cover
Contact Name
Renanda Baghaz Dzulhamdhani Surya Putra
Contact Email
jeest@ub.ac.id
Phone
+6285791322526
Journal Mail Official
jeest@ub.ac.id
Editorial Address
Direktorat Riset dan Pengabdian kepada Masyarakat (DRPM), Lantai 7, Universitas Brawijaya Jl. Veteran Malang, 65145, Jawa Timur, Indonesia
Location
Kota malang,
Jawa timur
INDONESIA
Journal of Environmental Engineering and Sustainable Technology
Published by Universitas Brawijaya
ISSN : 23563109     EISSN : 23563117     DOI : https://doi.org/10.21776/ub.jeest
JEEST is an interdisciplinary and refereed journal, addresses matters related to environmental engineering and sustainable technology. Its range of themes encompasses ecological studies, field research, empirical work and descriptive analyses on topics such as environmental systems, environmental policies and politics, environmental legislation, environmental impact assessment, air, water and land pollution, water and energy related issues, engineering innovations, development, technical solutions and sustainability technology. Other matters related to or which influence the international debate on sustainability will be also considered.
Articles 3 Documents
Search results for , issue "Vol 8, No 1 (2021)" : 3 Documents clear
SURVEY BOAT PROTOTYPE DESIGN FOR REMOTE AREA Furqon, Muhammad Tanzil; Kadhafi, Muammar; Sunardi, Sunardi; Rijal, Seftiawan Samsu; Tsani, Muhammad Dafa'anh Murya
Journal of Environmental Engineering and Sustainable Technology Vol 8, No 1 (2021)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2021.008.01.3

Abstract

The water survey activities in remote areas have many challenges, such as cost, transportation to location, access to the location, boat for water survey, manpower, and other factors. This research proposes the method of water survey to overcome the difficulties encountered in surveying in remote areas. The mini boat prototype was designed and fabricated by using a control system to operate in the water. The propulsion power prediction was carried out, by comparison, the similarity to the fullscale ships with 9.5 knots of velocity. Furthermore, the wave-making resistance was simulated by software and confirmed by the trial. The trial has shown that the boat was going well on the water and the measurement equipment in a safe condition. 
THE BIOLOGICAL ASPECTS OF DOMINANT SHARKS AND RAYS LANDED IN BRONDONG FISHING PORT, LAMONGAN, EAST JAVA Harlyan, Ledhyane Ika; Almawadah, Yulia Ainun; Lelono, Tri Djoko
Journal of Environmental Engineering and Sustainable Technology Vol 8, No 1 (2021)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2021.008.01.2

Abstract

Shark and ray fishery issues raised in Indonesia as some species have been listed in the IUCN red list. In relation to the conservation of some shark and ray species, critical information is required related to several biological aspects to assure its fishery sustainability. This study was conducted in Brondong Fishing Port in February – March 2020. Length, weight, and maturity level data were collected from 272 shark individuals and 267 ray individuals. Several analyses were performed, such as length-weight relationship analysis, sex ratios, and maturity level analysis. The study found 18 species listed in the IUCN red list were dominantly composed of Carcharias taurus and Dasyatis kuhlii. Both species have negative allometric, while the sex ratios showed that the ratio of the number of male and female individuals for shark and ray are 1:5 and 1:2, respectively. The maturity level of male individuals for Carcharias taurus pointed that 33% full calcification (FC), 17% non-full calcification (NFC), and 50% non-calcification (NC), while for Dasyatis kuhlii resulted that 66% FC, 28% NFC, and 6% NC. It is concluded that the biological aspects of the dominant species indicated that most individuals were in a critical state, thus it is required to monitor and control their fishing pressures.
RELATIONSHIP CORAL REEF COVER WITH REEF FISH ABUNDANCE IN THE WATERS OF MIANG ISLAND, SANGKULIRANG, KUTAI EAST, EAST KALIMANTAN Luthfi, Oktiyas Muzaky
Journal of Environmental Engineering and Sustainable Technology Vol 8, No 1 (2021)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2021.008.01.1

Abstract

Miang Island is located at coordinates 118° 0' 20" E - 0° 44' 0" N which is administratively in Sangkulirang District, East Kutai Regency, East Kalimantan. Coral reefs on Miang Besar Island have an area of ± 218.8 ha, with the best coral cover in the waters of Sangkulirang District and one of the best in East Kutai Regency. Reef fish have an active role in coral reef ecosystems because they can be indicators of the health of coral reef ecosystems and can be used to measure the level of suitability of their habitats. If the condition of the coral is damaged, the number of reef fish that inhabit it will decrease because the habitat does not meet the availability of food ingredients and the loss of breeding grounds. Coral reef data retrieval using the UPT method and reef fish using the UVC method. The percentage of coral cover on Miang Island is in the moderate to bad category where the average percentage of cover is 21% which is in poor condition (<25%). The total abundance of fish at station 1 was 0.45 ind./m3, station 2 was 0.10 ind./m3, station 3 was 0.06 ind./m3, and station 4 was 0.09 ind./m3. The genus Acropora is the dominant coral genus at all stations and the Pomacentridae family is the dominant family of reef fish at all stations. The relationship between the percentage of coral cover and the abundance of reef fish is very strong with an R2 value of 72.13%.

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