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Najamuddin Najamuddin
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Sustainability status of ecotourism-based seagrass ecosystem management on Maitara Island. Indonesia Salim Abubakar; Rina Rina; Riyadi Subur; Rene C Kepel; Sunarti Sunarti; Rugaya H Serosero; Yuyun Abubakar; Nebuchadnezzar Akbar; Najamuddin Najamuddin; M. Janib Achmad; Ariyati H. Fadel; M. Said Al Hadad; Raut Nugrahening Widhi; Raut Wahyuning Paluphi
Depik 2025: Special Issue ICMF
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.47064

Abstract

Seagrass ecotourism is a tourism activity based on seagrass ecosystem as an educational tour by seeing the ecology of seagrass meadows and associated biota. Conservation awareness and improving community welfare, seagrass ecotourism is a nature-based tourism strategy with the aim of environmental conservation and containing aspects of community education and culture. Determining the sustainability status of seagrass ecosystem management is very important as a basis for future policy planning. The sustainability of seagrass ecosystems needs to be protected, so a policy strategy is applied in sustainable seagrass ecosystem management. The objectives of the study are: 1) determining the sustainability status of ecotourism-based seagrass ecosystem management based on ecological, economic and social dimensions, 2) determining the policy strategy for ecotourism-based seagrass ecosystem management. The results of the study obtained the sustainability status of ecotourism-based seagrass ecosystem management based on ecological dimensions is quite sustainable while the economic and social dimensions are less sustainable. The strategy for sustainable policy for managing seagrass ecosystems based on ecotourism on Maitara Island, Tidore Islands, namely education about seagrass ecosystems for the community, managing seagrass ecosystems based on ecotourism, increasing seagrass rehabilitation programs, maximum limits for carrying capacity of seagrass ecotourism, training for developing managers of seagrass ecotourism based on ecosystems, increasing job opportunities and business opportunities, legality of seagrass areas as conservation areas in the tourism utilization zone category and strengthening laws and institutions.Keywords:analysismultidimensionalsmall islandsustainabilitytourism
Practical application of sea urchin shell flour supplementation as a stimulant moulting in vannamei shrimp Heriansah Heriansah; Nursyahran Nursyahran; Nursidi Nursidi; Nur Fajriani Nursida; Najamuddin Najamuddin
Depik Vol 10, No 2 (2021): August 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.2.19456

Abstract

The practical application of waste recycling as feed supplement is potentially required by small-scale aquaculturist. Furthermore, some of the flour derived from waste sea urchin shells and in adopted in feed, including Deadema setosum were evaluated to estimate the effect on white shrimp Litopenaeus vannamei moulting. This research required the experimentation of four doses with triplicate supplementation (0, 2, 4, and 6 g 100 g-1 of feed) on shrimps four times daily (12% of body weight) for 35 days test period. The juvenile specimens, characterized by an initial weight of 1.610.11 g, were stocked at a density of 12 individuals in a 12 L aquarium. In addition, four compartments were created in each aquarium to facilitate progress observations. The proximate analysis results showed a 53.760.27% calcium content in the shell flour, which significantly increased (P0.05) after higher dose supplementation, in the sequential order 18.650.13%, 20.040.08%, 23.180.10%, and 25.040.11%. Moreover, the frequency and moulting interval with 4 g doses (16.59%0.36% day-1 and 5.910.18 days-1) were significant (P0.05) and considered the best, compared to 0 g (10.48% 0.24% day-1 and 9.970.37 days-1), 2 g (13.49%0.96% day-1 and 8.100.29 days-1), and 6 g (13.81%0.24% day-1 and 7.900.06 days-1). In addition, the respective trend pattern for both parameters increased and decreased at 4 g and 6 g, correspondingly. The highest moulting intensity was also obtained with the 4 g doses, at a range of 4 to 6 times, while the lowest (0 g) varied from 3 to 4 times. These sea urchin shell flour was determined to have numerous practical applications as a feed supplement with proven ability to stimulate moulting in vannamei shrimp.Keywords:MoultingCalciumShellSea urchinFeed supplementationVannamei shrimp
Co-Authors A. Octamaya Tenri Awaru Abdul Asis Abdul Rahman Abubakar, Salim Akhiruddin Akhiruddin Andi Assir Andi Irhamnia Sakinah Andi Lisdawati Anriani Nurul Maghfirah Anwar Ramli Aprilia Dewi Umalia Arifuddin Ahmad Arisnawawi Ariyati H. Fadel Ashari Ashari Baiq Shofa Ilhami Baso Witman Adiaksa Bastiana Bastiana Bosra, Mustari Firdaus W Suhaeb Fitri Antika Haruna, Nadyah Hendry Sakke Tira, Hendry Sakke Heriansah, Heriansah Inarwati Inarwati Jumadi Jumadi M. Janib Achmad M. Ridwan Said Ahmad M. Said Al Hadad Minawati Minawati Muh Rasyid Ridha Muh Rizal Muhammad Djanib Achmad Musfira Putri Irawan Mustari Mustari Mustaring Mustaring Mutmainna Mutmainna Nasri Indra Padang Nebuchadnezzar Akbar Nomarihi Goraahe Nur Fajriani Nursida Nurannisa Lumanto Nurmaningsih Nurmaningsih Nursidi, Nursidi Nursyahran Nursyahran Nursyahran, Nursyahran Patahuddin Patahuddin Rabiatun Adawiyah Agustina Rabihatun Adawiyah Rasyid, Rusman Raut Nugrahening Widhi Raut Wahyuning Paluphi Rene C Kepel Rene Charles Kepel, Rene Charles Rezki Nurfyanti Rina Rina Riyadi Subur, Riyadi Rohyana Fitriani Romansyah Sahabuddin Rovina Andriani Rugaya H Serosero Salman Salman Sunarti Sunarti Syahnul Sardi Titaheluw Tamrin, Sopian Tantri Wulandari Torro, Supriadi Yesung Allo Padang Yuyun Abubakar Zuhud Ramdani zuhud ramdhani