Umar Tangke

@ummu.ac.id

Department of Fishery Products Technology, Faculty of Agriculture and Fisheries, Muhammadiyah Maluku Utara University
UNiversitas Muhammadiyah Maluku Utara

Umar Tangke


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https://researchid.co/khakafart

RESEARCH, TEACHING, or OTHER INTERESTS

Aquatic Science, Food Science, Multidisciplinary, Ecology, Evolution, Behavior and Systematics
17

Scopus Publications

1684

Scholar Citations

24

Scholar h-index

38

Scholar i10-index

Scopus Publications

  • Distribution of Chlorophyll-a Concentration in Indonesian Waters and Its Relationship with Skipjack Tuna Catch
    Umar Tangke, Musbir Musbir, Mukti Zainuddin
    Egyptian Journal of Aquatic Biology and Fisheries, 2026
  • Study of Chlorophyll-a Concentration Parameters and Their Relationship to the Little Tuna (Euthynnus affinis Cantor, 1849) Catches in the Waters of Ternate Island
    Egyptian Journal of Aquatic Biology and Fisheries, 2026
  • Distribution ofiChlorophyll-auConcentration in Biak Numfor WatersaandmIts Impact onnBullet TunanCatch (Auxis rochei Risso, 1810)
    Katiandagho et al.
    Egyptian Journal of Aquatic Biology and Fisheries, 2024
    This study was conducted with the aim of examining the distribution of chlorophyll-a concentration and its effect on the production of tuna catch to achieve optimum fish catch in the waters of Biak Numfor Regency. This study employed experimental fishing techniques from April to July 2023, collecting data on catch volumes and satellite imagery to assess the distribution of chlorophyll-a concentration based on fishing position plots. The data analysis commenced with GIS techniques to extract and map the temporal distribution of chlorophyll-a in the study area, followed by a composition analysis of the catch. Statistical analyses were then performed to explore the effects and relationships between chlorophyll-a concentration and bullet tuna catch volumes. The findings revealed significant fluctuations in chlorophyll-a concentrations in the waters of Biak Numfor from April to July 2023, with minimum and maximum values of 0.16 and 0.42mg m⁻³, respectively, and an average concentration of 0.32mg m⁻³. Regression analysis demonstrated a significant impact of chlorophyll-a concentration on bullet tuna catch, with an F-value of 82.834 and a significance level of 0.00. The coefficient of determination (R²) was calculated at 0.58, while GAM analysis confirmed a highly significant relationship between the two variables (P<0.0001). Correlation analysis further supported these findings, yielding an r-value of 0.762, indicating a strong positive correlation between chlorophyll-a concentration and bullet tuna catch. Notably, cross-correlation analysis showed that the presence and increase in bullet tuna production in the waters of Biak Numfor were particularly pronounced during the 17th fishing trip.
  • Dynamics of Chlorophyll-a Concentration in Ternate Island Waters and Its Effect on Yellowfin Tuna Production
    Umar Tangke, Syahnul Sardi Titaheluw, Ruslan Laisouw, Halfi Popa, Hamdan Bakari, Martina Suasa, Muhrim Baba, Jabaluddin Namsa, Muhammad Askar Laitupa, Luqman Ali Shah
    Bio Web of Conferences, 2024
    This research was conducted from May to August 2023, with the aim of assessing the distribution of chlorophyll-a concentration and its effect on yellowfin tuna production in Ternate Island waters. The use of experimental fishing methods in collecting research data and data analysis in the form of abundance analysis, exponential regression, cross correlation, and General Aditive Models is expected to answer the research objectives. The results showed that the fluctuation of yellowfin tuna fish catch was similar to the abundance of fish stocks with the highest catch in June (14 229 kg) followed by July (11 142 kg), August (10 764 kg) and May (8 001 kg). The catch of yellowfin tuna fish is spread over a range of chlorophyll-a concentrations between 0.06 mg m-3 to 0.32 mg m-3, with an average monthly chlorophyll-a concentration of 0.22 mg m-3. Chlorophyll-a conditions in Ternate Island waters are quite fluctuating and significantly affect the catch of yellowfin tuna fish with a very strong correlation coefficient of 0.87. The results of General Aditive Models analysis found that the chlorophyll-a concentration value for potential yellowfin tuna fishing areas is &gt; 0.01 mg m-3 with a correlation distance or time leg is in week 15.
