نتایج جستجو برای: aquatic life

تعداد نتایج: 782087  

2017

Biodiversity is one of the most important characteristics of the aquatic ecosystem for maintaining its stability and resilience [1]. Aquatic macrophytes are macroscopic forms of aquatic vegetation, including macroalgae, mosses, ferns and angiosperms found in aquatic habitat. They have evolved from many diverse groups and often demonstrate extreme flexibility in structure and morphology in relat...

2017
Jun-Hwan Kim Ju-Chan Kang

Heavy metal pollution in aquatic environments is a critical environmental concern, as the metals can accumulate in aquatic organisms and humans via the food chain, creating a risk to human health. Among the metals, Pb is one of the most toxic to aquatic organisms[1]. Pb is a naturally occurring substance, released as a consequence of geological weathering and volcanic activity, however, high co...

Journal: :Reviews of environmental contamination and toxicology 2008
Li-Ming He John Troiano Albert Wang Kean Goh

Lambda-cyhalothrin is a pyrethroid insecticide used for controlling pest insects in agriculture, public health, and in construction and households. Lambda-cyhalothrin is characterized by low vapor pressure and a low Henry's law constant but by a high octanol-water partition coefficient (K(ow)) and high water-solid-organic carbon partition coefficient (K(oc)) values. Lambda-cyhalothrin is quite ...

Journal: :Environmental Health Perspectives 1999
C G Daughton T A Ternes

During the last three decades, the impact of chemical pollution has focused almost exclusively on the conventional "priority" pollutants, especially those acutely toxic/carcinogenic pesticides and industrial intermediates displaying persistence in the environment. This spectrum of chemicals, however, is only one piece of the larger puzzle in "holistic" risk assessment. Another diverse group of ...

2014
Wei-Chao Wang Huan Mao Dan-Dan Ma Wan-Xi Yang

*Correspondence: Wan-Xi Yang, The Sperm Laboratory, College of Life Sciences, Zhejiang University, 866 Yu Hang Tang Road, Hangzhou, Zhejiang 310058, China e-mail: [email protected] The documents on Metallothioneins (MTs) in aquatic creatures, especially focusing on their function as biomarkers in environmental monitoring programmes, are vast and increasing. There are, however, few papers to s...

Journal: :Revue scientifique et technique 2009
E S Weber G Blanc R P Hedrick

Fish are the largest class of vertebrates, with over 25,000 estimated species and subspecies. Fish have evolved unique anatomical and physiological adaptations, when compared to terrestrial vertebrates, for life in a range of aquatic environments. Interest in aquatic animal health has been recorded in Eastern and Western cultures for more than 2,000 years. In recent times, there has been an inc...

Journal: :The Journal of parasitology 2004
B Hanelt J Janovy

To complete their life cycle, gordiids must make a transition from aquatic to terrestrial environments. However, epibenthic aquatic larvae and their terrestrial definitive hosts do not overlap in habitat. This has led many investigators to suggest that infections are acquired through the ingestion of insects, which become infected as aquatic larvae with gordiid cysts and subsequently carry gord...

2015
Ramji K. Bhandari Frederick S. vom Saal Donald E. Tillitt

The transgenerational consequences of environmental contaminant exposures of aquatic vertebrates have the potential for broad ecological impacts, yet are largely uninvestigated. Bisphenol A (BPA) and 17a-ethinylestradiol (EE2) are two ubiquitous estrogenic chemicals present in aquatic environments throughout the United States and many other countries. Aquatic organisms, including fish, are expo...

2016
Iain Barber Boris W. Berkhout Zalina Ismail

Altered thermal regimes associated with climate change are impacting significantly on the physical, chemical, and biological characteristics of the Earth's natural ecosystems, with important implications for the biology of aquatic organisms. As well as impacting the biology of individual species, changing thermal regimes have the capacity to mediate ecological interactions between species, and ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید