Article Per Year (5 Year)
p-Index From 2021 - 2026
5.315
P-Index
This Author published in this journals
All Journal Journal of Marine and Aquatic Sciences Omni-Akuatika International Journal of Remote Sensing and Earth Sciences (IJReSES) Techno-Fish JURNAL VOKASI ILMU-ILMU PERIKANAN (JVIP) Jurnal Aquatik JURNAL BAHARI PAPADAK Jurnal Bioteknologi & Biosains Indonesia (JBBI) Jurnal Bioteknologi & Biosains Indonesia
Alexander Leonidas Kangkan
Universitas Nusa Cendana
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science Health Professions Immunology & microbiology Physics Social Sciences

Published : 45 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 45 Documents
Search

 1   2   3   4   5 
PERBEDAAN JENIS UMPAN PADA ALAT TANGKAP PANCING ULUR TERHADAP HASIL TANGKAPAN DI PERAIRAN DESA PULAU BUAYA KABUPATEN ALOR NUSA TENGGARA TIMUR Sokan, Aman R.; Kangkan, Alexander L.; Boikh, Lebrina Ivantry
Jurnal Bahari Papadak Vol 6 No 1 (2025): Jurnal Bahari Papadak
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstrak –Tujuan dari penelitian ini adalah untuk mengetahui perbedaan jenis umpan buatan yang berbeda terhadap hasil tangkapan di perairan desa Pulau Buaya Kecamatan Alor Barat Laut Kabupaten Alor. Metode penelitian yang digunakan adalah metode eksperimen dengan menggunakan dua unit alat tangkap pancing ulur dengan penerapan umpan bulu ayam dan benang mas. Prosedur penelitian yaitu: 1) pembuatan umpan, 2) penyikatan pada mata pancing sebanyak 15 umpan, 3) pemberat digunakan hanya 1 buah pada tali ulur, 4) Proses penurunan pada kedua jenis umpan tersebut dilakukan secara bersamaan pada kedalaman yang diinginkan kemudian menunggu beberpa menit sekitar 5-10 menit, 5) ​Proses penarikan, apabila umpan telah dimakan ikan maka pancing. Analisis data dengan menggunakan uji t- student ((Independent samples test), sebelum melakukan uji t- student dilakukan uji normalitas liliefors. Hasil penelitian menunjukkan bahwa terdapat rata-rata perbedaan hasil tangkapan dengan dua jenis umpan pancing ulur. Dari kedua jenis umpan yang digunakan, hasil tangkapan terbanyak 36 ekor ikan kombong layang dengan berat keseluruhan 8,1 kg dari hasil tangkapan menggunakan umpan benang mas dan 32 ekor ikan tongkol dari hasil tangkapan menggunakan umpan bulu ayam dengan berat keseluruhan 11,8 kg, sehingga dapat disimpulkan bahwa terdapat perbedaan rata-rata yang signifikan antara jenis umpan terhadap hasil tangkapan di perairan Desa Pulau Buaya Kabupaten Alor Nusa Tenggara Timur. Kata Kunci : Perbedaan jenis umpan, Alat tangkap, Pancing ulur, Pulau Buaya Kabupaten Alor. Abstract -The purpose of this study was to determine the difference in different types of artificial bait on the catch in the waters of Pulau Buaya village, Northwest Alor District, Alor Regency. The research method used was the experimental method using two units of handline fishing gear with the application of chicken feather bait and gold thread. The research procedures are: 1) making bait, 2) brushing on the eye of the fishing line as much as 15 baits, 3) weights are used only 1 piece on the line, 4) The process of lowering the two types of bait is carried out simultaneously at the desired depth then waiting for a few minutes about 5-10 minutes, 5) The withdrawal process, if the bait has been eaten by the fish then the fishing rod. Data analysis using the t-student test (Independent samples test), before conducting the t-student test, the Liliefors normality test is carried out. The results showed that there was an average difference in catches with two types of fishing bait. Of the two types of bait used, the highest catch was 36 kombong layang fish with a total weight of 8.1 kg from the catch using gold thread bait and 32 tuna from the catch using chicken feather bait with a total weight of 11.8 kg, so it can be concluded that there is a significant average difference between the types of bait on the catch in the waters of Pulau Buaya Village, Alor Regency, East Nusa Tenggara. Keywords: Different types of bait, Fishing gear, Hand line, Buaya Island, Alor Regency.
