نتایج جستجو برای: sediment and marine organisms

تعداد نتایج: 16860938  

2009
Michael L. Arnold Nicole D. Fogarty

The role that reticulate evolution (i.e., via lateral transfer, viral recombination and/or introgressive hybridization) has played in the origin and adaptation of individual taxa and even entire clades continues to be tested for all domains of life. Though falsified for some groups, the hypothesis of divergence in the face of gene flow is becoming accepted as a major facilitator of evolutionary...

2017
Rick Bruintjes Harry R Harding Tom Bunce Fiona Birch Jessica Lister Ilaria Spiga Tom Benson Kate Rossington Diane Jones Charles R Tyler Andrew N Radford Stephen D Simpson

Empirical investigations of the impacts of anthropogenic stressors on marine organisms are typically performed under controlled laboratory conditions, onshore mesocosms, or via offshore experiments with realistic (but uncontrolled) environmental variation. These approaches have merits, but onshore setups are generally small sized and fail to recreate natural stressor fields, whereas offshore st...

Journal: :Environmental science. Processes & impacts 2014
Shelagh K Malham Paulina Rajko-Nenow Eleanor Howlett Karen E Tuson Tracy L Perkins Denise W Pallett Hui Wang Colin F Jago Davey L Jones James E McDonald

Anthropogenic activities have increased the load of faecal bacteria, pathogenic viruses and nutrients in rivers, estuaries and coastal areas through point and diffuse sources such as sewage discharges and agricultural runoff. These areas are used by humans for both commercial and recreational activities and are therefore protected by a range of European Directives. If water quality declines in ...

Journal: :Proceedings. Biological sciences 2004
Mya Breitbart Ben Felts Scott Kelley Joseph M Mahaffy James Nulton Peter Salamon Forest Rohwer

Viruses, most of which are phage, are extremely abundant in marine sediments, yet almost nothing is known about their identity or diversity. We present the metagenomic analysis of an uncultured near-shore marine-sediment viral community. Three-quarters of the sequences in the sample were not related to anything previously reported. Among the sequences that could be identified, the majority belo...

A. M. Gozler, B. Verep, Ç. Eruz, C. Şahin, E. Agirbas, L. Tolun, M. Mantikci, N.S. Bascinar, S. Serdar,

The present study was conducted to examine the impact of cage aquaculture on benthic communities in coastal areas (depth 25 to 50 m) from fish farming operations located along the southeastern Black Sea (Ordu-Perşembe, Trabzon-Yomra and Rize central). Sampling was conducted seasonally from April 2007 to 2009. Sediment samples were taken using Ekman Grab (box core- 0.04 m2). Temperature, salinit...

Journal: :Journal of bacteriology 2012
Yong-Jik Lee Sang-Jae Lee Haeyoung Jeong Hyun Ju Kim Naeun Ryu Byoung-Chan Kim Han-Seung Lee Dong-Woo Lee Sang Jun Lee

Bacillus oceanisediminis 2691 is an aerobic, Gram-positive, spore-forming, and moderately halophilic bacterium that was isolated from marine sediment of the Yellow Sea coast of South Korea. Here, we report the draft genome sequence of B. oceanisediminis 2691 that may have an important role in the bioremediation of marine sediment.

2003
Ovidiu Ghita Paul Whelan Robert Kennedy Martin Ryan

Sediment profile imagery (SPI) is a remote sensing technique that is used for determining whether the marine sediments provide the suitable habitat for benthic (bottom-dwelling) fauna. The SPI technique is based on an inverse periscope that penetrates the seabed and the captured images are analysed in order to evaluate the activity of the resident marine fauna and the overall level of sediment ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید