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Putative role of corazonin in the ovarian development of the swimming crab Portunus trituberculatus Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-15 Shisheng Tu, Fuqiang Ge, Yaoyao Han, Mengen Wang, Xi Xie, Dongfa Zhu
Corazonin (Crz) is a neuropeptide that widely distributed in insects and crustaceans. The Crz is proposed to have pleiotropic functions in insects, but its physiological roles in crustaceans are poorly understood. In the present study, Crz and its putative receptor (CrzR) were identified from the swimming crab, Portunus trituberculatus, and their interaction was validated using the Dual-Luciferase
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Discovery of a hidden form of neuropeptide F and its presence throughout the CNS–gut axis in the mud crab, Scylla olivacea Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-15 Thanapong Kruangkum, Supawadee Duangprom, Sineenart Songkoomkrong, Charoonroj Chotwiwatthanakun, Rapeepun Vanichviriyakit, Prasert Sobhon, Napamanee Kornthong
The mud crab Scylla olivacea (Scyol) is an economically crucial crustacean species in Thailand, due to its high market demand and nutritional value. The neuropeptide F (NPF) has been implicated in the coordinated regulation of feeding and metabolism in invertebrates. While various isoforms of neuropeptide F (NPF) have been previously explored in the mud crab, some knowledge gaps in relation to the
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Growth as a function of sea ice cover, light and temperature in the arctic/subarctic coralline C. compactum: A year-long in situ experiment in the high arctic Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-15 Jessica Gould, Jochen Halfar, Walter Adey, Justin B. Ries
Long-term, high-resolution measurements of environmental variability are sparse in the High Arctic. In the absence of such data, we turn to proxies recorded in the layered skeletons of the long-lived crustose coralline algae Clathromorphum compactum. Annual growth banding in this alga is dependent on several factors that include temperature, light availability, nutrients, salinity, and calcium carbonate
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The first evidence of microplastic presence in pumice stone along the coast of Thailand: A preliminary study Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-15 Siriporn Pradit, Ratchanee Puttapreecha, Prakrit Noppradit, Anukul Buranapratheprat, Penjai Sompongchaiyakul
In February and March 2022, a large amount of pumice stone appeared along the shoreline of Thailand. Pumice is a type of extrusive volcanic rock, and since there are no volcanoes in the Gulf of Thailand, an interesting question was where the pumice stones originated from. Another question was whether the pumice could be a vehicle for microplastics (MPs) which could then journey across the ocean until
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Long-term changes in zooplankton in the Changjiang estuary from the 1960s to 2020 Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-15 Ping Du, Wen-Jian Ye, Bang-Ping Deng, Ming Mao, Yuan-Li Zhu, Fang-Ping Cheng, Zhi-Bing Jiang, Lu Shou, Quan-Zhen Chen
The Changjiang estuary (CJE) is a large estuary that is affected by multiple anthropogenic stressors and climate change. The long-term trend of zooplankton in the CJE is an important indicator of the ecological response to stressors. We applied the Mann–Kendall trend analysis and Pettitt test to detect the trend and breakpoints of the biomass of the large mesozooplankton (LMZ; 505–20 000 μm) in four
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Probiotic properties of Bacillus strains isolated from the gastrointestinal tract against pathogenic Vibriosis Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-15 Mouna Jlidi, Ismahen Akremi, Adel Haj Ibrahim, Wided Brabra, Manel Ben Ali, Mamdouh Ben Ali
Vibriosis is one of the major diseases leading to massive fish mortality. Probiotics may provide a potential alternative method to protect fish from pathogens and to promote a balanced environment minimizing the use of antibiotics and chemotherapy. The aims of this study were to (i) isolate and purify marine spore-former strains from Sardine and shrimp intestine, (ii) screen for bacteria with potential
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Underestimation of biogenic silica sinking flux due to dissolution in sediment traps: A case study in the South China Sea Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-12 Wen Liang, Lihua Ran, Zhi Yang, Martin G. Wiesner, Yuzhao Liang, Lin Sun, Jianfang Chen
The dissolved silicate concentrations in the supernatant of sediment trap sampling bottles retrieved from deep water (1000-3000 m) at four stations in the South China Sea (SCS) were measured to calculate the underestimated flux of biogenic silica (bSi) in sinking particles due to bSi dissolution. High dissolved silicate concentrations in the supernatant, ranging from 122.6 to 1365.8 μmol/L, indicated
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Being ERC in marine science: Results of a survey among early-career marine scientists and conservationists Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-12 Anna N. Osiecka, Aleksandra Wróbel, Ida-Wenona Hendricks, Katarzyna Osiecka-Brzeska
