نتایج جستجو برای: mussel
تعداد نتایج: 4637 فیلتر نتایج به سال:
1. Studies of North American streams have shown that hydraulic parameters and stream geomorphology can explain unionid mussel abundance at both the reach and catchment scale. However, few studies have examined applicability of hydrogeomorphic variables across broader spatial scales, such as across whole catchments, or have elucidated conditions under which spates can affect mussel populations i...
Aggregations of the Ponto-Caspian invasive zebra mussel (Dreissena polymorpha) constitute a suitable habitat for macroinvertebrates, considerably increasing their abundance and providing effective antipredator protection. Thus, the overall effect of a mussel bed on particular predator species may vary from positive to negative, depending on both prey density increase and predator ability to pre...
Mussel adhesive proteins have received increased attention as potential biomedical and environmentally friendly underwater adhesives thanks to their fascinating properties, including strong and flexible adhesion, adhesion to various material substrates, water displacement, that they are harmless to human body, and controlled biodegradability. Several mussel adhesive proteins have been identifie...
OBJECTIVE Iatrogenic preterm premature rupture of membranes (iPPROM), the main complication of invasive interventions in the prenatal period, seriously limits the benefit of diagnostic or surgical prenatal procedures. This study aimed to evaluate preventive plugging of punctured fetal membranes in an ex vivo situation using a new mussel-mimetic tissue adhesive (mussel glue) to inhibit leakage. ...
Droughts often pose situations where stream water levels are lowest while human demand for water is highest. Here we present results of an observational study documenting changes in freshwater mussel communities in two southern US rivers during a multi-year drought. During a 13-year period water releases into the Kiamichi River from an impoundment were halted during droughts, while minimum rele...
PURPOSE: Field studies were conducted in 2000 to determine the effects of pulse-power electric field systems on zebra mussel planktonic life stages. In the past, the older settlement stage was the target stage and a high control rate was the goal. In the 2000 studies, it was necessary only to have a consistent effect on immature mussels in the 20to 60-percent range for them to be of value as a ...
BAILLIE, P., TURNER, E. & QUILTY, P.G., 1985 (31:vii): Late Pleistocene marine sediments and fossils from Mussel Roe Bay, northeastern Tasmania. Pap. Proc.R.Soc. Tasm. 119:83-87. ISSN 0080-4703. Geological Survey of Tasmania, Tasmanian Museum and Art Gallery and Antarctic Division, Hobart, Tasmania, Australia. Foraminiferaand mollusc-bearing estuarine sediments were encountered in one of a seri...
The mussel aquaculture industry has raised concerns following the discovery of green crab Carcinus maenas in Placentia Bay Newfoundland in August 2007. Post-larval green crabs have been found in feral mussel beds in high densities in Europe. If this is true for other green crab populations, mussel seed transfers from Placentia Bay could provide a vector for post-larval juvenile crab transfer to...
The lipid class composition in juveniles of the mussel Mytilus galloprovincialis of rocky shore and subtidal origin were compared after transfer to a subtidal environment in the Ria de Arousa (northwest Spain). The experiment was conducted between November 27, 1995 and July 3, 1996. In addition to mussel origin, the influence of the different environmental parameters on the changes in lipid cla...
............................................................................................................................... i Acknowledgments.............................................................................................................. iv List of Tables ..................................................................................................................... ix Li...
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