نتایج جستجو برای: sediment marine environment

تعداد نتایج: 631188  

2012
J. Rajkumar N. S. Swarnakumar K. Sivakumar T. Thangaradjou L. Kannan

Studies on actinobacteria of marine habitats gaining international importance due to its proven abilities of novel compound production. Information on actinobacteria of the mangrove environments is less and hence the present study was carried out in the different mangrove environment of Bhitarkanikka, Orissa. A total of 116 actinobacterial colonies were recorded from 30 mangrove and marine sedi...

2011
S. K. Sahu

In recent years there has been a growing concern all over the globe, about marine pollution due to persistent organic pollutants. Sediments, which are an important component of marine environment can serve as sorbents or concentrators for various persistent organic pollutants, including Polychlorinated Biphenyls (PCBs). In this study, the depth profile of accumulated PCBs in Thane Creek sedimen...

Journal: :Ecotoxicology 2009
Ailbhe Macken Michelle Giltrap Kim Ryall Barry Foley Evin McGovern Brendan McHugh Maria Davoren

Heavy metals are ubiquitous contaminants of the marine environment and can accumulate and persist in sediments. The toxicity of metal contaminants in sediments to organisms is dependent on the bioavailability of the metals in both the water and sediment phases and the sensitivity of the organism to the metal exposure. This study investigated the effects of two metal contaminants of concern (CdC...

Journal: :international journal of molecular and clinical microbiology 0
periasamy dhevagi tamil nadu agricultural university

l glutaminase, a therapeutic enzyme obtained from marine actinomycetes gains importance because of their adaptability to varied environmental factors. an experimental study was carried out to isolate the l glutaminase producing actinomycetes from the marine sediment of thoothukudi. marine sediment sample was collected from six different locations of the thoothukudi coastal ecosystem, enriched w...

2010
Abhrajyoti Ghosh Nirmalya Dey Amit Bera Amit Tiwari KB Sathyaniranjan Kalyan Chakrabarti Dhrubajyoti Chattopadhyay

BACKGROUND Sundarban is the world's largest coastal sediment comprising of mangrove forest which covers about one million hectares in the south-eastern parts of India and southern parts of Bangladesh. The microbial diversity in this sediment is largely unknown till date. In the present study an attempt has been made to understand the microbial diversity in this sediment using a cultivation-inde...

2009
Lisa M. Adams Vivian R. Cumbo Misaki Takabayashi

Many symbiotic marine invertebrates acquire free-living Symbiodinium from the environment. Abundance and diversity of free-living Symbiodinium could influence recovery from bleaching, resilience, and the long-term adaptation of host organisms. Although free-living Symbiodinium have been detected in the water column and substrates of coral reefs, their diversity and availability to the hosts are...

2018
Gennadi Lessin Yuri Artioli Elin Almroth-Rosell Jerry C. Blackford Andrew W. Dale Ronnie N. Glud Jack J. Middelburg Roberto Pastres Ana M. Queirós Christophe Rabouille Pierre Regnier Karline Soetaert Cosimo Solidoro Nicholas Stephens Evgeniy Yakushev

Citation: Lessin G, Artioli Y, Almroth-Rosell E, Blackford JC, Dale AW, Glud RN, Middelburg JJ, Pastres R, Queirós AM, Rabouille C, Regnier P, Soetaert K, Solidoro C, Stephens N and Yakushev E (2018) Modelling Marine Sediment Biogeochemistry: Current Knowledge Gaps, Challenges, and Some Methodological Advice for Advancement. Front. Mar. Sci. 5:19. doi: 10.3389/fmars.2018.00019 Modelling Marine ...

2013
Cynthia B. Silveira Alexander M. Cardoso Felipe H. Coutinho Joyce L. Lima Leonardo H. Pinto Rodolpho M. Albano Maysa M. Clementino Orlando B. Martins Ricardo P. Vieira

The Archaea domain is ubiquitously distributed and extremely diverse, however, environmental factors that shape archaeal community structure are not well known. Aquatic environments, including the water column and sediments harbor many new uncultured archaeal species from which metabolic and ecological roles remain elusive. Some environments are especially neglected in terms of archaeal diversi...

2015

The Environmental Impact Statement (EIS) and Addendum submitted by PNW LNG to the Canadian Environmental Assessment Agency (CEAA) on 28 Feb 2014 and 12 Dec 2014, respectively, provided information with regard to potential effects of marine operations and marine structures upon the sea bed and habitat at Agnew and Flora Banks (Figure 2). The Addendum also provided detailed responses to Informati...

2017
SAToRu SuzuKIi

We found increased numbers ofoxytetracycline (OTC)-resistant bacteria in sediment and seawater around a marine aquaculture site after OTC therapy, Samples were collected at an aquaculture site along the coast of the Seto Inland Sea, Japan in 2004. In April, the percentage of bacteria resistant to 60 pg rnLLi OTC in the surface sediment was 6,8%-20.0%, The percentages increased during OTC therap...

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