Morphological Observation, Identification and Isolation of Tropical Marine Microalgae from Ambon Bay, Maluku

Abstract

Microalgae are photosynthetic microorganisms that are widely distributed in waters. They have the potential as an alternative source of pigments, lipids, proteins, and carbohydrates. In this study, identification and isolation of single-cell microalgae from Ambon Bay were carried out by serial dilution method and inoculation of the culture by appearance/spread on the surface of the solidified agar medium. The results showed that the waters of Ambon Bay have physical parameters such as temperature, pH, salinity, and TDS, which are still within the threshold specified in the seawater quality standard for biota. The water conditions at the 10 sampling locations had different salinity, pH, temperature, and TDS. This condition affects the distribution of microalgae in the waters in Ambon Bay. The image from light microscopy shows that there are 27 species of microalgae scattered in the waters of Ambon Bay, which belong to the classes Chlorophyceae, Flagilariophyceae, Bacillariophyceae (diatoms), Coscinodiscophyceae, and Dinophyceae. Microalgae isolation obtained five species (single-cell) including four species from the class Bacillariophyta (Navicula sp, Nitzschia sp, Cyclotella sp) and one species from the class Chlorophyta (Chlorella sp).

Investigation of Microplastic Exposure to Marine Fish in the Marine Tourism Area of Makassar City

“…Based on the environmental indicator data from the sampling point, it is known that the condition of the waters is fish habitat in KWB Makassar City. These conditions are relatively the same as the marine environment in general, meaning that the marine environment is conducive and of good quality for the life of various types of marine biota, especially fish as a source of protein which is very much needed by the community (Telussa, Hattu, & Sahalessy, 2022;Ismail Marzuki, Noor, Nafie, & Djide, 2018). The type of fish selected as a physical sample and associated with habitat indicators is healthy, but of course, it is necessary to conduct a more detailed investigation related to the quality of the fish, whether it is free from material contamination that can trigger health problems in the biota itself and on human health, in particular.…”

Produksi Bioetanol dari Mikroalga Laut Ambon Chlorella sp. Galur TAD

“…Dengan demikian, produksi bietanol berbahan mikroalga hijau (Chlorella sp.) yang diambil dari Teluk Ambon bagian dalam [10] menjadi organisme model untuk dieksplorasi sebagai bahan baku bietanol. Dalam penelitian ini Chlorella sp.…”

Bioethanol Production From Tropical Marine Microalgae Ambon Bay Navicula sp. of The Inner Ambon Bay Strain

“…The development of renewable energy sources is a fundamental aspect of future energy availability sustainability. Alternative fuel sources that have great potential to be developed come from biological resources because they contain various potential components ( (Yusuf, Nafie, & Dali, 2016;Damayanti, Azmilia, Ainun, Amin R., & Nurdin, 2021;Hasti et al, 2022;Telussa, Hattu, & Sahalessy, 2021). One type of biological resource developed is biofuels, such as bioethanol.…”