scholarly journals Struktur Vegetasi dan Karakteristik Habitat Peneluran Penyu Hijau (Chelonia mydas) di Kawasan Konservasi Penyu Pangumbahan Sukabumi

2018 ◽  
Vol 4 (1) ◽  
pp. 36
Author(s):  
Yorianta Sasaerila ◽  
Dewi Elfidasari ◽  
Muhammad Qeis Tsal Sabil
Keyword(s):  
Green Turtle ◽  
Chelonia Mydas ◽  
Habitat Characteristics ◽  
Physical Analysis ◽  
Nesting Habitat ◽  
Conservation Area ◽  
Terminalia Catappa ◽  
Large Trees ◽  
C 30 ◽  
Commercial Trade

<p><em>Abstrak</em> - <strong>Penurunan populasi penyu hijau yang terjadi secara terus menerus dari tahun ke tahun, menyebabkan penyu termasuk dalam daftar CITES Appendiks I plus zero <em>quota of wild capture for commercial trade</em> saat ini. Oleh karena itu perlu dilakukan upaya konservasi yang baik untuk menjaga kelestarian penyu hijau. Salah satu proses yang penting diketahui bagi kelangsungan sirkulasi hidup penyu adalah proses bertelur. Oleh karena itu perlu diketahui </strong><strong>kondisi</strong><strong> pantai yang menjadi habitat penyu bertelur. Penelitian ini bertujuan untuk melakukan identifikasi terhadap jenis dan struktur vegetasi, serta karakteristik habitat </strong><strong>bertelur </strong><strong>penyu hijau di kawasan konservasi penyu pangumbahan sukabumi</strong><strong>. A</strong><strong>nalisa kuantitatif </strong><strong>yang dilakukan </strong><strong>berupa penghitungan indeks nilai penting vegetasi dan analisa fisik lingkungan sekitar </strong><strong>habitat bertelur</strong><strong> penyu. Berdasarkan letak sarang telur penyu, ditemukan sebanyak 12 spesies vegetasi yang terdiri dari 4 jenis berupa pohon besar, 3 jenis berupa pohon kecil, 3 jenis berupa perdu, 3 jenis berupa herba, 1 jenis berupa semak. terdapat lebih dari 3 jenis vegetasi yang sangat penting di pangumbahan yaitu <em>Callophyllum inophyllum, Terminalia catappa, Ipoemoea pes-caprae</em>. Karakteristik fisik pantai pangumbahan juga masih mendukung proses bertelur penyu hijau. Pantai Pangumbahan memiliki rata- rata suhu 20 <sup>o</sup>C-30 <sup>o</sup>C, intensitas cahaya rendah (0) dan kecepatan angin 2,2 knots serta komposisi pasir yang sesuai.</strong></p><p> </p><p><strong><em>Kata </em></strong><strong><em>K</em></strong><strong><em>unci</em></strong><em> -</em><em> </em><em>H</em><em>abitat </em><em>B</em><em>ertelur, </em><em>P</em><em>enyu </em><em>H</em><em>ijau, </em><em>V</em><em>egetasi, </em><em>Pantai </em><em>Pangumbahan</em><em>, Karakter Fisik</em></p><p align="center"><strong> </strong></p><p><em>Abstract</em> - <strong>The decline in green turtle populations that occur continuously from year to year, causing turtles to be included in the list of CITES Appendix I plus zero quotes of wild capture for commercial trade today. Therefore it is necessary to do a good conservation efforts to maintain the sustainability of green turtles. Therefore it is necessary to know the condition of the beach that turtles laying habitat. This study aims to identify the type and structure of vegetation, as well as the green turtle nesting habitat characteristics in turtle conservation area Pangumbahan sukabumi. Quantitative analysis is done by calculating the index of vegetation important values and physical analysis of the environment around turtle nesting habitat. Based on the location of turtle egg nest, found 12 species of vegetation consisting of 4 types of large trees, 3 species of small trees, 3 types of shrubs, 3 types of herbs, 1 species of shrubs. There are more than 3 important vegetation types in pangumbahan namely Callophyllum inophyllum, Terminalia catappa, Ipoemoea pes-caprae. Physical characteristics of pangumbahan beach also still support the process of laying green turtle. Pangumbahan Beach has an average temperature of 20<sup>o</sup>C-30<sup>o</sup>C, low light intensity (0) and wind speed of 2.2 knots and suitable sand composition.</strong></p><p><strong> </strong></p><p><strong><em>Keywords - </em></strong><em>Habitat lay eggs, Green Turtle, Vegetation, Pangumbahan Beach, Physical Character</em></p>

