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An empirical DNA-based identification of morphologically similar snappers (Lutjanus campechanus, Lutjanus purpureus) using a versatile bioinformatics workflow for the discovery and analysis of informative single-nucleotide polymorphisms Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-23 Robert A. Literman, Mayara P. V. Matos, Sara M. Handy, Jonathan R. Deeds
The commercially important species Lutjanus campechanus (Northern/Gulf red snapper) and Lutjanus purpureus (Southern/Caribbean red snapper) are the protagonists of a decade’s long taxonomic debate over their species delimitation, due in part to partial habitat overlap, extensive morphological similarity, and the lack of resolution when applying canonically reliable DNA barcoding approaches. In this
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Surfaces of coastal biogenic structures: exploiting advanced digital design and fabrication strategies for the manufacturing of oyster reef and mussel bed surrogates Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-23 Jan Hitzegrad, Leon Brohmann, Friedrich Herding, Kai Pfennings, Sven Jonischkies, Elisa Scharnbeck, Jeldrik Mainka, Inka Mai, Christian Windt, Harald Kloft, Achim Wehrmann, Dirk Lowke, Nils Goseberg
Coastal biogenic structures, formed by ecosystem engineering species, often feature rough surfaces characterized by intricate topographies and highly three-dimensional reliefs. Their surfaces are shaped by waves and tidal currents and reciprocally influence the ambient hydrodynamics, reflecting an equilibrium. Despite their significance, the impact of these surfaces on the ambient hydrodynamics remains
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Where the wild things aren’t: exploring the utility of rapid, small-scale translocations to improve site selection for shellfish restoration Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-23 Al Alder, Jenny R. Hillman
The assessment of site suitability is a crucial step for informing future successful species reintroductions. It ensures that translocated species have the highest chance of survival in their new environment while minimising ecological risks. However, it can be challenging when risk factors are unknown, especially when working with sessile species that cannot easily relocate to more favourable conditions
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Antiviral protection in the Pacific oyster Crassostrea (Magallana) gigas against OsHV-1 infection using UV-inactivated virus Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-23 Benjamin Morga, Mickäel Mège, Nicole Faury, Lionel Dégremont, Bruno Petton, Jean-François Pépin, Tristan Renault, Caroline Montagnani
The increase of the frequency and severity of marine diseases affecting farmed marine mollusks are currently threatening the sustainability of this aquaculture sector, with few available prophylactic or therapeutic solutions. Recent advances have shown that the innate immune system of invertebrates can develop memory mechanisms allowing for efficient protection against pathogens. These properties have
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Evaluation of the cytotoxic and antimicrobial potential of epiphytic biomass obtained from Laminaria hyperborea biorefinery side-streams Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-22 Angeliki Barouti, Lars Herfindal, Siva Krishna Vagolu, Håvard Homberset, Tone Tønjum, Georg Kopplin, Monica Jordheim
Harvested Laminaria hyperborea contributes to approximately 3.3 million tonnes of epiphytes discarded as waste despite containing organisms such as red algae and bryozoa, known to produce a range of high-value and bioactive compounds. Our research aim is to valorize epiphyte biomass by exploring the cytotoxic and antimicrobial potential in various extracts and optimized fractionation by flash chromatography
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Protection pattern and driving mechanism of typical marine ecosystems: a case study of China-ASEAN countries Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-22 Fenggui Chen, Zhiyi Cui, Jianwei Wu, Yuhuan Jiang, Feng Cai
The protection pattern of typical marine ecosystems is an overall summary of the regional marine ecosystem protection, indicating the protection status of typical marine ecosystems. The coastal waters of China and ASEAN countries have a highly diverse range of ecosystem types, including mangroves, coral reefs, and seagrass beds. The need to protect these ecosystems is urgent, but establishing marine
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Shell shape polymorphism analysis of the Manila clam Ruditapes philippinarum across different geographical populations in China Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-22 Zhongming Huo, Zixuan Wang, Dongdong Li, Kuo Liu, Xiaotong Li, Lei Fang, Xiwu Yan
Morphology of bivalves, a kind of quantitative character, is closely connected with the ecological and physiological behaviors of bivalves, including growth, survival, metabolism and reproduction. In this study, a multivariate statistical method was used to analyze seven indices for shell shape evaluation of Ruditaps philippinarum (R. philippinarum). Polymorphism of R. philippinarum shell shape across
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Measuring canopy morphology of saltmarsh plant patches using UAV-based LiDAR data Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-22 Qiuxin Hong, Zhenpeng Ge, Xinkai Wang, Yan Li, Xiaoming Xia, Yining Chen
Plant patches play a crucial role in understanding the biogeomorphology of saltmarshes. Although two-dimensional optical remote sensing has long been applied to the study of saltmarsh plant patches, studies focusing on the canopy features at a patch-scale remain limited. Therefore, a simple and efficient method is needed to capture three-dimensional patch features and their relationship to habitat
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A new method for quantifying redistribution of seabirds within operational offshore wind farms finds no evidence of within-wind farm displacement Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-22 Mark Trinder, Susan H. O’Brien, Joseph Deimel
The climate crisis is driving a rapid increase in size and number of offshore wind farms to reduce carbon emissions from electricity generation. However, there are concerns about the potential impact of offshore wind farms on the marine environment. Seabirds are considered to be at risk of being displaced from preferred foraging habitat, by construction and operation of offshore wind farms, resulting
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Reflections on the European Union’s participation in negotiations of the global plastic pollution instrument under international environmental law Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-22 Qi Xu, Mingyang Zhang, Shuli Han
Increasing plastic pollution is looming worldwide, damaging biodiversity, marine ecosystems, and human health. At the global level, no overarching normative framework sets out the specific rules and principles of general application in international environmental law, leading to difficulties in compliance and enforcement of plastic pollution governance. Developing an effective and legally binding instrument
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Patterns of summer ichthyoplankton distribution, including invasive species, in the Bering and Chukchi Seas Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-22 Sung Hoon Kim, Wuju Son, Jaeill Yoo, Kyoung-Ho Cho, Taewook Park, Eun Jin Yang, Sung-Ho Kang, Hyoung Sul La
A multidisciplinary survey was carried out in the Pacific Arctic and sub-Arctic regions of the North Pacific Ocean on the Korean icebreaking research vessel Araon. During this survey, ichthyoplankton fishes in the Pacific Arctic and sub-Arctic region ranged from the Bering Sea to the northern Chukchi Shelf in summer. The most dominant species was Gadus chalcogrammus, followed by Pleuronectes quadrituberculatus
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Strongly asymmetric interactions and control regimes in the Barents Sea: a topological food web analysis Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-22 Ferenc Jordán, Greta Capelli, Raul Primicerio, Antonio Bodini
IntroductionIncreasing temperature of the global ocean alters the spatial behavior of a number of species. From the northern Atlantic Ocean, species may shift their area towards the poles. This results in the atlantification of the Barents Sea, raising questions about possible changes in species composition, community structure and community control.MethodsWe address the question whether possible changes
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Integrated analysis of the physiological, transcriptomic and metabolomic responses of Neoporphyra haitanensis after exposure to UV-B radiation: an energy metabolism perspective Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-19 Xinyue Wang, Yu Zang, Song Xue, Shuai Shang, Jiayi Xin, Liuqing Tang, Jun Chen, Xuexi Tang
The increase in UV-B radiation at the Earth’s surface due to the depletion of the stratospheric ozone layer is a notable facet of contemporary climate change patterns. The macroalgae inhabiting the intertidal zone exhibit a diverse array of adaptive strategies to cope with dramatic environmental changes. In this study, we integrated physiological, transcriptomic and metabolomic data from energy metabolism
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The influence of micro-scale thermal habitat on the movements of juvenile white sharks in their Southern California aggregation sites Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-19 Emily Spurgeon, Marten L. Thompson, Mitchell D. Alexander, James M. Anderson, Patrick T. Rex, Brian Stirling, Kevin Abbott, Christopher G. Lowe
While juvenile white sharks (JWS) can display regional endothermy, the need to maintain internal temperatures within an energetically favorable range likely drives thermoregulatory movements to maximize growth and foraging efficiency. Many JWS from the northeastern Pacific population aggregate seasonally in nearshore nursery habitats throughout the Southern California Bight and historic data show that
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Scaled mass index derived from aerial photogrammetry associated with predicted metabolic pathway disruptions in free-ranging St. Lawrence Estuary belugas Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-19 Meredith Sherrill, Alexandre Bernier-Graveline, Jessica Ewald, Zhiqiang Pang, Michel Moisan, Mathieu Marzelière, Maris Muzzy, Tracy A. Romano, Robert Michaud, Jonathan Verreault
The St. Lawrence Estuary (SLE) belugas (Quebec, Canada) are an endangered population whose numbers remain low despite ongoing conservation efforts. Multiple anthropogenic factors and changing environmental conditions are thought to have contributed to the recent 20-year decline in blubber fatty acid concentrations reported in stranded SLE belugas. Despite this evidence that energy reserves within the
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Lost in the dark: Antipatharia-Symbiodiniaceae association in the deep waters of the Red Sea Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-19 Silvia Vicario, Tullia I. Terraneo, Carolina Bocanegra Castano, Giovanni Chimienti, Nicolas Oury, Silvia Vimercati, Benjamin C. C. Hume, Fabio Marchese, Megan K. B. Nolan, Ameer A. Eweida, Sam J. Purkis, Mattie Rodrigue, Vincent Pieribone, Mohammed Qurban, Carlos M. Duarte, Francesca Benzoni
Black corals (Hexacorallia: Antipatharia) are a major component of mesophotic and deep marine ecosystems. Due to their preference for light deprived environments, black corals have historically been considered azooxanthellate, yet recent works have found them in association with dinoflagellates of the family Symbiodiniaceae down to 396 m depth. While corals and Symbiodiniaceae generally establish a
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Fine-scale hunting strategies in Australian fur seals Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-19 Perla Salzeri, Sebastián P. Luque, John P. Y. Arnould
IntroductionKnowledge of the hunting strategies of top predators can provide insights into the cost-benefit trade-offs of their foraging activities. Air-breathing marine predators are constrained in their foraging activities due to their metabolic expenditure at depth being supported by limited body oxygen stores. Understanding how these species adapt their behaviours to maximise foraging success is
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Comparative transcriptome analysis reveals immune-related genes involved in allograft and xenograft transplantation in Pinctada fucata Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-18 Yusi Zheng, Pei Wang, Ying Guo, Lirong Bai, Dahui Yu, Sen Zhao
BackgroundThe marine pearl culture industry is a key industry in the Beibu Gulf of China that achieves large-scale pearl production by artificial nucleus insertion in pearls. High-quality pearls can produced by xenotransplantation, but allotransplantation or xenotransplantation can lead to various immune responses, resulting in nucleus rejection or even the recipient shell death and thereby causing
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Assessing policy coherence for developing a blue economy: a case study in the Republic of Panama Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-18 Ricardo A. de Ycaza, Ana K. Spalding, Andrés M. Cisneros-Montemayor
The blue economy approach to ocean governance promises environmentally sustainable, economically viable, and socially equitable ocean-based economic growth. However, the blue economy has been inconsistently defined, interpreted, and applied, often leading to incompatibilities between the blue economy approach and existing ocean policies. We explore the blue economy in the Republic of Panama, where
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Dispersal patterns of sandfish (Holothuria scabra) larvae in Manus Province, Papua New Guinea Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-18 Peter Waldie, David A. Feary, Michael Bode, Manuai Matawai, Hugo B. Harrison, Michael L. Berumen, Chris Molai, Maunoa Karo, Richard J. Hamilton
In many tropical nations, coastal communities seek to manage their sea cucumber fisheries by establishing locally managed marine areas on their traditional fishing grounds. These managed areas can protect spawning stocks, however the extent to which they help to replenish nearby sea cucumber fisheries is debated, as nothing is known about the scales at which sea cucumber larvae disperse. In this study
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Deep learning–assisted biodiversity assessment in deep-sea benthic megafauna communities: a case study in the context of polymetallic nodule mining Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-17 Daphne Cuvelier, Martin Zurowietz, Tim W. Nattkemper
IntroductionTechnological developments have facilitated the collection of large amounts of imagery from isolated deep-sea ecosystems such as abyssal nodule fields. Application of imagery as a monitoring tool in these areas of interest for deep-sea exploitation is extremely valuable. However, in order to collect a comprehensive number of species observations, thousands of images need to be analysed
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Impacts of large scale climate modes on the current and future bimodal wave climate of a semi-protected shallow gulf Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-17 Benjamin Perry, Bas Huisman, José A. A. Antolínez, Patrick A. Hesp, Graziela Miot da Silva
The bimodal wave climate of the semi-protected shallow Gulf St Vincent in South Australia has been analyzed through a forty-year (1980-2020) wave hindcast and an investigation into the climatic drivers of wave climate anomalies is presented. The sea and swell partitions of the wave climate were modelled independently as well as using an integrated model with both partitions represented. The wave hindcast
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Numerical modelling of the interaction between flexible net panels and fluids using SPH method Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-17 Qian Shi, Depeng Zhao, Dawen Xue, Ning Zhang, Lifeng Zhang, Yun Pan
This study addresses the challenge of simulating fluid flow around flexible net panels, which are critical components in aquaculture systems. Traditional grid-based Eulerian methods struggle with the complex deformations and interactions of such panels. To fill this gap, a numerical approach leveraging the Smoothed Particle Hydrodynamics (SPH) method is introduced. The proposed approach employs a knot-spring
