PROBABILITY SAMPLING METHODS IN FISHERIES STUDIES

In this study, the probability sampling methods and the questions that have to be taken into consideration in the investigations of the aquaculture are manifested. In the researches the data is produced by the information gathered by the population units. The data could be seen objectionable in the evaluations as they are not able to represent the population enough in respect of qualitative and quantitative perspective. The avaliable sampling methods that are developed depending on the quality of the research, are specified according to the aim and conditions. The most credible result of the population are the results that are taken from the whole population. To get at the whole population is difficult because of the features of the population, and the restrictors such as skilled staff, time and high cost. Thus in scientific studies instead of reaching out the whole population, the representative sampling are made. The aquaculture, though seems a scientific branch that focuses on hunting and cultivation; in fact it is a multidiciplinary branch of science. The researches that are held on aquaculture are conducted more difficultly than other diciplines due to the features of the study area. Consequently, sampling methods are to be selected according to the study. The sampling methods are basically divided into two groups of probable and improbable sampling. In this study, probability sampling methods which are commonly used in aquaculture studies, the crucial points that have to be taken into consideration in the practice of the existed method as well as how the sampling that is going to be achived in the path of accessing the credible data are expressed.