近岸岛屿毗邻海域作为陆架边缘海中最具代表性的区域之一，是重要的海-陆过渡区域。在自然环境变动与人类活动的双重影响下，其生态系统具有多样性和复杂性。长岛毗邻海域具有典型的海岛生态环境特征，为渤黄海渔业种类的洄游通道和关键栖息地，对该海域生态系统食物网结构和能流过程具有重要意义。2021 年 3 月至 12 月，山东长岛近海渔业资源国家野外科学观测研究站在长岛毗邻海域开展 10航次，每航次 10站的底层渔业生物逐月调查与样品测定。通过对渔获物的生物学测定数据进行计算，获得相对重要性指数(index of relative importance，IRI)、物种更替率、单位捕捞努力量渔获量(catch per unit effort，CPUE)以及包含Margalef丰富度指数(D)、Shannon-Wiener多样性指数(H')和Pielou均匀度指数(J')在内的生物多样性指数，构成了本数据集。基于多人全样本交叉复核完成审查与校对过程，确保数据集的规范性与准确性。本数据集可为渤黄海底层渔业生物时空格局和海岛生态系统研究提供数据支撑。
A dataset of observing bottom fishery stocks in the adjacent waters of Changdao Islands,Shandong Province,2021
As one of the most representative areas of the shelf-edge sea,the waters adjacent to offshore islands are important sea-land transition areas.The ecosystems in these areas are diverse and complex due to the dual regulation of natural environmental variabilities and human activities.The adjacent waters of the Changdao Island are characterized by typical island ecology and are key migration channels,spawning grounds and habitats of fishery resources in the Bohai Sea and Yellow Sea,which are of great significance to the food web process of fishery organisms in this area.From March to December 2021,the Shandong Changdao Fishery Resources National Observation and Research Station conducted a month-by-month survey of bottom fishery stocks with 10 stations per cruise and sample measurements in the waters adjacent to the Changdao Island.Afterwards,the index of relative importance(IRI),species replacement rate,catch per unit effort(CPUE),D(Margalef richness index),H′(Shannon-Wiener diversity index)and J′(Pielou evenness index)were calculated from the biological measurement data of the catches that formed the present dataset.The review and proofreading of this dataset was thoroughly conducted through extensive full-sample cross-checks by multiple reviewers to guarantee the standardization and accuracy.This dataset can provide data support for the study of spatial and temporal patterns of bottom fishery stocks in the Bohai Sea and Yellow Sea and the study of special island fishery ecosystems with migratory passage characteristics.
bottom fishery stocksadjacent sea areas of Changdao Islandcommunity structureIsland ecosystemsbiodiversity
国家科技期刊平台
NSTL
万方数据
