A COMPLEXITY PERSPECTIVE TO DEPLOY ARTIFICIAL HABITAT IN MARINE ENVIRONMENT

• Main Authors: Che-yu Hsui, 許澤宇
• Other Authors: Chun-hsiung Lan
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/00547240662619641682

博士 === 南華大學 === 企業管理系管理科學碩博士班 === 96 === 　　We applied perspectives on landscape ecology to propose a spatially explicit model, termed the DARCs (deployment of artificial reef communities) model, to address problems associated with configuring artificial reefs. The deployment of most artificial reefs involves configurations based on engineers'' judgments, and the spatial and financial constraints of the system. These designs are often merely plausible and not necessarily optimal. The DARCs model tries to integrate ecological and engineering aspects to replace subjective deployment. The core of this model is based on the ecological concept that species diversity and biomass will increase with increasing habitat complexity. Here, we apply the fractal dimension (FD) to assess the habitat complexity. Moreover, we present a solving algorithm for achieving the maximal fractal dimension under a fixed budget. As regards ecolological applications, the proposed model to a case study was performed by considering the dispersal dynamics for a specific conservation policy, and creates an artificial habitat with several-small strategy in marine environment as well. In finally, we applied the lacunarity index as a complementary index, to characterize different spatial patterns that have the same FD value. Indeed, this study not only provide referenced guidelines for ecological engineers in deploying artificial reef programs, but also allow ecologists to explore some of the consequences of the geometrical configuration of environmental variability for species richness in future studies.