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Bumi Lestari
Published by Universitas Udayana
ISSN : 14119668     EISSN : 25276158     DOI : https://doi.org/10.24843/blje
Core Subject : Humanities, Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Humanities Earth & Planetary Sciences Energy Environmental Science
Bumi Lestari Journal of Environment (p-ISSN: 1411-9668; e-ISSN: 2527-6158) is a peer-reviewed journal, presents original research articles and letters in all areas of environmental studies and environmental sciences (biotic, abiotic and social/cultural). This journal has been indexed by cabdirect cabi.org, AJD (Academic Journals Database), ISJD (Indonesian Scientific Journal Database), IndexCopernicus, Portal Garuda, researchBib and Google Scholar. The journal is published by Environmental Research Center (PPLH) of Udayana University. The journal is published two times a year: February and August in both printed and online versions. The online version is free access and download. This journal is devoted to publish research papers such as environmental biology, environmental physics, environmental health, ecology, geosciences and environmental chemistry including such matters as land, water, food, conservation, population, risk analysis, pollution, energy, economics of ecological and non-ecological approaches, social advocacy of arguments for change, analytical methods, legal measures, implications of urbanism, energy choices, waste disposal, health effects, recycling, transport systems, political approaches, social impacts and other issues of mass society. There is concern also for marginal areas, under-developed societies, minorities, species loss, etc. The purpose of this journal is to provide input and its solution to the environmental problems that has happened or will be happen from the results of researchs.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 5 Documents
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Search results for , issue "Vol 22 No 1 (2022)" : 5 Documents clear
KOMPOSISI JENIS DAN TUTUPAN TERUMBU KARANG DI PANTAI SAMUH, NUSA DUA, BALI Krisna Jumantara Panca Putra; I Wayan Arthana; Made Ayu Pratiwi
Bumi Lestari Journal of Environment Vol 22 No 1 (2022)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2022.v22.i01.p05

Abstract

Terumbu karang dikenal sebagai ekosistem yang sangat kompleks dan produktif dengan keanekaragaman biota seperti moluska, crustacea dan ikan karang. Keragaman hayati karang, fungsi ekologis dan ekonomis tinggi juga di ikuti oleh ancaman yang tinggi dai berbagai aktifitas manusia. Penelitian ini bertujuan untuk mengetahui komposisi jenis dan tutupan Terumbu karang. Penelitian menggunakan metode Purposive Random Sampling. Pengambilan data pada 2 stasiun dengan 3 kedalaman berbeda 3m, 7m, dan 10m dilakukan dengan menggunakan metode transek kuadran 1x1 m2. Penelitian menemukan 15 jenis Terumbu karang di Pantai Samuh meliputi Acropora Baranching (ACB), Acropora Encrusting (ACB), Acropora Submassive (ACS), Acropora Digitate (ACD), Acropora Tabulate (ACT), Non - Acropora Baranching (CB), Non – Acropora Encrusting (CE), Non – Acropora Foliose (CF), Non – Acropora Massive (CM), Non – Acropora Sub Massive (CS), Non – Acropora Mushroom (CMR), Non – Acropora Millepora (CME), Non – Acropora Helliopora (CHL), Soft Coral (SC), Sponge (SP), Zoanthida (ZO), Other (OT). Persentase tutupan Acropora lebih tinggi dibandingkan karang lainnya. Persentase tutupan Terumbu karang tertinggi terdapat di kedalaman 10 m sebanyak 94,75%, terendah di kedalaman 3 m sebanyak 80,66%. Berdasarkan hasil analisis diperoleh kondisi penutupan Terumbu karang di Peraian Pantai Samuh secara umum tergolong dalam kategori baik sekali dan terjaga.
Analisis Kelayakan Potensi Ekowisata Pantai Pandan, Kecamatan Pandan Tapanuli Tengah Sumatera Utara. Wenny Aberti Manurung; I Wayan Restu; Gde Raka Angga Kartika
Bumi Lestari Journal of Environment Vol 22 No 1 (2022)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2022.v22.i01.p01

Abstract

Abstract This study was conducted in Pandan Beach, Pandan District, Central Tapanuli, North Sumatra which aims to know the supporting factors of coastal tourism feasibility from the limiting factors of tourism conformity index value and to know the tourism conformity index (IKW). This research was conducted for 1 Month, namely in early March to early April 2021. The method used in this study is descriptive quantitative method. Determination of the location of research based on the representation of the area is located with the consideration that in the area is often carried out tourist activities such as point 1 waterspot activities, point 2 is swimming activity and point 3 ship activity that carries passengers around the island. parameters measured in the Index of Tourism Conformity Category Of Beach Tourism namely depth, tipe beach, beach width, water base material, beach slope, current speed, brightness, closure of coastal land, hazardous biota, and availability of fresh water. Based on the observation of the potential of Pandan Beach is the white sand, the waves are not too besar. The results showed the value of tourist conformity index of the three stations, namely at station 1 has a value of 2,695, while at stations II and III has the same value of 2,795. It shows that pandanus beach falls into the category of very appropriate (SI) with a conformity index value of >2.5. Hal showed that Pandan Beach Tapanuli Central North Sumatra has a very good potential to be a location for recreational beach tourism activities. Keywords: Potential; Tourism Conformity Index; Pandan Beach.
Pengaruh Pemberian Pakan Berbeda Pada Laju Pertumbuhan Ikan Lele Dumbo (Clarias gariepinus) I Putu Eka Mahendra; I Wayan Arthana; Ayu Putu Wiweka Krisna Dewi
Bumi Lestari Journal of Environment Vol 22 No 1 (2022)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2022.v22.i01.p02