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Mapping elasmobranch occurrences and overlap with human activities using local knowledge and non-invasive sampling to identify areas of potential conflict Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-17 Marisa I. Batista, Catarina Abril, Ana Veríssimo, Rita P. Vasconcelos, Miguel P. Pais, Sofia Henriques
Over one-third of all elasmobranch species are at risk of extinction worldwide. This study aims to contribute to their conservation worldwide through a case study that combines georeferenced data on species presence and abundance with spatial distribution of human activities, through a Spatial Conflict Risk Index (SCRI). The SCRI pinpoints possible risk areas obtained from the spatial overlap of elasmobranch
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Development of polymorphic simple sequences repeats markers from whole gene resequencing data comparison of 68 Oncorhynchus mykiss Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-16 Haibing Ma, Tianqing Huang, Enhui Liu, Gaochao Wang, Wei Gu, Gefeng Xu
Rainbow trout (Oncorhynchus mykiss) is a significant cold-water fish farmed in China. Currently, most molecular marker-assisted breeding applications in rainbow trout rely on SSR markers. Although many rainbow trout SSR markers have been developed, methods for mining many polymorphic SSR markers from the genome and identifying them efficiently and rapidly are still lacking. For this reason, this study
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A real-time feeding decision method based on density estimation of farmed fish Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-15 Haiyan Zhao, Junfeng Wu, Liang Liu, Boyu Qu, Jianhao Yin, Hong Yu, Zhongai Jiang, Chunyu Zhou
With the global population growth and increasing demand for high-quality protein, aquaculture has experienced rapid development. Fish culture management and feed supply are crucial components of aquaculture. Traditional baiting management relies on experiential judgment and regular observation, which often leads to inefficient baiting practices and wastage. To address these issues, intelligent bait
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Environmental control of interannual and seasonal variability in dinoflagellate cyst export flux over 18 years in the Cape Blanc upwelling region (Mauritania) Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-15 Surya Eldo V. Roza, Gerard J. M. Versteegh, Vera Pospelova, Karin A. F. Zonneveld
The increasing threat of anthropogenic environment and climate change amplifies the urgency to investigate the effect of these changes on marine ecosystems. We provide information about the export flux of organic-walled dinoflagellate cysts between 2003 and 2020 in the upwelling ecosystem off Cape Blanc (Mauritania), one of the world’s most productive regions. We compared the cyst export flux with
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A machine learning approach for protected species bycatch estimation Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-15 Christopher A. Long, Robert N. M. Ahrens, T. Todd Jones, Zachary A. Siders
IntroductionMonitoring bycatch of protected species is a fisheries management priority. In practice, protected species bycatch is difficult to precisely or accurately estimate with commonly used ratio estimators or parametric, linear model-based methods. Machine-learning algorithms have been proposed as means of overcoming some of the analytical hurdles in estimating protected species bycatch.MethodsUsing
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First stable isotope and mercury assessment of bonnethead and Caribbean sharpnose sharks from a potential nursery ground in the Archipelago of Bocas del Toro, Panamanian Caribbean Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-15 Dalia C. Barragán-Barrera, Carlos J. Polo-Silva, Cindy González, Miguel Rodríguez, Laura Baldrich, Christian Bermúdez-Rivas, Ángela Margarita Moncaleano-Niño, Paco Bustamante, Susana Caballero, Andrea Luna-Acosta
Bonnethead and Caribbean sharpnose sharks frequent coastal waters, rendering them vulnerable to overexploitation, with the bonnethead shark listed as endangered by the IUCN. Marine Protected Areas (MPAs) have been suggested as a management strategy to regulate shark-exploitation. Moreover, it’s essential to identify key areas where nursery grounds (NG) and adult habitats overlap to prioritize conservation
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Littered cigarette butts in both coastal and inland cities of China: occurrence and environmental risk assessment Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-12 Qiying Yang, Weibin Zhong, Yaqian Jiao, Yuan Zhang, Liuling Cheng, Yifan Ruan, Shanshan Yang
Cigarette butts (CBs) pollution is a critical global environmental issue, yet limited research exists on CBs pollution in both coastal and inland Chinese cities with varying development levels. This study investigated CBs occurrence, contamination, Cigarette Butts Pollution Index (CBPI), and heavy metal leakage in four cities. The results of CBs collected over multiple days revealed higher contamination
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Dynamic filtration in baleen whales: recent discoveries and emerging trends Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-12 Alexander J. Werth, Jean Potvin
