Perilaku Harian Buaya Muara (Crocodylus porosus) sebagai Indikator dan Parameter Penentu Pelepasliaran di Alam Bebas

Authors

  • Jemy Piter Karubun Mahasiswa

DOI:

https://doi.org/10.33830/manilkara.v3i2.9658.2025

Abstract

Estuaria crocodiles (Crocodylus porosus) are wild animals protected under Law No.32 of 2024 to ensure the maintenance of their population, even though their conservation status is categorized as Least Concern (LC), indicating a low risk of extinction. This study aims to observe the daily behavior of estuarine crocodiles (Crocodylus porosus) at the Tegal Alur Animal Rescue Center, under the Natural Resources Conservation Agency of Jakarta. The data obtained are expected to serve as a reference for assessing the readiness and suitability of estuarine crocodiles to be released into their natural habitat. The study employed the focal animal sampling method, observaing daily behavioral parameters such as movement, feeding habits, social interactions, and basking behavior. The research sample consisted of two estuarine crocodiles: one adult female and one adult male. The data were analyzed to determine the percentage of daily behaviors and their relationship to environmental factors, particularly cage conditions. The results showed that daily behaviour of estuarine crocodiles at the Tegal Alur Animal Rescue Center generally reflects the typical lifestyle patterns of crocodiles in the wild. However, their movement is less unrestricted compared to crocodiles in their natural habits. Observed activities including moving, walking, or crawling between dry and wet areas; feeding behaviors such as catching, biting, positioning, and swallowing food; social behaviors like vocalizations and aggressive interactions when disturbed by other crocodiles; and basking behaviors, such as opening their mouths and quickly moving their front and hind legs and tail. In conclusion, the overall life activities of the estuarine crocodiles at the Tegal Alur Animal Rescue Center suggest that they retain natural behaviors, making them suitable for release back into their natural habitats.

References

Altmann, H. (1973). Observational study of behavior: Sampling methods. Behavior, 49, 227 -267

Arniati, H. (2008). Pembesaran dan penangkaran buaya jenis buaya muara (Crocodylus porosus) dan buaya irian (Crocodylus novaeguineae). Bogor: Bidang Zoologi Pusat Penelitian Biologi Lembaga Ilmu Pengetahuan Indonesia.

Atmoko, T., & Susilo, A. (2016). Pengelolaan satwa liar sebagai upaya pelestarian sumber daya alam. I. Yassir & T. Atmoko (Eds.), Prosiding Hasil-hasil Penelitian Balitek KSDA, 119-129.

Australia Zoo (2013). Amazing animals fact sheets: Crocodilians. Diakses dari https://australiazoo.com.au/wildlife/our-animals/saltwatercrocodile/?animal=Saltwater%20Crocodile

Berkovitz, B., & Shellis, P. (2017). The teeth of non-mammalian vertebrates. Academic Press. an imprint of Elsevier.

Brien, M., Shwedick, B., McCaskill, L., Ramono, W. and Webb, G.J.K. (2014). Summary report of the IUCNSSC crocodile specialist group review mission to Indonesia (23 August-17 September 2014). Crocodile Specialist Group.

Britton, A. (2002). Crocodylus porosus (Scneider, 1801). Diakses dari http://www.flmnh.ufl.edu/cnch/csp-cpor.htm.

CITES (1995). CITES identification guide – crocodilians, minister of supply and services Canada, 1995. Diakses dari https://cites.unia.es/cites/file.php/1/files/CAN-Croc_Guide_Complete_LR.pdf

CITES (2021). CITES appendices I, II, and III. Convention on International Trade in Endangered Species of Wild Fauna and Flora, 85–87. Diakses dari https://cites.org/sites/default/files/eng/app/2021/E-Appendices-2021-02-14.pdf

CITES (2023). CITES appendices I, II, and III. Convention on International Trade in Endangered Species of Wild Fauna and Flora, 85–87. Diakses dari https://cites.org/sites/default/files/eng/app/2023/E-Appendices-2023-05-21.pdf

Das, I. (2015). A field guide to the reptiles of South-east Asia. UK: Bloomsbury Publishing Plc.

Dima, A.O., Ati, V.M., Damanik, D., & Haris, S. (2020). The essence of the daily behaviour of saltwater crocodile (Crocodylus porosus) in temporary storage enclosure BBKSDA NTT. Jurnal Biotropikal Sains, 17(3), 42-48.

Eustace, A., Gunda, D.M., Mremi, R.F., Sanya, J., Kamili, E., Munuo, W.A., Saigilu, M., Martin, E.H., Kisingo, A., & Kahana, L.W. (2022). Patterns pertaining to crocodile attacks on humans in Tanzania: Baseline data to support mitigation measures. Human Ecology, 50, 953-961.

Grigg, G., & Gans, C. (1993). Morphology and physiology of the crocodylia. In Fauna of Australia Vol 2A Amphibia and Reptilia (pp. 326-266). Australian Government Publishing Service.

IUCN (2021). Crocodylus porosus, saltwater crocodile. The IUCN Red List of Threatened Species 1996, 8235. http://dx.doi.org/10.2305/IUCN.UK.1996.RLTS.T5668A11503588.en

Johnson, C.R. (1973). Behavior of the Australian crocodile. Crocodylus johnstoni and C. porosus. Zoological Journal of the Linnean Society, 52(4), 315-336.

KSDAE (2011). Peraturan Direktur Jenderal Perlindungan Hutan dan Konservasi Alam. Nomor : P.9/IV-SET/2011 tentang pedoman kesejahteraan satwa di Lembaga Konservasi Direktur Jenderal Perlindungan Hutan dan Konservasi Alam. Jakarta: Dirjen Konservasi Sumber Daya Alam Ekosistem.

