Suhu inkubasi, pasir pantai peneluran dan sukses penetasan telur penyu pada sarang semi alami di Pantai Warebar - Yenbekaki Distrik Waigeo Timur, Kabupaten Raja Ampat

Abstract
The research took place between May and October 2019, and divided into two stages. The first stage was field research to collect data by identifying turtles, calculating hatching successes, measuring the temperature of the nesting beach and nest temperature of each species of turtle in semi-natural nests at Warebar Beach, Yenbekaki village, East Waigeo Sub District, Raja Ampat. The second stage after the field was conducting an analysis of hatching rate in hatchery, sand temperature and nest temperature for each species of turtle. The species of turtles nesting at Warebar Beach are olive-ridley (Lepidochelys olivacea) and hawksbill (Eretmochelys imbricata) turtles. Based on the measurement results at semi-natural nests, it was obtained that the hatching rate of olive ridley sea turtle was 71.6%±28.3 (X±SD) and hawksbill sea turtle was 59.8%±41.3, the overall mean temperature of nesting beach was 28oC, the mean incubation temperature for both sea turtle species was 31oC.
References
Dermawan A., I.N.S, Nuitja., D, Soedharma., M.H, Halim, M.D, Kusrini., S.B, Lubis., R, Alhanif., M, Khazali., M, Murdiah., P.L, Wahjuhardini., Setiabudiningsih., A, Mashar.. 2009. Pedoman Teknik Pengelolaan Konservasi Penyu. Direktorat Konservasi dan Taman Nasional Laut. Dirjen KP3K, DKP RI Jakarta.
Dapertemen Kelautan dan Perikanan. 2009. Pedoman Teknis Pengel-olaan Konservasi Penyu dan Habibatnya. Departemen Kelau-tan dan Perikanan. Jakarta
Godley, B.J., Broderik, A.C., Glen, F., Hays, G.C. 2002. Temprature De-pendent Sex Determination of Ascension Island Green Turtle. Mar. Ecol Prog Ser 210: 115-124
Hasanah, K. 2013. Uji Korelasi Produk Moment Statistika Pendidi-kan.UNJ. Jakarta.
International Union for the Conserva-tion of Nature and Natural Re-sources. https://www.iucnredlist.org/species/4615/11037468
Miller, J. D. 1997. Reproduction In Sea Turtles. In: Lutz, P.L dan Musick, J.A. The Biology of Sea Turtle. Boca Raton: CRC Press
Natih, N.M.N. 1989. Tingkah Laku Penyu Hijau (Chelonia mydas) di Pantai Pangumbahan. Jurusan Management Sumber Daya Perairan, Fakultas Perikanan. Bo-gor. (hlm 31)
Nuitja, I.N.S and Uchida. 1983. Study and The Sea Turtle II : The Nest-ing Site Characteristic of The Howksbill and Green Turtle. La-boratorium Ilmu Kelautan UI-Institut Pertanian Bogor. Ancol. Jakarta
Nuitja, I.N.S. 1992. Biologi dan Ekologi Pelestarian Penyu Laut. IPB Presss, Bogor. 127 Hlm
Parinding, Z., Basuni, S., Purnomo, H., Kosmaryadi, N., dan Wardianto, Y. 2015. Karakteristik Fisik Pan-tai Peneluran Chelonia mydas, Linn.1758 di Kalimantan-Papua Barat. Jurnal Ilmu Pertanian Indo-nesia. Vol.20 No.1.
Sugiyono. 2007. Metode Penelitian Kunatitatif Kualitatif dan R&D. Alfabeta. Bandung.
Susilowati, T. 2002. Studi Parameter Biofisik Pantai Peneluran Penyu Hijau (Chelonia mydas) di Pantai Pangumbahan Sukabumi, Jawa Barat. ISSN 0853-7291: Vol. 19(2):123-130
Tapilatu, R. F., and M. Tiwari. 2007. Leatherback turtle, Dermochelys coriacea, hatching success at Jamursba-Medi and Wermon beaches in Papua, Indonesia. Che-lonian Conservation and Biology 6:154-158.
Tapilatu, RF dan Ballamu, F. 2015. Nest Temperatures from the Piai and Sayang Islands Green Turtle (Che-lonia mydas) Rookeries, Raja Am-pat Papua, Indonesia: Implica-tions for Hatchling Sex Ratios. BIODIVERSITAS 16 (1): 102-107.
Tapilatu, R.F., Wona, H. and Batubara, P.P. 2017. Status of Sea Turtle Populations and its Conservation at Birds Head Seascape, Western Papua, Indonesia. Biodiversitas 18(1):129-136
Tapilatu, R.F. 2017. The evaluation of nest relocation method as a con-servation strategy for saving sea turtle populations in the North Coast of Manokwari – Papua Barat Province – Indonesia. Ecol-ogy Environment and Conserva-tion 23(4):24-33
Wibbels, T., R. Marques, M. M. Gar-duso, D. Patrick and J. Pesa. 2000. Incubation temperatur in Kimp’s Ridley Nest During the 1998, Nesting Season. Proceed-ings Nineteeth Annual Symposi-um on Sea Turtle Conservation and Biology, NMFS Publication. Miami. P: 130- 134
Yusuf. 2000. Mengenal Penyu. Yayasan Alam Lestari dan Keidanren Na-ture Conservation Fund (KNCF) Jepang. 81 hlm.
Upuya, J.S.2018. Sukses Penetasan Te-lur Penyu Di Hatchery Semi Alami Di Kampung Mubraidiba Distrik Manokwari Utara Kabupaten Manokwari. SKRIPSI FPIK. Universitas Papua