scholarly journals Biophysical Characteristics of Nesting Habitat of Green Turtle Chelonia mydas In the Coastal Zone of Kasiak, Bindalang and Karabak Ketek Island Of West Sumatra Indonesia

2019 ◽  
Vol 3 (2) ◽  
pp. 44
Author(s):  
Harfiandri Damanhuri ◽  
Dahelmi Dahelmi ◽  
Hafrijal Syandri ◽  
Dietriech G. Bengen
Keyword(s):  
Green Turtle ◽  
Chelonia Mydas ◽  
Sandy Beaches ◽  
Marine Conservation ◽  
Survey Method ◽  
Nesting Habitat ◽  
Chi Square ◽  
Conservation Area ◽  
Green Turtles ◽  
West Sumatra

The research was conducted on three small islands of marine conservation area of West Sumatra, namely Kasiak Island, Bindalang Island and Karabak Ketek Island from January to December 2016. This research  aimed to study the variation of biophysical character of nesting habitat of green turtle (Chelonia mydas L, 1758) by survey method, measurement, observation and analysis. All data were analyzed using Main Component Analysis (PCA), Kriskal Wallis Test Analysis. Based on PCA analysis, the contribution on main character is 43.28%. These results are supported by biophysical conditions of spawning habitats for green turtles is on Karabak Ketek Island as an ideal  island of spawning sites favored by green turtles, when compared to the location of Bindalang Island and Kasiak Island habitats.Result of Kruscal Wallis analysis of Karabak Island rank; 11.90, with a chi-square value; 10.47, asymp sig value 0.005 (5% -10%). This value shows the difference between the biophysical character of the spawning habitat on the character of the coastal slope parameter (KP) is 9.60 °.This is also the ideal slope value for the sandy beach habitat (PSe) and fine sandy beaches (PHA) as the main spawning location for green turtles in West Sumatra

CONDITIONS OF HILLING HABITAT OF CHELONIA MYDAS (GREEN TURTLE) IN PANGUMBAHAN BEACH UJUNG GENTENG, SUKABUMI SELATAN

2019 ◽  
Vol 1 (02) ◽  
pp. 64-67
Author(s):  
Meilisha Putri Pertiwi ◽  
Suci Siti Lathifah
Keyword(s):  
Data Collection ◽  
Surface Temperature ◽  
Green Turtle ◽  
Data Retrieval ◽  
Distribution Patterns ◽  
Chelonia Mydas ◽  
Nesting Habitat ◽  
Beach Width ◽  
The Many ◽  
Pandanus Tectorius

Research on the condition of the nesting habitat of Chelonia mydas (green turtle) in Pangumbahan Beach, Ujung Genteng, South Sukabumi has been carried out. Data retrieval is done 6 times for 2 days, 27-28 November 2017 at 3 observation stations. The abiotic parameters measured include surface temperature and depth of 50 cm, surface humidity and depth of 50 cm, beach width, beach slope, and the size of sand grains. While the biotic parameters measured were density, relative density, the frequency of attendance, and distribution patterns of Pandanus tectorius (sea pandanus) vegetation. Based on the results of data processing, the biophysical conditions in Pangumbahan Beach are still suitable for the Chelonia mydas nesting habitat. It also got clear evidence of the many Chelonia mydas landings during the data collection.

scholarly journals KONDISI HABITAT DAN KAITANNYA DENGAN JUMLAH PENYU HIJAU (Chelonia mydas) YANG BERSARANG DI PULAU DERAWAN, BERAU-KALIMANTAN TIMUR

2017 ◽  
Vol 14 (2) ◽  
pp. 195
Author(s):  
Dharmadi Dharmadi ◽  
Ngurah Nyoman Wiadnyana
Keyword(s):  
Green Turtle ◽  
Habitat Degradation ◽  
Survey Methods ◽  
High Tide ◽  
Chelonia Mydas ◽  
Sea Turtle ◽  
Coastal Vegetation ◽  
Vegetation Density ◽  
Nesting Habitat ◽  
East Kalimantan

Chelonia mydas merupakan spesies penyu yang paling umum dari 6 spesies yang ditemukan di Indonesia. Dewasa ini, jumlah penyu hijau banyak mengalami penurunan, karena berbagai faktor seperti ada perburuan dan pengambilan telur penyu secara ilegal, serta terjadi degradasi habitat. Dalam penelitian ini dipelajari kondisi habitat peneluran dan fluktuasi jumlah penyu hijau (Chelonia mydas) yang mendarat di Pulau Derawan, Kabupaten Berau-Kalimantan Timur, yang diharapkan dapat dijadikan sebagai bahan masukan bagi pengelolaan habitat penyu. Penelitian yang dilakukan pada bulan Maret dan September 2006 menggunakan metode survei dan pengamatan langsung di lapangan. Deskripsi dari habitat penyu bertelur adalah daratan luas dan landai yang terletak di atas bagian pantai dengan rata-rata kemiringan 30° serta di atas pasang surut antara 30 sampai dengan 50 m. Kondisi pantai berpasir tidak kurang dari 90% dan sisa debu maupun tanah liat dengan diameter butiran halus sampai dengan sedang. Jumlah penyu yang mendarat di Pulau Derawan 408 ekor pada tahun 2004 menurun menjadi 168 ekor pada tahun 2005. Penurunan jumlah penyu hijau (Chelonia mydas) yang mendarat di Pulau Derawan disebabkan oleh menurunnya kondisi lingkungan pantai akibat meningkatnya aktivitas masyarakat, berkurangnya kerapatan vegetasi pantai akibat abrasi, dan berkurangnya ruang tempat peneluran karena pembangunan rumah wisata di pinggir pantai di Pulau Derawan. Green turtle is a most common of six turtles species found in Indonesia. Actualy, this turtle population has much decreased, due to some factors, such as turtle hunting and turtle eggs taking illegally as well as habitat degradation occurrence. The current work studied the condition of nesting habitat and the fluctuation of green turtle (Chelonia mydas) population landed in Derawan Island, Berau District in East Kalimantan, with hope that the results are usefull as input for better management of sea turtle habitat. The study that was conducted on March and September 2006 used survey methods and direct observation in the field. Habitat description of green turtle (Chelonia mydas) shows that the area for nesting is the sandy coast of less than 30° slope, silt as well as compacted beach with small and medium grains diameter, and the difference between low and high tide is 30 to 50 cm. Green turtle (Chelonia mydas) number in the nesting area of Derawan Island was 408 individuals in 2004 and decreased to about 168 individuals in 2005. This condition might be caused by the degradation of nesting habitat environment due to the increase of human activity, decrease of coastal vegetation density by coastal abration, and decrease of nesting habitat caused by the builts of housing and resort in the coastal area of Derawan Island.

scholarly journals Deteksi Cemaran Mikroorganisme pada Kawasan Konservasi Penyu di Pangumbahan Sukabumi

2018 ◽  
Vol 4 (1) ◽  
pp. 28
Author(s):  
Dewi Elfidasari ◽  
Toufan Gifari ◽  
Irawan Sugoro
Keyword(s):  
Green Turtle ◽  
Chelonia Mydas ◽  
Coliform Bacteria ◽  
Spawning Habitat ◽  
Molecular Method ◽  
Conservation Area ◽  
E Coli ◽  
Green Turtles ◽  
Turtle Conservation ◽  
Mold And Yeast

<p><em>Abstrak</em> - <strong>Penyu hijau (<em>Chelonia mydas</em>) merupakan reptil ordo Testudines, famili Cheloniidae yang masuk dalam kategori terancam punah CITES Appendiks I. Populasi penyu hijau semakin menurun disebabkan berbagai macam faktor. Diduga mikroorganisme juga berperan dalam penurunan hasil penetasan. Oleh karena itu perlu dilakukan deteksi cemaran mikroorganisme di kawasan konservasi penyu pangumbahan. Sampel mikroorganisme diambil dari habitat peneluran hingga pra dan pasca penetesan. Kemudian mikroorganisme diidentifikasi menggunakan metode molekuler dan <em>sequencing</em>. Hasil identifikasi menunjukkan mikroorganisme pencemar murni Gram negatif yang bersifat patogen. Golongan bakteri koliform yang terdeteksi adalah <em>E.coli</em>, <em>Salmonella </em>dan <em>Shigella</em>, sedangkan<em> </em>jamur didominasi oleh kapang dan <em>yeast</em>. </strong></p><p><strong> </strong></p><p><strong><em>Kata Kunci</em></strong><em>: penyu hijau, </em><em>Chelonia mydas</em><em>, cemaran mikroorganisme, konservasi penyu Pangumbahan</em><em>.</em></p><p><em> </em></p><p><em>Abstract</em> - <strong>Green turtle (Chelonia mydas) is a reptile of Testudines, Cheloniidae family belonging to the endangered category of CITES Appendix I. The population of green turtles is declining due to various factors. Suspected microorganisms also play a role in decreasing hatchery results. Therefore it is necessary to detect microorganisms in the conservation area of turtle pangumbahan. Microorganism samples were taken from spawning habitat up to pre and post penetration. Then the microorganisms were identified using molecular method and sequencing. The identification results show that Gram negative pure microorganisms are pathogenic. Groups of coliform bacteria that are detected are E. coli, Salmonella and Shigella, while mushrooms are dominated by mold and yeast.</strong></p><p> </p><p><strong><em>Keywords</em></strong><em>: Green Turtle, </em><em>Chelonia mydas</em><em>, microorganism pollution, Pangambahan Turtle Conservation</em>.</p>

scholarly journals HABITAT SUITABILITY AND ZONING ANALYSIS FOR GREEN TURTLE Chelonia mydas IN THE MARINE CONSERVATION AREAS OF PANGUMBAHAN TURTLE PARK, SUKABUMI

2017 ◽  
Vol 8 (2) ◽  
pp. 539-552
Author(s):  
Yusuf Arief Afandy ◽  
Fredinan Yulianda ◽  
Syamsul Bahri Agus ◽  
Lucy Peter Liew
Keyword(s):  
Habitat Suitability ◽  
Green Turtle ◽  
Secondary Data ◽  
Chelonia Mydas ◽  
Marine Conservation ◽  
Suitability Analysis ◽  
Conservation Areas ◽  
Conservation Area ◽  
Green Turtles ◽  
Sand Temperature

This study reviews the suitability of habitat for the green turtle in the Pangumbahan Turtle Park. The purpose of this study is to evaluate the existing zoning system and to provide recommendations of alternative zoning approach based on ecological suitability turtle habitat. Observations and fieldwork were undertaken throughout the coastal area of Pangumbahan from January to June 2015 by collecting data which include nesting site for turtles, sand temperature and moisture content, width of the beach, surface slope of the beach, vegetation cover, seagrass and secondary data. Methods of data analysis consists of suitability analysis with the spatial approach using Geographic Information System. The results of the analysis of overlay method were classified into three classes of suitability, which include very suitable covering 6,91 hectares, suitable covering 14,60 hectares and less suitable covering 37,21 hectares. The current existing zones needs to be revised using the recommended zoning system. As an implementation of the findings from this study as well as to effectively manage the conservation area based on the green turtle ecology, it is highly recommended to do a zoning system which is based on the principal of the green turtles habitat suitability to ensure the sustainability of the green turtle within the conservation area. This will ensure the zoning system suits the green turtles’ characteristics hence enabling each of the zones to effectively functioning.