DIVERSITY AND DENSITY OF MEGABENTHOS IN CORAL REEF ECOSYSTEMS IN KERA ISLAND WATERS, KUPANG DISTRICT, INDONESIA Kangkan, Alexander L.; Sine, Kiik G.; Boik, Rini I.
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol. 11 No. 1 (2024)
Publisher : BRIN - Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jbbi.2024.5597

Abstract

Kera Island belongs to the small islands of the East Nusa Tenggara with the potential conservation of coral reefs and various associated megabenthos organisms. This research aims to a) determine the diversity and density of megabenthos in coral reef ecosystems in Kera Island Waters, b) investigate the grouping between variables from environmental characteristics of megabenthos in coral reef ecosystems in Kera Island Waters, and c) observe the relationship between the diversity and density of megabenthos with the percentage of coral cover in Kera Island Waters. The research method used was a survey with direct measurements in the field. Megabenthos data was taken using the Benthos Belt Transect technique, while the coral cover was taken using the Underwater Photo Transect technique and analyzed using CPCe 4.1 software. The research data were then analyzed for density and percentage of megabenthos, diversity index value, (H’) Shannon, coral cover, organic matter, carbonate content, principal component analysis, and correlation. The study's results regarding the diversity index value of megabenthos in Kera Island Waters ranged from 0.796 to 1.631. The similarity of environmental parameters makes two main components. The first includes current velocity, organic content, dissolved oxygen, and depth; the second are carbonate content, TDS, temperature, and salinity characterize the second main component. The average organic matter was 8.32%, while the carbonate content was 50.09%. The coral reefs and megabenthos density had a robust relationship, with a correlation coefficient of 0.93.
DIVERSITY AND DENSITY OF MEGABENTHOS IN CORAL REEF ECOSYSTEMS IN KERA ISLAND WATERS, KUPANG DISTRICT, INDONESIA Kangkan, Alexander L.; Sine, Kiik G.; Boik, Rini I.
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol. 11 No. 1 (2024)
Publisher : BRIN - Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jbbi.2024.5597

Abstract

Kera Island belongs to the small islands of the East Nusa Tenggara with the potential conservation of coral reefs and various associated megabenthos organisms. This research aims to a) determine the diversity and density of megabenthos in coral reef ecosystems in Kera Island Waters, b) investigate the grouping between variables from environmental characteristics of megabenthos in coral reef ecosystems in Kera Island Waters, and c) observe the relationship between the diversity and density of megabenthos with the percentage of coral cover in Kera Island Waters. The research method used was a survey with direct measurements in the field. Megabenthos data was taken using the Benthos Belt Transect technique, while the coral cover was taken using the Underwater Photo Transect technique and analyzed using CPCe 4.1 software. The research data were then analyzed for density and percentage of megabenthos, diversity index value, (H’) Shannon, coral cover, organic matter, carbonate content, principal component analysis, and correlation. The study's results regarding the diversity index value of megabenthos in Kera Island Waters ranged from 0.796 to 1.631. The similarity of environmental parameters makes two main components. The first includes current velocity, organic content, dissolved oxygen, and depth; the second are carbonate content, TDS, temperature, and salinity characterize the second main component. The average organic matter was 8.32%, while the carbonate content was 50.09%. The coral reefs and megabenthos density had a robust relationship, with a correlation coefficient of 0.93.
GENUS SERTA BENTUK PERTUMBUHAN KARANG DAN ASOSIASINYA PADA WILAYAH TAMAN WISATA ALAM LAUT TELUK KUPANG DAN SEKITARNYA Ledoh, Ardy Rion; Toruan, Lumban N. L.; Kangkan, Alexander L.
Jurnal Bahari Papadak Vol 6 No 2 (2025): Jurnal Bahari Papadak
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstrak - Terumbu karang adalah hewan bentik yang umumnya hidup berkoloni yang tersusun atas kalsium karbonat (CaCO3) sebagai hasil sekresi dari Zooxanthellae. TWAL Teluk Kupang meliputi hampir seluruh perairan teluk yang terletak di sebelah barat Pulau Timor termasuk pulau kecil yang tercakup didalamnya seperti Pulau Kera. Salah satu potensi yang dimiliki oleh TWAL Teluk Kupang adalah terumbu karang. Tujuan penelitian ini adalah untuk mengkaji genus-genus karang beserta bentuk pertumbuhannya di perairan TWAL Teluk Kupang dan Sekitarnya. Penelitian ini dilaksanakan pada Bulan Oktober 2023. Pengambilan sampel menggunakan transek sepanjang 50 m dan pemotretan dilakukan dengan interval 1 meter. Hasil penelitian mengidentifikasi sebanyak delapan bentuk pertumbuhan karang yaitu Acropora Branching, Coral Branching, Coral Encrusting, Coral Foliose, Coral Massive, Coral Mushroom, Coral Submassive dan Soft Coral. Terdapat sembilan belas genus karang yang ditemukan yaitu Acropora sp, Astreopora sp, Diploastrea sp, Echinopora sp, Favia sp, Favites sp, Fungia sp, Goniastrea sp, Montastrea sp, Montipora sp, Pachyseris sp, Pavona sp, Pectinia sp, Platygyra sp, Pocillopora speciosa, Porites sp, Psammocora sp, Seriatopora sp, Stylophora sp. Kata kunci: Bentuk pertumbuhan, Genus, Teluk Kupang, Terumbu karang Abstract - Coral reefs are benthic animals that generally live in colonies composed of calcium carbonate (CaCO3) as a result of secretions from Zooxanthellae. The Kupang Bay TWAL covers almost all bay waters located on the west side of Timor Island, including small islands such as Kera Island. One of the potentials of the Kupang Bay TWAL is coral reefs. The purpose of this study was to assess the genus of corals and their growth forms in the waters of TWAL Teluk Kupang and its surroundings. This research was conducted in October 2023. Sampling used 50 m transect and photographing was done at 1 meter intervals. The results identified eight forms of coral growth, namely Acropora Branching, Coral Branching, Coral Encrusting, Coral Foliose, Coral Massive, Coral Mushroom, Coral Submassive and Soft Coral. There are nineteen coral genus found, namely Acropora sp, Astreopora sp, Diploastrea sp, Echinopora sp, Favia sp, Favites sp, Fungia sp, Goniastrea sp, Montastrea sp, Montipora sp, Pachyseris sp, Pavona sp, Pectinia sp, Platygyra sp, Pocillopora speciosa, Porites sp, Psammocora sp, Seriatopora sp, Stylophora sp. Keywords : Life form, Genus, Kupang Bay, Coral reefs
ANALISIS TINGKAT KERAMAHAN LINGKUNGAN ALAT TANGKAP PANCING ULUR DI DESA SAKUBATUN BERDASARKAN KRITERIA CCRF FAO Pou, Alexius A. J.; Kangkan, Alexander L.; Sine, Kiik G.
