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93 articles for “Marine”
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Research ArticleOpen accessIn the abstractToxicity of Dinoflagellate (Gonyaulax verior) from Makassar Strait Waters on Medaka Fish (Oryzias javanicus) Embryo DevelopmentNita Rukminasari, Khusnul Yaqin, Jamaluddin Fitrah AlamThis study investigates the toxic effects of the dinoflagellate Gonyaulax verior on the embryonic development of medaka fish (Oryzias javanicus) sourced from four distinct aquatic environments in the Makassar Strait. Given the increasing presence of harmful algal blooms in marine ecosystems, understanding the impact of toxic dinoflagellates is crucial for assessing risks to fish populations. Embryos were exposed to varying … …OnLine Journal of Biological Sciences, Vol. 25, Issue 3 · 20 Nov 2025 · 2,127 accessesView PDFCite
Research ArticleOpen accessIn the abstractExploring the Synergistic Effects of Agitation on the Interaction Between Nanoparticles of Polyethylene and Benzophenone in Microalgae Tetraselmis sp.Rafaela Luiza Dias Da Cunha, Camyla Lais Costa Leal, Lycia Brito-GitiranaAebi, H. (1984). Catalase in Vitro. In Methods in Enzymology (1st ed., Vol. 105, pp. 121–126). Academic Press. https://doi.org/10.1016/s0076-6879(84)05016-3 Bannister, J. V., & Calabrese, L. (1987). Assays for Superoxide Dismutase. Methods of Biochemical Analysis, 32, 279–312. https://doi.org/10.1002/9780470110539.ch5 Camacho, F. G., Gómez, A. C., Sobczuk, T. M., & Grima, E. M. (2000). Effects of Mechanical and Hydrodynamic Stress in Agitated, Sparged … …American Journal of Environmental Sciences, Vol. 19, Issue 5 · 28 May 2024 · 4,822 accessesView PDFCite
Research ArticleOpen accessIn the abstractSpatial-Dynamics of Trace Metals Accumulation and Physicochemical Characteristics in Ikpukulu-Ama Creeks, Rivers State, NigeriaDavies Ibienebo Chris, Khang Wen Goh, Davies Imachrist Ibienebo et al.The study examines the spatial-dynamics variability of water parameters and trace metal concentrations between January and June 2023 at the Ikpukulu-Ama sites of the Bonny River, Nigeria. Key parameters analyzed include temperature, salinity, pH, transparency, dissolved oxygen, and trace metals (Ni, Pb, Cd, Cu, Zn) across three sites. The highest temperature, 32.56°C, was recorded at Site 2, indicating potential thermal … …OnLine Journal of Biological Sciences, Vol. 26, Issue 2 · 29 Jul 2026 · 499 accessesView PDFCite
Research ArticleOpen accessIn the abstractEnhanced Immunity of Hybrid Grouper (Epinephelus sp.) Against Viral Nervous Necrosis Using a Recombinant Protein Nanovaccine from Chlorella VulgarisUun Yanuhar, Herly Evanuarini, Heru Suryanto et al.Hybrid Grouper (Epinephelus sp.) is an important export commodity in marine aquaculture, yet Viral Nervous Necrosis (VNN) remains a major threat. Nanovaccines are a type of vaccine developed by combining vaccine ingredients with silver nanoparticles and recombinant protein from Chlorella vulgaris. These formulations are designed to effectively boost the body's immune system response to prevent disease infection and destroy pathogenic … …OnLine Journal of Biological Sciences, Vol. 25, Issue 3 · 22 Nov 2025 · 2,156 accessesView PDFCite
Research ArticleOpen accessIn the abstractScreening and Characterization of Sponge-Associated Bacteria Producing Bioactive Compounds Anti-Vibrio sp.Aris Tri Wahyudi, Jepri Agung Priyanto, Wenang Maharsiwi, Rika Indri AstutiIn Indonesia, vibriosis is the main disease in shrimp. This disease is caused by Vibrio sp that may decrease the productivity of shrimp cultivation. Thus, exploration for new bioactive compounds as vibriosis biocontrol agent is necessary. Marine sponge-associated bacteria is one of many sources for bioactive compounds. The aim of this study was to screen marine sponge-associated bacteria producing anti-Vibrio … …American Journal of Biochemistry and Biotechnology, Vol. 14, Issue 3 · 5 Oct 2018 · 10,363 accessesView PDFCite
Research ArticleOpen accessIn the abstractBibliometric Analysis of Global Research Trends on Invertebrate and Conservation Studies from 1990-2022Emrobowansan Monday Idamokoro, Augustine Suh NibaThe current paper presents findings on research studies in line with conservation and invertebrates (1990-2022) using bibliometric techniques in R studio software. Results obtained from the study among others include; key authors, nations' citations and publication numbers, affiliations, journal sources, and important keywords that are often used by authors in the field. A total of 417 pieces of research literature … …OnLine Journal of Biological Sciences, Vol. 25, Issue 1 · 12 Oct 2024 · 5,117 accessesView PDFCite
Research ArticleOpen accessIn the abstractAnalysis of Land Cover Changes and Sustainable Reforestation in Sianjur Mula-Mula District, Samosir Regency, IndonesiaBudi Utomo, Rezky Nizar, Rizky Wahyudi et al.The increase in population and technological advances have had a significant impact on land use changes. there are changes in land cover 2017-2022 in the local ecosystem. there have been significant changes but can still be maintained. This is to prevent the extinction of species such as fish, land animals and other marine animals. Changes in land cover that are … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 6 Jun 2024 · 5,187 accessesView PDFCite
Research ArticleOpen accessIn the abstractUltrastructural Morphology of the Muscle System Organization in the Trematode Typhlocoelium cucumerinumIrina Yurievna Chidunchi, Ainagul Balgauovna Kaliyeva, Natalya Petrovna Korogod et al.Trematodes, also known as flatworms, are a diverse group of parasitic organisms that live in a variety of ecosystems, from freshwater to marine habitats. Their complex life cycle often involves intermediate and definitive hosts and multiple developmental stages. Trematodes have unique morphological features that allow them to adapt, move and parasitize within host tissues and organs. The parasitic lifestyle of … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 1 Jun 2024 · 5,116 accessesView PDFCite
Research ArticleOpen accessIn the abstractIsolation and Characterization of Superior Symbiotic Bacterial Isolates from the Oenggae Sea with Potential as AntibacterialLukas Pardosi, Adelya Irawan Manalu, Charles Venirius LisnahanSponges are one of the marine biota that have a symbiotic relationship with bacteria which can produce secondary metabolites as antimicrobials. The main aim of this research was to isolate and identify bacteria that had potential as antibacterials against multi-drug resistant test bacteria. The sponsor samples used in this research were Stylissa massa, Salvador Dali, and Angelas sp. The methods … …OnLine Journal of Biological Sciences, Vol. 24, Issue 3 · 26 Mar 2024 · 5,057 accessesView PDFCite
Research ArticleOpen accessIn the abstractSequence Stratigraphic Analysis from Well Logs of an X-Field, Niger Delta, NigeriaGodwin Omokenu Emujakporue, Alphonsus Joseph EyoThe sequence stratigraphic analysis of the area was studied using well log information in order to determine the lithostratigraphy, chronostratigraphy, possible reservoir sands, age and depositional environment of the study area for opportunities that will support exploration program. The depositional environment penetrated by the wells interpreted from log signatures gave three major facies association. The blocky and coarsening upward (funnel … …Current Research in Geoscience, Vol. 6, Issue 2 · 11 Jul 2016 · 13,979 accessesView PDFCite