Ocean research and conservation are still largely exclusive fields, with ongoing issues of racial, gender, class, and geographic underrepresentation. To improve accessibility and retention within these fields, we need to create equitable, just, and welcoming study and work environments. It is therefore crucial to listen to the voices of students and early career ocean professionals (ECOP). We conducted
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Microbial community characteristics of the intestine and gills of medium-form populations of Sthenoteuthis oualaniensis in the South China Sea Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-12 Xiaojuan Hu, Haochang Su, Peng Zhang, Zuozhi Chen, Yu Xu, Wujie Xu, Jie Li, Guoliang Wen, Yucheng Cao
Sthenoteuthis oualaniensis (purpleback squid) is an excellent biological resource in the South China Sea. However, the microbiological characteristics of this South China Sea squid, especially those of the medium-form of different sexes and gonadal maturities, are poorly understood. In this study, the characteristics of the bacterial community in the intestinal and gill tissues of female and male S
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Ecological risk assessment of metallic nanoparticles on the marine environments: Species sensitivity distributions analysis Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-12 Sulan Feng, Lin Zhu, Xinguo Zhao, Qi Sui, Xuemei Sun, Bijuan Chen, Keming Qu, Bin Xia
Metallic nanoparticles (NPs) are increasingly being used and inevitably entering the marine environment. Therefore, the adverse effects of NPs on individual marine species have attracted increasing attentions. However, to date, the ecological risks of NPs on the marine ecosystem remain poorly understood. In this study, species sensitivity distributions (SSDs) were constructed for Ag, ZnO, CuO, and
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Proposed improvement of coastal habitat resilience: The case study of Pantano forest of Policoro in southern Italy Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-12 Domenica Mirauda, Rocco De Donato, Giuseppe Santandrea
In the last decades, climate change and the rapid urbanization due to the development of the coastal economy have led to biodiversity loss and the fragmentation of habitat in many coastal zones. The presence of protected areas cannot prevent the progress of land degradation. However, these areas are very important because they provide significant ecosystem services and affect local tourism. With regard
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Archives of short-term fluid flow dynamics and possible influence of human activities at methane seeps: Evidence from high-resolution element geochemistry of chemosynthetic bivalve shells Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-12 Xudong Wang, Danling Fan, Steffen Kiel, Shanggui Gong, Qiangyong Liang, Jun Tao, Duofu Chen, Dong Feng
The natural dynamics of fluid flow at methane seeps and increasingly human activities influence the biogeochemistry of the microenvironment and further determine the activity of the chemosynthetic communities within these ecosystems. However, ways to reconstruct short-term fluid flow dynamics and to decipher the influence of scientific exploration at seeps are limited. In this study, we present high-resolution
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Interactive effects of fishing effort reduction and climate change in a central Mediterranean fishing area: Insights from bio-economic indices derived from a dynamic food-web model Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-12 Davide Agnetta, Fabio Badalamenti, Francesco Colloca, Gianpiero Cossarini, Fabio Fiorentino, Germana Garofalo, Bernardo Patti, Carlo Pipitone, Tommaso Russo, Cosimo Solidoro, Simone Libralato
Disentangling the effects of mixed fisheries and climate change across entire food-webs requires a description of ecosystems using tools that can quantify interactive effects as well as bio-economic aspects. A calibrated dynamic model for the Sicily Channel food web, made up of 72 functional groups and including 13 fleet segments, was developed. A temporal simulation until 2050 was conducted to evaluate
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Effect of dietary soybean meal on growth performance, apparent digestibility, intestinal digestive enzyme activity, and muscle growth–related gene expression of Litopenaeus vannamei Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-12 Kai Peng, Xiaoying Chen, Huijie Lu, Jichen Zhao, Yihong Chen, Chaozheng Li, Huo Li, Wen Huang
Soybean meal is one of the major components of aquatic animal diets, whereas little information is available about the evaluation of soybean meal growth suppression mode of action. A 42-day feeding trial was performed to assess the effects of dietary soybean meal on growth performance, apparent digestibility, intestinal digestive enzyme activity, and muscle growth–related gene expression of Litopenaeus
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Modelling the influence of coral-reef-derived dimethylsulfide on the atmosphere of the Great Barrier Reef, Australia Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-12 Rebecca L. Jackson, Matthew T. Woodhouse, Albert J. Gabric, Roger A. Cropp, Hilton B. Swan, Elisabeth S. M. Deschaseaux, Haydn Trounce
