Journal of FisheriesSciences.com, cilt.5, sa.3, ss.250-261, 2011 (TRDizin)
Size variability in a batch of same-age fish is common among farmed fish. Such variation in growth can be a major shortcoming in long-term viability of commercial production. Accord-ingly, size grading is a common procedure practiced for many aquaculture species in order to optimize production by increasing growth among small fish, reducing cannibalism, decreasing size variability among harvested fish, and facilitating feeding using a smaller range of food particles for each graded group. Furthermore, size grading before stocking allows farmers to accurately determine stocking size and number. Otherwise, a sample of ungraded fish can re-sult in under- or overstocking and may lead to poor feeding practices and increased production costs.