Recent findings have greatly improved our understanding of mysticete oral filtration, and have upended the traditional view of baleen filtration as a simple process. Flow tank experiments, telemetric tag deployment on whales, and other lab and field methods continue to yield new data and ideas. These suggest that several mechanisms arose from ecological, morphological, and biomechanical adaptations
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Imbalance of sediment transport in a meso-tidal bay: effect of tidal pumping and residual circulation Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-11 Su In Kim, Jun Young Seo, Jae-Hun Park, Pyeong Joong Kim, In Gwon Kim, Kyung Man Kim, Ho Kyung Ha
In-situ mooring systems with acoustic Doppler current profilers were installed in the western (TM01) and eastern (TM02) parts of Yeosu Bay from September 3 to October 2, 2021, to understand the controlling mechanisms of suspended sediment transport. In the bay, freshwater from the Seomjin River freely exchanges with seawater from the open sea. Over the mooring period, current flows were mainly dominated
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Investigating the influence of sub-mesoscale current structures on Baltic Sea connectivity through a Lagrangian analysis Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-11 Saeed Hariri, H. E. Markus Meier, Germo Väli
This study explores the impact of sub-mesoscale structures and vertical advection on the connectivity properties of the Baltic Sea using a Lagrangian approach. High-resolution flow fields from the General Estuarine Transport Model (GETM) were employed to compute Lagrangian trajectories, focusing on the influence of fine-scale structures on connectivity estimates. Six river mouths in the Baltic Sea
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Nitrate fate in coastal unconfined aquifers influenced by preferential flows Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-11 Chao Gao, Jun Kong, Jun Wang, Weilun Chen
This study examined the influence of preferential flow on pore water flows and marine nitrogen transport reaction in variable saturation and variable density coastal aquifers. The 2-D unconfined aquifer model established was based on the software COMSOL by coupling the dynamic and chemical processes together. The results showed that preferential flow affects groundwater flow and salinity distribution
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Multisensor data fusion of operational sea ice observations Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-11 Keguang Wang, Caixin Wang, Frode Dinessen, Gunnar Spreen, Robert Ricker, Xiangshan Tian-Kunze
Multisensor data fusion (MDF) is a process/technique of combining observations from multiple sensors to provide a more robust, accurate and complete description of the concerned object, environment or process. In this paper we introduce a new MDF method, multisensor optimal data fusion (MODF), to fuse different operational sea ice observations around Svalbard. The overall MODF includes regridding,
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The role of tidal creeks in shaping carbon and nitrogen patterns in a Chinese salt marsh Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-11 Ziwen Ma, Yanan Wu, Siqi Zhao, Yueyan Pan, Jiakai Liu, Mingxiang Zhang, Zhenming Zhang
Tidal creeks play a crucial role in lateral transport of carbon and nutrients from tidal salt marshes. However, the specific impact of tidal creek development on carbon and nutrient distribution within the marsh remains poorly understood. The objective of this study is to assess the influence of lateral tidal flooding through the tidal creeks on the spatial distribution of carbon and nitrogen fractions
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Lightweight underwater image adaptive enhancement based on zero-reference parameter estimation network Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-11 Tong Liu, Kaiyan Zhu, Xinyi Wang, Wenbo Song, Han Wang
Underwater images suffer from severe color attenuation and contrast reduction due to the poor and complex lighting conditions in the water. Most mainstream methods employing deep learning typically require extensive underwater paired training data, resulting in complex network structures, long training time, and high computational cost. To address this issue, a novel ZeroReference Parameter Estimation
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Artificial structure selection by economically important reef fishes at North Carolina artificial reefs Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-11 Ryan M. Tharp, Nathan J. Hostetter, Avery B. Paxton, J. Christopher Taylor, Jeffrey A. Buckel
Artificial reefs can play an important role in marine fisheries management by supplementing or enhancing natural habitats. Despite their increased use in recent years, the choice of structures used at artificial reefs remains largely haphazard due to the lack of information on reef structure performance. Few studies have examined the use of different artificial reef structures by individual fish. From
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Influence of glacial influx on the hydrodynamics of Admiralty Bay, Antarctica - study based on combined hydrographic measurements and numerical modeling Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-11 Maria Osińska, Agnieszka Herman
This study investigates the impact of glacial water discharges on the hydrodynamics of a glacial bay in Antarctica, comparing it to well-studied northern hemisphere fjords. The research was carried out in Admiralty Bay (AB) in the South Shetland Islands, a wide bay adjacent to twenty marine-terminating glaciers. From December 2018 until February 2023, AB water properties were measured on 136 days.
