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All Journal Journal of Marine and Aquatic Sciences ILMU KELAUTAN: Indonesian Journal of Marine Sciences
Widiastuti Karim
Program Studi Ilmu Kelautan, Fakultas Kelautan Dan Perikanan, Universitas Udayana, Badung, Bali, Indonesia
Earth & Planetary Sciences

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Pertumbuhan dan Tingkat Kelangsungan Hidup Donor Transplan Karang Acropora hyacinthus Berdasarkan Ukuran Panjang Awal Fragmen yang Berbeda AAK Aswan Deva; I Gusti Ngurah Putra Dirgayusa; Widiastuti Widiastuti
Journal of Marine and Aquatic Sciences Vol 7 No 2 (2021)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2021.v07.i02.p14

Abstract

Coral reefs play significant roles in both aspects of ecology and economy. However its status in Indonesian reefs is mainly moderate to poor condition. One of the alternative way to rehabilitate the damaged coral reef is coral transplantation. Acropora hyacinthus is one of export comodities for ornamental aquarium and important component of reef builder organisms. Studies showed that fragmentation causes stress on the coral donor as indicated by the excessive mucus production which in turn may affect the survival of the coral donors. This study aims to determine the growth and survival rates of donors based on the initial fragment sizes. A total of 5 coral donors of A. hyacinthus with relatively similar branch were fragmented into initial sizes of 30, 50 and 70 mm and the rests were controls. The growth was indicated by the increase in length which measured every two weeks for 12 weeks. The results showed that the absolute growth of coral donors were significantly different among initial sizes. The survival rate in the initial length of 30 mm (100%) was higher than those in 50 mm (80%) and 70 mm (80%).
Modifikasi Nilai Luas Area dan Waktu Kunjungan Dalam Penghitungan Daya Dukung Kawasan Wisata di Provinsi Bali: Studi Kasus Pantai Geger I Wayan Artadana; Abd. Rahman As-syakur; Widiastuti Widiastuti; I Gusti Ngurah Putra Dirgayusa
Journal of Marine and Aquatic Sciences Vol 4 No 2 (2018)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (717.184 KB) | DOI: 10.24843/jmas.2018.v4.i02.225-235

Abstract

Carrying Capacity is an important consideration in sustainable tourism development. One of the developing tourist destination in Bali island is Geger Beach which is located in Badung regency, Bali. Geger beach has different conditions with other beaches, therefore it is necessary to determine the estimation area and duration for tourist activities without degrading the quality of the environment. This study aimed to determine the unit of the area, the required time, and the total time per day for particular tourist category according to the condition at Geger beach. Moreover, this study investigated the condition of carrying capacity in the Geger beach. The data were collected primary data obtained by interviewed 100 respondents in Geger Beach and based on literature study on the secondary data. Results showed that the average area for tourism activities (Lt) is 41.5 m2 and the duration for tourism activities (Wp) is 2.29 hours/day. The total time that area provided for tourism activities is 10 hours/day and the total area is 5.023 m2. Carrying capacity value at Geger beach uses Lt and Wp value is 529 people/day, 16.385 people/month or 196.620 people/year. The carrying capacity of Geger Beach conditions is suggested remain under carrying capacity for the entire month and the total visits during 2016.
Co-Authors AAK Aswan Deva Abd. Rahman As-syakur Ade Riestiari Sudarmawan Angginie Adjeng Ayoe Gigih Pangesthu Awalludin, Nur I Dewa Nym. Nurweda P., I Gede Hendrawan I Gusti Bagus Sila Dharma I Gusti Ngurah Putra Dirgayusa I Wayan Artadana I Wayan Gede Astawa Karang Jajang Nuryana Luh Pt Priyandayani Luh Putu Ayu Depi Nurcahyani Ni Luh Putu Febbi Mellani Ni Made Pitria Menala Saputri Yulianto Suteja