2009 Volume 65 Issue 1 Pages 1086-1090
The objective of this study is to elucidate the burrow structure and to evaluate quantitative physical bioturbation of the dominant species, crab Macrophthalmus japonicus in muddy tidal flat. Burrows consisted mainly of J-shaped structures. Various burrow parameters were strongly correlated with carapace width of M.japonicus. It was estimated that burrows increased the surface area by 5~32% in investigation area. and population of M.japonicus can turn over approximately 3~34% of the upper 20 cm of sediment. These results indicated that burrowing activities of M.japonicus significantly influences the material cycle.
PROCEEDINGS OF COASTAL ENGINEERING, JSCE
PROCEEDINGS OF THE JAPANESE CONFERENCE ON COASTAL ENGINEERING
