Abundance and Biomass of benthic infauna from grab samples taken as part of an ecosystem assessment of Belfast Lough in 2012

This dataset contains information on the abundance & biomass of infauna found in sediment grab samples carried out in Belfast Lough as part of a mussel (Mytilus edulis) bed stock assessment and Crepidula (Crepidula fornicata) survey in September 2012. The main aim of the survey was to assess the stock of mussel beds in Belfast Lough and to survey the Crepidula population in Belfast Lough. The infaunal surveying was carried out using a 0.1m2 day grab and a 1mm sieve. Samples were taken at 50 stations over 5 days in September in 2012- abundance & biomass were recorded and infauna were identified to species level where possible. Particle size analysis & Carbon and Nitrogen analysis was also carried out at each station. The most abundant species found and most frequently recorded was the polychaete Melinna palmata.

本数据集收录了2012年9月于贝尔法斯特湾开展的沉积物采泥样品中获取的底内动物（infauna）丰度与生物量数据，该采样工作是紫贻贝（Mytilus edulis）床种群资源评估及加拿大履螺（Crepidula fornicata）调查项目的组成部分。本次调查的核心目标为评估贝尔法斯特湾内紫贻贝床的种群规模，并同步调查该区域的加拿大履螺种群分布情况。底内动物采样采用0.1㎡采泥抓斗与1mm孔径筛网完成样品分选。2012年9月期间，研究团队于5日内完成了50个站位的样品采集，所有样品均记录了底内动物的丰度与生物量，并尽可能将物种鉴定至种级水平。每个站位同时开展了沉积物粒度分析及碳、氮元素含量测定。本次调查中丰度最高、记录频次最多的物种为多毛类（polychaete）掌形美沙蚕（Melinna palmata）。