KSDAE (2018). Statistik Direktorat Jenderal Konservasi Sumber Daya Alam dan Ekosistem Tahun 2018. Jakarta: Kementerian Lingkungan Hidup dan Kehutanan, Dirjen Konservasi Sumber Daya Alam dan Ekosistemnya.

Kurniati, H. (2008). Pembesaran dan penangkaran buaya jenis buaya muara (Crocodylus porosus) dan buaya air tawar irian (Crocodylus novaeguineae). Bogor: Bidang Zoologi, Pusat Penelitian Biologi, Lembaga Ilmu Pengetahuan Indonesia.

Lehner, P.N. (1992). Sampling methods in behavior research. Poultry Science, 71(4), 643-649.

McDiarmid, R.W., Foster, M.S., Guyer, C., Gibbons, J.W., & Chernoff, N. (2012). Reptile biodiversity: Standard methods for inventory and monitoring. Berkeley: University of California Press, c2012. 424 pp.

Moro, H.K.E.P., Hanifah, N., Tanzilla, R., & Lestariningsih, F. (2017). Perilaku reptilia ketika gerhana matahari parsial di PASTY Yogyakarta. BIOTROPIC the Journal of Tropical Biology, 1(2), 37-40.

Nuryanti, R.Y. (2013). Teknik penangkaran buaya muara (Crocodylus porosus) di Penangkaran Taman Buaya Indonesia Jaya, Serang, Bekasi, Jawa Barat. Bogor: Institut Pertanian Bogor.

Pina, C. & Larriera, A. (2002). Caiman latirostris growth: The effect of a management technique on the supplied temperature. Short Communication. Aquaculture, 211, 387-392.

Poletta, G.L., Larriera, A., & Siroski, P.A. (2008). Broad snouted caiman (Caiman latirostris) growth under different rearing densities. Short communication. Aquaculture, 2810, 264-266.

Pratiwi, R.H., Ramadhanty, Y.E., & Asih, D.A.S. (2022). Analisis pola perilaku buaya muara (Crocodylus porosus) di Taman Buaya Indonesia Jaya Bekasi. Quagga: Jurnal Pendidikan dan Biologi, 14(1), 37-44.

Ramadani, Afriyansyah, B., & Hamidy, A. (2023). Population and habitat characteristics of the saltwater crocodile (Crocodylus porosus, Schneider 1801) in the Antan River, Jebus-Parittiga District, West Bangka. Jurnal Biologi Indonesia, 19(1), 17-23.

Rinda., Stepanus, A.S., & Ghitarina (2018). Tingkah laku harian buaya air tawar (Crocodylus siamensis, Schneider 1801) di Penangkaran Buaya Kelurahan Teritip, Balikpapan. Aquarine Journal, 5(1), 21-28.

Ripai, A., & Kamarubayana, L. (2016). Penangkaran buaya muara (Crocodylus porosus) di PT. Makmur Abadi Permai, Samarinda Kalimantan Timur. Jurnal AGRIFOR, XV(2), 155-170.

Ross, C.A. (1989). Crocodiles and alligators. Facts on Files. New York. Pp. 76-153.

Saputro, M.B., Rifanijani, S., & Siahaan, S. (2020). Studi habitat buaya sinyulong (Tomistoma schlegelii) di Sungai Sekonyet Taman Nasional Tanjung Puting Kalimantan Tengah. Jurnal Hutan Lestari, 8(1), 145-155.

Semeniuk, V., Manolis, C., Webb, G.J.W., & Mawson, P.R. (2011). The Saltwater crocodile. Crocodylus porosus, Schnider 1801. In the Kimberley Coastal Region. Journal of the Royal Society of Western Australia, 94(2), 407-416.

Setio, P., Muharromi. P., Prihantono, S., Qurniawan, T.F., Nugraha, A.P., & Eprilurahman R. (2010). Perilaku harian buaya muara (Crocodylus porosus, Schneider 1801) di Pusat Penyelamatan Satwa Jogja. Biota, 15(2), 188-194.

Susanti, A. (2011). Pengelolaan penangkaran buaya di CV. Surya Raya, Balikpapan, Kalimantan Timur. Bogor: Institut Pertanian Bogor.

Taylor, B., & O’Shea, M. (2004). The great big book of snakes & reptiles. London: Hermes House.

Wati, I.J., & Karubun, J.P. (2018). Potret pengelolaan pusat penyelamatan satwa Tegal Alur. Balai Konservasi Sumber Daya Alam. Jakarta: Perpustakaan Nasional.

Webb, G.J.W., Manolis, S.C., Whitehead, P.J., & Letts, G.A. (1984). A proposal for the transfer of the Australian population of Crocodylus porosus Schneider (1801), from Appendix I to Appendix II of CITES. Conservation Commission of the Northern Territory, Tech. Report No. 21. 82 pp.

Webb, G.J.W., SC. Manolis., M.L., & Brien. (2010). Saltwater crocodile Crocodylus porosus status survey and conservation action plan. Third Edition. Australia: Wildlife Management International.

Winarno, G.D., & Harianto (2018). Perilaku satwa liar (Ethology). Bandar Lampung: CV. Anugrah Utama Raharja.

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Published

2025-01-24

How to Cite

Karubun, J. P. (2025). Perilaku Harian Buaya Muara (Crocodylus porosus) sebagai Indikator dan Parameter Penentu Pelepasliaran di Alam Bebas. MANILKARA: Journal of Bioscience, 3(2), 64–75. https://doi.org/10.33830/manilkara.v3i2.9658.2025

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