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The summer bacterial and archaeal community composition of the northern Barents Sea Prog. Oceanogr. (IF 4.416) Pub Date : 2023-05-30 Stefan Thiele, Anna Vader, Stuart Thomson, Karoline Saubrekka, Elzbieta Petelenz, Hilde Rief Armo, Oliver Müller, Lasse Olsen, Gunnar Bratbak, Lise Øvreås
Climate change related alterations in the Arctic have influences on the marine ecosystems, in particular on phytoplankton bloom dynamics. Since phytoplankton blooms are the main provider of carbon sources to the microbial loop, the bacterial and archaeal community are affected by the changes as well. Warmer water and less sea ice can lead to an earlier onset of phytoplankton blooms and consequently
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Late-season nitrogen uptake across the western coastal Alaskan Arctic Limnol. Oceanogr. (IF 5.019) Pub Date : 2023-05-30 Brianna C. Stanley, Rachel E. Sipler, Quinn N. Roberts, Jenna L. Spackeen, E. Zane Norton, Deborah A. Bronk
Productivity in the Arctic is expected to increase as temperatures and the number of open water days rise. With this increased productivity, the coastal shelves of the Arctic Ocean may act as a sink for atmospheric carbon. However, this storage is dependent on a sufficient nitrogen (N) supply and current literature on biogeochemical rates of N uptake in this region is severely limited. Here, we report
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Integrating ocean observations across body-size classes to deliver benthic invertebrate abundance and distribution information Limnol. Oceanogr. Lett. (IF 8.507) Pub Date : 2023-05-31 Henry A. Ruhl, Brian J. Bett, Jeroen Ingels, Adrian Martin, Andrew R. Gates, Andrew Yool, Noëlie M.A. Benoist, Ward Appeltans, Kerry L. Howell, Roberto Danovaro
Invertebrate animals living at the seafloor make up a prominent component of life globally, spanning 10 orders of magnitude in body size over 71% of Earth's surface. However, integrating information across sizes and sampling methodologies has limited our understanding of the influence of natural variation, climate change and human activity. Here, we outline maturing practices that can underpin both
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Sulfate enrichment in estuaries of the northwestern Gulf of Mexico: The potential effect of sulfide oxidation on carbonate chemistry under a changing climate Limnol. Oceanogr. Lett. (IF 8.507) Pub Date : 2023-05-30 Hang Yin, Xinping Hu, Larissa M. Dias
Water quality parameters from 2000 to 2020 were used to identify the spatial and temporal sulfate variations in estuaries of the northwestern Gulf of Mexico. Sulfate enrichment relative to conservative mixing was found to be associated with a low river discharge period from 2012 to 2014 in all estuaries. Based on reaction stoichiometry, sedimentary sulfide oxidation holds significant potential for
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Characteristics of submesoscale eddy structures within mesoscale eddies in the Gulf of Mexico from 1/48° ECCO estimates Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-31 Paul A. Ernst, Bulusu Subrahmanyam, Corinne B. Trott, Alexis Chaigneau
Submesoscale oceanic structures (<10-20 km) such as eddies and fronts are often difficult to describe given the influence of the mesoscale. In order to characterize the surface signatures of submesoscale structures, we utilize a custom spatial filtering function to separate the meso- and large-scale sea surface height (SSH) signal from the small scale SSH signal of 1/48° high resolution estimates provided
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Per-length biomass estimates of Antarctic krill (Euphausia superba) Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-31 Abigail J. R. Smith, Simon J. Wotherspoon, Martin J. Cox
Total biomass and areal biomass density are often necessary to establish ecological relationships and enable informed management decisions, in particular setting fisheries catch limits. Further refining these estimates to sub-population biomass based on length informs ecological models of predator-prey dynamics, ecosystem energy transfer and biogeochemical cycles; however, measures of uncertainty in
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Gaining a (tube) foothold – trends and status following two decades of the long-spined echinoid Diadema setosum (Leske, 1778) invasion to the Mediterranean Sea Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-31 Rotem Zirler, Lynn Angele Leck, Tamar Feldstein Farkash, Martina Holzknecht, Andreas Kroh, Vasilis Gerovasileiou, Mehmet Fatih Huseyinoglu, Carlos Jimenez, Vasilis Resaikos, Mehmet Baki Yokeş, Omri Bronstein
The Eastern Mediterranean Sea is an exceptional habitat. Its relative isolation and distinct characteristics create a unique ecosystem recognized as a marine biodiversity hot spot, where one-fifth of the species are endemic. Yet, native Mediterranean biodiversity is under increasing threat, mainly due to massive alien species invasions of Indo-Pacific origin. To date, more than 800 non-indigenous species
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Shrinking of the Arabian Sea oxygen minimum zone with climate change projected with a downscaled model Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-31 Parvathi Vallivattathillam, Zouhair Lachkar, Marina Lévy
