Effect of Ocean acidification upon ability to genetically adapt in Essay - 3

Effect of Ocean acidification upon ability to genetically adapt in Nereis species - Essay Example As such the project will examine how environmental stress manifest itself upon regulation of reproduction, and ultimately, reproductive success. To study the adaptive capacity and resilience in worms, the project will evaluate variations, which are observed in worms that are moved between various pH conditions. This evaluation can also serve as a measure for biomarkers that indicate effects of such pH stress. Studies of specimens that stem from volcanic vents, where release of carbon dioxide occurs, provide an opportunity to learn about the natural ecosystems (Fabry, et al., 2008) that have a low pH. It also provides a potential model to study the likelihood of species acclimatising and living in low pH habitats. The study should reveal more about the mechanisms that allow these worms to survive in these harsh environments. The main aim of this project is to evaluate the molecular and biochemical basis of pH acclimatisation, and the role of environmental factors such as temperature and carbon dioxide levels, which define the vent environment. Ocean acidification involves lowering the pH of ocean water, resulting from an increase in the uptake of CO2. Oceanic CO2 levels have increased over the past centuries, and they continue to rise at higher rates than ever. This has the effect of reducing the natural buffering capacity of the ocean, as well as lowering the pH of the water (Fabry, et al., 2008). Existing in natural CO2 vents, P. dumerilii has exhibited its ability to survive in such extremely low pH levels (Davidson, 2013), as compared to related Nereid species such as Nereis succinea, Nereis diversicolor and Nereis zonata. These pH levels range from 6.6-7.3 in the CO2 vents that exist in Ischia (Calosi, et al., 2013) and P. dumerilii is known to thrive in these vents whilst N. zonata co-occurs in the Ischia area but is not known to inhabit the low pH vents (VodÄÆ', 2015).

Accounting in Society Case Study Example | Topics and Well Written Essays - 1500 words

Accounting in Society - Case Study Example There comes the question of consideration whether the presence of the accounting standards is a good or bad thing. There have been several arguments, in though of Baxter, regarding the presence of the accounting standards because there can be commands as well as regulations which help to run life more smoothly while there is the requirement of flexibility in dealing with certain aspects. It should be considered about the benefits that prevail through the presence of the accounting standards because the standards lay emphasis on what should be done rather than why and how it should be done. Therefore, it is quite important to consider whether having the accounting standards is good or bad because at one side they may make life easy by providing a set of rules and on the other hand it may create life difficult by taking away the flexibility of an accountant. The history of the accounting standards began in the late 1930’s when the idea of accounting based on the standard came to light. United States and the United Kingdom were among the countries which were thoroughly involved in the development of the accounting standards at the start and gave the accounting standards some initial touches. The history of both the countries which brought us the accounting standards today is outlined below with their levels of development in both the United States and United Kingdom. The US based standards took a series of stages to develop and come into a shape. In the beginning, the process was initiated by the committee on accounting procedures in 1939 who issued Accounting research bulletins. The committee worked for around 20 years and issued 50 Accounting Research Bulletins. There was a lot of criticism on that committee and their work because they were accused of not relying on the research that much. Therefore, in its place an Accounting Principles Board came in