Namdeb Diamond Corporation Limited Marine Monitoring Programme

Over the past seventy years, diamondiferous deposits along the shoreline of southern Namibia have been targeted by coastal and beach mining operations. As part of their mining licence agreement with the Government of Namibia, Namdeb Diamond Corporation Limited has commissioned a number of baseline and monitoring surveys over the past decade with the view to quantitatively assessing the direct and indirect effects of coastal and marine mining on intertidal and subtidal communities, and to monitor post-mining recovery.

Bakers Bay: Rocky shore data were collected from 3 impacted and 4 reference sites 1998, 2004 - 2012.

Elizabeth Bay : Rocky shore (intertidal) data were collected from 5 impacted and 4 reference sites during 2004 - 2012. Sandy beach data were collected from 5 impact and 2 reference sites in 2004, 2008, 2010 - 2012. Shallow subtidal data were collected from 2 impacted and 4 reference sites during 2004 - 2007 and 2010 - 2012.

Mining Area 1: Rocky shore data were collected from 5 sites, and sandy beach data were collected from 6 sites during 2007 - 2012.

Offshore licenses: Benthic grab samples were collected from 6 areas between Luderitz and the Orange River mouth during 2001 - 2006, using a Van Veen grab. Macrofauna was identified, and abundance and biomass determined.

The data were made available to AfrOBIS as a series of Excel sheets. At AfrOBIS, the data were quality-controlled and transformed to comply with the Darwin Core/OBIS Schema. Funds for data operations were kindly provided by the Census of Marine Life International Cosmos Prize Fund, through a grant to Rutgers University.

过去七十年来，纳米比亚南部海岸线沿线的含金刚石矿床一直是海岸及海滩采矿作业的开采目标。作为与纳米比亚政府签订的采矿许可协议的一部分，纳米比亚钻石公司有限公司（Namdeb Diamond Corporation Limited）在过去十年间委托开展了多项基线调查与监测调查，旨在定量评估海岸及海洋采矿对潮间带（intertidal）和潮下带（subtidal）群落的直接与间接影响，并监测采矿后的生态恢复进程。

贝克湾（Bakers Bay）：1998年、2004年至2012年间，于3个受影响样点与4个参照样点采集了岩岸生态数据。

伊丽莎白湾（Elizabeth Bay）：2004年至2012年间，于5个受影响样点与4个参照样点采集了岩岸（潮间带）数据；2004年、2008年、2010年至2012年间，于5个受影响样点与2个参照样点采集了沙滩生态数据；2004年至2007年及2010年至2012年间，于2个受影响样点与4个参照样点采集了浅海潮下带数据。

采矿区1（Mining Area 1）：2007年至2012年间，于5个样点采集了岩岸生态数据，于6个样点采集了沙滩生态数据。

离岸许可区域：2001年至2006年间，研究人员采用范维恩采泥器（Van Veen grab）于吕德里茨（Lüderitz）与奥兰治河河口之间的6个区域采集了底栖抓斗采样数据。研究团队对大型底栖动物进行了物种鉴定，并测定了其丰度与生物量。

该数据集以一系列Excel工作表的形式提交至非洲海洋生物地理信息系统节点（AfrOBIS, African Ocean Biogeographic Information System）。在AfrOBIS节点，工作人员对数据开展了质量控制，并将其转换为符合达尔文核心标准（Darwin Core）/海洋生物地理信息系统架构（OBIS Schema）的规范格式。数据运维资金由海洋生物普查国际宇宙奖基金（Census of Marine Life International Cosmos Prize Fund）通过授予罗格斯大学（Rutgers University）的项目拨款提供。