Jurnal Bahari Papadak Vol 6 No 2 (2025): Jurnal Bahari Papadak
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstrak - Perikanan tangkap yang ramah lingkungan baiknya memiliki selektivitas alat tangkap yang tinggi untuk mendapat kan hasil tangkapan utama, tentunya hal ini akan berpengaruh pada keberlanjutan populasi ikan di perairan Desa Sakubatun. Penelitian ini bertujuan untuk mengetahui keramahan alat tangkap pancing ulur berdasarkan 9 kriteria CCRF yang ditetapkan oleh FAO (1995) terhadap alat tangkap ramah lingkungan. Sampel ditentukan berdasarkan metode sensus dengan responden yang terpilih 34 orang. Teknik pengumpulan data dikumpulkan menggunakan observasi, wawancara dan dokumentasi pada 34 sampel yang dipilih secara acak pada periode bulan Juli-Agustus 2024. Penentuan skor akhir keramahan alat tangkap menggunakan analisis deskriptif kualitatif dan kuantitatif. Keramahan alat tangkap pancing ulur dinilai melalui skoring pada 9 kriteria CCRF dengan total 34 orang. Berdasarkan wawancara dengan 34 orang, yakni nelayan yang menggunakan alat tangkap pancing ulur di Desa Sakubatun, diperoleh skor keramahan lingkungan alatsebesar 31,35. Hasil tersebut menunjukkan bahwa alat tangkap pancing ulur termasuk dalam kategori alat tangkap yang sangat ramah lingkungan. Kata Kunci : Alat Tangkap, CCRF, Tingkat Keramahan Abstrak - Environmentally friendly fishing should have a high selectivity of fishing gear to get the main catch, of course this will affect the sustainability of fish populations in the waters of Sakubatun Village. This study aims to determine the friendliness of longline fishing gear based on 9 CCRF criteria set by FAO (1995) for environmentally friendly fishing gear. The sample was determined based on the census method with 34 respondents selected. Data collection techniques were collected using observation, interviews and documentation on 34 randomly selected samples in the July-August 2024 period. Determination of the final score of fishing gear friendliness using qualitative and quantitative descriptive analysis. The friendliness of handline fishing gear was assessed through scoring on 9 CCRF criteria with a total of 34 people. Based on interviews with 34 people, namely fishermen using longline fishing gear in Sakubatun Village, an environmental friendliness score of 31.35 was obtained. These results indicate that handline fishing gear is included in the category of fishing gear that is very environmentally friendly. Keywords : Fishing Gear, CCRF, Level of Friendliness
Co-Authors ., Yahyah A. Paulus, Chaterina Ade Yulita Hesti Lukas Agnette Tjendawangi Agus Hartoko Al Ayubi, Aludin Aludin Al Ayubi Ayubi, Aludin Al Belmo, Theresia Virginia Benu, Ronli Beto, Anastasia Boik, Rini I. Calumba, Kristianti Rilenitiara Christanto Salut Felix Rebhung Fonny J.L Risamasu G. Gato, Agnes Novalita Klaudia Hasrim Wulang Imelda Citra Pulo Kian Tokan Kiik G. Sine Kiik Gretty Sine Kristina A Making Lady Cindy Soewarlan, Lady Cindy Lafu, Maria Oktafiana Lau, Sabina Sofiana Leba, Tresna Mahdalena Lebrina Ivantry Boikh Ledoh, Ardy Rion Leni, Agelda Herdemris Lima, Yandres Lumban Nauli Lumban Toruan Luwarti, Yohana Mala, Aurelius Gode Ga’a Manehat, Maria E. Mau, Antonius Nahak, Febrianti Scolatika Paa, Beatrix Fernanda Pandu, Juni Astika Paulus, Chaterina A Paulus, Chaterina A. Pou, Alexius A. J. Radja, Claudya Hau Ratuamkin, Selestina Ina D. Rudiyanto U.D Gaba Saunoah, Wilhelmus Y. L. Seran, Frederikus Sevanster Lakapu Sine, Kiik G. Sokan, Aman R. Tafuli, Maria Oktaviana Takumau, Welly Marse Yuliana Talan, Ani Tasik, Marlin Fanggi Tolang, Diknas Yusuf Toruan, Lumban N. L. Toruan, Lumban Nauli Lumban Ude, Yohana Febrina Ulrikus Jansen W. Wangge