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Home > Archives > Vol 19, No 2 (2021)

Vol 19, No 2 (2021)

Oktober 2021

Table of Contents

Articles

Heavy Metal Content in Sediment and Hora Shell (Cerithidea obtusa) in Panipahan Waters, Rokan Hilir, Riau
10.31258/jnat.19.2.29-36
Indra Wariski, Yusni Ikhwan Siregar, Bintal Amin
PDF
29-36
Utilization of Tofu Liquid Waste as Organic Fertilizer on the Growth and Production of Paddy Rice Plants (Oryza sativa L)
10.31258/jnat.19.2.57-64
Wili Heriko, Tri Nopsagiarti, Angga Pramana
PDF
57-64
Abundance and Distribution Patterns of Gastropods in the Intertidal Bay of Kambang Lengayang Sub-District, Southern Coastal District, West Sumatera
10.31258/jnat.19.2.37-42
Ichwanul Harif, Afrizal Tanjung, Elizal Elizal
PDF
37-42
Genetic Change of Pharella acutidens Influenced by Pb and Cd Metals in Rupat Strait Waters
10.31258/jnat.19.2.43-50
Tri Vani Bernadetha Ginting, Syafruddin Nasution, Irwan Effendi
PDF
43-50
Analysis of Microplastics on Sediments in the Waters of Selat Panjang of Tebing Tinggi Subdistrict, Meranti Islands Regency, Riau Province
10.31258/jnat.19.2.51-56
Ridwan Saiful Basri Pasaribu, Syahril Nedi, Elizal Elizal
PDF
51-56