Vol. 4 No. 1 (2021): April

Published: 22-04-2021

Articles

  • ANALYSIS OF NITRATE, PHOSPHATE AND SILICATE CONTENT AND THEIR EFFECTS ON PLANKTONIC ABUNDANCE IN THE ESTUARY WATERS OF BATANG ARAU OR PADANG CITY WEST SUMATRA PROVINCE

    Weni Indah Wahyuni, Bintal Amin, Sofyan Husein Siregar (Author)
    1-12
    DOI: https://doi.org/10.31258/
  • ANALYSIS OF MICROPLASTIC CONTENT IN LOKAN (Geloina erosa) IN NORTH BEACH WATERS OF BENGKALIS ISLAND, RIAU PROVINCE

    Nian Sari, Bintal Amin, Dessy Yoswaty (Author)
    13-20
    DOI: https://doi.org/10.31258/
  • TOTAL OIL CONTENT AND EPIPHYTIC DIATOM DENSITY IN SEAGRASS LEAVES Enhalus acoroides AT PANDARATAN BEACH TAPANULI TENGAH REGENCY NORTH SUMATERA PROVINCE

    Sarah Puspita, Sofyan Husein Siregar, Syahril Nedi (Author)
    24-28
    DOI: https://doi.org/10.31258/
  • EFFECT OF NITRATE AND PHOSPATE CONCENTRATION ON Spirulina platensis WITH INDOOR SCALE

    Safira Mutia, Syahril Nedi, Elizal Elizal (Author)
    29-35
    DOI: https://doi.org/10.31258/
  • ANALYSIS OF METAL Pb AND Cu CONTENT IN SEAGRASS (Sargassum sp) IN BAYUR BAYS OF WEST SUMATERA PROVINCE

    Yuliza Fitri, Yusni Ikhwan Siregar, Bintal Amin (Author)
    36-43
    DOI: https://doi.org/10.31258/
  • CONCENTRATION OF WATER POLLUTION INDICATORS BACTERIA IN SIRIH PADANG SUMATERA BARAT

    Gilang Ferdana, Nursyirwani Nursyirwani, Bintal Amin (Author)
    44-53
    DOI: https://doi.org/10.31258/
  • RELATIONSHIP OF NITRATE AND PHOSPHATE CONCENTRATION ON PHYTOPLANKTON PRIMARY PRODUCTIVITY IN DUMAI RIVERS OF RIAU PROVINCE

    Syafrizal Syafrizal, Irvina Nurrachmi, Efriyeldi Efriyeldi (Author)
    56-64
    DOI: https://doi.org/10.31258/
  • EFFECT OF DIFFERENT TYPES OF FERTILIZER ON THE GROWTH OF MARINE PHYTOPLANKTON POPULATION Chlorella vulgaris

    M. Fauzan, Sofyan Husein Siregar, Syafruddin Nasution (Author)
    62-69
    DOI: https://doi.org/10.31258/
  • MICROPLASTIC DISTRIBUTION IN SEDIMENTS IN COASTAL OF PARIAMAN CITY, WEST SUMATERA PROVINCE

    Kalfin Putra Triau Sianturi, Bintal Amin, Musrifin Galib (Author)
    73-79
    DOI: https://doi.org/10.31258/
  • COMMUNITY STRUCTURE OF PHYTOPLANKTON AND CHLOROPHYLL-α CONCENTRATION IN THE SUNGAI MESJID VILLAGE DUMAI RIAU PROVINCE

    Rafiq Prima Nugraha, Irvina Nurrachmi, Irvina Nurrachmi, Sofyan Husein Siregar (Author)
    80-87
    DOI: https://doi.org/10.31258/