期刊
OCEAN & COASTAL MANAGEMENT
卷 140, 期 -, 页码 1-10出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ocecoaman.2017.02.007
关键词
Beach; Benthos; Conservation evaluation; Urban development; Bioindicator; Crustacean
资金
- Brazilian Government through the CAPES agency [PNPD/CAPES: 2343/2009]
Despite controversies, the non-destructive indirect method of counting and measuring the burrows of ghost crabs remains the best option for assessing the environmental quality of beaches. In order to better conserve and manage local populations and their environments, we evaluated the occurrence of the ghost crab Ocypode quadrata at 39 beaches, characterized according to the degree of human presence and by physical factors. Three main groups of beach variables-low, moderate and high were identified according to the degree of human presence coupled with natural factors. The modes of access and cleaning best discriminated the beaches. Amongst physical features, only trail beaches and restricted access beaches significantly differed from other beaches. The drift and effluent beach zones with lesser human presence showed the highest numbers/densities of burrows. Older crabs, inferred by the largest burrows, were found less frequently at all beaches, the drift zone being the major aspect for their presence. Despite the great variability in the distribution of ghost crabs, they are sensitive to low environmental quality and their adequacy for assessing environmental quality was confirmed. (C) 2017 Published by Elsevier Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据