  • Evaluation of Yellowfin Tuna Thunnus albacares (Bonnaterre 1788) Stocks in Ternate Waters, North Maluku – Indonesia, Based on Population Dynamics Studies
    Umar Tangke et al.
    Egyptian Journal of Aquatic Biology and Fisheries, 2024
    The tuna fishery resources, particularly yellowfin tuna (YFT), in Ternate waters, North Maluku, Indonesia (fishery management area 715), are currently classified as fully exploited at 0.97% utilization rate of the available potentials, i.e., 31.659 ton/ year. This calls for an attempt to manage the yellowfin tuna in such a way that its existence in the waters can be maintained. Studies on fish population parameters are an effort to obtain scientific information as a recommendation for sustainable fisheries management. This research used experimental fishing by measuring the fish’s length. Then, its population was estimated using FISAT II program, and its spawning potential ratio (SPR) was analyzed using length based-spawning potential ratio (LB-SPR) software. It was expected that this would be able to give the yellowfin tuna current status and condition in Ternate waters. Conducted from May through August 2023, and analyzing 4,904 fish, the research managed to determine the population parameters of yellowfin tuna in Ternate waters. Its asymptotic length (L∞), growth coefficient (K) and t0 were 117.60 cm, 1.4 per year, and 0.17 year, respectively. These were then plotted to obtain a von Bertalanffy growth curve using the formula Lt = 117,60*(1-Exp < sup>-1,4(t-0,17). From the analysis, it was found that the fish total mortality, natural mortality and captive mortality rates were 3.89, 1.55, and 2.34, respectively. Furthermore, it was found that recruitment occurred twice a year, i.e., on March and August at 6.72 and 25.18%, with the Y/R value being 0.039 and B/R value of 0.482. Meanwhile, the spawning potential ratio (SPR) value was 19%, indicating that the utilization rate had been over exploited (SPR< 20%) and it was supported by the fact that the exploitation rate value had been over 0.60 (over fishing) from the Emax value (0.421). Therefore, management is needed to ensure the sustainability of yellowfin tuna stocks.
  • Stock Study of the Skipjack Tuna (Katsuwonus pelamis, L., 1758) in Ternate Island, North Maluku Province, Indonesia
    Umar Tangke et al.
    Egyptian Journal of Aquatic Biology and Fisheries, 2023
    Due to the continuous exploitation of skipjack tuna in the waters of Ternate Island, using active pole and line fishing gears, the skipjack tuna population is suspected to experience degradation in the waters of Ternate Island. Therefore, this research was conducted with the aim of analyzing the status of skipjack tuna populations in the waters of Ternate Island based on population dynamics studies, including parameters of growth, mortality, recruitment and exploitation rate. Experimental fishing methods were implemented to measure fish length which was then analyzed to determine the pattern of growth, mortality, exploitation rate, and yield per recruit. The results showed that the parameter of the skipjack tuna population studied had an asymptote length (L∞) of 77.7 cm, with a growth coefficient of 0.4 per year and a t0 of -0.41. Furthermore, natural mortality (M) was 1.75, while fishing mortality was determined as 1.60, and the current exploitation rate (E) showed a value of 0.48. These values indicate that the management of skipjack tuna in Ternate Island waters is close to optimum conditions (E = 0.5).
  • Estimation of population parameters and exploitation rate of the yellowfin tuna in West Morotai Island waters, Indonesia
    Umar Tangke et al.
    Egyptian Journal of Aquatic Biology and Fisheries, 2022
    The Yellowfin tuna is an economically important fish, representing a leading
  • Population dynamics of eastern little tuna (Euthynnus affinis) in Ternate Waters
    U Tangke, R Laisouw, A Talib, Azis Husen, R Kota, W A Z Umagap
    Iop Conference Series Earth and Environmental Science, 2021
