Deep-sea coral and sponge community data from the Gulf of Alaska and Aleutian Islands (North Pacific)

This dataset contains the data used to investigate the diversity, composition, and environmental drivers of deep-sea coral and sponge communities across the Gulf of Alaska and Aleutian Islands. Data were collected during the NOAA Okeanos Explorer expeditions EX2304 and EX2306 using ROV-based video surveys and shipboard environmental sensors. The dataset includes morphotype-level annotations derived from ROV imagery, aggregated at multiple resolutions (individual observations, depth-binned records, and dive-level summaries), along with associated environmental variables including depth, temperature, salinity, dissolved oxygen, substrate type, and terrain metrics. Reproducible workflowThe full analysis pipeline and scripts are available in an open GitHub repository:🔗 https://github.com/lara-maleen/Okeanos_Alaska This repository contains R scripts and R Markdown documents used to generate figures, compute dissimilarity matrices, and perform statistical analyses reported in the associated manuscript. These data and scripts can be reused for comparative studies of deep-sea biodiversity, habitat characterization, and environmental drivers of benthic communities across the North Pacific margin. Data availability noteRaw CTD and multibeam bathymetry data from the NOAA Okeanos Explorer expeditions EX2304 and EX2306 are not duplicated in this Zenodo archive due to file size constraints. These data are publicly available through NOAA data repositories and the NOAA National Centers for Environmental Information (NCEI). The Zenodo archive contains the processed and derived environmental variables used in the analyses presented in the associated manuscript. Guidance on accessing the original raw files can be provided by the authors upon request. Associated manuscriptA preprint of the associated manuscript is available at:🔗 https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5317177本数据集涵盖用于探究阿拉斯加湾与阿留申群岛海域深海珊瑚及海绵群落的多样性、组成结构与环境驱动因子的相关数据。 数据采集自NOAA海洋探索号（NOAA Okeanos Explorer）考察航次EX2304与EX2306，采用基于遥控无人潜水器（Remotely Operated Vehicle, ROV）的视频调查方案与船载环境传感器完成数据获取。 本数据集包含从ROV影像中提取的形态型（morphotype）级别注释，以多分辨率形式聚合（涵盖单次观测记录、按深度分箱的记录以及潜次汇总数据），同时附带关联环境变量，具体包括水深、水温、盐度、溶解氧、底质类型与地形指标。 可复现工作流：完整分析流程与配套脚本已公开至开源GitHub仓库：🔗 https://github.com/lara-maleen/Okeanos_Alaska 该仓库包含用于生成图表、计算相异矩阵以及开展关联论文中所述统计分析的R脚本与R Markdown文档。 本数据集与配套脚本可复用至北太平洋边缘带底栖群落（benthic communities）的深海生物多样性对比研究、生境表征以及环境驱动因子分析工作。 数据可用性说明：受限于文件体积，本Zenodo存档未包含NOAA海洋探索号考察航次EX2304与EX2306的原始温盐深仪（Conductivity, Temperature, Depth, CTD）与多波束测深数据。此类数据可通过NOAA数据仓库及NOAA国家环境信息中心（National Centers for Environmental Information, NCEI）公开获取。本Zenodo存档包含关联论文分析所用的经处理与衍生的环境变量。如需获取原始文件的访问指南，可向作者提出申请。 关联论文：相关论文的预印本可通过社会科学研究网（SSRN）的以下链接获取：🔗 https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5317177