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    Wyświetlanie 1-4 z 4
    Tytuł:
    The Eco Friendly Level of Mini Purse Seine Based on Catch Decapterus spp in Pekalongan Nusantara Fishing Port, Central Java, Indonesia
    Autorzy:
    Prasetyo, Adi
    Hamdani, Herman
    Astuty, Sri
    Dewanti, Lantun P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1109100.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Decapterus spp.
    Eco friendly
    Mini purse seine
    Opis:
    Excessive exploitation of fish resources with the use of fishing gear that is not selective and not eco-friendly will have an impact on the sustainability of capture fisheries, and cause damage to fish resources and marine ecosystems. The mini purse seine is a fishing gear that is most widely used by fishermen in the sea of the north coast of Java. Research was undertaken the Nusantara Fisheries Port (PPN), Pekalongan. The purpose of this research is to analyze the level of eco friendliness of mini purse seine fishing based on the main catch, which is (Decapterus spp.). The research method used a survey method at PPN Pekalongan and follows the operation of 3 units of mini purse seine working the fishing ground on the North Coast of Central Java, in January-February 2018. Data taken included total catches, catch composition, diversity index and the size of the fork length. Data analysis used the proportion of the main catch and by-catch, as well as the proportion of fish worth catching and not catching. The results showed that the mini purse seine fishing gear caught 6 species with a total catch of 35,633 with a weight of 4,600 kg. The main catch is 51%, compared to 49% by-catch. The length of the main catch fish worth catching is 46% of all fish measured. Diversity index value is 1.42 (high diversity), based on a research mini purse seine operated in the the Java Sea. The results of our work indicate that mini purse seine fishing is not eco friendly - as seen from the criteria of catch composition.
    Źródło:
    World News of Natural Sciences; 2018, 21; 42-52
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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:
    Length Weight Relationship and Condition Factor of Indo-Pacific King Mackerel (Scomberomorus guttatus) in Pangandaran Water, West Java, Indonesia
    Autorzy:
    Tarigan, Amsal Loudikia
    Hamdani, Herman
    Yustiati, Ayi
    Dewanti, Lantun P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1076725.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Indo-Pacific
    Pangandaran water
    Scomberomorus guttatus
    condition factor
    length-weight relationship
    Opis:
    Scomberomorus guttatus is an economical valuable fish in Pangandaran, West Java, Indonesia. Indeed, the catch of large pelagic fish in Pangandaran water is dominated by Scomberomorus guttatus at around 42.30% of the total production of large pelagic fish in 2015-2017. The purpose of this research is to analyze length-weight relationship and condition factors of Scomberomorus guttatus. The samples were collected in August and September 2018 at Cikidang Fishing Port, Pangandaran Regency, West Java. The Scomberomorus guttatus observed during the research had total length ranging from 205 to 685 mmTL, and the length-weight relationship of Scomberomorus guttatus in Pangandaran water was indicated by the equation W=〖0,0000038L〗^3.0839. Furthermore, the growth pattern of Scomberomorus guttatus is positive allometric (b = 3.0839), meaning that weight growth is faster than length growth, while its condition factor range from 0.52 to 1.54 (average - 1.00 ±0.08).
    Źródło:
    World News of Natural Sciences; 2019, 24; 199-208
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Distribution of Macro Debris at Pangandaran Beach, Indonesia
    Autorzy:
    Purba, Noir P.
    Apriliani, Izza M.
    Dewanti, Lantun P.
    Herawati, Hetti
    Faizal, Ibnu
    Powiązania:
    https://bibliotekanauki.pl/articles/1177434.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Beach litter
    Citumang river
    Pangandaran beach
    fishing gear
    marine pollution
    ocean currents
    plastics packaging
    Opis:
    This research was to assest of marine debris in Pangandaran beach. Marine debris sampled from 2016 and 2017 around west Pangandaran using Ocean Conservancy (OC) form to find information about distribution, abundance, and types. The result is debris on the West coast of Pangandaran is originally comes from settlements, tourists, traders, and fishermen. The highest accumulation of marine debris happened in October with total weight 44.385 kilos, while the lowest accumulation happened in May with total weight 38 kilos. this is due to Citumang River had overflowed due to heavy rain and then was swept away along the coastline and piled up an area near the bay in October. In May and August the debris which most find is cigarette with the percentage 28% in May and 35% in August. While in October the debris which most find is a plastic bag with percentage 33%. From six types of debris, the dominant debris per types as follows: Most likely to find items is cigarette butts, Fishing gear is rope, Packaging material is other plastic/foam packaging, Personal hygiene is diapers, Other trash is cigarettes lighters, and Tiny trash less than 2.5 cm is foam pieces. The specific debris at Pangandaran beach is the fisheries tools like a rope and net, the rope embedded in the ground and make it hard to take out. One of the factor the large number of debris in Pangandaran is tourism activity and fisheries activity. In addition, the study indicates that there is a strong relationship between human activities and spreading of debris.
    Źródło:
    World Scientific News; 2018, 103; 144-156
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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