    Eastern little tuna production still depends on stocks from nature, so it is feared that if production continues to increase it will threaten the sustainability of tuna resources, therefore for the sake of sustainable management information is needed on population parameters so that research is carried out from January to April 2021 with the aim of assessing the dynamics of the population of these resources. The data collection procedure was carried out by measuring the total length of the fish caught per fishing trip for 4 months using a meter with a unit (centimeter) cm and an accuracy of 1 mm. The results of the research showed that tuna in the southern waters of Ternate Island had stable growth parameters including maximum length (L∞) 68.25 cm with a growth coefficient (K) of 0.25 per month, t0 -0.20, with total mortality, natural and fishing values respectively. respectively are 0.64, 0.43, 0.21 and the level of exploitation is 0.33 where this value indicates that the rate of exploitation is smaller so it is necessary to increase fishing effort until the optimum value reaches 0.38.
  • Population dynamics analysis of the yellowstrip scad (Selaroides leptolepis, cuvier 1833) in the waters of ternate island
    Umar Tangke et al.
    Egyptian Journal of Aquatic Biology and Fisheries, 2021
    Umar Tangke 1 , Aziz Husen 1 , Rugaya Serosero 2 , Raismin Kota 3 , Ruslan Laisouw 4 , Zubair Saing 5, * 1 Faculty of Agriculture, Universitas Muhammadiyah Maluku Utara, Ternate, Indonesia 2 Faculty of Fisheries and Marine, Universitas Khairun, Ternate, Indonesia 3 Lombok Marine Bio Industry Center LIPI, Lombok-Indonesia 4 Faculty of Mathematics and Science, Universitas Muhammadiyah Maluku Utara, Ternate, Indonesia 5 Faculty of Engineering, Universitas Muhammadiyah Maluku Utara, Ternate, Indonesia * Corresponding Author: zubairsaing@ummu.ac.id
  • Variability of chlorophyll-a concentration relation to fish catch of Indian mackerel in West Halmahera waters
    U Tangke, R Laisouw, W A Umagap, Darmawaty
    Iop Conference Series Earth and Environmental Science, 2021
    The presence of chlorophyll-a is an indicator of water fertility, where the high chlorophyll-a content will be followed by the presence of zooplankton which will then affect other aquatic organisms that form the food chain. The interaction of chlorophyll-a concentration on the presence of mackerel in West Halmahera waters is unknown, so this study was carried out with the aim of examining the relationship between chlorophyll-a concentration in West Halmahera waters and mackerel catch. The use of experimental fishing methods from May to July 2020 and non-linear regression analysis and Generalized Additive Model (GAM) are expected to provide an overview of the relationship between the two research variables. The results showed that the distribution of Indian Mackerel was more in coastal areas with a chlorophyll-a concentration distribution of 0.18 - 0.39 mg/m3 which played a major role in determining the variability of the quantitative distribution of mackerel (α &lt; 0.05) and positively correlated with a value of r = 0.819 and these results supported by predictions using GAM, where the potential fishing area for mackerel in West Halmahera waters is at a chlorophyll-a concentration value of aboutb 0.2 - 0.4 mg/m3.
  • Organoleptic Quality of Tuna Porridge Canned with Fortified Tuna Bone Meal
    U Tangke, R A Daeng, B Katiandagho
    Iop Conference Series Earth and Environmental Science, 2021
  • Distribution of sea surface temperature and chlorophyll-a concentration its correlation with small pelagic fish catch in Dodinga Bay
    U Tangke, B Senen
    Iop Conference Series Earth and Environmental Science, 2020
  • Sea surface temperature and chlorophyll-a condition of skipjack tuna (Katsuwonus Pelamis) catching area in Ternate Island marine waters
    U Tangke, F D Silooy, Rochmady, Z Saing
    Journal of Physics Conference Series, 2020
  • Review of ikan tuna kering kayu processing, canning systems and proximate analysis results in ppupik program of rumah ikan faculty agriculture, muhammadiyah maluku utara university
    Proceedings of the International Conference on Industrial Engineering and Operations Management, 2020
  • Distribution of day fish in ternate city water based on chlorophyll-a
    Proceedings of the International Conference on Industrial Engineering and Operations Management, 2020
  • The Influence of Using Bait Types to the Number and Composition of Fishing Traps Catch in South Ternate Waters
    Umar Tangke, Sitkun Deni, Asri Aunaka
    Iop Conference Series Earth and Environmental Science, 2018
  • A population dynamic aspect of selaroides leptolepis in the coastal waters of south ternate island, indonesia
    Aacl Bioflux, 2018

