نتایج جستجو برای: fjord

تعداد نتایج: 1448  

Journal: :Journal of fish diseases 2009
P A Heuch R S Olsen R Malkenes C W Revie G Gettinby M Baillie F Lees B Finstad

The long and narrow Hardanger fjord in western Norway has a high density of salmon farms and has had severe salmon lice, Lepeophtheirus salmonis, problems. In the years 2004-06, salmon lice numbers were recorded in selected salmon farms in the fjord as part of a larger research project. Most farm sites participated in a strategic control programme and were deloused between November and January ...

Journal: :Applied and environmental microbiology 1980
L A Meyer-Reil M Bölter R Dawson G Liebezeit H Szwerinski K Wolter

At 12 stations located in sandy beach sediments of the brackish water Kiel Fjord and Kiel Bight (Baltic Sea, FRG), variations and interrelationships of microbiological, chemical, and physicochemical parameters were monitored. Depending upon location, wide variations of a number of parameters reflecting dissolved organic and inorganic nutrients, chlorophyll a, microbial number, and uptake activi...

2000
Anders Stigebrandt

Fluctuating barotropic flow over sills in stratified water is subjected to baroclinic wave drag and accompanying barotropic to baroclinic energy transfer. In fjords, this process has notable consequences, for instance, tidal retardation across fjord sills, damping of barotropic seiches and enhanced diapycnal mixing in the basin water. These may be computed from simple models only including loca...

2008
MARK A. KESSLER ROBERT S. ANDERSON JASON P. BRINER

Fjords commonly punctuate continental edges formerly occupied by Quaternary ice sheets, reaching kilometre depths and extending many tens of kilometres inland. These features must have been created by late Cenozoic ice sheets, because rivers cannot erode bedrock much below sea level. Ice sheets drain primarily through fjords; therefore, widespread fjord insertion may have altered ice-sheet size...

Journal: :Environmental toxicology and chemistry 2004
Liza Viglino Emilien Pelletier Richard St-Louis

An exhaustive study of the distribution of butyltin species was conducted in the sediment of the Saguenay Fjord (Canada), a semi-enclosed marine system with sediment permanently submitted to sub-Arctic cold conditions. Concentrations of total butyltins (tributyltin [TBT], dibutyltin, and monobutyltin) ranged from 6 to 288 ng Sn/g dry weight and were typical of those reported for contaminated co...

2017
Alexis N. Moyer Peter W. Nienow Noel Gourmelen Andrew J. Sole Donald A. Slater

Oceanic forcing of the Greenland Ice Sheet is believed to promote widespread thinning at tidewater glaciers, with submarine melting proposed as a potential trigger of increased glacier calving, retreat, and subsequent acceleration. The precise mechanism(s) driving glacier instability, however, remain poorly understood, and while increasing evidence points to the importance of submarine melting,...

2011
Iwona KONIECZNA Barbara WOJTASIK Marek KWINKOWSKI Dorota BURSKA Kamil NOWIŃSKI Paulina ŻARNOWIEC Wiesław KACA

The paper presents the first physicochemical and microbiological studies conducted in the northern area of Svalbard (Spitsbergen). Ten sediment samples were collected from the bottom of the longest fjord in the region, Wijdefjorden. Bottom sediments from ten lakes lo− cated along the shores of Wijdefjorden and Woodfjorden were also sampled. Organic matter content (LOI), water content, temperatu...

2015
F. Løvholt S. Glimsdal P. Lynett G. Pedersen

Tsunamis induced by rock slides constitute a severe hazard towards coastal fjord communities. Fjords are narrow and rugged with steep slopes, and modeling the shortfrequency and high-amplitude tsunamis in this environment is demanding. In the present paper, our ability (and the lack thereof) to simulate tsunami propagation and run-up in fjords for typical wave characteristics of rock-slide-indu...

2014
Ingrid Solberg Stein Kaartvedt

Upward-facing echosounders that provided continuous, long-term measurements were applied to address the surfacing behavior and gas release of the physostome sprat (Sprattus sprattus) throughout an entire winter in a 150-m-deep Norwegian fjord. During ice-free conditions, the sprat surfaced and released gas bubbles at night with an estimated surfacing rate of 3.5 times per fish day-1. The vertic...

2014
Jon Y. Landvik Helena Alexanderson Mona Henriksen Ólafur Ingólfsson

The behaviour of ice sheets and their geologic imprints in fjord regions are often multifaceted. Fjords, which were temporarily occupied by fast flowing ice-streams during major glaciations, and inter-fjord areas, which were covered by less active ice, show different signatures of past glaciations. The land and marine records of glaciations over the western Svalbard fjord region have been exten...

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