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The distinctive morphology of caudal neurosecretory system and its impact on Pampus argenteus throughout the breeding season Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-11 Chunyang Guo, Xiaodong Zhang, Huiyang Song, Xubo Wang, Shanliang Xu, Danli Wang
The caudal neurosecretory system (CNSS) of teleost is intricately linked to reproduction. This study sought to explore the association between the CNSS and the reproductive cycle of Pampus argenteus. Utilizing microscopy and transmission electron microscopy, we observed the morphological alterations within the CNSS. Furthermore, we quantified the levels of urotensin-I (U-I), urotensin-II (U-II), cortisol
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Porewater exchange and iron transformation in a coastal groundwater system: a field investigation, driving mechanisms analysis, and conceptual model Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-11 Wenran Cao, Harald Hofmann, Guanxi Yan, Alexander Scheuermann
The high concentration of dissolved iron (Fe) in coastal waters triggers Lyngbya blooms in the Moreton Bay region of Southeast Queensland, Australia. Previous studies have provided a restricted understanding of how land-derived Fe is transported and then transformed into other forms (e.g., Fe oxides) before its release into the ocean. Here, a field investigation was conducted at a sandy beach on the
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Modeling sound speed profile based on ocean normal mode Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-11 Ke Qu, Weifeng Yin, Fengqin Zhu, Lei Meng
IntroductionStatistical methods such as empirical orthogonal functions (EOFs) are often used to model the sound speed profile (SSP). However, their statistical nature often leads to the sample dependence and physical fuzziness.MethodThis study proposes a technique for modeling the SSP from the perspective of ocean dynamics. It employs the ocean normal mode, which is the mode of fluid particles motion
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Mutual facilitation between foundation species Mytilus edulis and Lanice conchilega promotes habitat heterogeneity on tidal flats Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-10 Janne Nauta, Kasper J. Meijer, Lissie W. de Groot, Valérie C. Reijers, Tjeerd J. Bouma, Daphne van der Wal, Han Olff, Sander J. Holthuijsen, Allert I. Bijleveld, Henk W. van der Veer, Oscar Franken, Laura L. Govers
Foundation species that modify their habitat can facilitate other species, including other foundation species. Most studies focus solely on a single foundation species, overlooking such facilitation cascades. In this study, we investigated the interactions between the two coastal foundation species Mytilus edulis (blue mussel) and Lanice conchilega (sand mason worm). We investigated whether these species
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Distribution of polysaccharidic and proteinaceous gel−like particles in three cyclonic eddies in the Eastern Tropical North Atlantic Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-10 Quentin Devresse, Kevin W. Becker, Anja Engel
Transparent exopolymer particles (TEP) and Coomassie stainable particles (CSP), two prominent classes of gel−like particles in the ocean primarily produced by phytoplankton, play crucial roles in ecological and biogeochemical processes, influencing microbial nutrition, growth, and particle aggregation. The distribution of these particles is intricately linked to the spatiotemporal dynamics of phytoplankton
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Sounding out horse mussel sediment thickness: an integrated data approach Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-10 Jack Sheehy, Richard Bates, Michael Bell, Jo Porter
Horse mussel beds are listed as a Priority Marine Feature (PMF) in Scotland for their influence in the creation of diverse benthic communities and provision of ecosystem services. In Scotland, horse mussel beds are also recognised for their importance in marine carbon sequestration. Unfortunately, there is a paucity of data on horse mussel bed carbon stocks and sediment thickness. There are also significant
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A transformer-based method for correcting significant wave height numerical forecasting errors Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-10 Xianbiao Kang, Haijun Song, Zhanshuo Zhang, Xunqiang Yin, Juan Gu
Accurate significant wave height (SWH) forecasting is essential for various marine activities. While traditional numerical and mathematical-statistical methods have made progress, there is still room for improvement. This study introduces a novel transformer-based approach called the 2D-Geoformer to enhance SWH forecasting accuracy. The 2D-Geoformer combines the spatial distribution capturing capabilities