scholarly journals PRESENT STATUS OF NESTING HABITAT OF GREEN TURTLE (Chelonia mydas) lN WEST JAVA-INDONESIA

2017 ◽  
Vol 15 (1) ◽  
pp. 49
Author(s):  
Adriani Sri Nastiti Krismono ◽  
Amula Nurfiarini ◽  
Ahmad Fitrianto ◽  
Ngurah Nyoman Wiadnyana
Keyword(s):  
Present Status ◽  
Protected Area ◽  
Green Turtle ◽  
Sea Turtles ◽  
Chelonia Mydas ◽  
Sea Turtle ◽  
Coastal Habitat ◽  
Nesting Habitat ◽  
Habitat Condition ◽  
West Java

The coastal habitat condition much influences the moving of sea turtles to coast for nesting. In West Java Province there are some potential coasts as nesting habitat of sea turtles, but it has experiencing of many damage and has not been touched yet as the protected area for sea turtle nesting habitat.

scholarly journals SEBARAN LOKASI PENELURAN PENYU HIJAU (Chelonia mydas) DI PULAU SANGALAKI KEPULAUAN DERAWAN KABUPATEN BERAU

2016 ◽  
Vol 18 (2) ◽  
pp. 39
Author(s):  
Andi Ibrahim ◽  
Djumanto Djumanto ◽  
Namastra Probosunu
Keyword(s):  
Green Turtle ◽  
Sandy Beach ◽  
Environmental Parameters ◽  
Chelonia Mydas ◽  
Lunar Phase ◽  
The West ◽  
Conservation Area ◽  
Border Line ◽  
Spawning Frequency ◽  
Beach Width

Population of green turtle (Chelonia mydas) that laid their eggs in the Derawan Islands conservation area was declined due to various factors. The aim of this study was to determine the number of egg that was laid down into the nest for each green turtle parent and its correlation to shade, sandy beach width, and moon phase. The study was conducted from 24 January to 31 March 2015 in the Sangalaki Island. The observation of the broods stock was done by walking down the beach in the night to find out the broodstock that laid the eggs and counted the number. A sign was given to the nest of broodstock that finished laying the eggs. On the following day, nest excavation, egg collection, and the environmental measurement were conducted. Environmental conditions were measured include the depth of the nest, substrate temperature, the distance of the nest site to the shading trees and the border line of lowest tide. Data analysis was done descriptively by counting the number of eggs and environmental parameters. The results show that the average number of egg per nest was 97 items with the range of 45 - 127 items, the length of the carapace was 96 cm with a range of 86 - 107 cm, the average depth of the nest hole was 73 cm with a range of 56 - 87 cm. Broods stock of green turtle that laid more eggs would dig nest hole deeper, but there was no correlation between the carapace length and the number of the laid eggs. The average number of green turtle broods stock that lay eggs in the Sangalaki Island was 486 individual/ month with the range of 168 - 1085 individu/month. The west and east seasons affect the frequency of nesting and the laid eggs. The frequency of spawning occured throughout the year and the highest spawning frequency occured in August which coincides with the peak of the East Season. The frequency of spawning during the East Season was four times higher than during the West season. The frequency of green turtle landing was not affected by the lunar phase. Based on the location of laying egg, the beaches that were selected for laying egg are located in the northwest, northeast, and south parts of the Sangalaki Island. The Green turtle nests were commonly found in the vegetation shading areas (64%) than open sand areas (36%).

scholarly journals HABITAT SUITABILITY AND ZONING ANALYSIS FOR GREEN TURTLE Chelonia mydas IN THE MARINE CONSERVATION AREAS OF PANGUMBAHAN TURTLE PARK, SUKABUMI

2017 ◽  
Vol 8 (2) ◽  
pp. 539
Author(s):  
Yusuf Arief Afandy ◽  
Fredinan Yulianda ◽  
Syamsul Bahri Agus ◽  
Lucy Peter Liew
Keyword(s):  
Habitat Suitability ◽  
Green Turtle ◽  
Secondary Data ◽  
Chelonia Mydas ◽  
Marine Conservation ◽  
Suitability Analysis ◽  
Conservation Areas ◽  
Conservation Area ◽  
Green Turtles ◽  
Sand Temperature

<p>This study reviews the suitability of habitat for the green turtle in the Pangumbahan Turtle Park. The purpose of this study is to evaluate the existing zoning system and to provide recommendations of alternative zoning approach based on ecological suitability turtle habitat. Observations and fieldwork were undertaken throughout the coastal area of Pangumbahan from January to June 2015 by collecting data which include nesting site for turtles, sand temperature and moisture content, width of the beach, surface slope of the beach, vegetation cover, seagrass and secondary data. Methods of data analysis consists of suitability analysis with the spatial approach using Geographic Information System. The results of the analysis of overlay method were classified into three classes of suitability, which include very suitable covering 6,91 hectares, suitable covering 14,60 hectares and less suitable covering 37,21 hectares. The current existing zones needs to be revised using the recommended zoning system. As an implementation of the findings from this study as well as to effectively manage the conservation area based on the green turtle ecology, it is highly recommended to do a zoning system which is based on the principal of the green turtles habitat suitability to ensure the sustainability of the green turtle within the conservation area. This will ensure the zoning system suits the green turtles’ characteristics hence enabling each of the zones to effectively functioning.</p>

Nesting habitat characteristics of green sea turtle (Chelonia mydas) in the Tambelan archipelago, Indonesia

2021 ◽  
Vol 25 (1) ◽  
Author(s):  
M. Yusuf Rumaida ◽  
Singgih Afifa Putra ◽  
Aras Mulyadi ◽  
Syafruddin Nasution
Keyword(s):  
Chelonia Mydas ◽  
Sea Turtle ◽  
Habitat Characteristics ◽  
Nesting Habitat ◽  
Green Sea Turtle

Structural description of sea turtle fibropapilloma

2020 ◽  
Vol 13 (3) ◽  
pp. 585-591
Author(s):  
Luana Melo ◽  
Isabel Velasco ◽  
Julia Aquino ◽  
Rosangela Rodrigues ◽  
Edris Lopes ◽  
...  
Keyword(s):  
Green Turtle ◽  
Chelonia Mydas ◽  
Sea Turtle ◽  
Tumor Formation ◽  
Neoplastic Disease ◽  
Structural Description ◽  
Chemical Carcinogens ◽  
Epidermal Proliferation ◽  
Turtle Population ◽  
Bulky Mass

Fibropapillomatosis is a neoplastic disease that affects sea turtles. It is characterized by multiple papillomas, fibropapillomas and cutaneous and/or visceral fibromas. Although its etiology has not been fully elucidated, it is known that there is a strong involvement of an alpha - herpesvirus, but the influence of other factors such as parasites, genetics, chemical carcinogens, contaminants, immunosuppression and ultraviolet radiation may be important in the disease, being pointed out as one of the main causes of a reduction in the green turtle population. Thus, the objective of this article was to describe the morphology of cutaneous fibropapillomas found in specimens of the green turtle (Chelonia mydas), using light and scanning electron microscopy in order to contribute to the mechanism of tumor formation. Microscopically, it presented hyperplastic stromal proliferation and epidermal proliferation with hyperkeratosis. The bulky mass was coated with keratin, with some keratinocyte invaginations, that allowed the keratin to infiltrate from the epidermis into the dermis, forming large keratinized circular spirals. Another fact that we observed was the influence of the inflammation of the tumors caused by ectoparasites.

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