Marine dimethylsulfide (DMS) is an important source of natural sulfur to the atmosphere, with potential implications for the Earth’s radiative balance. Coral reefs are important regional sources of DMS, yet their contribution is not accounted for in global DMS climatologies or in model simulations. This study accounts for coral-reef-derived DMS and investigates its influence on the atmosphere of the
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Satellite assessment of coastal plume variability and its relation to environmental variables in the Sofala Bank Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-12 Helder Arlindo Machaieie, Fialho Paloge Juma Nehama, Cleverson Guizan Silva, Eduardo Negri de Oliveira
Monthly composites of remote sensing reflectance at 555 nm wavelength (Rrs555) from ocean color imagery of the MODIS sensor onboard the Aqua platform were used to characterize the spatial and temporal variability of coastal plume in the Sofala Bank and its relation to river discharge, local rainfall, and wind speed. To achieve the objective, maps of monthly composites of Rrs555 over the Sofala Bank
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Women and adaptive capacity to climate change in East African seascapes – Zanzibar as an example Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-12 Maricela de la Torre-Castro, Lars Lindström, Narriman S. Jiddawi, Felicity Pike, Astrid Max
As the climate crisis persists, there is a crucial need to increase knowledge on adaptive capacity and the underlying factors building it. This is particularly important for disadvantaged groups, such as coastal women in East Africa. Women’s livelihoods in these seascapes are and will be more severely affected by climate change and the capacity of East African states to deal with these challenges is
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‘Out of sight, out of mind’ - towards a greater acknowledgment of submerged prehistoric resources in Australian science-policy as part of a common heritage Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-12 Ingrid Ward, Michael Elliott, David Guilfoyle
There is growing awareness of the need for greater acknowledgement of underwater prehistoric cultural resources as part of management and regulation of the seabed around many maritime countries, especially those with large indigenous populations and history such as Australia. Prehistoric cultural places and landscapes inundated by Post-glacial sea-level rise on Australia’s continental shelf remain
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Tolerant but facing increased competition: Arctic zooplankton versus Atlantic invaders in a warming ocean Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-12 Patricia Kaiser, Wilhelm Hagen, Maya Bode-Dalby, Holger Auel
The Arctic Ocean is rapidly changing. Air temperature is rising two to four times faster in the Arctic than the global average, with dramatic consequences for the ecosystems. Polar zooplankton species have to cope with those increasing temperatures, whilst simultaneously facing increasing competition by boreal-Atlantic sister species advected into the Arctic Ocean via a stronger Atlantic inflow. To
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A Multivariable Empirical Algorithm for Estimating Particulate Organic Carbon Concentration in Marine Environments From Optical Backscattering and Chlorophyll-a Measurements Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-12 Daniel Koestner, Dariusz Stramski, Rick A. Reynolds
Accurate estimates of the oceanic particulate organic carbon concentration (POC) from optical measurements have remained challenging because interactions between light and natural assemblages of marine particles are complex, depending on particle concentration, composition, and size distribution. In particular, the applicability of a single relationship between POC and the spectral particulate backscattering
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Win some, lose some: The ecophysiology of Porites astreoides as a key coral species to Caribbean reefs Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-16 Lais F.O. Lima, Hayden Bursch, Elizabeth A. Dinsdale
Caribbean reefs have undergone large-scale losses in coral cover in past decades, sparking a search for species that are resilient under stress. Porites astreoides has been considered a “winner” and a key player in sustaining coral cover in the Caribbean as more sensitive species struggle. However, P. astreoides has recently declined in abundance, raising concern about its status as a winner. Here
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Mesoscale eddy effects on sea-air CO2 fluxes in the northern Philippine Sea Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Dongseon Kim, Seon-Eun Lee, Sosul Cho, Dong-Jin Kang, Geun-Ha Park, Sok Kuh Kang
To determine the effects of mesoscale eddies on sea-air CO2 flux, we investigated the surface fugacity of CO2 (surface fCO2) distribution in the northern Philippine Sea, where mesoscale eddies are common. Surface fCO2 showed large spatial variations, such that values were high in the non-eddy and cyclonic eddy regions, while they were low within the anticyclonic eddy. The maximum fCO2 was observed
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Effects of carbonate alkalinity on branchial gene expression in the large-scale loach (Paramisgurnus dabryanus) Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Mei Huang, Meng-Xiao Wu, Lin-Jiang Zhang, Di Mi, Yun-Long Zhang
