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Munawar Khalil
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khalil@unimal.ac.id
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joms@unimal.ac.id
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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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Kota lhokseumawe,
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INDONESIA
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 1, Issue 3 (November, 2024)" : 5 Documents clear
Advances in understanding physical and biological controls on eggs and larval distribution in Pacific fisheries: A review Sumon, Md Afsar Ahmed; Hartono, Sugeng; Amran, Ramzi H.; Santanumurti, Muhammad Browijoyo; Khan, Saadullah Jan; Akther, Sajia; Gabr, Mohamed Hosny; Linh, Nguyen Vu; Doan, Hien Van
Journal of Marine Studies Volume 1, Issue 3 (November, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/joms.v1i3.18627

Abstract

The early stages of fish, comprising eggs and larvae, are exceptionally fragile and sensitive to environmental dynamics and climate change. Pacific Ocean (PO) currents play an important role in shaping the distribution of marine organisms, influencing global climate patterns, heat distribution, coastal temperatures, and nutrient redistribution. These currents reveal significant changes within the climate system. Their variability across different timescales can be attributed to the complex interplay of physical forces. These currents are subjected to diverse anthropogenic factors, exerting detrimental effects on the dispersal of fish larvae. Furthermore, climate change variables, including alterations in tropical PO temperature associated with the ENSO cycle, Atlantic Nino modes influencing equatorial Atlantic temperature, changes in ocean salinity, polar ice cap melting, increasing greenhouse gases, marine heatwaves, and fluctuations in subsurface flows, directly impact the distribution, abundance, and species composition of early life stages. Major Pacific fisheries, such as those targeting Pacific sardines, saury, and anchovies, undergo population booms and declines due to significant alterations in the current dynamics of currents and fronts within the PO. The anticipated intensification of the ENSO cycle, characterized by more frequent and severe El Niño (warm) and La Niña (cold) events as a result of climate change, is expected to significantly impact the early developmental stages of important commercial fish stocks regularly. This review synthesizes the current understanding of the physical and biological parameters driving changes in ocean currents and their implications for early fish dispersion, emphasizing the critical need for research in this area to inform global conservation efforts, fisheries management, and food security.
Structural characterization and species composition of mangrove vegetation in Lhokseumawe, Indonesia: Insight from multivariate analysis Putri, Adinda Aulia; Erlangga, Erlangga; Syahrial, Syahrial; Ezraneti, Riri; Nufus, Hayatun; Leni, Yusyam; Rolin, Febrina
Journal of Marine Studies Volume 1, Issue 3 (November, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/joms.v1i3.19052

Abstract

The structure of the plant community significantly influences the equilibrium of the surrounding environment, affecting the trophic interactions within its ecosystem. The investigation of mangrove vegetation in Cut Mamplam village was carried out in September 2021 to determine the condition and structural characteristics of the mangrove ecosystem by multivariate analysis. The mangrove vegetation in Cut Mamplam Village was sampled at three observation stations by establishing a transect parallel to the coast. Subsequently, the community structure was examined and assessed using cluster analysis and nonmetric multidimensional scaling using the PRIMER v7 software. The study findings indicate that the mangrove forest vegetation in Cut Mamplam Village consists of five species from three families. Avicennia alba, A. lanata, Bruguiera gymnorrhiza, Rhizophora mucronata and Sonneratia alba. The highest density of mangrove vegetation was observed in A. alba in all categories: trees (616.67 ind/ha), seedlings (833.33 ind/ha) and saplings (66666.67 ind/ha). Additionally, the highest important value index (IVI) was recorded in A. alba for all categories: trees (232.16%), seedlings (102.40%), and saplings (228.43%). A similarity of mangrove density between species was noted at 60%, resulting in the formation of two distinct groups. Regarding the basal area, the vegetation stands of A. alba and A. lanata exhibited the highest values (280.61 and 266.03 m2/ha, respectively). The similarity of basal area among the observed species was 20%, resulting in the formation of two distinct groups. Additionally, Station II, classified as having mature vegetation, demonstrated a maturity similarity of 80% between observation stations.
Biometric and condition index of Anadara antiquata (Bivalvia: Arcidae) from the intertidal area of Lhokseumawe, Indonesia Kafi, Siti Umayyah; Zulfikar, Zulfikar; Khalil, Munawar
Journal of Marine Studies Volume 1, Issue 3 (November, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/joms.v1i3.18759

