Navigation Links
Eutrophication makes toxic cyanobacteria more toxic
Date:12/6/2010

Continued eutrophication of the Baltic Sea, combined with an ever thinner ozone layer, is favouring the toxic cyanobacterium Nodularia spumigena, reveals research from the University of Gothenburg, Sweden.

"There are several species of cyanobacteria, or blue-green algae, that can form surface blooms in the Baltic Sea," explains Malin Mohlin from the University of Gothenburg's Department of Marine Ecology. "Which species ends up dominating a bloom depends partly on how they deal with an increased amount of UV light and a shortage of nutrients. Nodularia spumigena is most toxic when there is little nitrogen in the water but sufficient amounts of phosphorus."

As a result, wastewater treatment processes that concentrate on removing nitrogen can make cyanobacterial blooms more toxic. Wastewater therefore needs to be cleared of both nitrogen and phosphorus.

Mohlin's research shows that Nodularia spumigena can be expected to be most toxic at the beginning of a bloom in July. At that time there is generally more phosphorus than nitrogen in the water, and the cyanobacteria have not yet to float to the surface but are found deeper in the water where they have not yet been exposed to UV light.

Surface blooms of cyanobacteria, which are a type of phytoplankton, have increased in both frequency and magnitude in the Baltic Sea in recent decades, and researchers are divided on the cause. Some put it down to eutrophication an excess of nutrients in the water caused by human emissions of nitrogen and phosphorus over the past 150 years. Others have studied the Baltic Sea's bottom sediment and argue that this is a natural phenomenon that has been ongoing for more than 7,000 years and is due instead to climate variations.

Different species of nitrogen-fixing cyanobacteria bloom at different times. Aphanizomenon species tend to bloom from May to June, but from July to August the toxic species Nodularia spumig
'/>"/>

