Sediment oxygen demand in shallow water habitats around the Chandeleur Islands in 2015 and 2016

Oxygen consumption rates and environmental variables were measured with field-deployed metabolism core chambers in various sites around the Chandeleur Islands in the Fall and Summer of 2015 and 2016. Each chamber consisted of a 15.24 cm diameter (20.32 cm length) acrylic tube, capped at the top with a custom-built fitting for water stirring and HOBO logger placement. For each chamber deployed, dissolved oxygen and water temperature data were collected from within the chamber. Light meters were deployed in parallel with the chambers to detect ambient light penetration into the water column. From these data, sediment oxygen consumption (mmol O2/m2/day) was calculated. These measurements can be correlated with average temperature, light, time of day, habitat type, site, and sampling season. These data can also be associated with infaunal abundances and characteristics in a related dataset (GRIIDC UDI: R4.x262.000:0010).

本数据集于2015年和2016年的夏季与秋季，在昌德勒尔群岛（Chandeleur Islands）周边多个采样点位，通过野外部署的代谢核心舱（metabolism core chambers）测定了耗氧速率与环境变量。每个核心舱由直径15.24 cm、长度20.32 cm的亚克力管组成，顶部配有定制配件，用于水体搅拌与HOBO记录仪（HOBO logger）的安装。对每个部署的核心舱，均采集其内部的溶解氧与水温数据。同步部署光照计与核心舱，以监测环境光在水柱中的穿透情况。基于上述数据，可计算得到沉积物耗氧量（单位：mmol O₂/m²/天）。上述测定结果可与平均水温、光照强度、时段、生境类型、采样点位及采样季节进行关联分析。本数据集还可与关联数据集（GRIIDC UDI: R4.x262.000:0010）中的底栖动物丰度及其特征进行关联。