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    Wyświetlanie 1-6 z 6
    Tytuł:
    Upwelling session in Indonesia waters
    Autorzy:
    Purba, Noir P.
    Khan, Alexander M. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1076677.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    coastal area
    economic exclusive zone
    periodic monsoon
    satellite data
    upwelling
    Opis:
    The aim of this research was to analyze monthly sea surface temperature (SST) and chlor-a satellite data for 16 years from 2003 in an area from south Java to north Papua. The results show that the temporal and spatial pattern of SST and chlor-a distribution strongly was related to the monsoonal pattern. The upwelling session starts from May and ends in the October, in the south-east monsoon season. The lowest SST (25-30 °C) and the highest chlor-a (2.23 mg/l) is found in August in the south-east monsoon season. In addition, the largest upwelling area occurs in July, and ranges within 790,221 km2 of size.
    Źródło:
    World News of Natural Sciences; 2019, 25; 72-83
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Economic Contribution of Southern West Java Province Marine Fisheries
    Autorzy:
    Rizal, Achmad
    Nurruhwati, Isni
    Khan, Alexander M. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1075704.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Economic
    Fisheries
    Input-Output
    Marine
    Southern West Java Province
    Opis:
    Economic development has negative impacts on the environment and spurs an upward trend of environmental degradation and resource depletion. However, as incomes increase, the structure of the economy may change, shifting from a resource-intensive economy to a serviceand knowledge-based technology-intensive economy. Marine Fisheries development is one of the economic’s sector that contribute on regional economic growth in west java province. This paper present the Input Output Analysis to show economic contribution of Marine fisheries of southern west java province. Total contribution (direct and indirect effect) of marine fisheries in the Southern West Java economy range from 12.7%, 13.1% to 14.6% in terms of value added, employment and production value. The direct economic contribution in 2017 for the first two measures is 5.5% and 7.3%. Recommendation as consequences of this finding are investment should be alocated to fish culture on high value fish species. Concerning investment on marine fisheries resources, it needs increasing financial institution supporting.
    Źródło:
    World Scientific News; 2019, 119; 204-217
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Relationship between Length and Mouth Opening of Skipjack Tuna (Katsuwonus pelamis) in the Waters of Palabuhanratu Sukabumi Regency
    Autorzy:
    Ridwan, Monika
    Khan, Alexander M. A.
    Zahidah, Zahidah
    Hamdani, Herman
    Powiązania:
    https://bibliotekanauki.pl/articles/1031887.pdf
    Data publikacji:
    2020
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Katsuwonus pelamis
    Palabuhanratu waters
    correlation value
    length-mouth opening relationship
    skipjack tuna
    Opis:
    Skipjack tuna (Katsuwonus pelamis (Linnaeus, 1758)) is one of the main commodities of Palabuhanratu capture fisheries with a percentage of 14% or 422.701 kg of total capture fisheries production in 2017. The purpose of this research is to analyze the correlation between length and mouth opening of skipjack tuna (Katsuwonus Pelamis) in the waters of Palabuhanratu Sukabumi Regency. The sample was collected in June until August 2019 at the Palabuhanratu Fishing Port, Sukabumi Regency. Skipjack tuna observed during the research had a total length range from 250 until 730 mm FL. The pattern of length and opening mouth relationships of skipjack tuna can be seen from the regression and correlation values. The results obtained were collected combined Y = 0.8064x - 0.2283 and R2 = 0.7786. Correlation value of the length and mouth opening relationship of skipjack tuna was 0.88. The level of length-mouth opening relationship of skipjack tuna is highly interrelated.
    Źródło:
    World News of Natural Sciences; 2020, 30, 2; 220-231
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of Fishery Sectors Linkages Toward Other Sectors In Batubara District of North Sumatera Province, Indonesia
    Autorzy:
    Rizal, Achmad
    Pasaribu, R. H. R.
