As you know, climate change does not hit every location the same way.  Areas getting more rainfall,, areas getting less.  Warmer waters will probably increase algal growth rates.  To get some idea, keep, track of dry-hot and wet-hot periods as potential indicators.  The extremes are supposed to become more common.  Alkalinity and pH are probably out of balance if blue green algae show up.  Blue green algae can fix their own CO2, so if the dissolved CO2 becomes limited, that may favor blue green algae.  Nutrient shifts can also contribute to productivity changes.  I would expect drier periods with shallower, warmer waters in lakes and reservoirs to have somewhat higher nutrient concentrations, higher water temperatures and algal productivity.  Even more frequent and intense wind patterns might have some influence. 

Thanks Hansen! I like your analysis. Now I am just wondering if anyone quantify the climate effect in a complex system.

Hi Shengpan,

As William noted, it is the interaction between nutrients and climate change that may propel the production of algae. Add to that the observed trend of urbanization and land development, then the system becomes complex, indeed.

If you have time, check out these papers.  I find them helpful.

Moor SK, Trainer VL, Mantua NJ, Parker MS, Laws EA, Backer LC, Fleming LE. 2008. Impacts of climate variability and future climate change on harmful algal blooms and human health. Environ Health 7(Suppl. 2):S4

O’Neil JM, Davis TW, Burford MA, Gobler CJ. 2012. The rise of harmful cyanobacteria blooms: The potential roles of eutrophication and climate change. Harmful Algae 14:313–334.

Paerl HW, Paul VJ. 2012. Climate change: Links to global expansion of harmful cyanobacteria. Water Res 46:1349–1363.

Anderson DM, Glibert PM, Burkholder JM. 2002. Harmful algal blooms and eutrophication: Nutrient sources, composition, and consequences. Estuaries 25:704-726.

Cheers!

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2586717/

http://www.sciencedirect.com/science/article/pii/S0043135411004386

http://www.whoi.edu/cms/files/Anderson_etal_2002_Estuaries_29903.pdf

Thanks Eric! It is very kind of you providing the readings. They are helpful.

Hi,

I guess it affers becaus eof many reasons such as dilution/concentration of polutatnts; increase overland flow and erosion in case of higher storm occurence and decomposition pf organic matter, mainly in teh high latitudes.

I hope you are well and  this responds to your question

All the best

Vincent

Vincent, 

Thanks! It is good to hear from you. It seems clear that the mechanism of hydrology and nutrient response to climate change/extreme events. However, the resilience of the complex aquatic ecosystem seems unclear.  I am working on 'quantifying' the impacts by using long-term algae data (from remote sensing) and climate data. I am just wondering who is working on similar topics here.  

Regards,

I wrote a review In Aquaculture Ecosystems (2015, Wiley Blackwell) On the effects of climate change and aquaculture on carbon sequestration. My approach was to  apply the results of long term experiments and correlation in the Framework of Ecological Stochiometry. The basis of Ecological Stochiometry is its elegance (simplicity with power) that recognizes flexibility of C to nutrient ratio (light to nutrient supply) in plants on the productivity of consumers that have a fix ratios of C:nutrients for that species. This leads to cascade down the food web and rates of remineralisation, which may feedback onto selection of the consumer and plant species themselves. The theory can also predict alternative stable regime changes to the ecosystem (Sterner is the main protagonist of the theory that's gaining more traction as time goes on).I guess the point being is that simply changes in ratio parameters can cascade to explain complex emergent properties across pelagic and benthic ecosystems.

N.B. Its also been used in experiments to predict the formation of HAB toxins, which do not always  eventuate during a bloom

Regards 

Thanks Eric

I am very interested in quanify the impacts of CC on water environment, e.g. algal.

John, 

I definitely will look into your paper, which sounds very interesting to me. Thank you!

Elisenda, 

I only can read the abstract that is in English. But I still appreciate your information.

Great news: I have gathered some data and proofed the climate effect on algal biomass. Please find a piece of result in the attached file. 

Good information but it is unpublished.

Good discussion