In Arabian Sea (AS), land-locked northern boundary and strong seasonal productivity lead to the formation of one of the most intense open ocean Oxygen Minimum Zones (OMZs). Presence of this perennial OMZ has significant consequences on adjacent coastal fisheries and ecosystem. Simulations from CMIP5 suggest significant weakening of both monsoonal winds and productivity under high emission scenario
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From shallow sea to deep sea: research progress in underwater image restoration Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-31 Wei Song, Yaling Liu, Dongmei Huang, Bing Zhang, Zhihao Shen, Huifang Xu
Underwater images play a crucial role in various fields, including oceanographic engineering, marine exploitation, and marine environmental protection. However, the quality of underwater images is often severely degraded due to the complexities of the underwater environment and equipment limitations. This degradation hinders advancements in relevant research. Consequently, underwater image restoration
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Towards understanding host–pathogen dynamics of cetacean poxvirus: attainable approach through the application of a repetitive non-invasive skin sampling in bottlenose dolphins (Tursiops truncatus) under human care Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-31 Simone Segura-Göthlin, Antonio Fernández, Manuel Arbelo, Javier Almunia, Lorenzo von Fersen, Katrin Baumgartner, José Guerra Garcés, Aldo Gutiérrez Llanos, Idaira Felipe-Jiménez, Ana Colom-Rivero, Eva Sierra
Nowadays, zoos and aquariums, along with the constant advancement of sociocultural moral values, are proactively committed to ensuring and safeguarding cetacean health standards. This entails developing new approaches to health assessments by embracing minimally invasive sampling methods and enhanced animal handling and management, among other aspects. Hence, in the present survey, to appraise skin
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Decades performance of marine science and education by region and discipline in China Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-31 Tianran Hua, Xiao Ruan, Ziyu Qu, Cheng Xue, Shengyun Yang, Yanming Yao, Guanqiong Ye
Strengthening scientific research, technological capacity and sustainable use of oceans in developing countries are the goals of the UN’s 2030 Agenda for Sustainable Development. Marine science and education as the key foundation for achieving these goals has been seldom evaluated quantitatively and collectively. This paper adopted the DEA modelling from economics for analyzing the long-term input
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Dietary inclusion of blood hydrolysates affects muscle growth in European seabass (Dicentrarchus labrax) Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-31 Cristina Velasco, Daniela Resende, Beatriz Oliveira, Paula Canada, Miguel Pereira, Carlos Pereira, Manuela Pintado, Luisa M. P. Valente
Dietary supplementation with hydrolysates has been suggested to influence muscle protein synthesis and fish growth. This study assessed the impact of including 3% swine blood hydrolysates (BH) in a plant-based diet on muscle cellularity and the expression of molecular markers related to muscle fibre proliferation and hypertrophic growth of European seabass. Three BH fractions were obtained by two different
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A regional analysis of tide-surge interactions during extreme water levels in complex coastal systems of Aotearoa New Zealand Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-31 Wagner Costa, Karin R. Bryan, Scott A. Stephens, Giovanni Coco
Tide-surge interaction (TSI) is a critical factor in assessing flooding in shallow coastal systems, particularly in estuaries and harbours. Non-linear interactions between tides and surges can occur due to the water depth and bed friction. Global investigations have been conducted to examine TSI, but its occurrence and impact on water levels in Aotearoa New Zealand (NZ) have not been extensively studied
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Plant trait-mediated drag forces on seedlings of four tidal marsh pioneer species Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-31 Charlotte S. Steinigeweg, Swantje Löbel, Boris Schröder, Ken Schoutens, Svenja Reents, Ben R. Evans, Stijn Temmerman, Tjeerd J. Bouma, Iris Möller, Maike Paul
Salt marshes play an important role in coastal protection by reducing the impact of waves and shoreline erosion risks. While mature vegetation is responsible for the persistence and stability of marsh ecosystems, seedling survival of pioneer species is especially crucial for marsh propagation. Marsh seedlings, however, may be threatened by climate change induced increased coastal storm surge intensity
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Biogeochemical structure of the Laptev Sea in 2015-2020 associated with the River Lena plume Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-31 Lina Xie, Evgeniy Yakushev, Igor Semiletov, Andrey Grinko, Ivan Gangnus, Anfisa Berezina, Alexander Osadchiev, Igor Zhdanov, Alexander Polukhin, Julia Moiseeva, Darya Purgina, Irina Pipko, Svetlana Pugach, Oleg Dudarev, Zhenming Ge
The discharge of rivers and the subsequent dispersion of their plumes play a pivotal role in the biogeochemical cycling of the Arctic Ocean. Based on the data collected during annual transects conducted in the autumn period (September-October) from 2015-2020, this study explores the effect of River Lena plume dispersion on the seasonal and interannual changes in the hydrophysical and biogeochemical
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Feeding on the smallest cells: an in situ study of picoplankton capture by bivalve molluscs from oligotrophic waters Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-31 Tal Amit, Raz Moskovich, Yuval Jacobi, Sandra E. Shumway, J. Evan Ward, Peter Beninger, Gitai Yahel, Yossi Loya
IntroductionBivalve molluscs are among the most prominent coastal benthic-suspension-feeders and their farming is the largest and fastest-growing sector of aquaculture. More than a century of intensive laboratory studies (but surprisingly few in-situ studies) has yielded the consensus view that bivalves mainly capture particles >4µm. Nonetheless, bivalves thrive throughout the world’s oceans that are
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Different flavours of oxygen help quantify seasonal variations of the biological carbon pump in the Celtic Sea Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-31 Isabel Seguro, Alina D. Marca, Jamie D. Shutler, Jan Kaiser
Shelf seas represent only 10% of the World’s Ocean by area but support up to 30% of its primary production. There are few measurements of biological production at high spatial and temporal resolution in these physically and biologically dynamic systems. Here, we use dissolved oxygen to-argon (O2/Ar) ratios and oxygen triple isotopes in O2 (16O, 17O, 18O) to estimate net community production, N(O2/Ar)
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Bayesian learning of coupled biogeochemical-physical models Prog. Oceanogr. (IF 4.416) Pub Date : 2023-05-30 Abhinav Gupta, Pierre F.J. Lermusiaux
Predictive dynamical models for marine ecosystems are used for a variety of needs. Due to the sparse measurements and limited understanding of the myriad of ocean processes, there is however significant uncertainty. There is model uncertainty in the parameter values, functional forms with diverse parameterizations, and level of complexity needed, and thus in the state variable fields. We develop a
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Does the COVID-19 pandemic play a role in the spatial and temporal variations of microplastics? Evidence from a tropical river in southern India Mar. Pollut. Bull. (IF 7.001) Pub Date : 2023-05-30 Kaniyambadi Amrutha, Anish Kumar Warrier, Nelson Rangel-Buitrago
Personal protective equipment (PPE) use has increased because of COVID-19, producing more microplastics (MPs). The pandemic's impact on MP pollution in Indian rivers is little understood. In this study, the Netravathi River in Karnataka was investigated for the spatiotemporal distribution of MPs. The MPs abundance, size, and categories varied seasonally, with a higher concentration during the monsoon
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Experimental nutrient enrichment of forest streams reduces ecosystem nitrogen and phosphorus storage Limnol. Oceanogr. (IF 5.019) Pub Date : 2023-05-30 Phillip M. Bumpers, Amy D. Rosemond, David W. P. Manning, John S. Kominoski, Jonathan P. Benstead, Lee M. Demi
Streams store nutrients in standing stocks of organic matter (OM) and associated biologically sequestered elements. Unlike standing stocks of autotrophs, detritus is depleted by nutrient enrichment, potentially reducing areal storage of detritus-associated nutrients. To test effects of nutrient-loading on storage of nitrogen (N) and phosphorus (P) by autotrophic and detrital-pool compartments, we quantified
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Factors regulating the concentration of particulate iodine in coastal seawater Limnol. Oceanogr. (IF 5.019) Pub Date : 2023-05-29 Yuhi Satoh, Shigeyoshi Otosaka, Takashi Suzuki, Takahiro Nakanishi
To investigate the factors regulating the concentration of particulate iodine (PI) in seawater, it was measured in two Pacific coastal areas adjacent to Japan (offshore Aomori and offshore Fukushima) in two seasons (May and October) along with parameters such as particulate organic carbon (POC) and nitrogen (PON), dissolved iodine (DI), and phytoplankton pigments. The observed PI concentrations ranged
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The effects of microplastic on the thermal profile of sand: implications for marine turtle nesting grounds Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-29 Mariana M. P. B. Fuentes, Valencia Beckwidth, Matthew Ware
IntroductionMicroplastics (i.e., plastic debris smaller than 5mm) found in coastal areas can impact the marine habitat used by endangered species since they may alter sand properties including temperature and permeability. Such alterations may pose a significant threat to marine turtle populations as nest productivity, sexual development, and hatchling fitness are dependent on conditions within the
