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    Wyświetlanie 1-2 z 2
    Tytuł:
    The Determination of Shortfin Scad (Decapterus sp.) Potential Fishing Area with Chlorophyll-a Distribution in Pekalongan Sea, Central Java, Indonesia
    Autorzy:
    Wicaksono, Viga Ananda
    Hasan, Zahidah
    Gumilar, Iwang
    Dewanti, Lantun P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1075694.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Chlorophyll-a
    Fishing ground
    Pekalongan
    Shortfin Scad
    Opis:
    The fishing ground can be determined by detecting oceanography parameters in seawater area. One of the oceanographic parameters that can be used is chlorophyll-a. This research aims to analyze the relationship between chlorophyll-a and total catch of shortfin scad along with potential map areas for fishing shortfin scad (Decapterus sp.) in Pekalongan seawater. The research was conducted in two stages, which are field data collection in January and downloading and processing satellite image data in February. This research used the survey method with spatial analysis. Primary spatial data used is the distribution of chlorophyll-a and data of shortfin scad fishing production. The study shows an average concentration of chlorophyll-a from 2013-2017 in Pekalongan seawater ranges around 0,16 - 1,55 mg/m3. The result of linear regression test shows that chlorophyll-a has a role as one of the factors that influence the total catch of shortfin scad in Pekalongan seawater, East Java by 23%. Other factors influence the remaining 77%. Based on the assessment of fishing ground, there are 25 potential coordinate points of shortfin scad fishing area in Pekalongan seawater that can be categorized as a potential fishing ground.
    Źródło:
    World Scientific News; 2019, 119; 111-124
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of the dynamics of coastal landform change based on the integration of remote sensing and gis techniques: implications for tidal flooding impact in Pekalongan, Central Java, Indonesia
    Autorzy:
    Yulianto, Fajar
    Suwarsono, Suwarsono
    Maulana, Taufik
    Khomarudin, Muhammad Rokhis
    Powiązania:
    https://bibliotekanauki.pl/articles/1051206.pdf
    Data publikacji:
    2019-09-30
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    Coastal landform
    tidal flooding
    remote sensing – GIS
    Pekalongan
    Central Java
    Indonesia
    Opis:
    Coastal landforms are located in the interface zone between atmosphere, ocean and land surface systems formed by the geomorphic process of erosion, depositional, and subsidence. Studying the dynamics of coastal landform change is important for tracing the relationship between coastal landform changes and tidal flooding in the coastal areas of Pekalongan, Indonesia. The method of integrating remote sensing data with geographic information system (GIS) techniques has been widely used to monitor and analyze the dynamics of morphology change in coastal landform areas. The purpose of this study is to map the dynamics of landform change in the study area from 1978 to 2017 and to analyze its implications for the impact of tidal flooding. The results of the mapping and change analysis associated with coastal landforms can be classified into four landform types: beach, beach ridge, backswamp and alluvial plain. Changes in coastal morphology and landform topography affected by land subsidence and changes in land use/land cover have contributed to the occurrence of tidal flooding in the study area. Beach ridges perform an important role as natural levees which hold back and prevent the entry of seawater at high tide in coastal areas. A limitation of this study is that, as it focuses only on the physical aspects of coastal landform characteristics for one of the factors causing tidal flooding.
    Źródło:
    Quaestiones Geographicae; 2019, 38, 3; 17-29
    0137-477X
    2081-6383
    Pojawia się w:
    Quaestiones Geographicae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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