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All Journal Jurnal Sains Teknologi dan Lingkungan (JSTL) Jurnal Biologi Tropis SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan
Mahardika Rizqi Himawan
Universitas Mataram
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Kondisi Terkini Presentase Tutupan Terumbu Pada Masa Pandemi Covid-19 di Gili Air, Taman Wisata Perairan Gili Matra, Nusa Tenggara Barat: The Current Condition of the Coral Reef Cover Percentage during the Covid-19 Pandemic in Gili Air, Gili Matra Marine Protected Area, West Nusa Tenggara Nurliah Buhari; Mahardika Rizqi Himawan; Edwin Jefri; Paryono Paryono; Ibadur Rahman; Ayu Adhita Damayanti
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 7 No. 2 (2021): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v7i2.276

Abstract

Gili Matra Aquatic Tourism Park has two conservation targets, namely biological targets and social, cultural and economic targets. Coral reef ecosystems, apart from being a conservation target, are also an attraction for tourists to visit. This research was conducted to determine the condition of the coral reef ecosystem to be used as the basis for the management of conservation areas. The research was conducted by collecting coral reef data either through surveys or secondary data from the results of previous studies. Coral reef survey using the standard Line Intercept Transect method. The survey results show that the condition of coral reefs in the utilization zone is better than the core zone. Live coral cover in the utilization zone reached 71% so it was categorized as good, while in the core zone it only reached 8% so it was categorized as bad. Coral reefs in the core zone are unable to recover even though the number of tourists has decreased during the Covid-19 pandemic. Therefore, the location of the core zone on Gili Air needs to be evaluated further so that the effectiveness of Gili Matra TWP management can be improved.  Key words: coral reefs; Gili Matra; Conservation
KOLABORASI TRIPLE HELIX REHABILITASI MANGROVE DENGAN SISTEM SILVOFISHERY DI DESA PAREMAS LOMBOK TIMUR Eni Hidayati; Sitti Hilyana; Mahardika Rizqi Himawan; Saptono Waspodo; Sitti Latifah; Hardianty Hardianty
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 6, No 4 (2022): Desember
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v6i4.12135

Abstract

ABSTRAKSalah satu metode rehabilitasi mangrove yang dapat meningkatkan tutupan mangrove sekaligus memberikan pendapatan kepada masyarakat yaitu silvofishery. Tujuan kegiatan pengabdian ini adalah merehabilitasi lahan bekas tambak yang sudah tidak produktif dengan metode silvofishery di Desa Paremas, Lombok Timur. Melalui kegiatan Kuliah Kerja Nyata, Praktikum dan Praktik Kerja Lapang, tahapan kegiatan pengabdian yaitu (i) diskusi dengan pemerintah desa mengenai visi-misi Desa Paremas dan penentuan lokasi rehabilitasi, (ii) pengumpulan data dasar mengenai parameter lingkungan yang penting bagi pertumbuhan mangrove seperti durasi dan periode pasang-surut, salinitias, substrat, dan pH, (iii) penentuan jenis mangrove yang sesuai dengan parameter lingkungan, (iv) pembuatan desain silvofishery dan penanaman dan (v) monitoring semai mangrove. Rehabilitasi dilakukan di area bekas tambak seluas 4 hektar milik desa dengan jenis mangrove Rhizophora mucronata. Kegiatan ini menerapkan kolaborasi triple helix antara akademisi (Universitas Mataram), pemerintah (Pemerintah Desa Paremas) dan swasta (Yamamoto Lumber Forest, Co., Ltd). Akademisi berperan dalam penanaman, monitoring, dan penelitian, pemerintah berperan untuk memastikan status tenurial dan regulasi tata kelola silvofishery, dan swasta menyediakan dana untuk pembuatan tambak silvofishery serta bibit ikan/udang/kepiting. Evaluasi keberhasilan rehabilitasi dilakukan berdasarkan pertumbuhan tinggi dan persentase hidup semai mangrove. Persentase hidup bibit mangrove yang ditanam yaitu sekitar 80% dengan pertumbuhan semai rata-rata 10 cm dalam satu bulan. Kata kunci: rhizophora mucronata; tambak ramah lingkungan; wanamina. ABSTRACTOne method of mangrove rehabilitation that can increase mangrove cover while providing income to the community is silvofishery. The purpose of this community service activity is to rehabilitate abandoned fishponds that are no longer productive using the silvofishery method in Paremas Village, East Lombok. Through Community Service Lectures, Practicums and Field Work Practices, the stages of community service activities are (i) discussions with the village government regarding the vision and mission of Paremas Village and determination of rehabilitation locations, (ii) collection of basic data regarding environmental parameters that are important for mangrove growth such as duration and tidal period, salinity, substrate, and pH, (iii) determining mangrove species according to environmental parameters, (iv) making silvofishery designs and planting and (v) monitoring mangrove seedlings. Rehabilitation was carried out in abandoned fishpond area of 4 hectares belonging to the village with the Rhizophora mucronata mangrove species. This activity implements triple helix collaboration between academics (University of Mataram), government (Paremas Village Government) and the private sector (Yamamoto Lumber Forest, Co., Ltd). Academics play a role in planting, monitoring, and research, the government has a role in ensuring tenure status and regulation of silvofishery management, and the private sector provides funds for the construction of silvofishery ponds and fish/shrimp/crab seeds. Evaluation of the success of rehabilitation is carried out based on the height growth and survival rate of mangrove seedlings. The survival percentage of planted mangrove seedlings is around 80% with an average seedling growth of 10 cm in one month. Keywords: rhizophora mucronata; environmental-friendly pond; silvofishery
Study of Hard Coral Community Structure and Natural Recruitment on Rote Island in the Sawu Sea Marine National Park (TNP) Idris Idris; Fakhrurrozi; Ofri Johan; Jotham S R Ninef; Edwin Jefri; Mahardika Rizqi Himawan
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.4688

