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Munawar Khalil
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Department of Marine Science, Universitas Malikussaleh. Jl. Universitas, Reuleut Main Campus, North Aceh, Province of Aceh, 24351, Indonesia.
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Journal of Marine Studies
Published by Universitas Malikussaleh
ISSN : -     EISSN : 3047406X     DOI : https://doi.org/10.29103/joms.v1i1
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Environmental Science
Journal of Marine Studies (JoMS) is an international peer-reviewed, open-access scientific journal dedicated to publishing novel research articles, critical-review articles, case studies, short communications, methodological advances, and data papers on all aspects of the marine environment that contribute to systematic knowledge of ocean system and the impact of human activities on them, vice versa. JoMS publishes high-impact scientific articles across the extensive spectrum of marine science, technology and integrated studies (listed on focus and scope). JoMS has a definite aim to distribute a high-quality scientific journal with free Internet-based access for researchers, stakeholders, and other interested people throughout the globe. Journal of Marine Studies publishes original research articles, opinion essays, case reports, short communications, and critical reviews on all aspects of the marine environment. JoMS publishes scientific articles across the extensive spectrum of the marine sciences, including: Oceanography Marine biotechnology Marine biodiversity and living resources Marine geographic information system and remote sensing Marine geology marine pollution Marine fisheries Mariculture Marine genomic Marine policy and law Marine management and conservation Marine technology Marine climatology Marine paleontology Coastal and estuarine dynamic Marine socio-economic Marine modelling Related topics constitute the key elements of papers Integrated studies that link gaps between marine science disciplines
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Oseanografi
Articles 5 Documents
 1 
Search results for , issue "volume 3, issue 2 (july, 2026)" : 5 Documents clear
Modeling microplastic transport and residence time in a tide-dominated Amazonian estuary: A case study in Guajará Bay – Pará, Brazil Matheus Pamplona Santiago; Thaís Angélica da Costa Borba; Marcio Machado Cintra; Marco Antônio Vieira Callado; Ana Hilza Barros Queiroz; Marcelo Rollnic
Journal of Marine Studies Volume 3, Issue 2 (July, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/joms.v3i2.26227

Abstract

This case study presents the first numerical simulation of surface microplastic transport in the Amazon region, using a hydrodynamic model coupled with a water quality model in Delft3D software. This research investigated the transport of microplastics released by the Tamandaré River into Guajará Bay waters (using observational data to parameterize released microplastics), together with an analysis of hydrodynamic transport timescales (i.e., renewal rate, age of continental water, and residence time). The renewal rate is the time it takes for the waters of the open boundary to wash the initial waters of the domain; the age of continental water corresponds to the lifetime (in days) of a water parcel from its entry at the fluvial boundary to control points; and residence time indicates how long a water parcel remains within a semi-closed estuarine body into which it was released. These indicators were analyzed jointly, enabling an integrated understanding of microplastic transport dynamics. The results show that the decrease in river discharge during the dry season increased the residence time and age of continental water, while reducing the renewal rate, prolonging the persistence of microplastics in Guajará Bay. During the wet season, the opposite pattern occurred. Seasonally, the residence time of Tamandaré River waters in the Bay varied from 8 to 32 days, requiring approximately 36 to 72 days to leave the domain. Although positive tidal asymmetry and marginal vegetation are common factors for plastic accumulation in estuarine environments, this study demonstrated that the morphological configuration (i.e., the slope of the bank relative to the channel and the riverbank bathymetry) was decisive for the local dispersal pattern. Two areas of temporary sinks were identified in this urban estuarine system: on the right bank of Guajará Bay (BG1) and on the right bank of the mouth of the Guamá River (RG).
Understanding the ecology and conservation of Jerdon’s sea snake (Hydrophis jerdonii Gray, 1849) Prachi Hatkar; Rohit Khatua; Chinnasamy Ramesh
Journal of Marine Studies Volume 3, Issue 2 (July, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/joms.v3i2.26522

Abstract

Hydrophis jerdonii (Jerdon’s sea snake) is a venomous and viviparous marine reptile widely distributed across the Indo-Pacific, including Indian waters. Despite its ecological importance, focused research on this species in India remains scarce. This review consolidates historical and contemporary literature (1849–2025) to assess the distribution, morphology, phylogeny, habitat, and conservation status of this species. A total of 75 publications were reviewed from databases such as Google Scholar, The Reptile Database, and the Biodiversity Heritage Library. Studies were categorised and analysed to quantify research emphasis across key ecological and biological parameters. Most studies (26%) addressed distribution, while only 3% focused on habitat ecology. The last confirmed live record of H. jerdonii in India dates to 2008 from the Mangalore coast, Karnataka, with subsequent findings limited to preserved specimens. Although listed as Least Concern by the IUCN, H. jerdonii faces increasing threats from bycatch and habitat degradation. The absence of recent field records underscores the urgent need for systematic surveys, ecological research, and molecular studies to reassess its current population status in Indian waters.
New records of family Pontellidae (Copepoda: Calanoida) from the northern Arabian Sea Shumaila Mubarak; Qadeer Muhammad Ali; Hamdy Abo-Taleb
Journal of Marine Studies Volume 3, Issue 2 (July, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/joms.v3i2.26615

