Aquatic organisms have played important roles as early warning and monitoring systems for pollutant burdens in our environment. However, they have significant potential to do even more, just as they have in basic biology where preparations like the squid axon have been essential tools in establishing physiological and biochemical mechanisms. This review provides a brief summary of the history o...

BACKGROUND The purpose of this study was to report on the health benefits and curative effects of aquatic exercise. METHODS We adopted the results of high-grade study designs (ie, randomized controlled trials and nonrandomized controlled trials), for which there were many studies on aquatic exercise. Aquatic exercise, in this study, means walking in all directions, stretching, and various exe...

An aquatic hyphomycete, Dwayaangam sp., was isolated from superficially sterilized black spruce (Picea mariana) needles submerged in aerated water in a small glass chamber (microcosm). The internal transcribed spacer (ITS) sequence of this fungus and of a commonly encountered foliar endophyte isolated from P. mariana showed a high degree of similarity. When sporulation was induced in the microc...

Alpine areas are extreme habitats that require special adaptations and involve major trade-offs in terms of life history. Amphibians have the ability to adapt both their life history and developmental traits to alpine environments. Temperate amphibians depend on the quality and availability of aquatic habitats for reproduction. We explored the aquatic habitat used by amphibians in the alpine ar...

Frank Pennekamp ∗1, Nicolas Schtickzelle †2 and Owen L. Petchey ‡1,3 1Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland 2Earth & Life Institute, Université catholique de Louvain, Croix du Sud 4, B-1348 Louvain-la-Neuve, Belgium 3Department of Aquatic Ecology, Eawag: Swiss Federal Institute of Aquatic Science a...

The observed patterns of distribution and abundance of aquatic insects indicate successful adaptations to a wide variety of habitats. To demonstrate how organisms adapt to particular niches of the freshwater community, examples of species using certain environments are presented in this chapter and the life cycle is used as a framework for describing diverse modes of coping with environmental c...

Introduction The City of Austin’s Watershed Protection Department strives to protect the water quality in Austin area watersheds. Austin creeks have been monitored for years through the Environmental The Austin Lake Index (ALI) was designed to provide a yearly assessment of the environmental integrity of Lake Austin, Lady Bird Lake, and Lake Long. Sub-indices used to compute the ALI include rep...

b a ckground: aquatic insects are the  major groups of arthropods that spend  some parts of their life cycle in the water. these insects play an important role for transmission of some human and animal diseases. there is few information about the aquatic insects fauna of iran. m e t hods: to study the aquatic insects fauna, adult, nymphal and larval collections were carried out from different h...