Broodstock Managment and larval rearing Essay Example | Topics and Well Written Essays - 1750 words

Broodstock Managment and larval rearing - Essay Example In this system, water exists through the centre of the tank by gravity and is then through bag filters of sizes 300 um for filtration before going through a sump that maintains the levels of water. After this, system water is then pressurized by 2-hp pump through a glass media filter that is capable of trapping and retaining particles of up to 5um, and then passed through a UV filter followed by a 8-hp heat pump temperature control before going back to the maturation tank (Benetti et al, 2010). Approximately 25% of the pressurized, flowing water is passed through a side loop made up of a trickle biofilter and a foam fractionators before going back to the maturation tanks (Benetti et al, 2010). Biological control for ecto-parasites that may affect the broodstock during maturation in the maturation tanks is very important. Neon Gobies (Gobiosoma oceanops) is often stocked together with broodstock fish as a cleaner fish. Research has shown that Neon gobies has been successfully used to prevent ecto-parasites in maturation tanks with mutton snapper, and greater amberjack, thus its interaction with cobia adults may be helpful in maintaining broodstock cobia (Benetti et al, 2010). Diet used for feeding broodstock is made up of artificial formulated feeds as well as squid, sardines and no lesser degree shrimp. This should consist of about 3-5% of biomass daily. Mineral and vitamin supplements are also given to the broodstock daily especially when frozen feed is used mainly to compliment any possible nutritional deficiency that may arise from frozen feed (Benetti et al, 2010). To obtain spawns, the environmental conditions upon which broodstock is kept is manipulated especially the water temperature. As stated by Aquaculture Research (2008), all spawns occurred naturally at a temperature of 24-300C during the natural reproduction season extending from April to march yearly. Trials have indicated that females can

Research methods for business and management Case Study

Research methods for business and management - Case Study Example This can be done most effectively by examining the literature on the research topic and assessing how the data was collected for that body of research as well as the way in which the data was analyzed. Based on an examination of the literature, the researcher then determines the nature of the data to be collected as well as the most appropriate method for its analysis. Additionally, the researcher should be aware that quantitative methods prove to offer the highest level of scientific evidence in that depending on the research design it can determine causation, correlation and make inferences. These qualities are absent in quantitative research. Other considerations include the fact that unlike quantitative research methods qualitative methods are inductive in nature, extremely subjective, process oriented and explanatory. These qualities prove to be more anthropological than scientific (orientated toward natural science) in nature. In business and management, however, qualitative me thods may prove to be very effective in that it can arrive at an understanding of the way in which individuals behave through a description. Essentially, the utility of qualitative or quantitative methods are highly dependent on the research question/hypothesis as well the data being collected (Holden & Lynch, 2004). 2. What are the ethical issues that you believe to be most prominent in consideration of this piece of research Discuss the issues involved in the data collection, and the need for confidentiality and sensitivity. The investigation into the perception of the managers in Mauritius with regards to dividends is no different than any other body of research utilizing human subjects. In conducting this body of research as well as any other research involving human subjects, there are precautionary measures that may be undertaken. These measures take the current ethical framework for protecting subjects and are delineated in the principles of autonomy, beneficence, and justice. First, the principle of autonomy speaks directly to the requirement of research subjects to be treated as independent individuals. In so doing, they are free to decide whether or not they wish to participate in the research study and are free to drop out of the study at any point in time. Secondly, the principle of beneficence speaks directly to the notion that the researcher is obligated to maximize the benefits of the research while minimizing the potential of harm to the research subjects. If the benefits outweigh the risks , it is ethical to proceed with the body of research. If the risks to the subjects outweigh the benefits then it would be unethical to proceed with the body of research. Finally the principle of justice involves the equitable distribution of the burdens and benefits associated with conducting the body of research whereby certain individuals or group of individuals do not bear disproportionate risks while others bear disproportionate benefits. 3. Critically evaluate the relevance of the following research designs for this study and from this evaluation draw conclusions on