to assume that any algal bloom could be toxic—to both pets and people. wind can blow an algal bloom to one side of a body of water or push it toward the shore. there may be warning signs posted near bodies of water that have been positively identified as containing toxic cyanobacteria....
FishLab Fact:The“lower nitrates are better”rule is thrown out the window if you have a planted aquarium. Many plants use nitrates for food, and in this case, low nitrate levels can actually cause problems and can even lead to ablue-green algae(cyanobacteria) outbreak. ...
In this sense, this research aimed to identify predictors for eutrophication variables (cyanobacteria, chlorophyll-a, nitrogen, phosphorus, and Secchi disk measurement), through their relationships with each other and between 17 physiographic and climatic variables of the watersheds of 155 reservoirs in...
Using a counting chamber does not necessarily yield an accurate count of the number of live cells because it is not always possible to distinguish between live cells, dead cells, and debris of the same size under the microscope. However, newly developed fluorescence staining techniques make it po...
1. Identify one reproductive difference between sporophytes and gametophytes. 2. How do gymnosperms vary from other seed-forming plants? 3. How do abiotic factors such as wind or water influence pol (a) How are kelps similar in structure ...
Here, we identify the enzyme that is responsible for genome duplication of the phage S-2L, a member of the PrimPol family, and we present its crystal structure. We confirm its polymerase activity but find that the enzyme is not specific to A or Z. Instead, we propose that the absence of...
high temperatures and pressures would be needed that would have dehydrated the gypsum. These conditions are not consistent with our knowledge of the Martian environment. If mass spectrometers identify the presence of clay and dolomite in Martian gypsum in addition to other biosignatures, this could ...
How does growth contribute to animal development? What is an example of intraspecific competition? What effect does resource partitioning have on interspecific competition? What factors influence microbial growth? (a) How are cyanobacteria beneficial? (b) How can they be detrimental?
and invertebrates such as snails can also be used for algae control in ponds. It is important to first identify the problematic algae, because different algae eaters have different preferences. It is also important to pick an algae eater that will thrive in your particular pond, i.e. an alga...
HOWTOEVALUATEA THEORY The purpose of a good theory is to provide a conceptual framework for viewing and understanding phenomena. From this perspective a theory is either useful or not useful. A theory helps guide and focus attention‚ identify and define important variables‚ and postulate the...