies ikan tergolong ke Appendix II yaitu Rhynchobatus australiae (pari lontar) dan Rhina ancylostomus (hiu barong). Berdasarkan hasil status konservasi dan perdagangan, perlu dilakukan beberapa pendekatan pengelolaan terhadap sumberdaya perikanan agar populasinya tetap terjaga
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