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Wyświetlanie 1-2 z 2
Tytuł:
The Influence of Tidal on the Nesting Activity of Green Turtle (Chelonia mydas (Linnaeus, 1758)) at Pangumbahan Beach, Sukabumi Regency, West Java, Indonesia
Autorzy:
Adiluhung, M. Boy
Riyantini, Indah
Sunarto, Sunarto
Faizal, Ibnu
Powiązania:
https://bibliotekanauki.pl/articles/1193344.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Chelonia mydas
Green Turtle
Nesting Activities
Pangumbahan
Tides
Opis:
Green turtles (Chelonia mydas (Linnaeus, 1758)) take advantage of the sand beach area as a stopover and carry out biological activities such as nesting and laying eggs. Pangumbahan Beach is one of the green turtle conservation places which is directly adjacent to the Indian Ocean. Tides affect physical processes such as the flushing of seawater on to the coast due to waves and flushing of water masses in estuaries, lagoons, and bays. This research aims to determine the effect of tides on the Green Turtle's nesting activity (Chelonia mydas). This research was conducted in July-September 2020, using observation and survey methods, and was analyzed descriptively. The data used include beach width, beach slope, tidal data, and landing data for Green Turtle (Chelonia mydas). A type of beach with a slope of 1.77° - 5.77° with an overall average of 3.4°, the Formzahl number value obtained at tide is 0.55, indicating the mixed type tidal type tends to double daily (Mixed, predominantly semi-diurnal tide). The results of this study indicate that the landing times and the formation of green turtle nests (Chelonia mydas) do not correlate with rising tides. The average effect of tides on green turtle egg-nesting activity (Chelonia mydas) was 0.111%, while the tidal effect on green turtle nesting activity (Chelonia mydas) was 4.09%. The highest frequency of Green Turtle (Chelonia mydas) nesting activity occurred between 22:00 and 02:00.
Źródło:
World Scientific News; 2021, 154; 48-65
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Abrasion impact towards green turtle Chelonia mydas (Linnaeus, 1758) nesting areas in Sindangkerta, Tasikmalaya Regency, West Java, Indonesia
Autorzy:
Mustaqim, Rifki A.
Sunarto, Sunarto
Syamsuddin, Mega L.
Faizal, Ibnu
Powiązania:
https://bibliotekanauki.pl/articles/1031832.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Abrasion
Chelonia mydas
Coastline
Green Turtle
Nesting Area
Satellite Imagery
Sindangkerta
Opis:
Green turtles (Chelonia mydas) are marine reptilians that have habitats in coastal areas to lay eggs. Abrasion is a phenomenon of beach erosion caused by waves and ocean currents which can cause damage to the coast. The purpose of this research is to analyze the impact of abrasion on green turtle’s nesting areas (Chelonia mydas). The research was conducted in the coasts of Sindangkerta, Tasikmalaya Regency, West Java, from December 2019 to January 2020. The method used in this research is observation and survey method, and the data are analyzed comparatively and descriptively. The data used consist of satellite imagery, tide, turtle’s landing, and the characteristics of turtle nesting areas in Sindangkerta coast in the year 1999, 2013, and 2019. The results showed that abrasion changes the condition of the Green Turtle (Chelonia mydas) nesting areas which led to a 40.09 m decrease in beach width, 2.04˚ decrease in beach slope, 15.51% increase in sand (fine-medium), and a loss of several coastal vegetation species.
Źródło:
World Scientific News; 2020, 147; 124-139
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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