Results 31 to 40 of about 6,223 (163)

Terrigenous subsidies in lakes support zooplankton production mainly via a green food chain and not the brown food chain

Frontiers in Ecology and Evolution, 2022
Terrestrial organic matter (t-OM) has been recognized as an important cross-boundary subsidy to aquatic ecosystems. However, recent evidence has shown that t-OM contributes little to promote secondary production in lakes because it is a low-quality food ...
Fumiya Hirama, Jotaro Urabe, Hideyuki Doi, Takehiro Kazama, Takumi Noguchi, Tyler H. Tappenbeck, Izumi Katano, Izumi Katano, Masato Yamamichi, Takehito Yoshida, Takehito Yoshida, James J. Elser   +11 more
doaj   +1 more source

Predicting Nutrient Incontinence in the Anthropocene at Watershed Scales

Frontiers in Environmental Science, 2020
Quantifying nutrient attenuation at watershed scales requires long-term water chemistry data, water discharge, and detailed nutrient input chronicles.
Rebecca J. Frei, Rebecca J. Frei, Benjamin W. Abbott, Remi Dupas, Sen Gu, Gerard Gruau, Zahra Thomas, Tamara Kolbe, Luc Aquilina, Thierry Labasque, Anniet Laverman, Ophelie Fovet, Florentina Moatar, Gilles Pinay   +13 more
doaj   +1 more source

Anchialine pool shrimp (Halocaridina rubra) as an indicator of sewage in coastal groundwater ecosystems on the island of Hawaiʻi

PLoS ONE, 2023
Groundwater is a primary pathway for wastewater and other pollutants to enter coastal ecosystems worldwide. Sewage associated pathogens, pharmaceuticals, and other emerging contaminants pose potential risks to marine life and human health.
Lisa C. Marrack, Sallie C. Beavers
doaj  

The Connection between a Suspended Sediments and Reservoir Siltation: Empirical Analysis in the Maziarnia Reservoir, Poland

Resources, 2020
This paper presents research on the influence of suspended sediments on selected aspects of a reservoir’s functioning. As the amount of sediment suspended in water (SS) there was found to correlate significantly with sedimentation rate (Us), it was
Maksymilian Cieśla, Renata Gruca-Rokosz, Lilianna Bartoszek   +2 more
doaj   +1 more source

Blooms of cyanobacteria in a temperate Australian lagoon system post and prior to European settlement [PDF]

Biogeosciences, 2016
Blooms of noxious N2 fixing cyanobacteria such as Nodularia spumigena are a recurring problem in some estuaries; however, the historic occurrence of such blooms in unclear in many cases.
P. L. M. Cook, M. Jennings, D. P. Holland, J. Beardall, C. Briles, A. Zawadzki, P. Doan, K. Mills, P. Gell   +8 more
doaj   +1 more source

Soil Isotopically Exchangeable Phosphorus: A Comparison between E and L Values

Soil Science Society of America Journal, 1994
Abstract This study was designed to explain the apparent discrepancies often reported in the literature between E and L values, two parameters obtained from isotopic exchange experiments and commonly used to quantify available soil ...
Frossard, E., Fardeau, J.C., Brossard, M., Morel, J.L.   +3 more
openaire   +3 more sources

Phosphorus in the coarse soil fraction is related to soil organic phosphorus mineralization measured by isotopic dilution [PDF]

Soil Biology and Biochemistry, 2016
A sound prediction of soil organic phosphorus (Po) mineralization would be helpful to improve fertilizer recommendations. However, in most mineral soils expensive and time consuming isotopic dilution experiments are required to assess Po mineralization.
Nicolas Wyngaard, Miguel Lorenzo Cabrera, Klaus A. Jarosch, Else Katrin Bünemann   +3 more
openaire   +2 more sources

Late Ediacaran to Early Cambrian stratigraphic correlation and its geological implications in the northwestern Sichuan Basin: insights from phosphorus, isotopes, and small shelly fossils

Frontiers in Earth Science
The characteristics of elements, isotopes, and small shelly fossils were investigated for Late Ediacaran to Early Cambrian stratigraphy division and to discuss their geological implications in the northwestern Sichuan Basin. The results reveal that small
Wenzheng Li, Wenzheng Li, Jianyong Zhang, Xinjian Zhu, Yongxiao Wang, Xingwang Tian, Xiaodong Fu, Hua Jiang, Yuan Zhong, Shugen Liu, Rong Li, Bing Pan, Bin Deng   +12 more
doaj   +1 more source

Body Composition of Healthy Cats and Cats with Chronic Kidney Disease Fed on a Dry Diet Low in Phosphorus with Maintenance Protein

Toxins, 2022
The aim was to evaluate the effect of feeding a low-phosphorus and maintenance protein diet in healthy cats and cats with chronic kidney disease (CKD) with IRIS stages 1 (CKD-1) and 2 (CKD-2).
Daniela P. Machado, Bruna Ruberti, Fabio A. Teixeira, Thiago H. A. Vendramini, Karina Pfrimer, Fernanda C. Chacar, Julio C. C. Balieiro, Cristiana F. F. Pontieri, Marcio A. Brunetto   +8 more
doaj   +1 more source

Combined Nitrogen‐Isotope and Cyclostratigraphy Evidence for Temporal and Spatial Variability in Frasnian–Famennian Environmental Change

Geochemistry, Geophysics, Geosystems, 2022
Widespread marine anoxia triggered by the runoff and recycling of nutrients was a key phenomenon associated with the Frasnian–Famennian (FF) mass extinction.
L. M. E. Percival, L. Marynowski, F. Baudin, S. Goderis, D. DeVleeschouwer, M. Rakociński, K. Narkiewicz, C. Corradini, A.‐C. DaSilva, P. Claeys   +9 more
doaj   +1 more source