Musrifin Galib
Department of Marine Science, Faculty of Fisheries and Marine, Universitas Riau

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ANALYSIS OF COASTAL VULNERABILITY IN AGAM REGENCY, WEST SUMATRA PROVINCE Betari Erlinda Prayitno; Mubarak Mubarak; Musrifin Galib
Asian Journal of Aquatic Sciences Vol 5 No 2 (2022): August 2022
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.5.2.257-263

Abstract

Natural factors such as geomorphology, waves, tides, coastal building materials, and altitude can have an impact on marine vulnerability. Coastal vulnerability is impacted by human activities such as logging of mangrove trees, tourism object activities, and manufacturing, in addition to natural influences. This study was carried out in February 2021. The goal of this study was to calculate the rate of change of the Agam Regency coastline from 2010 to 2020, as well as to map the level of vulnerability of the Agam Regency shore. According to the findings of the study. Pesisir Subdistrict, Agam Regency is classified into five levels of vulnerability, namely very not vulnerable, not vulnerable, moderate, vulnerable and very vulnerable. Very low to high levels of vulnerability can be found along the coast of Agam Regency. The annual accretion rate ranges from 0.12 to 15.98 m. The erosion rate ranges from 0.07 to 10.21 meters per year
Analysis of Sea Turtle Nesting Area in Pandan Island West Sumatra Masnawita Turnip; Syafruddin Nasution; Musrifin Galib
Jurnal Perikanan dan Kelautan Vol. 25 No. 3 (2020): October
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.25.3.172-178

Abstract

The research was conducted on February – March 2020 and located in Pandan Island with using survey method. The research aimed to analyze characteristic habitat of the physical and biological turtle nesting beaches, the distribution of turtle’s nests, and the microbial conditions of the turtle’s nests. The result showed that the length of beach was 1,379.4 m with average width of beach was 16.13 m. The average beach slope was 5.52 %. Substrate type dominated by sand substrate. The most abundant vegetation was ketapang tree (Terminalia catappa) and the predators discovered were monitor lizard and dog. There where 4 turtle nests were found, which was 3 nests of hawksbill turtles and 1 nest of green turtle. The average distance of nests from high tide line was 5.7 m with average distance between nest was 177.87 m. Respectively, the average of temperature, humidity, and depth of the nests were 29.58℃, 12.78%, and 53.3 cm. The average size of curve carapace length was 84.25 cm and average curve carapace width was 76.25 cm. The average number of eggs was 144 of each nest with average diameter of eggs was 3.35 cm