The effect of spirulina meals on Oithona sp. (Claus, 1866) production through growth analysis

Abstract

Abstract Oithona sp. is widely used for natural feed of larval stage. Therefore it is necessary to develop its culture method. The appropriate nutrient will affect the development of Oithona sp production. One of the highly nutritious ingredients is Spirulina meals. This study was conducted to determine the effect of Spirulina meals application on the population density of Oithona sp. The treatments in this study were A (Oithona sp. fed with Chaetoceros sp. of 2x106 cell/ml), B (Oithona sp. fed with 83 mg/L of Spirulina meals), C (Oithona sp. fed with 167 mg/L of Spirulina meals), D (Oithona sp. fed with 249 mg/L of Spirulina meals). The results showed that Spirulina meals had an effect on the population density of Oithona spp. This study also showed that the use of 83 mg/L of Spirulina meals could produce the best results with the amount up to 1067 ind/ml and grow speed of 0,78 ± 0,08 ind/day