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All Journal dCartesian: Jurnal Matematika dan Aplikasi Jurnal Ilmiah Sains d'Cartesian: Jurnal Matematika dan Aplikasi
Winsy Ch.D Weku
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Mathematics Physics

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Analisis Penentuan Musim Penangkapan Ikan Cakalang (Katsuwonus Pelamis L.) di Perairan Sangihe Sulawesi Utara Paendong, Marline S; Kekenusa, John Socrates; Weku, Winsy Ch.D
d'CARTESIAN:Jurnal Matematika dan Aplikasi Vol 3, No 2 (2014): September 2014
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (450.379 KB) | DOI: 10.35799/dc.3.2.2014.6774

Abstract

Analisis Penentuan Musim Penangkapan Ikan Cakalang (Katsuwonus Pelamis L.) di Perairan Sangihe Sulawesi Utara Abstract Study on fishing season for skipjack tuna Katsuwonus pelamis, was described in the Sangihe waters North Sulawesi. The data was used based upon the catch and fishing trip monthly by purse seine in fish landing places at Sangihe over the periods 2008 to 2013. The analysis for fishing season using The Average Percentage Methods. The result showed that the skipjack tuna can be caught throughout the year. The fishing season for skipjack tuna occurred during April to October, while November to March are not fishing season. Keywords : Skipjack tuna, purse seine, fishing season, The AveragePercentage Methods.   Abstrak Studi musim penangkapan ikan untuk tuna cakalang Katsuwonus pelamis, digambarkan di perairan Sangihe Sulawesi Utara. Data yang digunakan berdasarkan hasil tangkapan dan memancing bulanan dengan pukat cincin di tempat-tempat pendaratan ikan di Sangihe selama masa 2008 sampai 2013. Analisis untuk musim penangkapan ikan menggunakan Metode Persentase rata-rata. Hasil penelitian menunjukkan bahwa tuna cakalang dapat ditangkap sepanjang tahun. Musim penangkapan ikan untuk tuna cakalang terjadi selama April sampai Oktober, sementara bulan November - Maret bukan musim memancing. Kata kunci: tuna cakalang, pukat cincin, musim penangkapan ikan, Metode AveragePercentage.
Analisis Penentuan Musim Penangkapan Ikan Cakalang (Katsuwonus Pelamis L.) di Perairan Sangihe Sulawesi Utara Marline S Paendong; John Socrates Kekenusa; Winsy Ch.D Weku
d\'Cartesian: Jurnal Matematika dan Aplikasi Vol. 3 No. 2 (2014): September 2014
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/dc.3.2.2014.6774

Abstract

Analisis Penentuan Musim Penangkapan Ikan Cakalang (Katsuwonus Pelamis L.) di Perairan Sangihe Sulawesi Utara Abstract Study on fishing season for skipjack tuna Katsuwonus pelamis, was described in the Sangihe waters North Sulawesi. The data was used based upon the catch and fishing trip monthly by purse seine in fish landing places at Sangihe over the periods 2008 to 2013. The analysis for fishing season using The Average Percentage Methods. The result showed that the skipjack tuna can be caught throughout the year. The fishing season for skipjack tuna occurred during April to October, while November to March are not fishing season. Keywords : Skipjack tuna, purse seine, fishing season, The AveragePercentage Methods.   Abstrak Studi musim penangkapan ikan untuk tuna cakalang Katsuwonus pelamis, digambarkan di perairan Sangihe Sulawesi Utara. Data yang digunakan berdasarkan hasil tangkapan dan memancing bulanan dengan pukat cincin di tempat-tempat pendaratan ikan di Sangihe selama masa 2008 sampai 2013. Analisis untuk musim penangkapan ikan menggunakan Metode Persentase rata-rata. Hasil penelitian menunjukkan bahwa tuna cakalang dapat ditangkap sepanjang tahun. Musim penangkapan ikan untuk tuna cakalang terjadi selama April sampai Oktober, sementara bulan November - Maret bukan musim memancing. Kata kunci: tuna cakalang, pukat cincin, musim penangkapan ikan, Metode AveragePercentage.
Geographically Weighted Regression Modeling with Adaptive Gaussian Kernel Weighting on GRDP in Indonesia Tangka, Frangly Elviano; Hatidja, Djoni; Weku, Winsy Ch.D
Jurnal Ilmiah Sains Volume 24 Issue 2, October 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jis.v24i2.50366

Abstract

The purpose of this study is to determine the variables that affect Gross Regional Domestic Product (GRDP) in Indonesia in 2022 using Geographically Weighted Regression (GWR) with Adaptive Gaussian kernel weighting function. The data used in this study uses secondary data taken from the website of the Central Bureau of Statistics.  The variables used are gross regional domestic product of 34 provinces in Indonesia (Y, in billion rupiah), labor force participation rate (X1, in %), foreign investment (X2, in million dollars), open unemployment rate (X3, in %) and human development index (X4, in %).  Data were analyzed using GWR with adaptive gaussian kernel weighting function. GRDP in all provinces on the island of Sumatra (11 provinces), DKI Jakarta province, Banten province, and West Kalimantan province are influenced by foreign investment (X2) and human development index (X4).  Meanwhile, GRDP in the other 19 provinces is only influenced by foreign investment (X2).  GWR model with adaptive gaussian kernel weighting function is formed differently for each province in Indonesia. Keywords: Adaptive gaussian kernel; GWR; gross regional domestic product
Co-Authors Djoni Hatidja John Socrates Kekenusa Marline Paendong Tangka, Frangly Elviano