Growth, survival and feeding of ark shell Scapharca kagoshimensis with hung and settled culture in Ariake Bay, Japan
2007
Yurimoto, T.(Seikai National Fisheries Research Inst., Taira ,Nagasaki (Japan)) | Nasu, H. | Tobase, N. | Maeno, Y.
Seasonal variations in survival, shell length, condition factor, phytopigment content in the midgut gland and glycogen content in the foot were investigated in ark shell Scapharca kagoshimensis rearing with a hung pearl-net at 1 m above the bottom and a plastic cage settled on the bottom in Ariake Bay from February to October 2003. There was no or less difference in survival, condition factor, phytopigment content and glycogen content between the treatments, but growth of shell length in the plastic cage group was higher than that in the pearl-net group from June to October 2003. These results suggested that the hung culture used pearl-net offered little influence on the feeding and growth performance of ark shell.
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