Abstract

Although the biometric characteristics and condition indices of bivalves, including Anadara antiquata, are well-studied, their relationship with environmental factors in tropical intertidal zones, remains poorly understood. This study examined the biometric characteristics and condition index of the cockle A. antiquata in relation to water quality parameters in the intertidal zone of Lhokseumawe, Indonesia, from August 2014 to March 2015. Monthly sampling of 50 cockles during low tide in the estuarine reservoir measured cockle weight, shell length, shell height, condition index, and water quality parameters, including temperature, pH, and salinity. Strong positive relationships were observed between shell length and cockle weight (R² = 0.847, r = 0.920), shell height and shell length (R² = 0.861, r = 0.927), and cockle weight and shell height (R² = 0.887, r = 0.941). Allometric models indicated negative allometry in these relationships. Analysis of the condition index revealed continuous dribble spawning throughout the study period. Water quality parameters included temperatures ranging from 28.2 - 32.2 °C (mean 30.02 ± 1.62 °C), salinity levels between 34.4 - 35.5 ppt (mean 35.08 ± 0.32 ppt), and pH values of 6.77 - 6.86 (mean 6.82 ± 0.03), reflecting favourable environmental conditions for cockle growth and reproduction.
Abundance and distribution of anthropogenic marine litter in Hatiya and Nijhum Dwip Island, Bangladesh Mahmud, Md. Nasim; Rahman, Md. Obaidur; Jahan, Roksana
Journal of Marine Studies Volume 1, Issue 3 (November, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/joms.v1i3.19198

Abstract

Marine litter is commonly found throughout the oceans, and creates a significant threat to the marine ecosystem. The purpose of the study was to investigate the abundance and distribution of marine litter in Hatiya and Nijhum Dwip Islands, Bangladesh during the post-monsoon and to determine beach cleanliness using the clean-coast index (CCI). A 100-meter line transect was established at each beach, divided into five sections of 20 meters each and positioned perpendicular to the shoreline at the water's edge. A total of 11 types of marine litter were observed. Namar Bazar, Nijhum Dwip Sea beach showed a higher density of litter (0.30 items/m2) compared to Kamalar Dighi, Hatiya (0.13 items/m2). Over 70% of marine litter originated from land-based sources. Plastics were abundant litter at the Kamalar Dighi (46.66%) and Namar Bazar (61.29%). Different size ranges of marine litter were exhibited at the Kamalar Dighi (1.27-25.4 cm) and Namar Bazar (2-74 cm). Based on the mean CCI value, Hatiya and Nijhum Dwip beaches were classified as clean (2.4) and moderate (4.96), respectively. This study, therefore, suggested the conceptual policy framework including short-term (i.e., cleanness of beaches, create awareness, establishment of storages, etc.) and long-term management approaches that would be implemented for sustainable management of marine litter to ensure the conservation of marine biodiversity in the Hatiya and Nijhum Dwip Island
Assessment of microplastics contamination in selected coral species from Kuantan coastal waters off the South China Sea Miskon, Fuad; Sharulnizam, Shamin Amarul; Ghazali, Intan Noor Munira; Mohd Hanapiah, Muhammad Faiz; Rosli, Muhammad Khairulanwar
Journal of Marine Studies Volume 1, Issue 3 (November, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/joms.v1i3.17929

Abstract

Microplastics, defined as plastic particles less than 5 mm in size, pose a significant environmental threat and have been detected across various terrestrial and marine ecosystems. This study explores the abundance, types, and potential impact of microplastics in corals from the coastal waters of Kuantan, Malaysia. Using Fourier Transform Infrared (FTIR) spectroscopy, three coral species - Acropora, Montipora, and Porites - were collected from two locations, Pulau Ular and Cherok Paloh, to identify and quantify the microplastics contamination. A total of nine samples underwent a digestion process to isolate and analyze microplastics from both external and internal structures. The results revealed that Acropora species exhibited the highest microplastics abundance, while Montipora and Porites showed similar but comparatively lower contamination levels. The identified polymers included polyacrylamide, polyvinyl, polyethylene, polyamide, styrene, polypropylene, methyl vinyl ether, and polystyrene, with polyacrylamide being the most prevalent, constituting 33.33% of the total microplastics detected. These findings align with previous studies and underscore the potential adverse effects on coral feeding mechanisms, energy intake, and overall health. This study highlights the significance of ongoing research to refine microplastic identification methods and to develop targeted strategies to mitigate their impact on marine ecosystems.

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