Abundant Food Supply Research Articles

Massive Outbreak of Aurelia coerulea in Geoje Bay, Korea

This study was carried out to elucidate the causes of massive outbreaks of Aurelia coerulea in Geoje Bay, Korea, from November 2022 to October 2023. Adult medusae consistently spawn with planulae, and the populations of A. coerulea in Geoje Bay could be categorized into current-year and overwintering populations. The current-year population began with the emergence of ephyrae in February and grew until October, while the overwintering population comprised a mixture of surviving current-year population and additional individuals that joined during the warm season. The size of the planulae are significantly larger than the annual average during the cold season. These results appear to be the energy accumulation of planulae for polyp formation under low water temperatures. Planulae form polyps within a temperature range of 5–25 °C, suggesting the possibility of year-round polyp recruitment. In Geoje Bay, the highest appearance rate of A. coerulea was in April (8.71 ± 12.5 ind. m−3), with ephyrae experiencing higher growth rates up to the young medusa stage. However, from April, a decline in zooplankton biomass resulted in reduced growth rates in adults, indicating that jellyfish growth was primarily regulated by food availability. Additionally, submersed oyster shells in oyster farms served as the main habitat for jellyfish polyps. A. coerulea populations were also characterized by the continuous spawning of planulae throughout the year. In conclusion, this study suggests that stable polyp habitats, abundant food supply during the initial developmental period of the population, and suitable ranges of water temperature were significant factors inducing the massive outbreak of A. coerulea in Geoje Bay, Korea.

Post-release dispersal and home range of translocated red deer in the Vojvodina province (Serbia)

Monitoring of 38 (12 male and 26 female) red deer translocated from Ivo Wildlife Park (Romania) to hunting ground "Bosutske Forest" (Vojvodina, Serbia) was conducted from 2017 to 2021. The red deer were translocated in lieu of the managing authority's efforts to counteract the effects of red deer losses due to catastrophic flooding in the region. All animals were ear-tagged, while 7 males and 10 females were fitted with GPS collars. A total of 2,288 valid signals were analyzed (565 from males and 1,723 from females). In addition, 1,333 sighting records were collected from eight observation posts (480 in 2019, 670 in 2020 and 183 in 2021). We determined the movements and spatial distribution of translocated animals in the new habitat and estimated their home range sizes. Home range was calculated using the minimum convex polygon method, while the core area was calculated using the kernel density estimator method. The greatest straight-line distance from the acclimatisation enclosure was essentially the same for both sexes (average 6.0 km for males and 6.4 km for females). A non-significant relationship existed between the number of days in captivity and the greatest straight-line distance, as well as between days in captivity and the core area of the home range. The estimated home range of males was 12.8 km2 (range 0.2‒36.1), smaller than that of females (20.6 km2, range 0.4‒68.7), but this difference was not statistically significant. Observations made independently showed mostly herds of 4 to 6 individuals (52.3%), while large herds (≥ 10 individuals) were rare. Participation of translocated and resident animals in mixed herds was common during the monitoring period (62.3%). Our results showed that a high level of acceptance of the new habitat and social cohesion between translocated and resident animals was achieved. We believe that this is due to two main reasons: firstly, the long-term stay in a large acclimatisation enclosure prior to release and secondly, year-round supplemental feeding coupled with an abundant natural food supply in this unique forest area also contributed to successful acclimatisation. Keywords: Cervus elaphus; population; habitat; home range size; red deer; management

The Evaluation of Use Photovoltaics (PV) in Renewable Energy Technology as Sustainability Strategies

The United Nations (UN) proposed the Sustainable Development Goals (SDGs) to make the earth peaceful and prosperous by 2030. Abundant water and food supply, sustainable energy consumption, climate change mitigation, and sustainable energy consumption are considered the keys to better sustainability. For example, the food sector is responsible for 30% of global energy consumption, 21-37% of greenhouse gas (GHG) emissions, and 70% of global water withdrawals. Integrating renewable energy into a country's energy mix largely depends on the implementation of renewable energy policies. Sustainably developed solar photovoltaic options to meet energy. The main focus is to achieve energy security and independence with special emphasis on solar energy, to drive transformative change towards widespread adoption of renewable energy. The research method uses a literature study and the findings are in the form of the direction of the Indonesian Government's policy setting, namely the National Energy General Plan (RUEN) which is the basis for regulation through Presidential Regulation Number 79 of 2014 with the aim of changing the increase in the national energy share to 23% by 2025. This regulation aims to create opportunities for PT PLN (Persero) customers in the household, business, government, social, and industrial sectors to be actively involved in the utilization and management of renewable energy in a sustainable manner and provide insight into the sustainability of solar energy, including environmental and economic development.