Elucidating the mechanisms of alkaline tolerance in freshwater teleosts will help in the development of commercial saline-alkaline aquaculture. The large-scale loach (Paramisgurnus dabryanus) is a viable species for such aquaculture, but the mechanisms of its tolerance of alkaline water are unclear. Large-scale loach was exposed to 40, 50, and 60 mmol L-1 NaHCO3 for 12, 48, and 96 h to evaluate the
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New approach for designing an underwater free-space optical communication system Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Yanhu Chen, Luning Zhang, Yucheng Ling
Ocean observation system that involves multiple underwater vehicles and seafloor nodes plays an important role in better learning the ocean, where underwater wireless communication is mandatory for massive data interaction. Optical communication that has wide bandwidth and comprehensive working distance is the preferred method compared to acoustic and other methods. However, the presence of directionality
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Hot and cold marine extreme events in the Mediterranean over the period 1982-2021 Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Amelie Simon, Sandra M. Plecha, Ana Russo, Ana Teles-Machado, Markus G. Donat, Pierre-Amael Auger, Ricardo M. Trigo
Marine temperature extremes are anomalous ocean temperature events, often persisting over several weeks or longer, with potential impacts on physical and ecological processes that often encompass socio-economic implications. In recent years, a considerable effort has been directed at the development of metrics allowing an objective characterization of both marine heatwaves (MHWs) and marine cold spells
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Climate-driven changes to taste and aroma determining metabolites in an economically valuable portunid (Portunus armatus) have implications for future harvesting Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Curtis Champion, Damian Frank, Matthew C. Taylor, Kornelia Kaczmarska, Udayasika Piyasiri, Matt K. Broadhurst, Tanika C. Shalders, Melinda A. Coleman
The effects of climate change on the distribution and biology of fisheries species have received substantial attention, but quantitative assessments of changes to taste and aroma determining compounds remain limited—despite sensory quality being a key driver of demand for most harvested species. Utilising the economically important blue swimmer crab (Portunus armatus), we tested the effects of temperature
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Plastic additive di(2-ethylhexyl)phthalate (DEHP) causes cell death and micronucleus induction on a bottlenose dolphin’s (Tursiops truncatus) in vitro-exposed skin cell line Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Giada Giovani, Silvia Filippi, Chiara Molino, Antonella Peruffo, Cinzia Centelleghe, Roberta Meschini, Dario Angeletti
Marine plastic pollution is one of the most concerning worldwide environmental issues, and research is day by day demonstrating its adverse effects on marine ecosystems. Nevertheless, little is still known about the toxic potential on marine fauna of chemical additives released by plastic debris. Here we investigated the cyto- and genotoxicity of the most used plasticizer in plastic production, di
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Dispersion of subsurface lagrangian drifters in the northeastern Gulf of Mexico Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Cathrine Hancock, Kevin Speer, Joao Marcos Azevedo Correia de Souza, Steven L. Morey
The dispersion of subsurface Lagrangian floats by eddies was observed directly in DeSoto Canyon, located in the northeastern Gulf of Mexico. Key elements of dispersion include the capture and release of floats by variations in eddy structure and intensity. Two separate eddy events were revealed through 60-day trajectories from five subsurface drifters deployed at 400 m depth in DeSoto Canyon. A changing
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New insights into the archives of redox conditions in seep carbonates from the northern South China Sea Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Qianyong Liang, Huiwen Huang, Yuedong Sun, Shanggui Gong, Xudong Wang, Xi Xiao, Yifei Dong, Junxi Feng, Dong Feng
Modern cold seeps are of fluctuant flux, which could result in variabilities of geochemical archives through intensively influencing the redox condition in pore fluids. However, the geochemical archives are not fully understood when the redox condition changes. Here, tubular carbonates from the Shenhu Sea Area were used to reconstruct the formation environment and redox conditions. The moderately negative
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Transgenerational effects and temperature variation alter life history traits of the moon jellyfish Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Xupeng Chi, Fang Zhang, Song Sun
Understanding the life history strategy of organisms is key to predicting their population dynamics. The population of scyphozoan jellyfish has displayed an increasing trend in recent decades, yet its life history strategy is not fully understood. To interpret the reproduction strategy of scyphozoan jellyfish from an evolutionary ecology perspective, we dissected 10 asexual generations of Aurelia coerulea