Abstract

Rote Island and its surroundings are included in the Savu Sea Marine National Park (TNP) area and are administratively included in the Rote Ndao Regency, East Nusa Tenggara (NTT) Province. The waters of the area have high potential for coral reef ecosystem resources and are an important for the marine biota. But when the condition is under pressure due to anthropogenic and natural influences. Therefore it is necessary to carry out routine observations related to the condition of the community structure and its potenstial natural recruitment. Observations were made on 26-28 September 2021 at 12 observation stations. The observation method used was the belt transect method with 3 repetitions (20 m) with an area of 60 m2. Data collection using SCUBA equipment at a depth of 5-7 m on the reef flat. The results of the study found a total of 37 hard coral genera and the highest species richness was in Daiama 2 (30 genera) and the lowest was in Oelua and metina (13 genera). The dominant hard coral genera found were the Porites genera. Furthermore, the potential for natural recruitment of hard coral tillers reaches 21%. The highest potential for natural recovery is at Sotimori 1 (station 3) and the lowest at Boni (station 12). In general, the hard coral community structure at the observation site is in a stable condition with good natural recruitment potential.
Survival Rate and Growth Rate of Transplant Acropora sp and Porites sp Corals in Kecinan, North Lombok Sigit Hariyanto; Ibadur Rahman; Mahardika Rizqi Himawan
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.4876

Abstract

Coral reef ecosystem is an ecosystem that plays a vital role as spawning floor, feeding floor and nursery ground for marine biota. This study aims to determine the survival and in growth rate of Acropora sp and Porites sp sp corals transplanted using frame media. This research was done in Kecinan Coastal Waters, Malaka Village, Pamenang District, North Lombok Regency. West Nusa Tenggara. The method used in this study an experimental method with 2 month observation, which repeated in every 2 weeks. Coral growth rate is observed twice, at the beginning of coral planting and at the end of the observation. The frame media used were 4 units a size of 1 x 1 m2, which placed 30 coral fragments each. So the total number of coral fragments observed was 120 in the media frame at the same depth. Acropora sp corals that were able to survive until the end of the study reached 96.67% while Porites sp sp corals reached 86.67%. The growth rate of Acropora sp was obtained at a value of 0.51 cm/month, while for Porites sp sp was 0.37 cm/month. The two transplanted corals had different growth forms so that they had different growth rate values. Acropora sp coral had a branching growth form with a hollow and porous limestone structure while Porites sp sp had a massive growth form with a denser and harder limestone skeletal structure.
Co-Authors Ayu Adhita Damayanti Edwin Jefri Edwin Jefri Eni Hidayati Fakhrurrozi Hardianty Hardianty Ibadur Rahman Idris Idris Jotham S R Ninef Nunik Cokrowati, Ibadur Rahman, M. Junaidi, Nurliah, M.Marzuki, Nurliah Buhari Ofri Johan Paryono Paryono Saptono Waspodo Sigit Hariyanto Sitti Hilyana Sitti Latifah