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Genetic footprints of Quaternary glacial cycles over the patterns of population diversity and structure in three Nacella (Patellogastropoda: Nacellidae) species across the Magellan province in southern South America Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-29 Claudio A. González-Wevar, María Carla de Aranzamendi, Nicolás I. Segovia, Sebastián Rosenfeld, Claudia S. Maturana, Cristian Ríos Molina, Paul Brickle, Cristina N. Gardenal, Ricardo Bastida, Elie Poulin
Quaternary glaciations severely altered landscape/seascape at high latitudes and had major consequences on species geographical ranges, population sizes, genetic differentiation and speciation rates. The Magellan province in southern South America, constitutes an interesting area to evaluate the effect of glaciations over near-shore marine benthic organisms. Existing data have showed clear signatures
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Understanding the breeding phenology of anadromous fish Tenualosa ilisha (Hamilton, 1822) in relation to climatic variables in Brahmaputra River, India Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-29 Simanku Borah, Amiya Kumar Sahoo, Vaisakh Gopinathapillai, Dharmendra Kumar Meena, Ashok Kumar Jaiswar, Geetanjali Deshmukhe, Anil Kumar Yadav, Pranab Gogoi, Debasmita Mohanty, Karankumar Ramteke, Birendra Kumar Bhattacharjya, Basanta Kumar Das
The Hilsa, Tenualosa ilisha, commands a very high value as food fish. The present study was carried out to understand the breeding phenology of T. ilisha in relation to climatic variables. Monthly fish samples were collected from two landing centres, namely, Uzanbazar (Guwahati) and Shri Ramghat, Dhubri, of River Brahmaputra during May 2018 to April 2019. The assessment of gonadosomatic index (GSI)
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Macrophytes and water quality in a large Baltic lagoon: relevance, development and restoration perspectives Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-29 Gerald Schernewski, Rene Friedland, Simon Paysen, Martynas Bucas, Sven Dahlke, Mario von Weber
We combine historical and recent monitoring data with modeling to get a better insight into water quality development of the large Oder/Szczecin Lagoon at the German/Polish border in the southern Baltic Sea region and especially of the role of macrophytes. Data indicates that the system is eutrophic for centuries and a naturally eutrophic system. During the last decades, external nutrient loads decreased
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Best practices for operating underwater gliders in Atlantic Canada Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-29 Nicolai von Oppeln-Bronikowski, Brad de Young, Melany Belzile, Adam Comeau, Frédéric Cyr, Richard Davis, Pamela Emery, Clark Richards, David Hebert, Jude Van Der Meer
Ocean gliders are versatile tools for making ocean observations. This paper summarizes the experience, of nearly two decades, of glider observing activity in Atlantic Canada. It reviews key considerations for operating gliders based on the experience and the lessons learned. This paper has three main goals: 1. To provide new and emerging glider users with guidance and considerations for developing
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The potential use of genomic methods in bottom trawl surveys to improve stock assessments in Europe Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-29 Rebeca Rodríguez-Mendoza, Fran Saborido-Rey
In Europe, research surveys carried out by state governments provide the great majority of fishery-independent data. Member States (MS) in the European Union (EU) regularly conduct research surveys to provide the necessary data to assess the status of exploited fish stocks and to monitor the general condition of the marine ecosystem. In the surveys, samplings are carried out throughout the distribution
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Assessment of filter subsampling and extrapolation for quantifying microplastics in environmental samples using Raman spectroscopy Mar. Pollut. Bull. (IF 7.001) Pub Date : 2023-05-26 Dounia El Khatib, Troy D. Langknecht, Michaela A. Cashman, Mark Reiss, Kelly Somers, Harry Allen, Kay T. Ho, Robert M. Burgess
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Determination and evaluation of the ecological risk of mercury in different granulometric fractions of sediments from a public supply river in Brazil Mar. Pollut. Bull. (IF 7.001) Pub Date : 2023-05-26 Vanessa S. de Carvalho, Caio S.A. Felix, Jucelino B. da Silva Junior, Olivia M.C. de Oliveira, Jailson B. de Andrade, Sergio L.C. Ferreira
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Factors limiting the spread of middle- and low-altitude fishes to the Qinghai-Tibet plateau Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-26 Songtao Li, Haoran Gu, Yuanfu Wang, Zhijian Wang
The distribution pattern of species is determined by the environment and their adaptability to the environment. Qinghai-Tibet Plateau has become a natural laboratory for studying adaptive evolution due to its extreme environmental characteristics such as low temperature, low oxygen, high salinity and high ultraviolet radiation (UVR). Fish are sensitive to the environmental stress, so they are ideal
