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33 Results Found

  • Article
  • Open Access
10 Citations
3,357 Views
14 Pages

11 September 2021

In this study, total organic carbon (TOC), total nitrogen (TN), and stable carbon isotopes (δ13C) were measured in surface intertidal saltmarsh and bare tidal flat sediments along the Rudong coast. The distribution and sources of organic carbon were...

  • Article
  • Open Access
7 Citations
3,460 Views
20 Pages

Origin of the Particulate Organic Matter in a Monsoon-Controlled Bay in Southern China

  • Jiacheng Li,
  • Fajin Chen,
  • Shuwen Zhang,
  • Chao Huang,
  • Chunqing Chen,
  • Fengxia Zhou,
  • Junhui Wu,
  • Guangzhe Jin and
  • Qingmei Zhu

In this study, the isotopic composition (δ13C and δ15N), total organic carbon content, total nitrogen content, and C/N ratios of suspended particulate organic matter (POM) in Zhanjiang Bay, which is a semi-enclosed bay with concentrated artificial ac...

  • Article
  • Open Access
1 Citations
4,143 Views
23 Pages

25 September 2023

Cova de la Sarsa (València, Spain) is one of the most important Neolithic impressed ware culture archaeological sites in the Western Mediterranean. It has been widely referenced since it was excavated in the 1920s, due partly to the relatively...

  • Article
  • Open Access
12 Citations
3,265 Views
15 Pages

Variation in Foliar ẟ15N Reflects Anthropogenic Nitrogen Absorption Potential of Mangrove Forests

  • Ferdouse Zaman Tanu,
  • Yasuhiro Asakura,
  • Satoshi Takahashi,
  • Ko Hinokidani and
  • Yasuhiro Nakanishi

22 January 2020

Research Highlights: Mangrove forests are absorbing anthropogenically produced excess nitrogen under moderate to intensive human interaction in the study sites, further indicating the degree of deviation from the natural ecosystem condition. Backgrou...

  • Article
  • Open Access
8 Citations
5,944 Views
21 Pages

19 July 2020

Neuro–inflammation is known to be one of the pathogenesis for the degenerative central nervous system (CNS) disease. Recently various approaches for the treatment of brain diseases by controlling neuro-inflammation in the brain have been introd...

  • Article
  • Open Access
4 Citations
2,994 Views
19 Pages

Lagoon Biogeochemical Processing is Reflected in Spatial Patterns of Sediment Stable Isotopic Ratios

  • Elizabeth Burke Watson,
  • Alejandro Hinojosa-Corona,
  • Johannes R. Krause,
  • Juan Carlos Herguera,
  • Julianna McDonnell,
  • Karen Raquel Villegas Manríquez,
  • Michelle E. Gannon and
  • Andrew B. Gray

3 November 2020

The spatial analysis of biota, particulate organic matter, and sediments for stable isotopes of carbon (δ13C), nitrogen (δ15N), and sulfur (δ34S) have proved useful for identifying patterns in productivity, nutrient pollution, and r...

  • Article
  • Open Access
7 Citations
2,974 Views
14 Pages

17 February 2023

Carbon and nitrogen are among the most important biogenic elements in terrestrial ecosystems, and carbon and nitrogen stable isotopes (δ13C and δ15N) are often used to indicate the sources of carbon and nitrogen elements and turnover proc...

  • Article
  • Open Access
9 Citations
3,498 Views
15 Pages

Effects of Tissue Preservation on Carbon and Nitrogen Stable Isotope Signatures in Syngnathid Fishes and Prey

  • Miquel Planas,
  • Alex Paltrinieri,
  • Mario Davi Dias Carneiro and
  • Jorge Hernández-Urcera

4 December 2020

Isotopic stable analysis (SIA) is a powerful tool in the assessment of different types of ecological and physiological studies. For that, different preservation methods for sampled materials are commonly used prior to isotopic analysis. The effects o...

  • Article
  • Open Access
3 Citations
1,206 Views
19 Pages

Stable Isotopes Analysis of Bioremediating Organisms in an Innovative Integrated Multi-Trophic Aquaculture System

  • Jacopo Borghese,
  • Adriana Giangrande,
  • Daniele Arduini,
  • Lorenzo Doria,
  • Caterina Longo,
  • Lucia Rizzo,
  • Antonio Pennetta,
  • Giuseppe E. De Benedetto and
  • Sergio Rossi

12 December 2024

Integrated Multi-Trophic Aquaculture (IMTA) has been demonstrated to be a very useful tool to minimize the waste product production of fish monocultures whilst promoting biomass that can be used for different purposes. The stable isotope analysis (&d...

  • Feature Paper
  • Article
  • Open Access
6 Citations
1,981 Views
23 Pages

Maternal Effects and Trophodynamics Drive Interannual Larval Growth Variability of Atlantic Bluefin Tuna (Thunnus thynnus) from the Gulf of Mexico

  • José M. Quintanilla,
  • Ricardo Borrego-Santos,
  • Estrella Malca,
  • Rasmus Swalethorp,
  • Michael R. Landry,
  • Trika Gerard,
  • John Lamkin,
  • Alberto García and
  • Raúl Laiz-Carrión

28 April 2024

Two cohorts of Atlantic bluefin tuna (Thunnus thynnus) larvae were sampled in 2017 and 2018 during the peak of spawning in the Gulf of Mexico (GOM). We examined environmental variables, daily growth, otolith biometry and stable isotopes and found tha...

  • Communication
  • Open Access
5 Citations
2,271 Views
7 Pages

1 September 2023

Carbon stable isotopes (δ13C) are widely used in ecological studies to understand diet, food web dynamics, and movements of marine fishes. Still, δ13C is influenced by lipid content and often requires chemical extraction or mathematical c...

  • Article
  • Open Access
21 Citations
4,615 Views
26 Pages

Organic Carbon and Nitrogen Isoscapes of Reef Corals and Algal Symbionts: Relative Influences of Environmental Gradients and Heterotrophy

  • Takanori Fujii,
  • Yasuaki Tanaka,
  • Koh Maki,
  • Nobue Saotome,
  • Naoko Morimoto,
  • Atsushi Watanabe and
  • Toshihiro Miyajima

The elemental (C/N) and stable isotopic (δ13C, δ15N) compositions and compound-specific δ15N values of amino acids (δ15NAA) were evaluated for coral holobionts as diagnostic tools to detect spatiotemporal environmental heterog...

  • Article
  • Open Access
2,671 Views
11 Pages

20 March 2023

Formalin preservation affects the stable isotope composition of zooplankton samples, thus limiting the analysis of valuable collections covering large time intervals. Here, we compare different procedures for correcting the bias caused by formalin in...

  • Feature Paper
  • Article
  • Open Access
16 Citations
3,063 Views
15 Pages

26 August 2022

Eutrophication remediation is an ongoing priority for protecting aquatic ecosystems, especially in plateau lakes with fragile ecologies and special tectonic environments. However, current strategies to control the phosphorus (P) and nitrogen (N) leve...

  • Article
  • Open Access
3 Citations
3,396 Views
18 Pages

Arctic Nearshore Sediment Dynamics—An Example from Herschel Island—Qikiqtaruk, Canada

  • Boris Radosavljevic,
  • Hugues Lantuit,
  • Christian Knoblauch,
  • Nicole Couture,
  • Ulrike Herzschuh and
  • Michael Fritz

27 October 2022

Increasing arctic coastal erosion rates imply a greater release of sediments and organic matter into the coastal zone. With 213 sediment samples taken around Herschel Island—Qikiqtaruk, Canadian Beaufort Sea, we aimed to gain new insights on se...

  • Article
  • Open Access
4 Citations
3,588 Views
18 Pages

23 November 2020

Carbon and nitrogen contents and their isotopic components, and AMS (Accelerator Mass Spectrometry) radiocarbon dating ages, were measured for 57 coastal sediments from Weizhou Island to analyze the distribution of total inorganic carbon (TIC) and it...

  • Article
  • Open Access
20 Citations
7,440 Views
16 Pages

Assessing Soil Organic Carbon in Soils to Enhance and Track Future Carbon Stocks

  • Yun-Ya Yang,
  • Avi Goldsmith,
  • Ilana Herold,
  • Sebastian Lecha and
  • Gurpal S. Toor

5 August 2020

Soils represent the largest terrestrial sink of carbon (C) on Earth, yet the quantification of the amount of soil organic carbon (SOC) is challenging due to the spatial variability inherent in agricultural soils. Our objective was to use a grid sampl...

  • Article
  • Open Access
1 Citations
3,090 Views
12 Pages

The Feeding Behaviour of Gall Midge Larvae and Its Implications for Biocontrol of the Giant Reed: Insights from Stable Isotope Analysis

  • Giulio Careddu,
  • Marcovalerio Botti,
  • Massimo Cristofaro,
  • Simona Sporta Caputi,
  • Edoardo Calizza,
  • Loreto Rossi and
  • Maria Letizia Costantini

12 December 2022

The gall midge Lasioptera donacis, whose larval stage interferes with the reed’s leaf development, is a potential candidate agent for the biological control of Arundo donax. Reed infestation is always associated with the presence of a saprophyt...

  • Article
  • Open Access
1,578 Views
16 Pages

10 July 2023

The sedimentary laminae of Tamarix cones in arid regions are of great significance for dating and climatic reconstruction. Here, we present a multiproxy climatic record from the Tamarix cones in the southern margin of the Taklimakan Desert. Both the...

  • Article
  • Open Access
1,932 Views
15 Pages

Source, Distribution and Transformation of Organic Matter in a Subtropical Karst Reservoir

  • Jianhong Li,
  • Tao Zhang,
  • Junbing Pu,
  • Xiangling Tang,
  • Yincai Xie and
  • Qiong Xiao

13 September 2023

In order to improve the understanding of the global carbon cycle and the stability of karst carbon sinks, it is necessary to better understand the source, distribution and transformation characteristics of organic matter (OM) in aquatic ecosystems. H...

  • Article
  • Open Access
9 Citations
3,525 Views
21 Pages

3 August 2022

Marine picocyanobacteria belonging to the genus Synechococcus are one of the most abundant photosynthetic organisms on Earth. They are often exposed to large fluctuations in temperature and CO2 concentrations in the ocean, which are expected to furth...

  • Article
  • Open Access
9 Citations
3,606 Views
21 Pages

20 August 2020

The suspended particulate organic matter (SPOM) in transitional waters such as the Maryland Coastal Bays (MCBs) is derived from allochthonous and autochthonous sources. Little is known, however, about the contribution of terrestrially derived organic...

  • Article
  • Open Access
6 Citations
3,199 Views
20 Pages

Metal Binding and Sources of Humic Substances in Recent Sediments from the Cananéia-Iguape Estuarine-Lagoon Complex (South-Eastern Brazil)

  • Christian Millo,
  • Carlo Bravo,
  • Stefano Covelli,
  • Elena Pavoni,
  • Elisa Petranich,
  • Marco Contin,
  • Maria De Nobili,
  • Matteo Crosera,
  • Bruno Otero Sutti and
  • Camila das Mercês Silva
  • + 1 author

12 September 2021

The Cananéia-Iguape estuarine–lagoon complex (São Paulo state, Brazil) is a natural laboratory to study metal binding by humic substances (HS) in subtropical settings. This transitional environment is evolving into a freshwater environment due to wat...

  • Article
  • Open Access
1 Citations
1,723 Views
14 Pages

24 July 2024

We studied the dynamics of stable carbon (δ13C) and nitrogen (δ15N) isotopes in litter from Norway spruce (NSL) (Picea abies) and Scots pine (SPL) (Pinus silvestris) during in situ decomposition over a period of more than 4 years. Relativ...