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Climate drivers of Southern Ocean phytoplankton community composition and potential impacts on higher trophic levels Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Kristen M. Krumhardt, Matthew C. Long, Zephyr T. Sylvester, Colleen M. Petrik
Southern Ocean phytoplankton production supports rich Antarctic marine ecosystems comprising copepods, krill, fish, seals, penguins, and whales. Anthropogenic climate change, however, is likely to drive rearrangements in phytoplankton community composition with potential ramifications for the whole ecosystem. In general, phytoplankton communities dominated by large phytoplankton, i.e., diatoms, yield
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Staying close to home: Marine habitat selection by foraging yellow-eyed penguins using spatial distribution models Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Rachel P. Hickcox, Thomas Mattern, Mariano Rodríguez-Recio, Melanie J. Young, Yolanda van Heezik, Philip J. Seddon
Endangered yellow-eyed penguins (Megadyptes antipodes) are central-place, benthic-diving foragers that search for prey in the productive marine areas off the coast of the South Island, New Zealand. Like other seabirds, they target specific, reliable areas of high prey abundance, which are often associated with oceanographic characteristics such as bathymetry, seafloor sediment type, and sea surface
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Using citizen science to estimate surficial soil Blue Carbon stocks in Great British saltmarshes Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Craig Smeaton, Annette Burden, Paulina Ruranska, Cai J. T. Ladd, Angus Garbutt, Laurence Jones, Lucy McMahon, Lucy C. Miller, Martin W. Skov, William E. N. Austin
A new saltmarsh soil dataset comprising of geochemical and physical property data from 752 soil samples collected through a sampling program supported by citizen scientists has been brought together with existing data to make the first national estimates of the surficial (top 10 cm) soil OC stock for Great British (GB) saltmarshes. To allow the inclusion of secondary data in the soil stock estimate
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Quantifying baseline costs and cataloging potential optimization strategies for kelp aquaculture carbon dioxide removal Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Struan Coleman, Tobias Dewhurst, David W. Fredriksson, Adam T. St. Gelais, Kelly L. Cole, Michael MacNicoll, Eric Laufer, Damian C. Brady
To keep global surface warming below 1.5°C by 2100, the portfolio of cost-effective CDR technologies must expand. To evaluate the potential of macroalgae CDR, we developed a kelp aquaculture bio-techno-economic model in which large quantities of kelp would be farmed at an offshore site, transported to a deep water “sink site”, and then deposited below the sequestration horizon (1,000 m). We estimated
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Environment variables affect CPUE and spatial distribution of fishing grounds on the light falling gear fishery in the northwest Indian Ocean at different time scales Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Haibin Han, Chao Yang, Heng Zhang, Zhou Fang, Bohui Jiang, Bing Su, Jianghua Sui, Yunzhi Yan, Delong Xiang
To better develop and protect the pelagic fishery in the northwest Indian Ocean, China’s fishing enterprises have been producing pelagic fisheries in the said area for a long time. Based on the fishing log data of light falling gear in the northwest Indian Ocean from 2016 to 2020, this study analyzed the impact of different time scales on the catch rate and fishing ground center of gravity of light
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Interannual summer biodiversity changes in ichthyoplankton assemblages of the Strait of Sicily (Central Mediterranean) over the period 2001–2016 Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Bernardo Patti, Marco Torri, Angela Cuttitta
Interannual fluctuations in the structure and the composition of ichthyoplankton assemblages in the pelagic waters of the Strait of Sicily (SoS, Central Mediterranean) were investigated, trying to relate them to the observed variability in oceanographic conditions. Plankton data used in this study were from 16 summer surveys carried out in the SoS every year from 2001 to 2016, using oblique bongo plankton
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Influence of Indo-Pacific ocean currents on the distribution and demographic patterns of the brown seaweed Sargassum polycystum in tropical east Asia Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Yanshuo Liang, Shuangshuang Zhang, Changxiang Yan, Stefano G. A. Draisma, Attachai Kantachumpoo, Zhao Li, Yude Lin, Jiang Zhu, Jie Zhang, Delin Duan
Long-distance drifting of seaweeds driven by ocean currents is an ideal model for exploring population-level genetic connectivity and phylogeographic structure. In the Indo-Pacific convergence region, we integrated phylogeographic and ocean current data and Lagrangian particle simulations to explore how the ocean currents contributed to the biogeographical patterns and population genetic connectivity
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Seasonal mesozooplankton patterns and timing of life history events in high-arctic fjord environments Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Janne E. Søreide, Katarzyna Dmoch, Katarzyna Blachowiak-Samolyk, Emilia Trudnowska, Malin Daase
