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Sathy A. Naidu, Kandasamy Kathiresan, Jeffrey H. Simonson, Arny L. Blanchard, Christian J. Sanders, Alexander Pérez, Ruth M. Post, Thanumalaya Subramoniam, Raj A. Naidu and Rajendran Narender
Differences in grain size, total organic carbon (OC), total nitrogen (TN), OC/TN ratios, and stable isotope (d13C and d15N) were assessed in sediments from areas covered by mangrove and saltmarsh vegetation within Pichavaram estuary (Southeast India). Th...
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Elissavet Dotsika and Georgios Diamantopoulos
In this paper, we study d15N enrichment as an indicator not only of marine protein diet, but also of climate change. The slope of the variation of d15N with precipitation was calculated equal to 0.38/100 mm of precipitation for Greek plants, 0.38/100 mm ...
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Anna Visconti, Rossana Caroni, Ruth Rawcliffe, Amedeo Fadda, Roberta Piscia and Marina Manca
Functional-based approaches are increasingly being used to define the functional diversity of aquatic ecosystems. In this study, we proposed the use of d13C and d15N stable isotopes as a proxy of zooplankton functional traits in Lake Maggiore, a large, d...
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Anna Visconti, Rossana Caroni, Ruth Rawcliffe, Amedeo Fadda, Roberta Piscia and Marina Manca
Functional-based approaches are increasingly being used to define the functional diversity of aquatic ecosystems. In this study, we proposed the use of d13C and d15N stable isotopes as a proxy of zooplankton functional traits in Lake Maggiore, a large, d...
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Tetsuya Endo, Osamu Kimura, Masaru Terasaki, Yoshihisa Kato, Yukiko Fujii and Koichi Haraguchi
The changes in the stable isotope ratios of carbon (d13C), nitrogen (d15N), oxygen (d18O), and mercury (Hg) concentrations in muscle and liver tissues during and after lactation were studied in killer whales stranded along the coast of Hokkaido, in the n...
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F. Virginia Pérez-Castillo, M. Catalina Alfaro-De la Torre, Rebeca Y. Pérez-Rodriguez, Francisco A. Comín Sebastián
Pág. 22 - 29
In this study, we estimated the depth profiles of nutrients in the natural wetland ?Ciénega Tamasopo? (Central Mexico) located in the Neotropic region. The concentration profiles of Corg, NT, Corg/NT ratios and isotopic composition (d13C, d15N) were dete...
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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 (d13C and d15N), 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 activi...
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Danyang Li, Jinpei Yan, Zhiqiang Lu, Tianshu Chu, Jun Li and Tajen Chu
Organic matter in the productive mangrove?estuary ecosystem plays an important role in global climate changes. In recent years, the eutrophication in such areas caused by anthropogenic inputs of sewage has been revealed, highlighting the need to understa...
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Linas Balciauskas, Vitalijus Stirke, Andrius Garbaras, Raminta Skipityte and Laima Balciauskiene
With only periodic and incomplete studies of its diet over time, all with differing methods and conclusions, the degree of omnivory in the bank vole (Clethrionomys glareolus) is not fully clear. We assessed the trophic niche of the species using isotopic...
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In-Young Ahn, Francyne Elias-Piera, Sun-Yong Ha, Sergio Rossi and Dong-U Kim
The amphipod Gondogeneia antarctica is among the most abundant benthic organisms, and a key food web species along the rapidly warming West Antarctic Peninsula (WAP). However, little is known about its trophic strategy for dealing with the extreme season...
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Jian Gao, Ping Zhong, Jiajia Ning, Zhengwen Liu and Erik Jeppesen
Studies suggest that, unlike the situation in temperate lakes, high biomasses of omnivorous fish are maintained in subtropical and tropical lakes when they shift from a turbid phytoplankton-dominated state to a clear water macrophyte-dominated state, and...
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Jian Gao, Ping Zhong, Jiajia Ning, Zhengwen Liu, Erik Jeppesen
Pág. 1 - 21
Studies suggest that, unlike the situation in temperate lakes, high biomasses of omnivorous fish are maintained in subtropical and tropical lakes when they shift from a turbid phytoplankton-dominated state to a clear water macrophyte-dominated state, and...
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Jieun Kim, Hee-Young Yun, Eun-Ji Won, Hyuntae Choi, Seok-Hyeon Youn and Kyung-Hoon Shin
Despite their crucial roles in transporting primary productions in marine food webs, the trophic dynamics of zooplankton throughout the seasons have rarely been studied. In this study, four dominant zooplankton taxa with phytoplankton size composition an...
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Pham Van Hieu, Nguyen Thi Hoang Ha, Luu Viet Dung and Koji Omori
Mangrove forests are important in providing habitats for complex communities of terrestrial and marine fauna. Moreover, they are recognized as highly productive ecosystems in providing nutrients to mangrove food webs or exporting them to nearby coastal w...
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Mikhail S. Golubkov, Vera N. Nikulina, Alexei V. Tiunov and Sergey M. Golubkov
Knowledge of carbon and nitrogen isotopic ratios in organic matter and their changes is important when studying nutrient cycles in aquatic ecosystems. Relationships between d13C and d15N values of suspended particulate organic matter (POM), water tempera...
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Carla S. S. Gouveia, Vincent Lebot and Miguel Pinheiro de Carvalho
Taro (Colocasia esculenta (L.) Schott) and sweet potato (Ipomoea batatas (L.) Lam.) are important food crops worldwide, whose productivity is threatened by climatic constraints, namely drought. Data calibration, validation, and model development of high-...
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Javier Tejedor, Gustavo Saiz, Heinz Rennenberg and Michael Dannenmann
Sustainable forest management should avoid disturbance and volatilization of the soil carbon (C) and nitrogen (N) stocks both under present and projected future climate. Earlier studies have shown that thinning of European beech forests induces a strong ...
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Qianwen Ye, Cuicui Hou, Qiang Wang, Changjun Gao, Kay Stefanik, Feng Li and Bingbing Jiang
For decades in China, carbon neutrality policies have spurred the establishment of northern margin mangroves as artificial blue carbon ecosystems. However, there has been limited research on the impact of plantation and invasion on the stocks and sources...
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Francisco Pozo-Solar, Marcela Cornejo-D?Ottone, Roberto Orellana, Carla Acuña, Cecilia Rivera, Polette Aguilar-Muñoz, Céline Lavergne and Verónica Molina
Coastal zones are ecosystems that are sensitive to climate change and anthropogenic pollution, resulting in a potential loss of biodiversity and ecosystem services through eutrophication and nutrient imbalances, among others. The coastal El Sauce catchme...
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Peining Yang, Shengyi Mao, Yiyun Cao, Li Liu, Mengyue Zhai, Zhongyan Qiu and Lihua Liu
One gravity core retrieved from the Niger Delta was used to explore the origin of deposited organic matter (OM) and the paleo-climatic and environmental conditions over the Holocene in equatorial West Africa. The geochemical properties of sediments inclu...
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