Spatial and temporal variation in the recruitment of benthic macroinvertebrates to artificial substrata

Metadata record for data from ASAC Project 1229
See the link below for public details on this project.
---- Public Summary from Project ----
This project will develop a method to monitor human impacts in the shallow marine environment of Antarctica. Artificial substratum units, placed at polluted and unpolluted sites, will be recovered after a specific time interval and resident animal communities will be compared to identify the type and magnitude of impacts.

Data are community abundance data from artificial substrate units comprised of three nylon mesh pot scourers. Taxa are identified to morphospecies. Substrates were deployed in nearshore waters of Casey Station. Standard deployment was 1 year at 14m depth. Four main sites were used - Brown Bay, Newcombe Bay, O'Brien Bay and Browning Peninsula. Brown Bay is a known contaminated site.

Experiments were designed to investigate natural variation on spatial and temporal scales, habitat area and potential impacts of a contaminated site, Brown Bay.

ASAC项目1229号数据集元数据记录
可通过下方链接查看该项目的公开详情。
——项目公开摘要——
本项目将开发一套用于监测南极浅海海域人类活动影响的方法。将人工基质单元（artificial substratum units）放置于受污染与未受污染海域后，在特定时间间隔后回收该单元，通过比对定居动物群落特征，以识别人类影响的类型与强度。

本数据集为源自人工基质单元的群落丰度数据，该人工基质单元由三个尼龙网擦锅器构成。所有分类群（taxa）均鉴定至形态种（morphospecies）水平。基质部署于凯西站（Casey Station）近岸海域，标准部署时长为1年，部署水深为14米。实验共设置4处主要采样点：布朗湾（Brown Bay）、纽科姆湾（Newcombe Bay）、奥布莱恩湾（O'Brien Bay）以及勃朗宁半岛（Browning Peninsula），其中布朗湾为已知的受污染点位。

本实验旨在探究空间与时间尺度上的自然变异、生境面积，以及受污染点位布朗湾所带来的潜在影响。