Seasonal patterns in mesozooplankton composition, vertical distribution, and timing of reproduction are challenging to study in the open sea due to ocean currents and mix of populations of different origins. Sill fjords, on the other hand, with restricted water exchange, are ideal locations for studying taxa- and community-specific adaptations to the prevailing environment. Here, we present re-occurring
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Membrane lipid sensitivity to ocean warming and acidification poses a severe threat to Arctic pteropods Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Silke Lischka, Michael J. Greenacre, Ulf Riebesell, Martin Graeve
Ocean warming and acidification will be most pronounced in the Arctic. Both phenomena severely threaten thecosome pteropods (holoplanktonic marine gastropods) by reducing their survival (warming) and causing the dissolution of their aragonitic shell (acidification). Lipids, particularly phospholipids, play a major role in veligers and juveniles of the polar thecosome pteropod Limacina helicina comprising
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Low-Cost, Deep-Sea Imaging and Analysis Tools for Deep-Sea Exploration: A Collaborative Design Study Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-11 Katherine L. C. Bell, Jennifer Szlosek Chow, Alexis Hope, Maud C. Quinzin, Kat A. Cantner, Diva J. Amon, Jessica E. Cramp, Randi D. Rotjan, Lehua Kamalu, Asha de Vos, Sheena Talma, Salome Buglass, Veta Wade, Zoleka Filander, Kaitlin Noyes, Miriam Lynch, Ashley Knight, Nuno Lourenço, Peter R. Girguis, João Borges de Sousa, Chris Blake, Brian R. C. Kennedy, Timothy J. Noyes, Craig R. McClain
A minuscule fraction of the deep sea has been scientifically explored and characterized due to several constraints, including expense, inefficiency, exclusion, and the resulting inequitable access to tools and resources around the world. To meet the demand for understanding the largest biosphere on our planet, we must accelerate the pace and broaden the scope of exploration by adding low-cost, scalable
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Automated detection of coastal upwelling in the Western Indian Ocean: Towards an operational “Upwelling Watch” system Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-09 Matthew Lee Hammond, Fatma Jebri, Meric Srokosz, Ekaterina Popova
Coastal upwelling is an oceanographic process that brings cold, nutrient-rich waters to the ocean surface from depth. These nutrient-rich waters help drive primary productivity which forms the foundation of ecological systems and the fisheries dependent on them. Although coastal upwelling systems of the Western Indian Ocean (WIO) are seasonal (i.e., only present for part of the year) with large variability
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Effect of diet on molecular relationships between Atlantic cod larval muscle growth dynamics, metabolism, and antioxidant defense system Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-09 Tu A. Vo, Trina F. Galloway, Augustine Arukwe, Rolf B. Edvardsen, Kristin Hamre, Ørjan Karlsen, Ivar Rønnestad, Elin Kjørsvik
We studied molecular effects (RNAseq and qPCR) of first feeding prey types (copepods or rotifers/Artemia) on skeletal muscle myogenesis and growth dynamics (proliferation, differentiation), metabolism (glycolysis, gluconeogenesis, oxidative phosphorylation), and antioxidant defense system (production/regulation of reactive oxygen species (ROS) in cod (Gadus morhua) larval skeletal muscle. Larval somatic
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Numerical study of storm surge-induced coastal inundation in Laizhou Bay, China Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-09 Zhao Li, Shuiqing Li, Po Hu, Dongxue Mo, Jian Li, Mei Du, Jie Yan, Yijun Hou, Baoshu Yin
Storm surge inundation can induce great disasters in coastal regions, and Laizhou Bay (LZB), located in the Bohai Sea, is a bay that frequently experiences coastal storm flooding. In this study, we perform a numerical study of the effects of wind and waves on the storm surge-induced coastal inundation in the LZB using the coupled model ADCIRC+SWAN. Two historical typhoons (No. 9216 Typhoon Polly (TY9216)
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The Alboran Sea circulation and its biological response: A review Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-09 José C. Sánchez-Garrido, Irene Nadal
The oceanography of the Alboran Sea (AS) has been the subject of intensive research for decades. Chief among the reasons for this interest is the variety of physical processes taking place in the basin, spanning from coastal upwelling, dynamic of density fronts, internal waves, and strong meso- and submesoscale turbulence. Historical fieldwork and an increasing number of numerical studies in recent
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Echofilter: A Deep Learning Segmention Model Improves the Automation, Standardization, and Timeliness for Post-Processing Echosounder Data in Tidal Energy Streams Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-09 Scott C. Lowe, Louise P. McGarry, Jessica Douglas, Jason Newport, Sageev Oore, Christopher Whidden, Daniel J. Hasselman
Understanding the abundance and distribution of fish in tidal energy streams is important for assessing the risks presented by the introduction of tidal energy devices into the habitat. However, tidal current flows suitable for tidal energy development are often highly turbulent and entrain air into the water, complicating the interpretation of echosounder data. The portion of the water column contaminated
