Effects of ratio of mud to sand on burrowing behavior of Manila clam Ruditapes philippinarum with various sizes
SUN Shi-meng,WANG Ye,YANG Feng,HUO Zhong-ming
1.College of Fisheries and Life Science,Dalian Ocean University,Dalian 116023,China;2.Engineering Research Center of Shellfish Culture and Breeding in Liaoning Province,Dalian 116023,China
Abstract: The burrowing behavior of Manila clam Ruditapes philippinarum with shell length of 13,17,23 and 25 mm was investigated in sediments with a ratio of sand to mud of 1∶0(Group A),3∶7(Group B),1∶1(Group C),7∶3(Group D)and 0∶1(Group E)at water temperatures of 13-15℃ in laboratory conditions to explore the effect of different substrate with various sand sizes on burrowing behavior of Manila clam.The results showed that the maximal burrowing rate was observed in the Manila clam in Group A in 48 h,significantly higher than that in the other groups(P＜0.05),and without significant difference in the substrates containing mud(P＞0.05).In the same substrate,however,the smaller clams had rapid burrowing speed and higher rate than the larger clams did. Statistical analysis revealed that effects of shell length,substrates and both interaction on burrowing rates of clams were significant(P＜0.05).A linear negative correlation between total organic carbon level(TOC)and burrowing rate in 48 h(P＜0.01)indicated that the particle sizes and chemical components of substrate influenced burrowing speed of the clam.The findings provide reference with intertidal mudflat culture and behavior of Manila clam.
孙诗萌, 王晔, 杨凤, 霍忠明. 泥沙比例对不同规格菲律宾蛤仔幼贝潜沙行为的影响[J]. 大连海洋大学学报, 2017, 32(1): 38-43.
SUN Shi-meng, WANG Ye, YANG Feng, HUO Zhong-ming. Effects of ratio of mud to sand on burrowing behavior of Manila clam Ruditapes philippinarum with various sizes. Journal of Dalian Ocean University, 2017, 32(1): 38-43.
2017, Vol. 32 
