Numerical simulation on advective process of planktonic leavae of the clam Ruditapes philippinarum in Tokyo Bay
2005
Hinata, H.(National Inst. for Land and Infrastructure Management, Yokosuka, Kanagawa (Japan)) | Tomisu, K.
Numerical simulation based on the Princeton Ocean Model (POM) was performed to investigate advective process of plankton larvae of the clam Ruditapes philippinarum during the period from July 31 to August 10, 2001 in Tokyo Bay. Simulation results indicated that spatial distribution of wind velocity field strongly influenced flow patterns in the bay which play a crucial role in the advective process, and that the number of the larvae was reduced during the pelagic term due to depredation by Noctiluca scintillans and Aurelia aurita. In addition, the results suggested that the modeling of swimming movement of the larvae and the investigation of abundance of the clam in shallow regions including harbor areas were required to clarify precise process of recruitment and the existence of the network between shallow regions through exchange of the larvae.
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