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Vegetation changes in Yellow River Delta wetlands from 2018 to 2020 using PIE-Engine and short time series Sentinel-2 images Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-10 Dong Chang, Zhiyong Wang, Xiaogang Ning, Zhenjin Li, Long Zhang, Xiaotong Liu
Vegetation is the functional subject in the wetland ecosystem and plays an irreplaceable role in biodiversity conservation. It is of great significance to monitor wetland vegetation for scientific assessment of the impact of vegetation on ecological environment and biodiversity. In this paper, a method for extracting wetland vegetation based on short time series Normalized Difference Vegetation Index
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Trend detection by innovative polygon trend analysis for winds and waves Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-10 Fatma Akçay, Bilal Bingölbali, Adem Akpınar, Murat Kankal
It is known that densely populated coastal areas may be adversely affected as a result of the climate change effects. In this respect, for coastal protection, utilization, and management it is critical to understand the changes in wind speed (WS) and significant wave height (SWH) in coastal areas. Innovative approaches, which are one of the trend analysis methods used as an effective way to examine
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Loliginid paralarvae from the Southeastern Gulf of Mexico: Abundance, distribution, and genetic structure Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-10 Paulina V. Guarneros-Narváez, Rossanna Rodríguez-Canul, Roxana De Silva-Dávila, Jesús Alejandro Zamora-Briseño, Monica Améndola-Pimenta, Alejandro José Souza, Uriel Ordoñez, Iván Velázquez-Abunader
Global commercial catches of squid have increased greatly in the last few years. However, approximately a quarter of the squid catches are still unidentified. In the southeastern Gulf of Mexico (SGoM), the squid catches are not recorded most of the time and are unidentified. This lack of knowledge limits the evaluation of the populations and prevents the establishment of conservation strategies. In
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Prototyping of a tethered undersea kite to harvest energy from low velocity currents Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-10 Leonard Günzel, Theresa Beer, Sjard Wucherpfennig, Jan Boelmann
The global energy consumption has been on the rise since the last industrial revolution and continues to be. So far the demand could be satisfied by a mixture of conventional and renewable energies. With the global effort to eliminate conventional energies to stop the anthropological climate change, the demand for reliable and predictable renewable energies is growing. Under these circumstances, more
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A new species of Phymatolithon Foslie, P. abuqirensis (Hapalidiaceae, Hapalidiales), from Mediterranean Egypt Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-10 Ronald P. III Kittle, Joseph L. Richards, Thomas Sauvage, Daniela Gabriel, William E. Schmidt, Suzanne Fredericq
Phymatolithon Foslie is one of the most studied and ecologically important genera of crustose coralline algae (CCA) due to their dominant abundance in various marine ecosystems worldwide. The taxonomy of the genus is complex and has been revised and updated many times based on morphological and molecular analyses. We report on a crustose coralline algal species collected in June 2011 via snorkeling
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Fluorescent signatures of autochthonous dissolved organic matter production in Siberian shelf seas Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-09 Anastasia N. Drozdova, Ivan N. Krylov, Andrey A. Nedospasov, Elena G. Arashkevich, Timur A. Labutin
The East Siberian Sea is an area of high biogeochemical activity caused by multiple factors, such as an influence of river runoff, Atlantic, and Pacific waters, formation and melting of sea ice, and internal circulation. Extensive amounts of carbon are accumulated in sub-sea permafrost within the Arctic shelf in East Siberia. Thawing permafrost and resulting microbial decomposition of frozen carbon
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Estimating the impacts of climate change on the habitat suitability of common minke whales integrating local adaptation Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-09 Bin Sun, Linlin Zhao, Fei Shao, Zhichuang Lu, Jiashen Tian, Changdong Liu
Climate change is exerting unprecedented effects on the habitats of marine mammals. Common minke whales (Balaenoptera acutorostrata) have suffered immense harm from commercial whaling, and the recovery of this species is likely threatened by climate change. To better manage and conserve this species, it is important to predict its current habitat distribution and the potential change under future climate
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YOLO-Rip: A modified lightweight network for Rip currents detection Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-09 Daoheng Zhu, Rui Qi, Pengpeng Hu, Qianxin Su, Xue Qin, Zhiqiang Li