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Biochemical composition and reproductive cycle of the clam Chamelea gallina in the Northern Adriatic Sea: an after-10-year comparison of patterns and changes Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-26 Vanessa Moschino, Giulia Rizzo, Tihana Marĉeta, Federica Cernigai, Luciano Masiero, Luisa Da Ros, Maria Gabriella Marin
The study of the relationships between growth patterns, energy reserves and reproduction, and their interdependency with environmental variables is crucial to increase the knowledge of the physiological processes regulating the recruitment and survival of commercially exploited bivalve species. In the present study, the biochemical profile and gametogenic cycle of the striped Venus clam Chamelea gallina
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Biogeochemical cycling of chromium and chromium isotopes in the sub-tropical North Atlantic Ocean Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-26 Wenhao Wang, Heather Goring-Harford, Korinna Kunde, E. Malcolm S. Woodward, Maeve C. Lohan, Douglas P. Connelly, Rachael H. James
Chromium (Cr) is a redox-sensitive element and because Cr isotopes are fractionated by redox and/or biological processes, the Cr isotopic composition of ancient marine sediments may be used to infer changes in past seawater oxygenation or biological productivity. While there appears to be a ‘global correlation’ between the dissolved Cr concentration and Cr isotopic composition of seawater, there is
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Comparative effects of temperature and salinity on growth of four harmful Chattonella spp. (Raphidophyceae) from tropical Asian waters Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-26 Wai Mun Lum, Setsuko Sakamoto, Koki Yuasa, Kazuya Takahashi, Koyo Kuwata, Taketoshi Kodama, Tomoyo Katayama, Chui Pin Leaw, Po Teen Lim, Kazutaka Takahashi, Mitsunori Iwataki
In Asia, four harmful raphidophyte species, Chattonella malayana, C. marina, C. subsalsa, and C. tenuiplastida, coexist in the tropical waters but only C. marina was detected in temperate waters. This occurrence pattern pointed to a potentially distinct ecophysiological niche occupancy and possible species dispersion. The growth physiology of these species isolated from tropical Southeast Asia was
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Understanding nitrogen dynamics in coral holobionts: comprehensive review of processes, advancements, gaps, and future directions Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-26 Moyang Li, Hua-Xia Sheng, Mengyao Dai, Shuh-Ji Kao
Coral reefs are known for being highly productive ecosystems in oligotrophic oceans, which is commonly referred to as the Darwin’s Paradox. Nitrogen is an essential component of organisms, but it limits primary productivity in most euphotic ocean, including the coral reef system. Therefore, understanding nitrogen’s transfer and transformation within the coral holobiont is essential to comprehend the
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Pick-up of fluoroquinolones from the aqueous phase via magnetically propeled microrobots: kinetics, thermodynamics, and site energy distribution analysis Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-26 Yongzheng Tang, Wenpeng Jia, Mutai Bao, Shengyao Qiu, YongRui Pi, Chongfeng Liu, Jinchen Zhao
Removing fluoroquinolones (FQs) in marine culture tailwater is crucial for the coastal marine environment. The application of a bacteria-based microrobot for FQ removal was discussed. Norfloxacin (NOR) and levofloxacin (LEV) had static maximum adsorption capacities of 114.8 and 49.4 mg/g, respectively, by a magnetic microrobot. The experimental results of NOR adsorption by a magnetic microrobot were
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An iterative labeling method for annotating marine life imagery Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-26 Zhiyong Zhang, Pushyami Kaveti, Hanumant Singh, Abigail Powell, Erica Fruh, M. Elizabeth Clarke
This paper presents a labeling methodology for marine life data using a weakly supervised learning framework. The methodology iteratively trains a deep learning model using non-expert labels obtained from crowdsourcing. This approach enables us to converge on a labeled image dataset through multiple training and production loops that leverage crowdsourcing interfaces. We present our algorithm and its
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Inspiration of marine sponges to design a structure for managing the coastal hydrodynamics and protection: numerical study Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-26 Masoumeh Hashempour, Morteza Kolahdoozan
Climate changes and sediment discharge within the oceans trigger many problems, such as coastline erosion and coral reef extinction hazards. Therefore, it is crucial to control wave hydrodynamics in the desired manner to protect marine environments. To prevent the promotion of sedimentation, nature has its response. The tubular sponge is a marvelous animal. It has a perforated body and sucks nutrition
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The role of the marine research infrastructures in the European marine observation landscape: present and future perspectives Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-26 Juan José Dañobeitia, Sylvie Pouliquen, Nicolas Pade, Christos Arvanitidis, Richard Sanders, Adrian Stanica, Claire Gourcuff, George Petihakis, Valentina Tegas, Paolo Favali
The ocean regulates the exchange, storage of carbon dioxide, plays a key role in global control of Earth climate and life, absorbs most of the heat excess from greenhouse gas emissions and provides a remarkable number of resources for the human being. Most of the geo-hazards occur in oceanic areas. Thus, high-quality systematic observations are necessary tools for improving our understanding, and subsequent
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Investigating the impacts of biofouled marine plastic debris on the olfactory behaviour of juvenile yellowtail kingfish (Seriola lalandi) Mar. Pollut. Bull. (IF 7.001) Pub Date : 2023-05-25 Eleanor R.M. Kelly, José E. Trujillo, Alvin Setiawan, Steve Pether, David Burritt, Bridie J.M. Allan
Marine microplastics are rapidly colonised by a microbial community which form a biofilm unique from the surrounding seawater that often contains infochemical-producing species associated with food sources. Here, we investigated whether juvenile kingfish (Seriola lalandi) were more attracted to biofouled plastics compared to clean plastics. Plastics were exposed to unfiltered seawater for one month
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Controlling factor analysis of oceanic surface pCO2 in the South China Sea using a three-dimensional high-resolution biogeochemical model Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-25 Miaoyin Zhang, Xueming Zhu, Xuanliang Ji, Anmin Zhang, Jingjing Zheng
The oceanic surface pressure of CO2 (pCO2) is an essential parameter for understanding the global and regional carbon cycle and the oceanic carbon uptake capacity. We constructed a three-dimensional physical-biogeochemical model with a high resolution of 1/30° for the South China Sea (SCS) to compensate for the limited temporal coverage and limited spatial resolution of the observations and numerical
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Identification and characterization of circRNAs from different body color leopard coral grouper (Plectropomus leopardus) Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-25 Ruijuan Hao, Xiaowen Zhu, Changxu Tian, Yang Huang, Guangli Li, Chunhua Zhu
Circular RNAs (circRNAs) play key roles in several biological processes in animals and their regulatory mechanism in body color formation or pigmentation in fish remains unclear. Here, circRNAs from black and red individuals of Plectropomus leopardus were identified to clarify the mechanism of circRNAs and the competing endogenous RNA (ceRNA) network (circRNA-microRNA (miRNA)-messenger RNA (mRNA))
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Predicting the Loop Current dynamics combining altimetry and deep flow measurements through the Yucatan Channel Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-25 Gaston Manta, Giovanni Durante, Julio Candela, Uwe Send, Julio Sheinbaum, Matthias Lankhorst, Rémi Laxenaire
The Loop Current is the main mesoscale feature of the Gulf of Mexico oceanic circulation. With peak velocities above 1.5 m s–1, the Loop Current and its mesoscale eddies are of interest to fisheries, hurricane prediction and of special concern for the security of oil rig operations in the Gulf of Mexico, and therefore understanding their predictability is not only of scientific interest but also a
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First successful production of adult corals derived from cryopreserved larvae Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-25 Arah Narida, Sujune Tsai, Wen-Chung Hsieh, Zhi-Hong Wen, Li-Hsueh Wang, Cheng-Liang Huang, Chiahsin Lin
Coral reefs worldwide are declining due to increasing concentrations of greenhouse gases, which, combined with local anthropogenic pressure, are exacerbating unprecedented mass coral bleaching. For corals to survive, restoring coral reefs through cryopreservation is crucial. The aim of this study was to vitrify and laser-warm Stylophora pistillata planulae to allow for feasible settlement, post-settlement
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Sea level variation in the Arctic Ocean since 1979 based on ORAS5 data Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-25 Ying Jin, Meixiang Chen, Han Yan, Tao Wang, Jie Yang
The Arctic is currently experiencing unprecedented changes across all components of the climate system, primarily driven by global warming. As an important indicator of climate change in the Arctic, sea level reflects variations in both the atmosphere and ocean. This paper analyzes the sea level variation of the Arctic Ocean over the past four decades using ORAS5 data, which is the product of the latest
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Testing indicators for trend assessment of range and habitat of low-density cetacean species in the Mediterranean Sea Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-25 Antonella Arcangeli, Fabrizio Atzori, Marta Azzolin, Lucy Babey, Ilaria Campana, Lara Carosso, Roberto Crosti, Odei Garcia-Garin, Martina Gregorietti, Arianna Orasi, Alessia Scuderi, Paola Tepsich, Morgana Vighi, Léa David
IntroductionConservation of cetaceans is challenging due to their large-range, highly-dynamic nature. The EU Habitats Directive (HD) reports 78% of species in ‘unknown’ conservation status, and information on low-density/elusive species such G.griseus, G.melas, Z.cavirostris is the most scattered.MethodsThe FLT-Net programme has regularly collected year-round data along trans-border fixed-transects
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Reduced survival of Steller sea lions in the Gulf of Alaska following marine heatwave Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-25 Kelly K. Hastings, Thomas S. Gelatt, John M. Maniscalco, Lauri A. Jemison, Rod Towell, Grey W. Pendleton, Devin S. Johnson
The North Pacific marine heatwave of 2014–2016 (PMH), one of the most geographically-extensive and severe marine heatwaves on record, resulted in widespread and persistent perturbation of the Gulf of Alaska and California Current ecosystems. Negative effects of the PMH on marine mammals have been observed, but are not yet well understood. The endangered Steller sea lion Eumetopias jubatus is an important
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An advanced towed CTD chain for physical-biological high resolution in situ upper ocean measurements Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-25 Thomas Kock, Burkard Baschek, Florian Wobbe, Martina Heineke, Rolf Riethmueller, Stephan C. Deschner, Gerd Seidel, Paulo H. R. Calil
Submesoscale eddies, fronts, and filaments are ubiquitous in the upper ocean and play an important role in biogeochemical and mixing processes as well as in the energy budget. To capture the high spatial variability of submesoscale processes, it is desirable to simultaneously resolve the vertical and horizontal gradients of hydrographic properties on scales of 10 m to 10 km. We present a revised towed
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Analysis of mooring-observed bottom current on the northern continental shelf of the South China Sea Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-25 Liang Chen, Xuejun Xiong, Quanan Zheng, Lintai Rong, Yingjie Wang, Qinglong Gong
The bottom current is an important component of the three-dimensional ocean circulation, which is of significance for the safeties of ocean bottom engineering and facilities, the research on sediment and pollutant transports, and the ecological environment. Due to the lack of observation data, research on the bottom current in the South China Sea (SCS) has been limited. This study systematically analyzes
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Assignment of tracks from tagged Atlantic bluefin tuna Thunnus thynnus to potential stocks using behavioural differences and habitat partitioning Front. Marine Sci. (IF 5.247) Pub Date : 2023-05-25 Simon Dedman, Emilius A. Aalto, Michael J. W. Stokesbury, Robert J. Schallert, Michael R. Castleton, Barbara A. Block
IntroductionAtlantic bluefin tuna (ABT) are large, migratory pelagic predators of high economic importance. ABT are currently managed as two independent stocks assigned to discrete spawning areas (Gulf of Mexico, and Mediterranean); however, stock overlap outside spawning areas makes accurate assignment of catch to stock-of-origin difficult.MethodsWithin this two-stock paradigm, we characterised stock-specific
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Gateway to the Arctic: Defining the eastern channel of the Bering Strait Prog. Oceanogr. (IF 4.416) Pub Date : 2023-05-24 Mark Zimmermann, Rebecca A. Woodgate, Megan M. Prescott
The Bering Strait is the sole gateway and an oceanographic bottleneck for the seasonally warm and comparatively fresh and nutrient-rich Pacific waters to flow into the Arctic, melting ice, lowering salinity, and feeding bird, mammal, and fish populations. The Diomede Islands split this small strait into two main channels, both with northward flow (in the annual mean). The eastern channel, in U.S. waters
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Lagrangian Coherent Structures in the Mediterranean Sea: Seasonality and Basin Regimes Prog. Oceanogr. (IF 4.416) Pub Date : 2023-05-24 Dimitrios Antivachis, Vassilios Vervatis, Sarantis Sofianos
The dynamics of fluid flows give rise to robust, persistent circulation features that underpin the flow and exert strong control over the advection of water masses, either enhancing it or supressing it, collectively known as lagrangian coherent structures. Lagrangian approaches and metrics have been shown to be better suited than eulerian ones at locating and delineating such structures and capturing
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Numerical Investigation on the Generation and Evolution of Nonlinear Internal Waves in the Southern Strait of Georgia Prog. Oceanogr. (IF 4.416) Pub Date : 2023-05-23 Yankun Gong, Lan Li, Rich Pawlowicz, Shuqun Cai
The generation and subsequent evolution of nonlinear internal waves (NLIWs) in the Strait of Georgia (British Columbia, Canada) is investigated with both remote sensing images and a three-dimensional regional non-hydrostatic numerical simulation. Many satellite images depict clear snapshots of two successive NLIWs propagating northward about 1 hr or 4 km apart during the flood tides. In the model results
