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Fatemeh Parikhani, Ehsan Atazadeh, Jafar Razeghi, Mohammad Mosaferi and Maxim Kulikovskiy
This work is the first in a series, and its purpose is the comprehensive assessment of the ecological state of the Aras River using biological indicators of water quality by diatoms based on species? ecological preferences, pollution indices, statistics,...
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Sophie Gentès, Mathilde Monperrus, Alexia Legeay, Claire Gassie, Régine Maury-Brachet, Jean-Marc André and Rémy Guyoneaud
The freshwater lakes of southwestern France are subject to the development of invasive macrophytes which are associated with mercury (Hg) contamination of the food web. The aim of this study was to determine the bioavailability of methylmercury (MeHg) pr...
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Yehui Huang, Xueying Mei, Lars G. Rudstam, William D. Taylor, Jotaro Urabe, Erik Jeppesen, Zhengwen Liu and Xiufeng Zhang
The presence of omnivorous fish is known to affect aquatic ecosystems, including water quality. The effect, however, depends on the species in question, and our knowledge is limited on the effect of omnivorous crucian carp (Carassius auratus), a common a...
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Andres D. Sola, Luca Marazzi, Monica M. Flores, John S. Kominoski and Evelyn E. Gaiser
Nitrogen (N) and phosphorus (P) concentrations and N:P ratios critically influence periphyton productivity and nutrient cycling in aquatic ecosystems. In coastal wetlands, variations in hydrology and water source (fresh or marine) influence nutrient avai...
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Giri Kattel, Yongjiu Cai, Xiangdong Yang, Ke Zhang, Xu Hao, Rong Wang and Xuhui Dong
The lakes across China’s middle and lower reaches of the Yangtze River system have a long history of sustaining human pressures. These aquatic resources have been exploited for fisheries and irrigation over millennia at a magnitude of scales, with ...
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Davi de Holanda Cavalcante, Francisco Roberto dos Santos Lima, Vanessa Tomaz Rebouças, Marcelo Vinícius do Carmo e Sá
Pág. 601 - 607
The present study aimed to assess the possible beneficial effects of the integration between bioflocs and periphyton to the Nile tilapia?s water quality and growth performance. There were four treatments with five replicates each: (1) Control: green wate...
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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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Carlos Iglesias, Erik Jeppesen, Néstor Mazzeo, Juan Pablo Pacheco, Franco Teixeira-de Mello, Frank Landkildehus, Claudia Fosalba, Juan M. Clemente, Mariana Meerhoff
Pág. 1 - 17
Predators play a key role in the functioning of shallow lakes. Differences between the response of temperate and subtropical systems to fish predation have been proposed, but experimental evidence is scarce. To elucidate cascading effects produced by pre...
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Hu He, Xuguang Luo, Hui Jin, Jiao Gu, Erik Jeppesen, Zhengwen Liu and Kuanyi Li
Phytoplankton and benthic algae coexist in shallow lakes and the outcome of the competition between these two photoautotrophs can markedly influence water clarity. It is well established that exposed artificial substrate in eutrophic waters can remove nu...
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Mohamed Ateia, Mahmoud Nasr, Akira Ikeda, Hisako Okada, Manabu Fujii, Masafumi Natsuike, Chihiro Yoshimura
Pág. 1 - 12
Artificial streams were set up to test the relationship between near-bed water velocity and periphyton growth. Periphyton community samples collected from a Japanese stream were incubated for 44 days under a light intensity of 252 ± 72 µmol·photons/m2·s,...
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