Rip currents form on beaches worldwide and pose a potential safety hazard for beach visitors. Therefore, effectively identifying rip currents from beach scenes and providing real-time alerts to beach managers and beachgoers is crucial. In this study, the YOLO-Rip model was proposed to detect rip current targets based on current popular deep learning techniques. First, based on the characteristics of
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Complete and rapid regeneration of fragments from the upside-down jellyfish Cassiopea Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-09 Malte Ostendarp, Julia Plewka, Jenny Flathmann, Arjen Tilstra, Yusuf C. El-Khaled, Christian Wild
The upside-down jellyfish Cassiopea increasingly occurs in many (sub-) tropical coastal habitats such as mangrove forests, seagrass meadows, and coral reefs. Its mixotrophic lifestyle and ecophysiological plasticity as well as a high regenerative capacity may be reasons for its success. While the regeneration of umbrella tissue and body structures (i.e. rhopalia and oral arms) was already demonstrated
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Engineered nanoceria alleviates thermally induced oxidative stress in free-living Breviolum minutum (Symbiodiniaceae, formerly Clade B) Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-09 Liza M. Roger, Joseph A. Russo, Robert E. Jinkerson, Juan Pablo Giraldo, Nastassja A. Lewinski
The breakdown of symbiotic mutualism between cnidarian hosts and dinoflagellate algae partners (i.e., bleaching) has been linked to an immune-like response pathway brought on by a nitro-oxidative burst, a symptom of thermal stress. Stress induced by reactive oxygen species (ROS)/reactive nitrogen species is a problem common to aerobic systems. In this study, we tested the antioxidant effects of engineered
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Fates of petroleum during the deepwater horizon oil spill: A chemistry perspective Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-09 Edward B. Overton, Puspa L. Adhikari, Jagoš R. Radović, Uta Passow
We describe the initial bulk and compound specific composition of the liquid oil spilled during the Deepwater Horizon (DwH) disaster. The emphasis is on the target hydrocarbon compounds typically found in highest concentrations and on those of concern from a toxicological perspective (i.e., the target normal alkanes and isoprenoids, and PAHs on U.S. Environmental Protection Agency’s (EPA) priority
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Global Distribution of Zooplankton Biomass Estimated by In Situ Imaging and Machine Learning Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-09 Laetitia Drago, Thelma Panaïotis, Jean-Olivier Irisson, Marcel Babin, Tristan Biard, François Carlotti, Laurent Coppola, Lionel Guidi, Helena Hauss, Lee Karp-Boss, Fabien Lombard, Andrew M. P. McDonnell, Marc Picheral, Andreas Rogge, Anya M. Waite, Lars Stemmann, Rainer Kiko
Zooplankton plays a major role in ocean food webs and biogeochemical cycles, and provides major ecosystem services as a main driver of the biological carbon pump and in sustaining fish communities. Zooplankton is also sensitive to its environment and reacts to its changes. To better understand the importance of zooplankton, and to inform prognostic models that try to represent them, spatially-resolved
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Docosahexaenoic acid (DHA) production by Aurantiochytrium limacinum using cassava pulp hydrolysate as an alternative low-cost carbon source Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-08 Uyun Nurul Aini, Siriporn Lunprom, Alissara Reungsang, Apilak Salakkam
Cost of nutrients is one of the major contributors to the production cost of docosahexaenoic acid (DHA) by thraustochytrids, and this remains the main challenge for economical and sustainable production of DHA. In the present study, cassava pulp (CP) was investigated as an alternative low-cost carbon source for DHA production by Aurantiochytrium limacinum SR21. Cultivation conditions, i.e., salinity
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Modelling the influence of submesoscale processes on phytoplankton dynamics in the northern South China Sea Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-08 Peng Xiu, Lin Guo, Wentao Ma
Submesoscale processes in the ocean vary rapidly in both space and time, and are often difficult to capture by field observations. Their dynamical connection with marine biology remains largely unknown because of the intrinsic link between temporal and spatial variations. In May 2015, satellite chlorophyll data demonstrated high concentration patches in the edge region between mesoscale eddies, which
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Ovary transcriptomic analysis reveals regulation effects of dietary fish oil on hormone, lipid, and glucose metabolism in female adult spotted scat (Scatophagus argus) Front. Marine Sci. (IF 5.247) Pub Date : 2022-08-08 Tuo Wang, Zhi-Long Liu, Guang-Li Li, Umar Farouk Mustapha, Charles Brighton Ndandala, Hong-Juan Shi, Chun-Hua Zhu, Hua-Pu Chen, Yang Huang, Dong-Neng Jiang
In the aquaculture industry, fish oil is widely used as a nutritional supplement to promote the gonadal maturation of broodstocks, while the mechanism of fish oil on ovary development remain unclear. Herein, female adult spotted scat (Scatophagus argus) with most ovaries at phase II were fed with diets containing 8% soybean oil (SO) or 8% fish oil (FO) for 60 days. The final average fish body weight