RECENT SCHOLAR PUBLICATIONS

  • Manajemen sumber daya perikanan menuju keberlanjutan
    AN Susanto, F Marasabessy, J Tahapary, U Tangke, N Ikhsan, ...
    Kamiya Jaya Aquatic , 2026
    2026
  • Study of Chlorophyll-a Concentration Parameters and Their Relationship to the Little Tuna (Euthynnus affinis Cantor, 1849) Catches in the Waters of Ternate Island
    A Bafagih, IW Laitupa, MF Sigui, R Ikra, U Tangke, S Muhammad
    Egyptian Journal of Aquatic Biology and Fisheries 30 (1), 2923-2938 , 2026
    2026
  • Improving the Quality of Smoked Fish Products to Ensure the Existence of the Polkhastar Group May Blessings Come Through Diversification of Fishery Products in the Digital Age
    RA Daeng, U Tangke, A Lating, PF Batibae, IA Naim, SU Ube
    JURNAL SAINS SOSIAL DAN HUMANIORA (JSSH) 5 (2), 13-19 , 2025
    2025
  • The Use of GPS in Tuna Fishing Operations by the Rimoi Fishermen's Group Towards Efficient and Effective Tuna Fishing Operations
    U Tangke, A Bafagih, R Laisouw, S Jainudin, AMH Saleh, M Yusuf
    JURNAL SAINS SOSIAL DAN HUMANIORA (JSSH) 5 (2), 29-35 , 2025
    2025
  • Public Perception of Climate Change and Its Impact on Small Pelagic Fish Resources
    U Tangke, H Hamka, R Laisouw, GW Lailossa
    Agrikan Jurnal Agribisnis Perikanan 18 (2), 491-498 , 2025
    2025
  • Analysis of Population Parameters of Yellowtail Scad Caught in Kasuba Village, South Maba
    U Tangke, A Talib, IW Laitupa
    Agrikan Jurnal Agribisnis Perikanan 18 (1), 381-386 , 2025
    2025
  • Condition of Coral Reefs in Kiya Village
    SS Titaheluw, U Tangke, M Hasan, F Tan
    JURNAL BIOSAINSTEK 7 (2), 98-104 , 2025
    2025
  • Distribution of Chlorophyll-a Concentration in Biak Numfor Waters and Its Impact on Bullet Tuna Catch (Auxis rochei Risso, 1810)
    B Katiandagho, U Tangke, ANA Massiseng
    Egyptian Journal of Aquatic Biology and Fisheries (EJABF) 28 (6), 2531 – 2550 , 2024
    2024
    Citations: 3
  • Optimization of Yellowfin Tuna Production in Ternate Island Waters Using Geographic Information System
    H Mustafa, U Tangke, D Darmawaty
    JURNAL BIOSAINSTEK 6 (2), 1-16 , 2024
    2024
  • Estimation of Potential and Utilization Level of Skipjack Fish in Dufa Dufa Fish Landing Base (PPI), Ternate City
    A Ridwan, U Tangke, SS Titaheluw
    JURNAL BIOSAINSTEK 6 (2), 23-38 , 2024
    2024
  • Dasar-dasar penangkapan Ikan
    J Ahmad, U Tangke, IA Kadir, M Renhoran, A Husen, F Marasabessy, ...
    Kamiya Jaya Aquatic , 2024
    2024
    Citations: 1
  • Chlorophyll-a Distribution in Relation to Yellowfin Tuna Catches in Morotai Island Seas
    U Tangke, IW Laitupa
    Agrikan Jurnal Agribisnis Perikanan 17 (1), 433-438 , 2024
    2024
    Citations: 1
  • Perikanan Tangkap
    A Jufri, MN Findra, L Tjarles, TL Wulandari, M Nur, D Rosalina, MN Ihsan, ...
    Kamiya Jaya Aquatic , 2024
    2024
  • Evaluation of Yellowfin Tuna Thunnus albacares (Bonnaterre 1788) Stocks in Ternate Waters, North Maluku-Indonesia, Based on Population Dynamics Studies.
    U Tangke, SS Titaheluw, R Laisouw, H Popa, H Bakari, M Suasa, M Baba, ...
    Egyptian Journal of Aquatic Biology & Fisheries 28 (2) , 2024
    2024
    Citations: 6
  • Tinjauan Sumber Suplai Dan Mutu Ikan Yellowfin Tuna Yang Didaratkan Di Pelabuhan Perikanan Nusantara Ternate
    H Fokatea, U Tangke, R Laisouw
    JURNAL BIOSAINSTEK 6 (1), 45-60 , 2024
    2024
  • Analisis Penanganan Ikan Madidihang di Pelabuhan Perikanan Nusantara Ternate Provinsi Maluku Utara
    R Lamadrasi, U Tangke, R Laisouw
    JURNAL BIOSAINSTEK 6 (1), 12-32 , 2024
    2024
  • Pengaruh Implementasi Kepmen No 57 Tahun 2014 Terhadap Produksi Ikan Tuna yang di daratkan di Pelabuhan Perikanan Nusantara Ternate
    SB Usia, JWC Karuwal, U Tangke
    JURNAL BIOSAINSTEK 6 (1), 1-11 , 2024
    2024
  • Size Structure and Utilization Rate of White Snapper (Lates calcarifer., Bloch 1790) in the Waters of Sil Village, East Halmahera District
    S Asirun, U Tangke, A Bafagih, RA Daeng
    JURNAL SAINS SOSIAL DAN HUMANIORA (JSSH) 4 (2), 20-29 , 2024
    2024
  • Distribution of Chlorophyll-a Concentrations in Ternate Island Waters Influencing the Productivity of Yellowfin Tuna (Thunnus albacares)
    U Tangke, A Talilb, SS Titaheluw, R Laisouw, MA Laitupa, D Namsa, ...
    Journal of Hunan University Natural Sciences 51 (12) , 2024
    2024
  • Dynamics of Chlorophyll-a Concentration in Ternate Island Waters and Its Effect on Yellowfin Tuna Production
    U Tangke, SS Titaheluw, R Laisouw, H Popa, H Bakari, M Suasa, M Baba, ...
    BIO Web of Conferences 104, 00046 , 2024
    2024
    Citations: 3