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Emerging studies on oil pollution biomonitoring: A systematic review Mar. Pollut. Bull. (IF 7.001) Pub Date : 2023-05-24 Nícollas Menezes Ferreira, Ricardo Coutinho, Louisi Souza de Oliveira
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Fishing for litter for the reduction of marine plastic debris: What benefits and costs do Italians perceive? Mar. Pollut. Bull. (IF 7.001) Pub Date : 2023-05-24 M.B. Forleo, L. Romagnoli
As marine plastic litter (MPL) accumulates in the ocean, the need for remediation solutions, such as fishing for litter (FFL) schemes, is very crucial. In order to support the implementation of FFL schemes, the opinion of some Italians were sampled. The present study investigates Italians' opinions about the contribution of FFL in reducing MPL, and the perceived benefits and costs of the scheme. Descriptive
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Behavioral and physiological effects of ocean acidification and warming on larvae of a continental shelf bivalve Mar. Pollut. Bull. (IF 7.001) Pub Date : 2023-05-24 Raymond Czaja, Robert Holmberg, Emmanuelle Pales Espinosa, Daniel Hennen, Robert Cerrato, Kamazima Lwiza, Jennifer O'Dwyer, Brian Beal, Kassandra Root, Hannah Zuklie, Bassem Allam
The negative impacts of ocean warming and acidification on bivalve fisheries are well documented but few studies investigate parameters relevant to energy budgets and larval dispersal. This study used laboratory experiments to assess developmental, physiological and behavioral responses to projected climate change scenarios using larval Atlantic surfclams Spisula solidissima solidissima, found in northwest
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Bioremediation of PAEs-contaminated saline soil: The application of a marine bacterial strain isolated from mangrove sediment Mar. Pollut. Bull. (IF 7.001) Pub Date : 2023-05-24 Lei Ren, Liyun Weng, Danni Chen, Hanqiao Hu, Yang Jia, John L. Zhou
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Phytoplankton dynamics in the Mar Menor, a Mediterranean coastal lagoon strongly impacted by eutrophication Mar. Pollut. Bull. (IF 7.001) Pub Date : 2023-05-24 Sophia Ouaissa, Francisco Gómez-Jakobsen, Lidia Yebra, Isabel Ferrera, Enrique Moreno-Ostos, María Dolores Belando, Juan M. Ruiz, Jesús M. Mercado
The Mar Menor hypersaline coastal lagoon has suffered serious degradation in the last three decades attributable to nutrient pollution. In 2015, the lagoon experienced an intensive bloom of cyanobacteria that triggered a drastic change of its ecosystem. Our analyses indicate that phytoplankton in 2016–2021 did not present a seasonal variability pattern; the community was mainly dominated by diatoms
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Microplastic occurrence and phthalate ester levels in neuston samples and skin biopsies of filter-feeding megafauna from La Paz Bay (Mexico) Mar. Pollut. Bull. (IF 7.001) Pub Date : 2023-05-24 Matteo Galli, Tabata Olavarrieta Garcia, Matteo Baini, Jorge Urbán R, Deni Ramírez-Macías, Lorena Viloria-Gómora, Cristina Panti, Tania Martellini, Alessandra Cincinelli, Maria Cristina Fossi
The impacts of microplastics on filter feeders megafauna have recently received increased attention. These organisms are potentially exposed to plastic ingestion and the release of added/sorbed contaminants during feeding activities. An assessment of microplastic abundance and the chemical impact of Phthalates esters (PAEs) were performed in neustonic samples and skin biopsies of Balaenoptera physalus
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PFAS surveillance in abiotic matrices within vital aquatic habitats throughout Florida Mar. Pollut. Bull. (IF 7.001) Pub Date : 2023-05-24 Emily K. Griffin, Lauren M. Hall, Melynda A. Brown, Arielle Taylor-Manges, Trisha Green, Katherine Suchanec, Bradley T. Furman, Victoria M. Congdon, Sara S. Wilson, Todd Z. Osborne, Shawn Martin, Emma A. Schultz, Dylan T. Lukacsa, Justin A. Greenberg, John A. Bowden
Per- and polyfluoroalkyl substances (PFAS) are a group of manufactured chemicals that are resistant to degradation and thus persistent in the environment. The presence, uptake, and accumulation of PFAS is dependent upon the physiochemical properties of the PFAS and matrix, as well as the environmental conditions since the time of release. The objective of this study was to measure the extent of PFAS
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Concentration of polycyclic aromatic hydrocarbons (PAHs) and histological changes in Anomalocardia brasiliana and Crassostrea rhizophorae from Pernambuco, Brazil after the 2019 oil spill Mar. Pollut. Bull. (IF 7.001) Pub Date : 2023-05-24 Gisely Karla de Almeida Costa, Scarlatt Paloma Alves da Silva, Maria Raissa Coelho Marchetti Trindade, Fernando Leandro dos Santos, Renato S. Carreira, Carlos G. Massone, Otoniel D. Sant'Ana, Suzianny Maria Bezerra Cabral da Silva
The present study aimed to analyze the concentrations of polycyclic aromatic hydrocarbons (PAHs) in populations of the shellfish Anomalocardia brasiliana and oysters Crassostrea rhizophorae three years after the 2019 oil spill, as well as evaluate histopathological changes on the gill tissues of the bivalves. Individuals of both species were sampled at points along the northern and southern coast of