Mitochondrial DNA Genomes Reveal Relaxed Purifying Selection During Human Population Expansion after the Last Glacial Maximum.

Modern humans have experienced explosive population growth in the past thousand years. We hypothesized that recent human populations have inhabited environments with relaxation of selective constraints, possibly due to the more abundant food supply after the Last Glacial Maximum. The ratio of nonsynonymous to synonymous mutations (N/S ratio) is a useful and common statistic for measuring selective constraints. In this study, we reconstructed a high-resolution phylogenetic tree using a total of 26,419 East Eurasian mitochondrial DNA genomes, which were further classified into expansion and nonexpansion groups on the basis of the frequencies of their founder lineages. We observed a much higher N/S ratio in the expansion group, especially for nonsynonymous mutations with moderately deleterious effects, indicating a weaker effect of purifying selection in the expanded clades. However, this observation on N/S ratio was unlikely in computer simulations where all individuals were under the same selective constraints. Thus, we argue that the expanded populations were subjected to weaker selective constraints than the nonexpanded populations were. The mildly deleterious mutations were retained during population expansion, which could have a profound impact on present-day disease patterns.

Migratory behaviours are risk-sensitive to physiological state in an elevational migrant.

Accretion of body fat by animals is an important physiological adaptation that may underpin seasonal behaviours, especially where it modulates risk associated with a particular behaviour. Using movement data from male Sierra Nevada bighorn sheep (Ovis canadensis sierrae), we tested the hypothesis that migratory behaviours were risk-sensitive to physiological state (indexed by body fat). Sierra bighorn face severe winter conditions at high elevations and higher predation risk at lower elevations. Given that large body fat stores ameliorate starvation risk, we predicted that having small body fat stores would force animals to migrate to lower elevations with more abundant food supplies. We also predicted that body fat stores would influence how far animals migrate, with the skinniest animals migrating the furthest down in elevation (to access the most abundant food supplies at that time of year). Lastly, we predicted that population-level rates of switching between migratory tactics would be inversely related to body fat levels because as body fat levels decrease, animals exhibiting migratory plasticity should modulate their risk of starvation by switching migratory tactics. Consistent with our predictions, probability of migration and elevational distance migrated increased with decreasing body fat, but effects differed amongst metapopulations. Population-level switching rates also were inversely related to population-level measures of body fat prior to migration. Collectively, our findings suggest migration was risk-sensitive to physiological state, and failure to accrete adequate fat may force animals to make trade-offs between starvation and predation risk. In complex seasonal environments, risk-sensitive migration yields a layer of flexibility that should aid long-term persistence of animals that can best modulate their risk by attuning behaviour to physiological state.

Mammary Tumors in Dogs, Recent Perspectives and Antiangiogenesis as a Therapeutic Strategy: Literature Study

A particular type of tumor that is frequently detected in female dogs who are sexually active is a mammary tumor. Neoplasia results from DNA-based alterations in cell cycle regulating genes. The mammary gland is prone to the formation of tumors due to its dynamic structure. The development of this tumor is supported by numerous variables. It has been recently discovered that there is substantial evidence linking the BRCA2 gene to the process of cancer. Standard examination techniques, such as fine needle aspiration, histopathology, and immunohistochemistry, are used along with ancillary tests to determine the tumor type and degree of malignancy. The primary treatment option for malignant tumors is surgical resection followed by adjuvant chemotherapy; benign tumors necessitate surgical resection as well. Adjuvant therapy options include hormone therapy and non-steroidal anti-inflammatory medications. Tumor tissue undergoes angiogenesis as it grows and develops to accommodate the abundant supply of nutrients. Therefore, angiogenesis-inhibiting therapies can be utilized to halt the growth of tumor cells. A number of antiangiogenic medications are now being studied in clinical settings on humans, and several more are undergoing trials on animals. In addition to pharmaceuticals, viruses may be used as a therapeutic to block tumor angiogenesis.

Age Specific and Fertility Lifetable of <i>Callosobruchus Maculatus</i>(F.) on Chickpea

Pulse beetle (Callosobruchus maculatus) (F.) is a pernicious pest of different stored grain pulses and decrease the nutritional and economic values of the pulses, which can cause huge losses in terms of quality and quantity. The present study was conducted for determining the rate of multiplication of C. maculatus was conducted at ambient temperature and relative humidity under Palampur conditions on preferred host chickpea, Cicer arietinum. Under conditions of abundant space and food supply, population of C. maculatus increased with 0.03485 (r m ) and 1.035 (λ) per day. The population multiplied 1.276 times in one week and mean time for doubling the population was 19.88 days. True generation time was 63.07 days. Life expectancy of adult was 12.37 days. The results of the study pave ways to create awareness among researchers and farmers about the nature and extent of damage caused by the C. maculatesin chickpea.

A novel binary greater cane rat algorithm for feature selection

There is a surge in the application of population-based metaheuristic algorithms to find the optimal feature subset from high dimensional datasets. Many of these approaches cannot properly scale especially as they are expected to maintain two opposing goals: maximizing the accuracy of classification while at the same time minimizing the number of feature subsets selected. In this study, a novel binary greater cane rat algorithm (GCRA), inspired by intelligent nocturnal behavior of the GCR which significantly affects their foraging and mating activities. They leave trails to food sources, shelters, and water as they forage, and this information is kept by the dominant. Also, they split into male and female groups during mating season is during abundant food supply and near water source. This information is modeled into and effective method for selecting the optimal feature subset from high-dimensional datasets using two different approaches. Firstly, five variants of binary GCRA are developed using one each from the family of S-shaped, V-shaped, U-shaped, Z-shaped, and quadratic transfer functions to binarize the GCRA. Secondly, the threshold which maps a variable to 0 or 1 is used to develop a variant of GCRA. The performance of the six (6) variants were evaluated using 12 datasets with different dimensionalities. The experimental results show the stability of all the proposed methods as they generally performed competitively. However, the threshold version known as BGCRA showed better performance in yielding the highest accuracy of classification on 9 of the 12 datasets utilized in the study and performed second in selecting the least number of important feature sets. It also showed superiority over other variants in yielding the least average fitness values in 11 of 12 (91.6%) of the datasets used. Hence, the BGCRA was utilized for further comparative analysis against 5 other popular feature selection (FS) algorithms with outstanding performance in terms of producing the highest mean accuracy of classification on 91.6% (11 of 12) of the datasets, 100% least average fitness values, and 91.6% in selecting the least average number of significant features. The results were also validated by statistical tests which showed that the BGCRA is significantly superior compared to other methods.

Современный статус балобана в России и в Казахстане

Современный статус балобана в России и в Казахстане

Historical Developments in Food Science and Technology

Food science aims to create and maintain a safe, abundant, and wholesome food supply based on fundamental science and engineering principles. The evolution of food science over the centuries has resulted in the development of various food processing technologies to ensure nutritious, fresh, and safe food. Recent decades have seen much attention paid to applying emerging technologies. By developing new food processing technologies, the overall processing time and energy consumption have been reduced compared to conventional methods, while ensuring food safety and providing benefits to the industry. This review provides an overview of the development and invention of technology to the present. Keywords: Food science evolution, Emerging technologies, Food safety, Technological invention

Thresholds for the presence of glacial megafauna in central Europe during the last 60,000 years

Lake sediment records from Holzmaar and the infilled maar of Auel (Eifel, Germany) are used to reconstruct landscape changes and megafauna abundances. Our data document a forested landscape from 60,000 to 48,000 yr b2k and a stepwise vegetation change towards a glacial desert after 26,000 yr b2k. The Eifel landscape was continuously inhabited from 48,000 to 9000 yr b2k by large mammals, documented by the presence of spores of coprophilous fungi from Sordaria and Sporormiella fungi that grow on fecal remains of the megafauna. Megafauna reached higher numbers during cold stadial climates but was present also during the warmer interstadials. Highest abundance was at 56,500/48,500/38,500/33,000/27,000/21,000/16,200/14,000 yr b2k, i.e. under different climate regimes. Some of these dates were associated with clear human presence, which indicates that megafauna was not overkilled by humans. In contrast, human presence could quite likely have been stimulated by the abundant food supply. Megafauna presence decreased significantly when tree abundance increased during interstadials. The Megafauna disappeared finally at 11,400 yr b2k with the development of the early Holocene forest cover, which appears to be the most important threshold for megafauna presence.

The Innovative Informatics Approaches of High-Throughput Technologies in Livestock: Spearheading the Sustainability and Resiliency of Agrigenomics Research.

For more than a decade, next-generation sequencing (NGS) has been emerging as the mainstay of agrigenomics research. High-throughput technologies have made it feasible to facilitate research at the scale and cost required for using this data in livestock research. Scale frameworks of sequencing for agricultural and livestock improvement, management, and conservation are partly attributable to innovative informatics methodologies and advancements in sequencing practices. Genome-wide sequence-based investigations are often conducted worldwide, and several databases have been created to discover the connections between worldwide scientific accomplishments. Such studies are beginning to provide revolutionary insights into a new era of genomic prediction and selection capabilities of various domesticated livestock species. In this concise review, we provide selected examples of the current state of sequencing methods, many of which are already being used in animal genomic studies, and summarize the state of the positive attributes of genome-based research for cattle (Bos taurus), sheep (Ovis aries), pigs (Sus scrofa domesticus), horses (Equus caballus), chickens (Gallus gallus domesticus), and ducks (Anas platyrhyncos). This review also emphasizes the advantageous features of sequencing technologies in monitoring and detecting infectious zoonotic diseases. In the coming years, the continued advancement of sequencing technologies in livestock agrigenomics will significantly influence the sustained momentum toward regulatory approaches that encourage innovation to ensure continued access to a safe, abundant, and affordable food supplies for future generations.

Probing for depth‐gradient diversification in the riverine‐spawning Dolly Varden: Insights from a recently discovered ecomorph assemblage

AbstractThe interplay of species could affect the pathways of adaptive diversification in lacustrine fishes. For instance, sockeye salmon is highly effective in transporting biomass from the ocean to the lakes providing abundant food supply for resident dwellers. The largest Asian population of sockeye salmon (>1.5 million spawners annually) reproduces in Lake Kurile (Russia). Here we investigate the possibility of the rapid in‐lake diversification of the tributary‐spawning charr (genusSalvelinus, Salmonidae) that colonised the Lake Kurile habitats >100 m depth and gained access to decomposing sockeye carcasses and eggs. The results confirm the trifurcation of the Lake Kurile charr along with the depth gradient into three reproductively isolated morphs: anadromous Dolly Varden utilising littoral and tributary resources, the resident slope charr and the profundal charr. No feeding specialisation among the morphs was found as the lake is rich in sockeye remains irrespective of depth. Thus, the in‐depth specialisation of the charrs did not result in the archetypical tropho‐morphological adaptations described for the majority of the deep‐water species of fishes. Only the size reduction and some paedomorphic peculiarities characterise the charr permanently dwelling in the 100–300 m depth zone. The lack of morphological differences among the morphs could be explained by the short period of evolutionary diversification. The divergence event is estimated to have occurred after the close of the glacial period in the middle of Holocene, which corresponds to the time of the lake formation. A bottleneck and subsequent rapid expansion can be traced in the demographic history of the profundal morph, suggesting the possibility of modern sympatric diversification in fish without a trophic resource partitioning.

Food and Power: The Utopian City and Its Countryside

From More and Campanella to Gernsback's Ralph 124C 41+, utopian authors have imagined potential agricultural revolutions guaranteeing a secure and abundant supply of high-quality food. Since literary utopias are either based in or modeled on the institution of the city, their demand for food necessitates an increased exploitation of the countryside. Industrialized agriculture remains indispensable even in a future such as Gernsback's, where most foods are apparently synthetic. The "garden city" utopias from Cabet to Gilman equally rely on agricultural intensification, portraying an ideal of "perfect cultivation" that depends on systematic ecocide and environmental remodeling. Their utopian futures anticipate the historical development of global agriculture all too closely. Morris's News from Nowhere stands out for its opposition to industrial farming and to the subordination of the countryside to the rule of the city. Yet Morris's future London continues to import virtually all its food. Finally, consideration of Robinson's Pacific Edge suggests that the challenge of imagining a future for well-fed humanity no longer dependent on rural oppression and environmental destruction remains to be met.