Abstract

Aquaculture is one of the efforts made to increase fishery production at present and in the future. One type of freshwater aquaculture that is a leading commodity and is widely cultivated by the community is catfish. Different feeding effect on the growth of African catfish fry. This study used 3 different treatments, A feeding 100% silk worms, B feeding 100% maggot and the last C feeding 50% silk worms and 50% maggot.This study aims to determine the specific growth rate, feed conversion ratio (FCR) and Survival rate (SR) in catfish fry fed different feeds of silk worms and BSF maggots Based on the results of research for 30 days from March 2021 - April 2021, the specific growth rate got the highest results, namely in treatment A, namely feeding 100% silk worms and the lowest was in feeding treatment with 100% maggot BSF. According to the treatment given, the results of the growth rate obtained were treatment A of 4.52%, treatment B of 4.13%, treatment C of 4.39%. The lowest FCR results were found in the feeding of 100% silk worms and the highest in the treatment of feeding 100%. The results of the Feeding Conversion Ratio (FCR) or the feed conversion ratio obtained were treatment A which was 1.12, treatment B was 1.68, treatment C of 1.18. In the SR parameter, the highest results were obtained in treatment A, namely feeding 100% silk worms and the lowest in treatment B, namely feeding 100% maggot BSF. The results of the survival rate in this study were 79% in treatment A, treatment B 75%, treatment C 70%.
Analisis Kelayakan Finansial Wisata Air Terjun Kanto Lampo di Kabupaten Gianyar Wayan Putri Prakanti Karya; I Wayan Restu; Ni Putu Putri Wijayanti
Bumi Lestari Journal of Environment Vol 22 No 1 (2022)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2022.v22.i01.p03

Abstract

Gianyar Regency has interesting tourist objects, one of which is Kanto Lampo Waterfall, located in Banjar Kelod Kangin, Beng Village, Gianyar District, Gianyar Regency. The origin of the name Kanto Lampo is that there are many Kanto Lampo trees that grow around the river. Supporting infrastructure facilities currently available at Kanto Lampo Waterfall are the availability of a reception office, gazebo/bale bengong, toilets, changing rooms/rinsing rooms, payment counters, bathing pools, food vendors, and a fairly large parking area. The number of tourist visits to the Kanto Lampo Waterfall tourist attraction from 2015 was 10,170 people and continued to increase every year until 2019 as many as 51,810 people. The research on the financial feasibility analysis of Kanto Lampo Waterfall tourism aims to determine the economic feasibility of a waterfall development business based on an economic-financial approach. This research took place from January to February 2021. Primary data were obtained from interviews, direct observation, and documentation in the field. Based on the data obtained, the business of the Kanto Lampo Waterfall tourist attraction obtained an NPV value for 10 years of investment of IDR 1,137,263,458,-. The IRR value is 38%. The BCR value obtained is 3.8. and the value of the Payback Period (PP) of 1.3 years shows that the payback period for the waterfall business is relatively fast. Keywords: Analysis; Beng; Economics; Feasibility; Tourism
Pemanfaatan Ikan Red Devil (Amphilophus sp.) Sebagai Pakan Alternatif dalam Budidaya Ikan Nila (Oreochromis niloticus) I Kadek Mega Mega Dhyana Putra; Pande Gde Sasmita Julyantoro; Gde Raka Angga Kartika
Bumi Lestari Journal of Environment Vol 22 No 1 (2022)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2022.v22.i01.p04

Abstract

Penelitian ini bertujuan untuk mengetahui pertumbuhan dan tingkat kelulushidupan serta perbedaan rasio konversi pakan ikan nila yang diberikan pakan rucahan ikan red devil dengan persentase berbeda. Penelitian dilaksanakan pada kurun waktu 56 hari, menggunakan tiga perlakuan yakni A (kontrol) pemberian pakan 100% pelet, perlakuan B pemberian pakan rucah ikan red devil 100%, dan perlakuan C pemberian pakan pelet 50% + rucahan ikan 50%. Padat tebar ikan dalam penelitian ini adalah 20 ekor/50 liter air dengan ukuran ikan 4-6 cm yang diperoleh dari petani pendederan di daerah Bangli. Parameter yang diamati dalam penelitian ini adalah pengukuran panjang ikan, laju pertmbuhan spesifik, kelulushidupan, rasio konversi pakan dan kualitas air. Hasil dari penelitian yang telah dilaksanakan menunjukkan bahwa perlakuan C memberi hasil yang tertinggi dan berbeda nyata secara stastistik (P<0.05) pada pertumbuhan panjang mutlak dan kelangsungan hidup ikan. Hasil pengukuran parameter kualitas air selama penelitian menunjukkan suhu berkisar 23.80-24.18oC, nilai pH rata-rata 7.03 dan DO pada kisaran 5.82-6.13 mg/L. Nilai kualitas air ini masih berada dalam rentang optimum untuk pemeliharaan ikan nila. Kata Kunci: Ikan Nila; Ikan red devil; Laju Pertumbuhan

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