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Expanding oxygen minimum zones in the northern Indian Ocean predicted by hypoxia-related bacteria Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-09 Jinyan Liu, Zhisong Cui, Xiao Luan, Zongling Wang, Xuelei Zhang
Oxygen minimum zones (OMZs) in the ocean are areas with dissolved oxygen (DO) concentrations below critical thresholds that impact marine ecosystems and biogeochemical cycling. In the northern Indian Ocean (NIO), OMZs exhibit a tendency to expand in mesopelagic waters and contribute significantly to global nitrogen loss and climate change. However, the microbial drivers of OMZ expansion in the NIO
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Development of a multi-layer network model for characterizing energy cascade behavior on turbulent mixing Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-09 Beibei Mao, Hua Yang, Dalei Song, Junyang Li, Weicheng Sun, Xiuyan Liu
Eddies of various sizes are visible to the naked eye in turbulent flow. Each eddy scale corresponds to a fraction of the total energy released by the turbulence cascade. Understanding the dynamic mechanism of the energy cascade is crucial to the study of turbulent mixing. In this paper, an energy cascade multi-layer network (ECMN) based on the complex network algorithm is proposed to investigate the
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Tensioned flexible riser vibrations under wave excitation, an investigation on the scale effect Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-09 Yunli Feng, Sunwei Li, Daoyi Chen
In order to study the scale effect in wave-structure interactions and the role that structure-related parameters (tension T or bending stiffness EI) plays, riser model tests under regular waves were conducted using the model with multiple geometric scales (1:15, 1:12 and 1:9) in a wave basin. The riser model used is a novel structural design combing the outer polyvinyl chloride pipe with the core steel
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Short-term growth of octocorals Swiftia exserta and Muricea pendula in a mesocosm Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-09 Kassidy Lange, Peter Etnoyer
To optimize fragmentation approaches for restoration applications, this study assessed fragmentation size influences on health and growth rates of mesophotic octocorals. Growth rates for Swiftia exserta (n=6) and Muricea pendula (n=9) were determined using photogrammetry in a mesocosm over a 90-day trial. No significant difference was found in growth between fragmented size classes (3, 6, and 12 cm)
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Upscaling marine forest restoration: challenges, solutions and recommendations from the Green Gravel Action Group Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-09 Georgina Valentine Wood, Karen Filbee-Dexter, Melinda Ann Coleman, Jurgen Valckenaere, J. David Aguirre, Paige M. Bentley, Paul Carnell, Phoebe Damayanthi Dawkins, Lauren N. Dykman, Hannah S. Earp, Leeann B. Ennis, Prue Francis, João N. Franco, Hilary Hayford, Joleah B. Lamb, Scott Douglas Ling, Cayne Layton, Ella Lis, Beau Masters, Nicole Miller, Pippa Jane Moore, Chris Neufeld, Jacqueline B. Pocklington
IntroductionTo counteract the rapid loss of marine forests globally and meet international commitments of the UN Decade on Ecosystem Restoration and the Convention on Biological Diversity ‘30 by 30’ targets, there is an urgent need to enhance our capacity for macroalgal restoration. The Green Gravel Action Group (GGAG) is a global network of 67 members that are working on the restoration of a diverse
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Short-term and long-term exposure to combined elevated temperature and CO2 leads to differential growth, toxicity, and fatty acid profiles in the harmful dinoflagellate Karlodinium veneficum Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-09 Nayani K. Vidyarathna, Laura E. Smith, Katherine R. Miller, Kathryn J. Coyne, Jonathan H. Cohen, Mark E. Warner
Ocean warming and acidification may significantly alter the distribution and intensity of harmful algal blooms as well as their effects on marine food webs. Estimating such effects rely, in part, on understanding the physiological response of individual algal species to controlled laboratory simulations of climate change conditions. Here we report the physiological response of the harmful dinoflagellate
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Learning degradation-aware visual prompt for maritime image restoration under adverse weather conditions Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-09 Xin He, Tong Jia, Junjie Li
Adverse weather conditions such as rain and haze often lead to a degradation in the quality of maritime images, which is crucial for activities like navigation, fishing, and search and rescue. Therefore, it is of great interest to develop an effective algorithm to recover high-quality maritime images under adverse weather conditions. This paper proposes a prompt-based learning method with degradation
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ChatBBNJ: a question–answering system for acquiring knowledge on biodiversity beyond national jurisdiction Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-08 Xiaowei Wang, Mingdan Zhang, Hao Liu, Xiaodong Ma, Yingchao Liu, Yitong Chen
The marine biodiversity in Areas beyond national jurisdiction (ABNJ), encompassing approximately two-thirds of the global ocean, is persistently declining. In 2023, the agreement on the Conservation and Sustainable Use of Marine Biodiversity of Areas Beyond National Jurisdiction (BBNJ) was officially adopted. Implementing the BBNJ Agreement has the potential to effectively meet global needs for preserving
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Modulation of regional carbon uptake by AMOC and alkalinity changes in the subpolar North Atlantic under a warming climate Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-08 Qi Zhang, Takamitsu Ito, Annalisa Bracco
The slowdown of the Atlantic Meridional Overturning Circulation (AMOC) and associated consequences on ocean carbon uptake could have large implications for the Earth's climate system and its global carbon cycle. This study analyzes ten Earth System Models from the Coupled Model Intercomparison Project Phase 6 (CMIP6) and reveals that the regional carbon uptake in the subpolar North Atlantic under a
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Mechanism of rapid accretion-erosion transition in a complex hydrodynamic environment based on refined in-situ data Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-08 Jie Jiang, Weiming Xie, Naiyu Zhang, Yuan Xu, Chunyan Zhu, Jianliang Lin, Leicheng Guo, Jian Shen, Qing He
Morphological changes in estuaries are typically discussed on decadal time scales, with reported changes often exceed several decimeters. In our study, we utilized refined in-situ data to investigate bed-level changes and rapid accretion-erosion transitions during tidal cycles off the Changjiang Estuary. A field study employing a high-resolution bottom tripod system was conducted, measuring various
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Environmental impact on marginal coastal benthic communities within the Jeju Island, South Korea temperate transition zone Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-08 Garance Perrois, Anna B. Jöst, Kyeong-Tae Lee, Leonard M. T. Pons, Hyun-Sung Yang, Young Baek Son, Heung-Sik Park, Do-Hyung Kang, Taihun Kim
Aim of studyMarine climatic transition zones are boundary areas of major climate zones, here the boundary between the subtropical and temperate zones. They present areas containing high abundance of organisms living at the limit of their physiological tolerance. These marginal populations are particularly sensitive to changes in their environment. As such, marine climatic transition zones are excellent
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Changes in size-dependent Chlorophyll a concentration and group-specific picophytoplankton abundance in short-term nutrient-addition experiments in the Equatorial Eastern Indian Ocean Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-08 Ping Sun, Kai-Ming Sun, Yuping Zhou, Lu Liu, Chao Yuan, Zongjun Xu, Yan Li, Xuelei Zhang, Zongling Wang
To clarify the changes in phytoplankton community and influencing factors in short-term nutrient-addition experiments in the Equatorial Eastern Indian Ocean, we conducted three experiments (one in situ-like experiment, one on-deck experiment with deep seawater, and one on-deck experiment with surface seawater). Our findings indicate that when nutrients were added, there was a more significant increase
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Parameterization scheme of the sea surface drag coefficient considering the influence of wave states and sea spray stress Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-08 Zeqi Zhao, Jian Shi, Hanshi Wang, Zhenhui Yi, Wenjing Zhang, Xueyan Zhang
The drag coefficient of the sea surface is crucial for the exchange of momentum between the ocean and atmosphere. The wave state significantly influences the variability of the drag coefficient. In the past, researchers commonly employed single-parameterization methods to describe this influence. However, the influence of wave conditions on drag coefficient is complex and variable, and it is difficult
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Bioavailability and remineralization rates of sediment-derived dissolved organic carbon from a Baltic Sea depositional area Front. Marine Sci. (IF 3.7) Pub Date : 2024-04-08 Monika Lengier, Katarzyna Koziorowska-Makuch, Beata Szymczycha, Karol Kuliński
This pilot study investigated the bioavailability and remineralization kinetics of the sediment-derived dissolved organic carbon (DOC) from the Gdańsk Deep, a depositional area in the Baltic Sea. This was assessed in the long-lasting (126 d) incubation experiment, in which the mixture of DOC from sediment pore water and bottom water was exposed to oxic microbial respiration with incubation of bottom