Contact: Malin Mohlin
malin.mohlin@marecol.gu.se
46-031-786-2954
University of Gothenburg
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Researchers call for nitrogen and phosphorus reductions to combat eutrophication in aquatic systems
2. MU scientist develops salmonella test that makes food safer, reduce recalls
3. Supercomputer makes it possible to develop a Brazilian Global Climate System Model
4. Humidity makes gecko feet stickier
5. Genomic haircut makes worlds tiniest genome even smaller: UBC research
6. Pitt/Iowa team finds cellular structural molecule can be toxic: Makes pneumonia worse
7. Neuronal diversity makes a difference, says Carnegie Mellon study
8. What makes a good egg and healthy embryo?
9. Selenium makes more efficient solar cells
10. Why (smart) practice makes perfect
11. New retrieval method makes studying cancer proteins easier
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Eutrophication makes toxic cyanobacteria more toxic
(Date:3/12/2015)... -- The mascots of the Atlantic Coast Conference spent ... Forest Baptist Medical Center. They stopped by as part ... Basketball Tournament. Young patients enjoyed bonding with their favorite ... Brenner Children,s Hospital is the pediatric arm ... hospital in northwest North Carolina ...
(Date:3/11/2015)... Mar. 11, 2015 Research and Markets ... "Access Control Market by Product, Application & By ... report to their offering. , This report ... reach $10.4 billion by 2020, with an estimated CAGR ... covers the products types such as contact cards & ...
(Date:3/10/2015)... Colo. , March 10, 2015 ... Flight "Personalized Medicine in Human Space ... and Thomas J. Goodwin , Ph.D. was recently ... of the past two years. Specifically, "Personalized ... most downloaded scientific papers published in 2013 and 2014 ...
Breaking Biology News(10 mins):Global Access Control (Cards & Readers, Biometrics, Controllers, Management Software) Market 2015-2020 - Analysis of the $10 Billion Market 2"Personalized Medicine in Human Space Flight" Listed Among Most Influential Papers of 2013 and 2014 2
... 30,000 still images and video, as well as local ... Encyclopedia of Life via new tools that let the ... science collaboration of unprecedented scale. Experts and citizen ... encyclopedia, which dedicates a Web page to each known ...
... , , , ... biometric technology research and development firm, announced today that GHG ... provide their customers with M2SYS, Bio-SnapON(TM) biometric software solution. , ... biometric recognition capabilities to their web-based employee time tracking software, ...
... FORT WORTH, Texas, Aug. 4 Of the 600,000-800,000 people ... is estimated that by 2010, human trafficking will be the No. 1 ... Ph.D., professor and chairman of the department of forensic and investigative Genetics ... at the University of North Texas (UNT) Health Science ...
Cached Biology News:Cool new tools let public contribute to massive interactive online biodiversity encyclopedia 2Cool new tools let public contribute to massive interactive online biodiversity encyclopedia 3Cool new tools let public contribute to massive interactive online biodiversity encyclopedia 4Cool new tools let public contribute to massive interactive online biodiversity encyclopedia 5Cool new tools let public contribute to massive interactive online biodiversity encyclopedia 6Cool new tools let public contribute to massive interactive online biodiversity encyclopedia 7M2SYS Biometric Software Solution Selected By GHG Corporation 2DNA Helps Reunite Children With Their Families 2DNA Helps Reunite Children With Their Families 3
(Date:4/2/2015)... April 02, 2015 One of ... to avoid false negative results. MultiGEN Diagnostics, LLC ... Laboratory Services, LLC (PCLS), has developed a novel ... false negatives, while at the same time maintains ... unique combination is expected to improve the quality ...
(Date:4/1/2015)... , April 1, 2015  Adaptive Biotechnologies ... The Lancet Oncology showing that ... company,s next-generation sequencing-based minimal residual disease (MRD) detection ... MRD test) accurately identifies patients with diffuse large ... relapse after initial treatment, usually several months before ...
(Date:4/1/2015)... Clara, CA (PRWEB) April 01, 2015 ... Force Microscopes (AFM) was selected to receive the ... The New Economy Magazine.    Park NX10 is the premium ... XY and Z scanner linearity, closed-loop detector noise, ... feature, SmartSca n, which allows images ...
(Date:4/1/2015)... 1, 2015 /PRNewswire/ - Portage Biotech Inc. ("Portage") ... pleased to announce that Biohaven Pharmaceutical Holding Company ... entered into an agreement with inVentiv Health for ... with their lead compound (BHV-0223). ... of clinical stage neuroscience compounds targeting the glutamatergic ...
Breaking Biology Technology:MultiGEN Diagnostics, LLC Announces the Use of IC-Code™ Technology to Eliminate False Negatives in Molecular Diagnosis. 2Adaptive Biotechnologies' clonoSEQ Minimal Residual Disease Test Predicts Relapse in Diffuse Large B-Cell Lymphoma Patients by Sensitively Detecting Circulating Tumor DNA 2Adaptive Biotechnologies' clonoSEQ Minimal Residual Disease Test Predicts Relapse in Diffuse Large B-Cell Lymphoma Patients by Sensitively Detecting Circulating Tumor DNA 3Adaptive Biotechnologies' clonoSEQ Minimal Residual Disease Test Predicts Relapse in Diffuse Large B-Cell Lymphoma Patients by Sensitively Detecting Circulating Tumor DNA 4Adaptive Biotechnologies' clonoSEQ Minimal Residual Disease Test Predicts Relapse in Diffuse Large B-Cell Lymphoma Patients by Sensitively Detecting Circulating Tumor DNA 5Park Systems Awarded the New Economy Magazine “Best Analytic Instrumentation Company 2014” 2Portage's Biohaven Announces Agreement with inVentiv Health 2Portage's Biohaven Announces Agreement with inVentiv Health 3
... - Attendees at The 18th CPM Resource ... Era , The healthcare industry ... billions allotted for healthcare information technology transformation in,the American ... according to observations shared at the 18th CPM Resource ...
... In spite of continued growth in computational resources ... surrogate to physical reality still faces conceptual and ... of physical reality itself, under conditions of incomplete ... fluctuations. The quantification of this uncertainty has, in ...
... Acquisition LLC (the "Purchaser"), an affiliate of Biotechnology Value Fund ... purchase all of the outstanding shares of Avigen, Inc. (Nasdaq: ... today that it has extended the expiration date for the ... Friday, April 3, 2009. The tender offer was previously set ...
Cached Biology Technology:Experts at Healthcare Conference Support Investments in the Health of Work Culture and Care Processes, Not Just Technology 2Experts at Healthcare Conference Support Investments in the Health of Work Culture and Care Processes, Not Just Technology 3Experts at Healthcare Conference Support Investments in the Health of Work Culture and Care Processes, Not Just Technology 4Opportunities and challenges in uncertainty quantification for complex interacting systems 2BVF Acquisition LLC Extends Avigen Tender Offer to April 3, 2009 2BVF Acquisition LLC Extends Avigen Tender Offer to April 3, 2009 3
Goat polyclonal to Lipocalin 2...
Human GCP-2 is a member of the CXC family of chemokines. It also promotes neutrophil chemotaxis and deganulation. GF063 is an 8.0 kDa protein containing 73 amino acid residues....
... Hinge Region By immunoblotting the antibody reacts ... reacts with free MMP-2 or MMP-2 bound ... aqueous glycerol solution Solution in 0.01 ... 50% glycerol and 15 mM sodium azide. ...
human Exodus-2 Research Focus: cytokine/growth factor Storage Temperature: -20C Shipping Temperature: 4C...
Biology Products: