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Attribution analysis and forecast of salinity intrusion in the Modaomen estuary of the Pearl River Delta Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-14 Qingqing Tian, Hang Gao, Yu Tian, Qiongyao Wang, Lei Guo, Qihui Chai
Under the influence of climate change and human activities, the intensification of salinity intrusion in the Modaomen (MDM) estuary poses a significant threat to the water supply security of the Greater Bay Area of Guangdong, Hong Kong, and Macao. Based on the daily exceedance time data from six stations in the MDM waterway for the years 2016-2020, this study conducted Empirical Orthogonal Function
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Acropora tenuis energy acquisition along a natural turbidity gradient Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-14 Adi Zweifler, Nicola K. Browne, Oren Levy, Renae Hovey, Mick O’Leary
Predicted future increases in both local and global stressors are expected to lead to elevated turbidity levels and an expansion of the geographical range of turbid coral reefs. Corals typically respond to elevated turbidity by increasing their rates of heterotrophy as means of compensating for low energy levels from reduced light and photosynthesis. We analysed Acropora tenuis energy acquisition along
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Behavior analysis of juvenile steelhead trout under blue and red light color conditions based on multiple object tracking Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-14 Ziyu Li, Xueweijie Chen, Jinze Huang, Dong An, Yangen Zhou
IntroductionThe lighting environment significantly influences fish behavior. This study explores the impact of diverse lighting conditions on the behavior of steelhead trout (Oncorhynchus mykiss) to illuminate the mechanisms underlying their behavioral responses.MethodsThis experiment was set up with six treatments at a constant light intensity of 150 lx: 12h white light + 12h dark (12 W), 12h blue
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Remote sensing estimation of δ15NPN in the Zhanjiang Bay using Sentinel-3 OLCI data based on machine learning algorithm Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-14 Guo Yu, Yafeng Zhong, Dongyang Fu, Fajin Chen, Chunqing Chen
The particulate nitrogen (PN) isotopic composition (δ15NPN) plays an important role in quantifying the contribution rate of particulate organic matter sources and indicating water environmental pollution. Estimation of δ15NPN from satellite images can provide significant spatiotemporal continuous data for nitrogen cycling and ecological environment governance. Here, in order to fully understand spatiotemporal
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Vertical distributions of lipid biomarkers in spring and summer in coastal regions of the East China Sea Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-14 Jiawei Gao, Shulan Xu, Rong Bi, Yaoyao Wang, Yang Ding, Hong Che, Jing Zhang, Peng Yao, Jie Shi, Meixun Zhao
Lipid biomarkers are amongst the most widely used proxies in studies of the structure and functioning of marine food webs. However, vertical distributions of lipid biomarkers and their controlling mechanisms remain unclear, especially in highly dynamic coastal ecosystems. Here we tested vertical profiles of key lipid biomarkers (sterols and fatty acids) in suspended particles and their correlations
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Multifidelity topology design of a maritime survey operation with UUVs Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-14 Danielle F. Morey, Randall S. Plate, Cherry Y. Wakayama, Zelda B. Zabinsky
Advances in autonomous systems, maritime communications, and sensing technologies lead to increasing applications of unmanned underwater vehicles (UUVs). In this paper, we study a maritime survey operation topology design problem with UUVs that traverse an ocean environment and collect data from prespecified sensors or locations. This maritime scenario is analyzed via several models and simulation
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Seawater intrusion effects on nitrogen cycling in the regulated Nakdong River Estuary, South Korea Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-14 Yan Huang, Bongkeun Song, Qinglong Zhang, Yunjung Park, Stephanie J. Wilson, Craig R. Tobias, Soonmo An
Research on the impact of seawater intrusion on nitrogen (N) cycling in coastal estuarine ecosystems is crucial; however, there is still a lack of relevant research conducted under in-situ field conditions. The effects of elevated salinity on N cycling processes and microbiomes were examined in situ seawater intrusion experiments conducted from 2019 to 2021 in the Nakdong River Estuary (South Korea)
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Study on ice resistance of Antarctic krill ship with trawl under floating ice sea conditions Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-13 Zhixin Xiong, Xinyuan Wu, Yu Guo, Zheng Fu
IntroductionThis study focused on a Chinese Antarctic krill vessel utilising continuous pumping fishing technology. The resistance characteristics of Antarctic krill ships trawling in floating ice areas is of great significance for the navigation and fishing of krill ships in ice areas.MethodsFirstly, MATLAB programming using discrete elements combined with genetic algorithms was used to construct
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Top predator status and trends: ecological implications, monitoring and mitigation strategies to promote ecosystem-based management Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-13 Caterina Maria Fortuna, Tomaso Fortibuoni, Juan Bueno-Pardo, Marta Coll, Anita Franco, Joan Giménez, Yolanda Stranga, Myron A. Peck, Cristina Claver, Sophie Brasseur, Elena Fernández-Corredor, Simonetta Fraschetti, Odei Garcia-Garin, Anieke van Leeuwen, Maite Louzao, Arkaitz Pedrajas, Saša Raicevich, Francisco Ramírez, Janneke Ransijn, Debbie Russell, Fabrizio Serena, Valerio Sbragaglia, Stelios Katsanevakis
The conservation and management of marine ecosystems hinge on a comprehensive understanding of the status and trends of top predators. This review delves into the ecological significance of marine top predators, examining their roles in maintaining ecosystem stability and functioning through an integrated analysis of current scientific literature. We first assess the efficacy of various monitoring
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Identification of microRNAs in black tiger shrimp (Penaeus monodon) under acute low-salinity stress Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-13 Jianzhi Shi, Song Jiang, Qibin Yang, Yundong Li, Lishi Yang, Jianhua Huang, Shigui Jiang, Falin Zhou
Salinity is a common abiotic stress in the culture of penaeid shrimp. Through post-transcriptional regulation of gene transcripts, microRNAs (miRNAs) play an important role in the adaptation to a stressful environment. However, the involvement of miRNAs in the salinity stress response of shrimp remains unclear. In the present study, the sequence and expression profile of miRNAs in the hepatopancreas
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Effect of coastal hypoxia on bacterial diversity as elucidated through 16S rRNA amplicon sequencing Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-13 Vruti V. Naik, Samir R. Damare, Shruti S. Shah, Damodar M. Shenoy, Amara Begum Mulla
The formation of oxygen-depleted zones in the bottom waters is one of the most widespread phenomena in coastal areas. Upwelling episodes along India’s west coast due to the southwest monsoon increase biological productivity, further lowering the dissolved oxygen in the upwelled waters, which intensifies annually between June and October. Here, we have determined the changes in the microbial community
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Phytosterol supplementation enhances the growth performance, feed utilization, antioxidant status and glucose metabolism of juvenile largemouth bass (Micropterus salmoides) fed a high-starch diet Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-13 Qianrong Liang, Yuanfei Huang, Ningyu Zhu, Yijiang Bei, Wenrui Shi, Xiaoming Chen, Gaohua Yao, Qinghui Meng, Runzhen He, Xueyan Ding, Fan Zhou
IntroductionPrevious studies found that phytosterols could influence growth performance, feed utilization and lipid metabolism as well as improve the antioxidant capacity of animals.MethodsTo investigate the effects of dietary phytosterol supplementation on juvenile largemouth bass (Micropterus salmoides) fed a high-starch diet, a 56- day feedingtrial was conducted with four dietary feeds for juvenile
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A decade of change and stability for fin whale song in the North Atlantic Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-13 Regina A. Guazzo, Dorene L. Stevenson, Michael K. Edell, George J. Gagnon, Tyler A. Helble
Fin whale song is a ubiquitous low-frequency pulsing that has been recorded in every ocean basin. In recent years, the complexity of fin whale song has been realized. In the North Atlantic, this song is made up of two low-frequency note types (A and B notes) and one higher-frequency note type (upsweeps). The A and B notes are produced with both singlet and doublet inter-note intervals. These song patterns
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Solid-state fermentation converts rice bran into a high-protein feed ingredient for Penaeus monodon Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-10 Fredson H. Huervana, Rex Ferdinand M. Traifalgar, Cleresa S. Dionela
Fermented rice bran (FRB) was evaluated as an alternative protein source to soybean meal (SM) in practical diets for juvenile black tiger shrimp, Penaeus monodon. This feed ingredient was tested in a feeding trial to replace soybean meal in P. monodon diets at 0% (T0), 12.5% (T12.5), 25% (T25), 37.5% (T37.5), and 50% (T50). Five iso-nitrogenous and iso-caloric experimental diets containing 44% crude
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High photoreactivity of chromophoric dissolved organic matter derived from Ulva prolifera and Sargassum Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-10 Yong Zhang, Kaili Fang, Mengmeng Liu, Jihua Liu, Xiaobo Zhao, Weidong Zhai, Hongsheng Zhang, Xiaotong Wang, Huixiang Xie
The epipelagic macroalgae of Ulva prolifera and Sargassum are the primary contributors to widespread seaweed tides globally. Both ocean plants release large amounts of chromophoric dissolved organic matter (CDOM) into the surrounding seawater. The photochemical reactivity of this CDOM, however, has not been adequately addressed. In this study, we extracted CDOM from Ulva prolifera and Sargassum, examined
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Discovery of new eremophilanes from the marine-derived fungus Emericellopsis maritima BC17 by culture conditions changes: evaluation of cytotoxic and antimicrobial activities Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-10 Jorge R. Virués-Segovia, Cristina Pinedo, David Zorrilla, Jesús Sánchez-Márquez, Pilar Sánchez, María C. Ramos, Mercedes de la Cruz, Josefina Aleu, Rosa Durán-Patrón
In our previous studies, the marine-derived fungus Emericellopsis maritima BC17 was found to produce new eremophilane-type sesquiterpenoids on solid media. In order to explore its potential to produce more metabolites, E. maritima BC17 was subjected to a one strain-many compounds (OSMAC) analysis leading to the discovery of three new eremophilanes (1-3) and fourteen known derivatives (4-17) in the
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Effects of salinity on the growth, physiological and biochemical components of microalga Euchlorocystis marina Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-10 Yao Pan, David Kwame Amenorfenyo, Mingbiao Dong, Ning Zhang, Xianghu Huang, Changling Li, Feng Li
Euchlorocystis marina, a new marine species of the genus Euchlorocystis discovered in 2022, has the potential to improve the water quality in mariculture ponds. However, the effects of salinity on the growth, physiology, and biochemical composition of these algae are not well understood. In this study, changes in physiological and biochemical indices such as cell density, photosynthetic pigment, polysaccharide
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Optimum eicosapentaenoic acid + docosahexaenoic acid levels for farmed Atlantic salmon: closing the gap between science and commercial practice Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-10 Ian Carr, Ester Santigosa, Tony Chen, John Costantino
The shift from fish oil to vegetable oil (VO) sources has lowered eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) levels in salmon aquafeeds. VOs are high in omega-6 and low in omega-3 essential fatty acids like EPA and DHA, crucial for fish metabolism and immunity. Algal oil (AO), with high EPA + DHA and lower omega-6 levels supports fish health and growth, but transferring lab-controlled
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Impact of typhoons on the ecological environment of the Pearl River Estuary in the summer of 2021—a study of an algal bloom event Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-10 Xin Zhang, Shan Gao, Xuanliang Ji, Xueming Zhu, Jingjing Zheng, Shaojing Guo
In the summer of 2021, two typhoons, Typhoon Cempaka and Typhoon Lupit, passed through the Pearl River Estuary (PRE), resulting in a noticeable chlorophyll-a (Chla) bloom event on the west side of the PRE. Utilizing a coupled hydrodynamic-ecological model (ROMS-CoSiNE), we investigated the changes in the marine environment during the two-typhoon period and explored the underlying mechanisms involved
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The effects of turbulence on the growth of three different diatom species Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-10 Yijing Liu, Lin Yu, Zhongzhi Yao, Yunwen Shen, Yiwen Pan
The effects of turbulence on phytoplankton growth have received considerable attentions. However, the complexity of turbulence poses a significant challenge to its systematic characterization in the laboratory, resulting in relatively limited data on the effects of turbulence on several algal species. Here, a laboratory turbulence simulation system was set up to systematically investigate the growth
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Impacts of locally managed periodic octopus fishery closures in Comoros and Madagascar: short-term benefits amidst long-term decline Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-10 Mary K. McCabe, Laura Mudge, Tahiry Randrianjafimanana, Nestin Rasolofoarivony, Fanny Vessaz, Robertin Rakotonirainy, Faissoil Ahmed Said, François Rakotoarisoa, Tsiorisoa Ratoniherison, Steve Box, Courtney Cox
Octopus fisheries face heightened demand driven by depleted fish stocks and escalating economic value, leading to overextraction of octopus populations and magnifying threats to coastal ecosystems and the livelihoods of fishers who depend on them. Implementation of management strategies such as periodic fishing closures can offer sanctuary for octopus, providing the necessary space and time for the
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Spatial distribution and environmental/biological co-regulation mechanism of dimethyl sulfur compounds in the eastern Indian Ocean Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-08 Liying Peng, Chenjuan Fan, Yu Guo, Changling Ding, Xingzhou Wang, Guicheng Zhang, Jun Sun
Dimethyl sulfur compounds including dimethylsulfoniopropionate (DMSP), dimethyl sulfide (DMS), and dimethyl sulfoxide (DMSO), play a crucial part in global sulfur cycling. The eastern Indian Ocean (EIO), characterized by its remarkable diversity of biomes and climate dynamics, is integral to global climate regulation. However, the regulation mechanism of DMS (P, O) in the EIO remains to be elucidated
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Industrial mining trial for polymetallic nodules in the Clarion-Clipperton Zone indicates complex and variable disturbances of meiofaunal communities Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-08 Nene Lefaible, Lara Macheriotou, Ellen Pape, Massimiliano Molari, Matthias Haeckel, Daniela Zeppilli, Ann Vanreusel
Following several small-scale benthic disturbance experiments, an industrial polymetallic nodule collector trial was conducted by the company Global Sea mineral Resources (GSR) in their exploration contract area in the Clarion-Clipperton Zone using the pre-prototype vehicle Patania II (PATII). In this study, meiofaunal (i.e., nematode abundance, ASV diversity and genus composition) and environmental
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Comparison of linear and nonlinear modeling approaches to develop an abundance index based on voyage and market data for a data-limited fishery Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-08 Tzu-Lun Yuan, Haikun Xu, Bing-Jing Lu, Shui-Kai Chang
IntroductionWorldwide coastal fish resources face severe threats from fisheries overexploitation. However, the evaluation of abundance trends in most coastal fisheries is constrained by limited data. This study took blackmouth croaker (Atrobucca nibe), a stock depleted by coastal trawl fishery in southwestern Taiwan, as an example to showcase the development of a relative abundance index from data-limited
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Nutrient comparisons among the noble scallops Chlamys nobilis with three different shell colours to provide advices for consumers to choose high-quality food Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-08 Cheng He, Ting Ye, Junxi Zeng, Hongkuan Zhang, Yizhou Sun, Chuanxu Zhang, Xianqing He, Jiale Qiu, Huaiping Zheng
IntroductionIn aquatic animals, colors not only reflect their sensory qualities but also affect their nutritional components and market price. Noble scallop Chlamys nobilis is an importantly economical bivalve cultured in the south sea of China and renowned for its various shell colors.MethodsIn this study, the nutrient compositions were compared among golden, yellow, and brown shell colour noble scallops
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The landlocked ocean: landlocked states in BBNJ negotiations and the impact of fixed land-sea relations in global ocean governance Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-08 Solomon Sebuliba
This article examines the multifaceted dimensions of landlockedness within the realm of international discourse, with a particular focus on its implications for managing global commons. Drawing from socio-legal literature and auto-ethnographic experiences during the recent intergovernmental negotiations for the BBNJ agreement under the 1982 Law of the Sea (UNCLOS) as a case study, the paper prompts
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The shape of fringing tidal flats in engineered estuaries Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-08 Jill L. J. Hanssen, Bram C. van Prooijen, Dirk S. van Maren
For the management of estuaries and the preservation of tidal flats it is crucial to understand the tidal flat shape and development. Previous work focused predominantly on the quasi-equilibrium shape of tidal flats along open coasts with a dominant cross-shore flow and wave exposure. This paper evaluates the shape of fringing tidal flats in engineered estuaries, where longshore velocities generally
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Typhoon and flooding occurrences on Chongming Island, Changjiang Estuary, as revealed by a newly acquired sedimentary record Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-08 Peipei Zhao, Yang Yang, Jianjun Jia, Ning Zhao, Wentong Zhang, Shu Gao
Typhoon-induced storms surges and river flooding events represent two types of natural disasters that affect a wide range, occurring with high frequency and causing serious societal losses. Due to the limited duration of instrumental records, there is an inadequate understanding of the patterns and mechanisms underlying the variations in typhoons and floods. The interpretation of sedimentary records
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Above and below-ground bacterial communities shift in seagrass beds with warmer temperatures Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-08 Luke DA. Walker, Paul E. Gribben, Tim M. Glasby, Ezequiel M. Marzinelli, Deepa R. Varkey, Katherine A. Dafforn
Current rates of ocean warming are predicted to exacerbate ongoing declines in seagrass populations. Above-ground responses of seagrass to increasing temperatures have been studied from a direct physiological perspective while indirect effects, including changes to microbially-mediated below-ground processes, remain poorly understood. To test potential effects of increased temperature on seagrass growth
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Asymmetry response of storm surges along the eastern coast of the Taiwan Strait Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-08 Ruijie Zhang, Junqiang Shen, Li Li, Yuting Wang, Jiang Huang, Mingzhang Zeng, Xiaogang Guo
Spatiotemporal variation of storm surges in the Taiwan Strait (TWS) is studied using water level datasets from 14 tidal gauge stations located in the TWS from summer to fall of 2016. The effects of bathymetry on storm surges and tropical cyclone (TC)-induced continental shelf wave (CSW) are explored. By comparing water level response along the east coast of TWS, it is found that storm surges are asymmetric
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Lower thermal tolerance restricts vertical distributions for juvenile albacore tuna (Thunnus alalunga) in the northern limit of their habitats Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-07 Naoto Matsubara, Yoshinori Aoki, Akiko Aoki, Hidetada Kiyofuji
IntroductionEvaluating the thermal tolerance of commercially valuable tuna species and their behavioral responses to the limits of this tolerance is essential for evaluating the effects of changes in water temperature driven by global climate change on their distribution and fisheries. We aimed to identify the lower thermal tolerance (Tmin) of juvenile albacore tuna (ALB) and evaluate their behavioral
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A roadmap to reduce the risk of overexploiting EU marine living resources in a changing ocean Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-07 François Bastardie, Lara Salvany, Anne M. Cooper, Natacha Carvalho
We provide a balanced overview of how risk assessment and management is being tackled in the European Union (EU) and beyond to address the challenges of overexploiting marine living resources in EU waters. We aim to guide EU fisheries and aquaculture policymakers towards key actions to foster the transition to responsible, sustainable, clean energy, and resilient fisheries and aquaculture sectors,
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Identification of orange color-related gene, PhcpcC, in Pyropia haitanensis Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-07 Yanling Guo, Jing Chang, Yan Xu, Yanqing Liao, Dehua Ji, Changsheng Chen, Wenlei Wang, Chaotian Xie
Pigmentation-related mutations can be utilized to distinguish between differentially colored sectors of chimeric thalli, thereby facilitating the efficient breeding of economically valuable Pyropia/Porphyra seaweed species. However, the specific trait loci and alleles responsible for Pyropia/Porphyra coloration have yet to be identified, which limits the applicability of coloration mutants for breeding
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Real-time quality assurance and quality control for a high frequency radar network Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-06 Hugh Roarty, Teresa Updyke, Laura Nazzaro, Michael Smith, Scott Glenn, Oscar Schofield
This paper recommends end to end quality assurance methods and quality control tests for High Frequency Radar Networks. We focus on the network that is operated by the Mid Atlantic Regional Association Coastal Ocean Observing System (MARACOOS). The network currently consists of 38 radars making real-time measurements of the surface currents over the continental shelf for a variety of applications including
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Deriving erosion thresholds of freshly deposited cohesive sediments from the port of Hamburg using a closed microcosm system Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-06 M. Witt, J. Patzke, E. Nehlsen, P. Fröhle
The quantification of the erodibility of cohesive sediments is fundamental for an advanced understanding of estuarine sediment transport processes. In this study, the surface erosion threshold τc for cohesive sediments collected from two sites in the area of the Port of Hamburg in the River Elbe is investigated in laboratory experiments. An improved closed microcosm system (C-GEMS) is used for the
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A framework for studying the effects of offshore wind energy development on birds and bats in the Eastern United States Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-03 Kathryn A. Williams, Julia Gulka, Aonghais S. C. P. Cook, Robert H. Diehl, Andrew Farnsworth, Holly Goyert, Cris Hein, Pamela Loring, David Mizrahi, Ib Krag Petersen, Trevor Peterson, Kate McClellan Press, Iain J. Stenhouse
Offshore wind energy development (OWED), while a key strategy for reducing carbon emissions, has potential negative effects to wildlife that should be examined to inform decision making and adaptive management as the industry expands. We present a conceptual framework to guide the long-term study of potential effects to birds and bats from OWED. This framework includes a focus on exposure and vulnerability
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Escarpments within Mediterranean seagrass Posidonia oceanica meadows increase habitat heterogeneity and structural complexity enhancing fish diversity and biomass Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-03 Enric Gomis, Enric Ballesteros, Irene Bernabeu, Karina Inostroza, Miguel A. Mateo, Oscar Serrano
Seagrass meadows provide important ecosystem services including carbon sequestration, coastal protection from erosion, and sustained biodiversity and fisheries thereby improving the wellbeing and livelihoods of coastal communities. The erosion of millenary deposits of intertwined roots and rhizomes of Posidonia results in the formation of three-dimensional structures named escarpments that constitute
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Community science informs movement and reproductive ecology of sand tigers Carcharias taurus off North Carolina, United States of America Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-03 Carol Seals Price, Ara Lupton McClanahan, Erin J. Burge, Tanya Houppermans, Jason Holmberg
Sand tigers are frequently observed at shipwrecks and other artificial reef habitats off North Carolina (USA), but data about occupancy, movement ecology, and site fidelity are lacking. Spot A Shark USA researchers used Wildbook© photoidentification software to spot map sand tigers in images provided by recreational SCUBA divers, or collected from remotely operated vehicles, and an offshore live-streaming
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Observations of wave run-up affected by dune scarp during storm conditions: a two dimensional large-scaled movable bed experiment Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-03 Eunju Lee, Hai Van Dang, Sungwon Shin, Jeseon Yoo, Hyoungsu Park
Artificial dunes serve as essential nature-based defenses against the increasing threats posed by climate change and rising sea levels along coastal regions. However, these man-made dunes are particularly susceptible to erosion during severe storm events, necessitating careful consideration of their design for effective coastal protection. Among the myriad factors influencing artificial dune design
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Correlation between acoustic velocity and physical parameters of sea floor sediments: a case study of the northern South China Sea Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-03 Hongmao Zhang, Lei Xing, Qingjie Zhou, Qianqian Li, Jiayi Han, Kai Liu
As the interface between seawater and the seabed, superficial sediments on the seabed are an important part of the marine acoustic field environment and are indispensable for marine resource investigations. Studying sediments several meters to hundreds of meters below the seafloor is highly valuable and important. This study processes and analyses the water depth, topography and bottom data and obtains
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Satellite tagging insights into the seasonal movements and behavior of Mediterranean spearfish (Tetrapturus belone, Istiophoridae) Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-03 Danilo Malara, Pietro Battaglia, Martin C. Arostegui, Jonathan J. Dale, Barbara A. Block, Camrin D. Braun, Massimo Brogna, Silvestro Greco, Teresa Romeo
The Mediterranean spearfish (Tetrapturus belone) is a highly migratory predator, also exploited by commercial and recreational fisheries although its catches are poorly reported. The fishing pressure on this species is currently unknown because catch and landing data are fragmentary. Furthermore, more ecological information (e.g. migratory movements) is needed to establish eventual management measures
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Deciphering decadal observation of Fukushima-derived radiocesium in the most polluted port near the Fukushima Daiichi Nuclear Power Plant: from seawater to marine fish Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-03 Wuhui Lin, Yibang Zhang, Jinqiu Du, Jiliang Xuan, Fei Tuo
The biological concentration effect of radionuclides in marine fish has exacerbated public anxiety about seafood security in the context of Fukushima nuclear-contaminated water discharged into the ocean. However, the most polluted port near the Fukushima Daiichi Nuclear Power Plant (FDNPP) has seldom been investigated, especially for radioactivity in marine fish. In this study, decadal observations
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Resuspended freeze-dried Nannochloropsis as a model laboratory system for concentrated fresh Nannochloropsis in ultrasound cell disruption experiments Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-03 Esther Mienis, Dries Vandamme, Imogen Foubert
Microalgae have rigid, complex cell walls hindering direct lipid extraction. Cell disruption techniques are used to rupture these cellular structures to increase lipid extraction. Researchers investigating the downstream processing of microalgae do not always have access to microalgal cultivation systems to generate large amounts of fresh microalgal biomass. Using resuspended freeze-dried microalgal
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Effectiveness of a novel compound microbial agent for water quality and the gut microbiota of Micropterus salmoides Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-03 Qian Li, Li-Hui Sun, Bi-Cheng Yang, Jian-Hu Jiang, Jian-Ming Chen, Gang Zheng, Ling-Mei Gao, Jun Peng, Jian-Lin Guo
The cultivation of largemouth bass (Micropterus salmoides), a species of significant economic value in aquaculture, has experienced notable growth recently. However, the deterioration of water quality seriously affects the metabolic responses of M. salmoides. While compound microbial agent (CMA) is widely utilized for ecological rehabilitation and water filtration, its application in M. salmoides has
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Isotopic niches reveal the trophic structure of the cetacean community in the oceanic waters around the Azores Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-03 Myriam Lebon, Ana Colaço, Rui Prieto, Irma Cascão, Cláudia Oliveira, Marta Tobeña, Yann Planque, Jérôme Spitz, Mónica A. Silva
IntroductionThe oceanic waters around the Azores host a high diversity of cetaceans, with 28 species of toothed and baleen whales present year-round or seasonally. This high cetacean biodiversity likely plays an important role in the structure, functioning and productivity of the ecosystem, and may increase trophic redundancy, thus contributing to food web resilience to disturbances.MethodsHere we
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Assessing the potential impact of assimilating total surface current velocities in the Met Office’s global ocean forecasting system Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-02 Jennifer Waters, Matthew J. Martin, Michael J. Bell, Robert R. King, Lucile Gaultier, Clément Ubelmann, Craig Donlon, Simon Van Gennip
Accurate prediction of ocean surface currents is important for marine safety, ship routing, tracking of pollutants and in coupled forecasting. Presently, velocity observations are not routinely assimilated in global ocean forecasting systems, largely due to the sparsity of the observation network. Several satellite missions are now being proposed with the capability to measure Total Surface Current
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Analysis of sea level variability and its contributions in the Bohai, Yellow Sea, and East China Sea Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-02 Yanxiao Li, Jianlong Feng, Xinming Yang, Shuwei Zhang, Guofang Chao, Liang Zhao, Hongli Fu
Understanding the sea level variability of the Bohai, Yellow Sea, and East China Sea (BYECS) is crucial for the socio-cultural and natural ecosystems of the coastal regions. In this study, based on satellite altimetry data, selected time range from 1993 to 2020, using the cyclostationary empirical orthogonal function (CSEOF) analysis method distinguishes the primary sea level variability modes. The
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Study on the relationship between informatization and marine eco-efficiency in China–taking 11 coastal provinces as examples Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-02 Baodong Dai, Jifeng Cao, Gonghang Chen, Cheng Ma
This article focuses on 11 coastal provinces in China and selects relevant data from 2008 to 2021. The improved entropy method is used to calculate the level of informationization development in each province. The Malmquist index is used to calculate the marine ecological efficiency of each province. The panel vector autoregression (PVAR) model is established to study the dynamic relationship between
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Integrated drag coefficient formula for estimating the wave attenuation capacity of Rhizophora sp. mangrove forests Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-02 Fernando Lopez-Arias, Maria Maza, Felipe Calleja, Georges Govaere, Javier L. Lara
Recently, bulk drag coefficient (C˜D) formulations used to quantify wave energy dissipation by Rhizophora mangroves were developed from laboratory data; however, these formulations have not yet been validated with field data. Additionally, due to the complex geometry of mangrove trees within forests and spatial variability, common criteria for determining the adequate geometric characteristics of mangrove
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Revision of China’s marine environmental protection law: history, background and improvement Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-01 Ruiqiang Liu
The law on marine environmental protection is a branch of the law on environmental protection and is the basis for the conduct of marine environmental protection. Since its promulgation in 1982, China’s Marine Environmental Protection Law has undergone two revisions and three amendments, forming a legal system based on the Constitution, with the Environmental Protection Law as the overarching principle
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A multidisciplinary approach to describe population structure of Solea solea in the Mediterranean Sea Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-01 Rachele Corti, Elisabetta Piazza, Enrico Nicola Armelloni, Alice Ferrari, Audrey J. Geffen, Gregory E. Maes, Francesco Masnadi, Castrense Savojardo, Giuseppe Scarcella, Marco Stagioni, Fausto Tinti, Alex Zemella, Alessia Cariani
Investigating marine species population structure in a multidisciplinary framework can reveal signatures of potential local adaptation and the consequences for management and conservation. In this study we delineate the population structure of common sole (Solea solea) in the Mediterranean Sea using genomic and otolith data, based on single nucleotide polymorphism (SNPs) markers, otolith shape and
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Impact of heavy metals on aquatic life and human health: a case study of River Ravi Pakistan Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-01 Muhammad Irfan Ahamad, Zijie Yao, Liang Ren, Cheng Zhang, Tingting Li, Heli Lu, Muhammad Sajid Mehmood, Adnanul Rehman, Muhammad Adil, Siqi Lu, Wanfu Feng
Heavy-metal contamination in river and ocean is a critical environmental issue that endangers marine ecosystems and human health. Therefore, conducting extensive research to devise effective mitigation measures is imperative. Sediment samples were taken randomly throughout the study area. Analysis was done to determine the presence of different metals, including arsenic, cadmium, chromium, nickel,
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Tropical cyclone wave data assimilation impact on air-ocean-wave coupled Hurricane Harvey (2017) forecast Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-01 Sue Chen, James A. Cummings, Jayaram Veeramony, Justin S. Tsu
The impact of surface wave assimilation on hurricane track and intensity forecasts has been investigated using a fully coupled air-ocean-wave tropical cyclone data assimilation and forecast modeling system. A new 3DVAR wave assimilation method in the Navy Coupled Ocean Data Assimilation system (NCODA) maps the 1D wave energy spectra from buoys to 2D directional wave energy spectra using the maximum
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Characteristics and generation mechanisms of anticyclonic eddies, cyclonic eddies and dipole eddies in the Mozambique Channel Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-01 Ting Huang, Feng Zhou, Xiao Ma, Dingyong Zeng, Yong Tang, Yunlong Ma, Andre Emidio Raul, Ruibin Ding, Jorge Mario Mafuca, Ruijie Ye, Daji Huang
The discovery of cyclonic and dipole eddies in the Mozambique Channel (MC) indicates that the understanding of the mesoscale eddy characteristics in the MC is incomplete. The distributions of anticyclonic, cyclonic, and dipole eddies along the MC were elucidated in this study using satellite observations. It was observed that these eddies exhibit a preference for emergence and movement in the western
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Seabird-vectored pelagic nutrients integrated into temperate intertidal rocky shores Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-01 Samuel Healing, Cassandra E. Benkwitt, Ruth E. Dunn, Nicholas A. J. Graham
Seabirds provide inter-habitat connectivity by transporting vast quantities of nutrients from their pelagic feeding grounds to terrestrial and marine ecosystems via their nitrogen and phosphorous rich guano. However, it remains unclear whether seabird nutrients are cycling through many nearshore, temperate systems, such as United Kingdom (UK) rocky shores. Furthermore, it also remains unknown how seabird
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Ecomorphological adaptation of Scorpaena porcus (Linnaeus, 1758): evidence from two different environments revealed by sagittae features and somatic growth rates Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-01 Claudio D’Iglio, Sergio Famulari, Josipa Ferri, Marco Albano, Nunziacarla Spanò, Gioele Capillo, Serena Savoca
Improve the knowledge base on the ecomorphological adaptation of teleost species to different environments, trying to reconstruct how habitat can shape sagittae, is essential for conservational purposes, evolutionary evaluations, and population dynamics studies. Here is provided a comparative study between sagittae features, growth rates and age composition of two Scorpaena porcus populations inhabiting
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Asexual proliferative seedling technology for Sargassum fusiforme constructed using tissue culture method Front. Marine Sci. (IF 3.7) Pub Date : 2024-05-01 Lina Guo, Guanfeng Pang, Lin Luo, Congquan Gao, Binbin Chen, Zengling Ma
The traditional method of sexual reproduction in Sargassum fusiforme can lead to difficulties in maintaining the stable inheritance of superior traits. However, technology for asexual proliferation of seedlings in seaweed tissue culture is not well-developed. Therefore, we established a tissue culture method to study, the effects of different parts of S. fusiforme, uniconazole (UIZ) concentrations
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Effects of dietary astaxanthin on growth performance, immunity, and tissue composition in largemouth bass, Micropterus salmoides Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-30 Jiankun Zhang, Yeshun Yang, Hanying Xu, Xinyu Li, Fen Dong, Qiang Chen, Tao Han, Jiteng Wang, Chenglong Wu
This study examined the effects of feeding largemouth bass (Micropterus salmoides) with diets containing different doses of astaxanthin (0, 50, 100, 150, and 200 mg/kg) for 8 weeks. The results showed that the values of weight gain significantly increased from 620.32 ± 50.38% to 826.14 ± 33.49% as dietary astaxanthin levels increased from 0 mg/kg to 100 mg/kg. When the astaxanthin level exceeded 150mg/kg
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Sponge abundance and diversity patterns in the shallow and mesophotic reefs of the northern Red Sea Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-30 Lilach Raijman-Nagar, Liron Goren, Sigal Shefer, Micha Ilan
Accumulating data on the increasing degradation of coral reefs worldwide has led to a focus on the unique mesophotic coral ecosystem (MCE) as a potential refuge for threatened shallow-water species (i.e., the deep reef refugia hypothesis: DRRH). Sponges play a crucial role in coral-reef functioning but are often overlooked in benthic surveys. This knowledge gap is especially true for the Red Sea, where
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A new insight into the pigmentation of the three-spined stickleback exposed to oxidative stress: day and night study Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-30 Ewa Sokołowska, Ewa Kulczykowska
The diverse and changing pigmentation of the skin allows fish to adapt to environmental conditions for survival and communication with conspecifics. However, various physical and chemical environmental factors, including pollutants, affect fish coloration. Therefore, the implementation of an analysis of skin pigmentation has been considered in fish well-being and ecotoxicological studies. A physiological