MOST CITED SCHOLAR PUBLICATIONS

  • Ekosistem padang lamun (manfaat, fungsi dan rehabilitasi)
    U Tangke
    Agrikan: Jurnal Agribisnis Perikanan 3 (1), 9-29 , 2010
    2010
    Citations: 194
  • A population dynamic aspect of Selaroides leptolepis in the coastal waters of South Ternate Island, Indonesia
    U Tangke, I Sangadji, R Rochmady, S Susiana
    Aquaculture, Aquarium, Conservation & Legislation 11 (4), 1334-1342 , 2018
    2018
    Citations: 116
  • Sebaran suhu permukaan laut dan klorofil-a pengaruhnya terhadap hasil tangkapan yellowfin tuna (Thunnus albacares) di Perairan Laut Halmahera bagian selatan
    U Tangke, JC Karuwal, M Zainuddin, A Mallawa
    Jurnal IPTEKS Pemanfaatan Sumberdaya Perikanan 2 (3) , 2015
    2015
    Citations: 81
  • ANALISIS HUBUNGAN KARAKTERISTIK OSEANOGRAFI DAN HASIL TANGKAPAN YELLOWFIN TUNA (THUNNUS ALBACARES) DI PERAIRAN LAUT BANDA
    MZ Umar Tangke, Ahcmar Mallawa
    AGRIKAN 4 (Oktober 2011), 1-14 , 2011
    2011
    Citations: 67
  • Analisis Hubungan Suhu Permukaan Laut, Salinitas, Dan Arus Dengan Hasil Tangkapan Ikan Tuna Di Perairan Bagian Barat Pulau Halmahera
    U Tangke, JWC Karuwal, A Mallawa, M Zainuddin
    Jurnal IPTEKS Pemanfaatan Sumberdaya Perikanan 3 (5) , 2016
    2016
    Citations: 64
  • Parameter populasi dan tingkat eksploitasi ikan tongkol (Euthynnus affinis) di perairan Pulau Morotai
    U Tangke
    Agrikan: Jurnal Agribisnis Perikanan 7 (1), 74-81 , 2014
    2014
    Citations: 54
  • Hubungan antara suhu permukaan laut dan hasil tangkapan ikan julung di perairan pulau ternate provinsi maluku utara
    U Tangke
    2017
    Citations: 53
  • Pemetaan daerah penangkapan ikan madidihang (Thunnus albacares) dan ikan cakalang (Katsuwonus pelamis) di Perairan Maluku Utara
    U Tangke, S Deni
    Agrikan: Jurnal Agribisnis Perikanan 6 (Supplement), 1-17 , 2013
    2013
    Citations: 53
  • ANALISIS POTENSI DAN TINGKAT PEMANFAATAN SUMBERDAYA IKAN KUWE (Carangidae sp) DI PERAIRAN LAUT FLORES PROVINSI SULAWESI SELATAN
    U Tangke
    AGRIKAN 5 (Oktober 2010), 23 , 2010
    2010
    Citations: 52
  • ANALISIS PARAMETER OSEANOGRAFI HUBUNGANNYA DENGAN HASIL TANGKAPAN IKAN TUNA SIRIP KUNING DI PERAIRAN MALUKU UTARA
    MZ Umar Tangke, John W. Ch. Karuwal, Achmar Mallawa
    Amanisal 5 (1), 1-9 , 2016
    2016
    Citations: 43
  • ANALISIS HUBUNGAN FAKTOR OSEANOGRAFI DENGAN HASIL TANGKAPAN IKAN TENGGIRI (Scomberamorus spp) DIPERAIRAN KEC. LEIHITU KAB. MALUKU TENGAH
    U Tangke
    AGRIKAN 5 (Oktober 2012), 1-11 , 2012
    2012
    Citations: 43
  • Estimation of population parameters and exploitation rate of the yellowfin tuna in West Morotai Island waters, Indonesia.
    U Tangke, S Deni, R Laisouw
    Egyptian Journal of Aquatic Biology & Fisheries 26 (2) , 2022
    2022
    Citations: 40
  • PENGARUH WAKTU DAN SPL TERHADAP JUMLAH HASIL TANGKAPAN IKAN JULUNG (Hemirhamphus far)
    U Tangke
    AGRIKAN 6 (Oktober 2013), 1-5 , 2013
    2013
    Citations: 40
  • Pemanfaatan sistem informasi perikanan dalam pengelolaan sumberdaya
    U Tangke
    Agrikan: Jurnal Agribisnis Perikanan 4 (2), 52-59 , 2011
    2011
    Citations: 40
  • Population dynamics analysis of the yellowstrip scad (Selaroides leptolepis, Cuvier 1833) in the waters of Ternate Island
    U Tangke
    Egyptian Journal of Aquatic Biology and Fisheries , 2021
    2021
    Citations: 38
  • Stock Study of the Skipjack Tuna (Katsuwonus pelamis, L., 1758) in Ternate Island, North Maluku Province, Indonesia.
    U Tangke, RA Daeng, A Husen, R Laisouw, MH Sultan, H Usman
    Egyptian Journal of Aquatic Biology & Fisheries 27 (4) , 2023
    2023
    Citations: 34
  • Potensi dan tingkat pemanfaatan ikan layang (Decapterus sp) di perairan Pulau Ternate. Agrikan: Jurnal Agribisnis dan Perikanan. 9 (2): 1–10
    MB Sangaji, U Tangke, D Namsa
    2016
    Citations: 34
  • Parameter populasi dan tingkat eksploitasi ikan tongkol (Euthynnus affinis) di perairan Pulau Morotai. Agrikan: Jurnal Agribisnis dan Perikanan. 7 (1): 74-81
    U Tangke
    2014
    Citations: 34
  • ANALISIS KELAYAKAN USAHA PERIKANAN TANGKAP MENGGUNAKAN ALAT TANGKAP GILL NET DAN PURSE SEINE DI KECAMATAN LEIHITU KABUPATEN MALUKU TENGAH PROVINSI MALUKU
    U Tangke
    AGRIKAN 4 (Mei 2011), 1-14 , 2011
    2011
    Citations: 34
  • Perencanaan disain pengelolaan sumberdaya perikanan berbasis sistem informasi manajemen
    U Tangke
    Agrikan: Jurnal Agribisnis Perikanan 3 (2), 15-22 , 2010
    2010
    Citations: 34