Controls on organic matter accumulation in the Bakken Formation, Williston Basin, USA

The environmental processes and conditions controlling productivity and organic matter accumulation/preservation in the lower black shale (LBS) and upper black shale (UBS) members of the Devonian-Mississippian Bakken Formation were evaluated utilizing molybdenum (Mo), total organic carbon (TOC), total sulfur (ST), and iron (Fe) data. High-resolution (1- to 3-cm scale) chemostratigraphic records were generated for twelve drill cores, four of which closely flank the north-south-trending axis of the Nesson Anticline, proximal to the center of the Williston Basin in northwest North Dakota, USA. Degree of pyritization (DOPT) values (0.25 to 1.0) indicate that bottom waters were frequently dysoxic with intermittent aerobic and anoxic/euxinic conditions. However, the presence of organic sulfur in black shales can complicate the use of DOPT as a redox proxy requiring a multi-proxy approach to adequately elucidate depositional conditions. In such samples, the use of ST to approximate pyritic sulfur can lead to an overestimation of DOPT values. Total organic carbon contents of 2–20%, by weight, and consistently elevated Mo concentrations (>100 ppm) in both the LBS and UBS imply that the Williston Basin was often hydrographically unrestricted, allowing for ample nutrient resupply that resulted in enhanced primary productivity. Enhanced organic production (as indicated by the elevated TOC contents) was most likely supported by an abundant supply of nutrients in the basin. Using published Mo–TOC relationships from modern anoxic-euxinic basins, it is estimated that renewal time of the sub-chemoclinal water mass during accumulation of the LBS and UBS approximated 10 and 30 yr, respectively. Key differences between LBS and UBS redox proxies highlight different bottom-water redox conditions during deposition, suggesting differences in paleo-water mass geochemical characteristics and general circulation.

Foraging in the Anthropocene: Feeding plasticity of an opportunistic predator revealed by long term monitoring

For centuries, human activities have altered the population dynamics of wildlife. New anthropogenic food sources provide a predictable and abundant food supply that often induces very significant changes in the size, distribution, and behaviour of many populations, with ultimate consequences on the structure and functioning of natural ecosystems. Here, we combine historical and contemporary feather samples of a population of a superabundant, opportunistic predator, the yellow-legged gull Larus michahellis, to assess its trophic ecology and relate it to human activities in the long term. Dietary assessments were based on stable isotope analysis of carbon, nitrogen, and sulphur (δ13C, δ15N and δ34S), and were conducted through three end-point (marine prey, waste from landfills-slaughterhouses, and terrestrial invertebrates) Bayesian mixing models. Our results suggest that gulls’ diet showed a progressive decrease in the consumption of marine prey throughout the most recent period (late 20th century onwards), linked to an increase in the consumption of meat waste and small terrestrial invertebrates. Reported dietary changes over the sampling period correlated positively with the availability of marine resources around the breeding area. We provide evidence suggesting that the ability of gulls to exploit efficiently diverse anthropogenic food subsidies likely resulted in the exponential demographic increase of this population throughout the 20th century. In addition, current regulations affecting the availability of these food resources (e.g., fishing discards and landfill waste) likely reversed this trend over the last decade. Long-term evidence of population trophic plasticity, like the one we present here, is essential to implement and support management and conservation actions that limit the availability of anthropogenic resources, especially when it comes to superabundant, problematic species.

Open habitats promote female group formation in a solitary ungulate: the Japanese serow

Understanding the factors that drive the evolution of sociality is one of the central issues in behavioural ecology. In ungulates, open habitats, such as alpine meadows, are thought to have promoted the evolution of various gregarious societies from solitary territorial lifestyles. However, the transition from a solitary territorial lifestyle to a gregarious society and the ultimate factors underlying this change remain unclear. The Japanese serow is a primal solitary ungulate. Females in forest-dwelling populations have solitary territorial lifestyles, but the social relationships among females in open-land dwelling populations have not been explored. We evaluated the spatial organisation and social interactions among female Japanese serows in an area with alpine meadows and subalpine forests and examined the effects of alpine meadows on female social relationships through within-population comparisons. We confirmed the presence of both spatially solitary animals (little home range overlap with other individuals) and spatial groups (large home range overlap with two to three individuals), having exclusive territories. Females with more alpine meadows in their home range formed group territories, whereas those with more subalpine forests formed solitary territories. Accordingly, we show, for the first time, that open habitats promote the formation of female spatial groups in a primal solitary ungulate. We suggest that homogenous food distribution and abundant food supply in alpine meadows promote spatial group formation and that the mitigation of exclusive relationships and home range overlapping is a transitional phase for the development of gregarious societies. We found spatial group formations among females in a primal solitary ungulate, the Japanese serow, which were promoted by open habitats, such as alpine meadows. Our findings provide evidence for an evolutionary pattern in ungulates, whereby open habitat structures promote the evolution from solitary, territorial lifestyles, to gregarious societies. This indicates that the mitigation of exclusive relationships (i.e. territoriality) and the overlapping of home ranges among females is a transitional phase for the development of gregarious societies. Homogenous food distribution and an abundant food supply in the alpine meadows appear to promote the formation of spatial groups, suggesting that food abundance and distribution are among the important ultimate factors that potentially contribute to the evolution of gregarious societies.

Influence of HRT and carbon source on the enhancement of nutrient removal in an Anaerobic-Oxic-Anoxic (AOA) system

ABSTRACT The eutrophication and increase in toxicity promoted by the continuous or abundant supply of nutrients in water bodies threaten the safety of drinking water and human health. In this regard, this study proposes the investigation of wastewater treatment focusing on the simultaneous removal of nitrogen and phosphorus in the anaerobic–oxic–anoxic (AOA) system. The AOA system was operated in three different stages to verify the influence of the external carbon source addition in the anoxic reactor and the reduction of hydraulic retention time (HRT) in the anaerobic and oxic reactors for nutrient removal optimization. Results showed that the best performance of the AOA system on nutrient removal was obtained in Stage 3, with the reduction of the HRT in the anaerobic and oxic reactors (HRT = 4 h) while maintaining HRT of 6.4 h in the anoxic reactor with no addition of the external carbon source. Under these conditions, the average removal efficiencies reached 98% for Chemical Oxygen Demand (COD), 88% for Total Ammonia Nitrogen (TAN), 81% for Total Kjeldahl Nitrogen (TKN), and 70% for Total Phosphorus (TP). The results also demonstrate that the highest phosphorus removal efficiency was achieved in the anoxic reactor, thus indicating the occurrence of denitrifying phosphorous removal by Denitrifying Phosphate Accumulating Organisms (DNPAOs). This configuration was efficient regarding the simultaneous removal of nitrogen and phosphorus; besides, the advantages of this system include robust configuration and excellent performance on the nutrient removal.

Year Round Royal Jelly Production Determining the Best Season of Producing Royal Jelly

This research was conceptualized to determine the preeminent season for the production of royal jelly from the honeybee Apis mellifera. Three strong double-chambered colonies of equal strength were utilized throughout the duration of the study and the grafting method was applied to facilitate the production of the jelly by the bees. Royal jelly can be produced at any time of year provided that all the necessary requirements of the colonies are available. Research results revealed that the highest yield was obtained during the months of April and May, which coincides with the honey production season, wherein an abundant supply of food for the bees is available. Accordingly, production of royal jelly is best when there are sufficient quantity of pollen and nectar for the colonies and it is important therefore to note the honeyflow season in a particular area as basis for production.

Species biodiversity and distribution of seagrass beds in several coastal areas of central Vietnam

Seagrasses provide habitat and abundant food supplies for numerous marine species and seagrass ecosystems play a vital role in protecting the coast from erosion. There were numerous seagrass studies in Vietnam, however, while these studies provide information on specific studied places, there is a lack of comparison between studies for providing a broad picture of the overall seagrass ecosystem along the coast of Central Vietnam. Hence, this study of species diversity and distribution of seagrasses along the coast of Central Vietnam was conducted to provide comparative data, which is highly valuable for the proper exploitation, management, and sustainable development of seagrass resources in Central Vietnam. This study identified eight species of seagrass belonging to two families—Hydrocharitaceae and Cymodoceaceae—in the waters around several islands in Central Vietnam. Among them Halophila beccarii in the Cua Dai estuary was listed in the Red List of Threatened Species by the International Union for Conservation of Nature (IUCN) (2017)—at risk of global extinction. The results revealed that the seagrass beds in several coastal areas of Central Vietnam have diminished over time with respect to the number of species and their distribution with causes attributed to anthropogenic activities. The seagrass canopy coverage ranged from 5 to 100% (57 ± 36.20%) near several coastal islands of Central Vietnam. The majority of seagrass is distributed in both intertidal and subtidal zones Our findings suggest that water quality and important sedimentary processes vital to ecosystem health need to be assessed throughout the coastal region.