  • Article
  • Open Access
8 Citations
4,704 Views
18 Pages

Assessing the Effect of Age and Geomorphic Setting on Organic Carbon Accumulation in High-Latitude Human-Planted Mangroves

  • Jianxiong Hu,
  • Pei Sun Loh,
  • Siriporn Pradit,
  • Thi Phuong Quynh Le,
  • Chantha Oeurng,
  • Che Abdul Rahim Mohamed,
  • Choon Weng Lee,
  • Xixi Lu,
  • Gusti Z. Anshari and
  • Selvaraj Kandasamy
  • + 5 authors

12 January 2022

Mangroves are highly productive blue carbon ecosystems that preserve high organic carbon concentrations in soils. In this study, particle size, bulk elemental composition and stable carbon isotope were determined for the sediment cores collected from...

  • Article
  • Open Access
7 Citations
3,787 Views
23 Pages

Antarctic Lichens under Long-Term Passive Warming: Species-Specific Photochemical Responses to Desiccation and Heat Shock Treatments

  • Catalina Marín,
  • Miloš Barták,
  • Götz Palfner,
  • Pablo Vergara-Barros,
  • Francisco Fernandoy,
  • Josef Hájek and
  • Angélica Casanova-Katny

21 September 2022

Climate warming in the Antarctic tundra will affect locally dominant cryptogams. Being adapted to low temperatures and freezing, little is known about the response of the polar lichens’ primary photochemistry to warming and desiccation. Since 2...

  • Article
  • Open Access
4 Citations
2,172 Views
12 Pages

Conformational Dynamics of Phytoglobin BvPgb1.2 from Beta vulgaris ssp. vulgaris

  • Simon Christensen,
  • Olof Stenström,
  • Mikael Akke and
  • Leif Bülow

16 February 2023

Plant hemoglobins, often referred to as phytoglobins, play important roles in abiotic stress tolerance. Several essential small physiological metabolites can be bound to these heme proteins. In addition, phytoglobins can catalyze a range of different...

  • Article
  • Open Access
12 Citations
4,472 Views
18 Pages

The solute carrier L-type amino acid transporter 1 (LAT-1/SLC7A5) is a viable target for drug delivery to the central nervous system (CNS) and tumors due to its high abundance at the blood–brain barrier and in tumor tissue. LAT-1 is only localized on...

  • Article
  • Open Access
22 Citations
4,252 Views
14 Pages

18 January 2020

A short lacustrine sediment core (41 cm) from Lake Bosten in arid central Asia was used to investigate the environmental changes that occurred in the past ≈150 years based on the superposition of climate and anthropogenic factors. Geochemical e...

  • Review
  • Open Access
1,273 Views
20 Pages

26 April 2025

Sediment is a core part of lake ecosystems, and its organic matter (OM) content is a key indicator of lake ecological health and regional carbon cycling. OM provides nutrients for phytoplankton and algae in water, thereby influencing the degree of la...

  • Article
  • Open Access
1 Citations
678 Views
17 Pages

2 August 2025

Soil organic carbon (SOC) pool plays an extremely important role in regulating the global carbon (C) cycle and climate change. Atmospheric nitrogen (N) and phosphorus (P) deposition caused by human activities has significant impacts on soil C sequest...

  • Article
  • Open Access
2 Citations
1,591 Views
14 Pages

Studies on the Correlation between δ13C and Nutrient Elements in Two Desert Plants

  • Zhou Zheng,
  • Xue Wu,
  • Lu Gong,
  • Ruixi Li,
  • Xuan Zhang,
  • Zehou Li and
  • Yan Luo

8 December 2023

Stable carbon isotopes (δ13C) and elemental stoichiometry characteristics are important ways to research the water and nutrient use strategies of plants. Investigating the variation patterns inof δ13C and the major nutrient elements in di...

  • Article
  • Open Access
45 Citations
8,526 Views
18 Pages

Mechanisms of protecting soil carbon (C) are still poorly understood despite growing needs to predict and manage the changes in soil C or organic matter (OM) under anticipated climate change. A fundamental question is how the submicron-scale interact...