    Khan, Alexander M. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1076674.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Batubara District
    Linkage
    fishery
    growth
    Opis:
    This research aims to analyze the growth rate, and the role of the fisheries sector also to analyze the linkage between the fisheries sector and other sectors in the economic growth rate in the Batubara district. The results of research can be used by local communities and the government as material consideration in determining a policy of management of the economic sector, especially the fisheries sector. This research was carried out from April 2017 to April 2018. The methods utilized are regional superiority analysis, klassentypology analysis, and correlation analysis. The results showed that LQ. LI and SI values of the fisheries sector of Batubara District tend to increase in value from year to year and the fisheries sector itself is in a state of growth. Still, Typology Klassen analysis reveals that the fisheries sector of Batubara district is in the second quadrant. This means that it is advanced but depressed. Moreover, the role of the fisheries sector to other sectors is in the provision of production factors and capital base due to the economy factors built-in to the same space. Herein, the result of correlation analysis of the fisheries sector with other sectors is 0,9. This shows that there is a very strong linkage between the fisheries sector and other sector values in the Batubara District.
    Źródło:
    World News of Natural Sciences; 2019, 25; 31-43
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Size Distribution and Sex Ratio of the Blue Swimming Crab (Portunus (Portunus) pelagicus Linnaeus, 1758) Commodities in Gebang Mekar Village, Cirebon Regency, West Java, Indonesia
    Autorzy:
    Shabrina, Nabilla
    Khan, Alexander M. A.
    Gumilar, Iwang
    Supriadi, Dedi
    Powiązania:
    https://bibliotekanauki.pl/articles/1031889.pdf
    Data publikacji:
    2020
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Portunus pelagicus
    blue swimming crab
    carapace width
    gebang mekar village
    sex ratio
    Opis:
    Blue swimming crab (Portunus (Portunus) pelagicus (Linnaeus, 1758)) is included as one of the fishery commodities that has high economic value and becomes one of the primadonnas in the field of fisheries. Besides in the local market, the blue swimming crabs can be one of the high levels and promising export commodities. The purpose of this research is to determine the size distribution and sex ratio from blue swimming crab in Java Sea near Gebang Mekar Village, Cirebon Regency. This research was conducted in Gebang Mekar Village, Cirebon Regency at September 2019 – October 2019 using the case study method with descriptive analysis and quantitative approach. Primary data used are the carapace width of blue swimming crab, amount of male and female blue swimming crab and female blue swimming crab containing egg. The results of the research that blue swimming crab catched by crab gillnet in Java Sea near Gebang Mekar Village, Cirebon Regency have sex ratio 1:1 and the growth of male crabs in these waters was faster than that of female crabs.
    Źródło:
    World News of Natural Sciences; 2020, 30, 2; 232-242
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Marine Debris Pathway Across Indonesian Boundary Seas
    Autorzy:
    Purba, Noir P.
    Faizal, Ibnu
    Cordova, Muhammad R.
    Abimanyu, Amarif
    Afandi, Najma K. A.
    Indriawan, Dena
    Khan, Alexander M. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1839151.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    floating debris
    Indonesia Throughflow
    marine pollution
    wind
    ocean current
    Opis:
    The complex circulation for both atmospheric and ocean affects the pathways of floating marine debris (MD). The aim of this research was to define the MD trajectories in the Indonesian boundary seas. The Lagrangian particle method was applied with oceanographic factors and debris classes based on 1 to 3% windage class. The simulation was applied during the Northwest and Southeast Monsoon period. On the basis of the obtained findings, the debris trajectory patterns were indicated to vary in the two monsoons. In the northern part of Indonesia, all neighbouring countries were affected, especially those near the boundaries. In the southern part of Indonesia, most of the debris headed west towards the Indian Ocean. MD was mostly transported by the ocean currents and monsoonal wind and ended up in the coastal area. Some debris was also still floating in the open ocean after three months. This study concluded that marine litter not only polluted Indonesia water, but also the neighbouring countries.
    Źródło:
    Journal of Ecological Engineering; 2021, 22, 3; 82-98
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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