Abstract

This study reports six (06) new records of Pontellidae copepods from northern Arabian Sea of Pakistan: Labidocera kuwaitiana, Labidocera pavo, Labidocera aff. euchaeta, Pontella danae, Pontellopsis herdmani and an unidentified Pontellopsis sp. Specimens were collected from mangrove areas of Shahbunder Creek, Phitti Creek, and Sonmiani Bay during seasonal monsoon intervals from April 2018 to January 2020. Identification was based on morpho-taxonomic examination of appendages using light microscopy and comparison with published taxonomic literature. Voucher specimens deposited in the Marine Reference Collection & Resource Centre, University of Karachi for future references. With these additions, the total number of Pontellidae species known from Pakistan brings the total to 17. The occurrence of species previously documented in the Arabian Gulf and Indian Ocean suggests that seasonal monsoon currents and coastal upwelling may facilitate their dispersal into Pakistani waters. By filling gaps in regional taxonomy, this study highlights the ecological importance of mangrove-associated habitats and emphasizes the need for continued surveys and molecular approaches to better understand copepod diversity and distribution in the northern Arabian Sea.
Governing sea level rise: Evaluating the applicability of China’s coastal adaptation policies to Indonesia Yasir Arafat; Nur Aini Iswati Hasanah; Affandy Hamid; Puji Setianingsih; Afan Allail Rofikha
Journal of Marine Studies Volume 3, Issue 2 (July, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/joms.v3i2.27368

Abstract

As an Asian-Pacific archipelagic country, Indonesia is increasingly vulnerable to the impacts of sea level rise and coastal hazards. Amid growing risks to infrastructure and water resources, assessing the applicability of coastal adaptation policies from international experience to the Indonesian context is urgent. This paper examines China’s coastal adaptation policies and identifies the critical factors required for their successful adaptation to the Indonesian governance system. A comparative qualitative case study design was employed and guided by the Dolowitz and Marsh policy transfer framework. The analysis systematically evaluates the applicability of three strategic dimensions, i.e., coastal protection strategies, ecosystem-based adaptation initiatives, and the integration of marine spatial planning. The findings indicate that China has implemented these three dimensions through an integrated and systematic governance approach. However, their effective application in Indonesia will depend on overcoming several governance barriers. Critical success factors identified include the necessity for robust intergovernmental coordination, the expansion of fiscal capacity, more stringent enforcement of spatial planning regulations, and the integration of coastal monitoring and data systems. Direct policy replication is unlikely to be effective due to systemic differences between the two countries. Instead, the study advocates for a hybridized approach, characterized by selective adoption and contextual adaptation to Indonesia’s unique institutional and socio-political conditions. This study contributes to the climate governance discourse by providing an empirical bridge between policy transfer theory and adaptation strategies within a comparative Global South setting.
Living large benthic foraminifera (LBF) on macroalgae at Mandalika, Lombok, Indonesia Sri Devi Ananda; Imam Bachtiar; Lalu Japa
Journal of Marine Studies Volume 3, Issue 2 (July, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/joms.v3i2.27468

Abstract

Intertidal large benthic foraminifera make a large contribution to the sustainability of reef accretion in intertidal zones and sediment supply on the beach of the Special Economic Zone (SEZ) of Mandalika in the southern part of Lombok Island. Studies on these unicellular animals are rare in Indonesian waters. The present study aimed to describe living foraminifera at the intertidal zone of the Serinting Beach and their association with macroalgae. Data on the living foraminifera attached to macroalgae were collected using the transect quadrate method, 45 quadrates (1 sqm size) along three transects (⁓400 m length). The results revealed that three species living attached to macroalgae are Schlumbergerella floresiana, Schlumbergerella neotetraedra, and Sphaerogypsina globulus. The most abundant foraminifera species found attached to macroalgae was S. floresiana. A total of 20 species of macroalgae were found to be colonized by foraminifera. Five out of seven macroalgae genera were heavily inhabited by foraminifera: Chondrus, Padina, Halimeda, Amphiroa, and Acanthophora. Among these five macroalgae genera, the abundance of foraminifera was not significantly different. There was a significant association between foraminifera species and macroalgae genera. All three Foraminifera species showed a high preference for Halimeda macroalgae. The study suggests that sustainable tourism management at the SEZ Mandalika should take the five macroalgae genera into account to maintain sediment supply and reef accretion and sustain life below water.

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