Article Per Year (5 Year)
p-Index From 2020 - 2025
0.408
P-Index
This Author published in this journals
All Journal Journal of Marine Resources and Coastal Management
Wahyunita, Fitrana
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Cocofoamblocks: The potential of styrofoam and coconut fiber as paving blocks Asarudin, Tifa Alfatiha; Wahyunita, Fitrana; Anggraini, Sarah Dwi
Journal of Marine Resources and Coastal Management Vol. 5 No. 1 (2024)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v5i1.2109

Abstract

Styrofoam waste is an inorganic material that cannot decompose and will continue to accumulate if not recycled. Styrofoam has relatively light properties, can withstand heat, and is resistant to corrosives. In coastal and marine environments, styrofoam waste can cause significant pollution and damage to marine ecosystems. However, when used in the production of paving blocks, styrofoam waste has a disadvantage: it results in a low compressive strength value. To address this, coconut fibers are used to strengthen the paving blocks because coconut fibers have tensile strength, making them durable, lightweight, and elastic. The purpose of this study was to determine the mechanical properties of paving blocks made with a mixture of styrofoam and coconut fibers (Cocofoamblocks). The method used in this study is a quantitative approach with experimental research. The results of the water absorption test show that the absorption rates of the Cocofoamblocks is in the range of 17.55% to 19.28%. This indicates that the Cocofoamblocks can be categorized as suitable for use. The results of the compressive strength test show that the average value for sample BT1 is 0.5 MPa, while samples BT2 and BT3 have values of 1.1 MPa and 2.4 MPa, respectively. Based on these results, it is evident that the compressive strength of the Cocofoamblocks can be categorized as unsuitable for use. This is because the Cocofoamblocks lack coarse aggregates, and the excessive amount of water used in the mixture during production further reduces their compressive strength. This study contributes to efforts to reduce waste pollution in coastal and marine areas, as well as to creating environmentally friendly solutions that can enhance the sustainability of development in coastal regions.
Density of gastropods and bivalves in coral reefs of Gili Island, Gresik Regency, Indonesia Wahyunita, Fitrana; Fahmi, M. Yunan
Journal of Marine Resources and Coastal Management Vol. 5 No. 2 (2024)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v5i2.2295

Abstract

Gastropods and bivalves play a crucial role in the marine food web within coral reef ecosystems. This study aimed to identify gastropod and bivalve species and analyze their density in the coral reef ecosystem of Gili Island, Gresik Regency, East Java. Sampling was conducted using the belt transect method (100 meters in length and 5 meters in width), placed parallel to the shoreline at three selected research stations. A total of 19 individuals, representing two families of gastropods and bivalves, were identified. Species density ranged from 0.005 to 0.035 individuals/m², while relative density values ranged from 11% to 78%. The results indicate that the density and distribution of gastropods and bivalves in Gili Island waters are influenced by substrate types and water quality parameters.
Co-Authors Anggraini, Sarah Dwi Asarudin, Tifa Alfatiha Fahmi, Muhammad Yunan