نتایج جستجو برای: daphnia magna reproductive performance

تعداد نتایج: 1144248  

ژورنال: آبزیان زینتی 2020

A new and suitable breeding method for inducing asexual or sexual reproduction (opium pneumonia) of Daphnia Magna is described in the laboratory. Drying and dehydration cause the production of epiphium epiphium with rapid hatching. In the present study, the effect of many different parameters such as pesticides, light periods and light intensity, sediments, culture oxygen levels, dark period, a...

Journal: :Water 2022

The effect of nanoplastics (NPs) has been shown to interact with the pollutants, including antibiotics. However, little is known about studies performed on freshwater organisms. In this study, we aimed test hypothesis that both NPs and antibiotics affect life history traits planktonic Daphnia magna, a model organism in ecotoxicological research, as well metabolic taxonomic fingerprint their gut...

Journal: :Water research 2010
Miquel Lürling Yora Tolman

The novel lanthanum-modified clay water treatment technology (Phoslock seems very promising in remediation of eutrophied waters. Phoslock is highly efficient in stripping dissolved phosphorous from the water column and in intercepting phosphorous released from the sediments. The active phosphorous-sorbent in Phoslock is the Rare Earth Element lanthanum. A leachate experiment revealed that lanth...

2015
Miguel Barbosa Isabel Lopes Catia Venâncio Maria João Janeiro Michael Blair Morrisey Amadeu M.V.M. Soares

Mothers are expected to use environmental cues to modify maternal investment to optimize their fitness. However, when the environment varies unpredictably, cues may not be an accurate proxy of future conditions. Under such circumstances, selection favors a diversifying maternal investment strategy. While there is evidence that the environment is becoming more uncertain, the extent to which moth...

Journal: :Biometrics 2015
Alberto Cassese Michele Guindani Philipp Antczak Francesco Falciani Marina Vannucci

In this article we propose a Bayesian hierarchical model for the identification of differentially expressed genes in Daphnia magna organisms exposed to chemical compounds, specifically munition pollutants in water. The model we propose constitutes one of the very first attempts at a rigorous modeling of the biological effects of water purification. We have data acquired from a purification syst...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی گرگان - دانشکده منابع طبیعی گرگان 1394

فاضلاب های شهری، صنعتی، کشاورزی ترکیباتی چون نیترات و فسفات را وارد محیط های آبی می کنند. افزایش ترکیبات نیترات و فسفات در آبهای زیر زمینی و سطحی یک نگرانی زیست محیطی در سراسر جهان می باشد. در تحقیق حاضر کلادوسر آب شیرین daphnia magna در سطوح کشنده و تحت کشنده نیترات سدیم و دی سدیم هیدروژن فسفات برای تعیین اثرات نیترات و فسفات بر بازماندگی و نرخ فیلتراسیون مورد بررسی قرار گرفت. طبق نتایج، فسفات...

Journal: :Science of The Total Environment 2016

Journal: :International journal of science letters 2023

The objective of our study is to reveal the effects paper cups sold under different brands on aquatic test organisms, Daphnia magna and Artemia salina, which are frequently used in toxicity studies. To this end, survival rates D. A. salina individuals, were kept alive after cooling exposed 20 °C 80 °C, for 24, 48, 72, 96 hours determined. 
 Upon examining results, while no significant decr...

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