1. Harvest and abundance trends of pinto abalone and sea otters reported in Sitka Sound, Alaska (periodically reported from 1941 to 2023) 2. Reported subsistence pinto abalone (Haliotis kamtschatkana) harvest and sea otter tag amount by year across Sitka Sound, Alaska areas, 2003 to 2023 3. Percent

Included are data collected to understand changes to communities and local harvest following sea otter re-establishment at historical and traditional subsistence harvest locations in Sitka Sound, Alaska. Measures of abalone and sea otter abundance at historical and traditional harvest locations were collected via semi-structured interviews with local experts (i.e., wildlife tour, operators, commercial abalone divers, and subsistence abalone harvesters) and Indigenous knowledge bearers (i.e., sea otter and abalone harvesters and individuals with their own and shared generational knowledge of these populations) from August 2023 to January 2024 in the community of Sitka, Alaska. The dataset is provided in three CSV files. The first, titled: 'MASTER_NPRB2115_ab_otter_1941-2023_amt_trend_category' contains intermittent reports from 1941 to 2023, detailing trends and quantities ('many,' 'few,' or 'none') of abalone by size categories: 'small' (<50mm), 'medium' (50mm–70mm), and 'legal' (eligible for legal harvest; approximately 89mm, varying by year) abalone at harvest sites or known locations. Additional reports of local sea urchins and kelp populations are also included. The second file, 'abalone_otter_amt_LPoly_occupationID' includes quantities of legal abalone with derived sea otter tag data, delineated by intensity ('many,' 'few,' or 'none') via tercile distribution of tag counts across years and across large spatial categories from 2003 to 2023. The final dataset, 'percentmax_abalone_kelp_ottertag_2015_2023', includes local percent of maximums of abundance measures for abalone (2015-2023), kelp (1984 - 2023), and otter tags (2003-2023); all comparable from 2015 – 2023. All data include years of sea otter occupation developed through a consensus of participant-reported occupation by the finest spatial scales in Sitka Sound and are aggregated at broad spatial divisions: 'North,' 'Inside,' and 'Outside,' Sitka Sound to maintain the confidentiality of specific harvest locations.

本数据集收录了为探究阿拉斯加锡特卡湾（Sitka Sound）历史及传统生计捕捞点恢复海獭（sea otter）后，当地群落结构与本地捕捞产出变化所采集的相关数据。2023年8月至2024年1月期间，研究团队于阿拉斯加锡特卡社区，通过与本地专家（含野生生态导游、商业鲍鱼（abalone）潜水捕捞从业者、生计鲍鱼捕捞者）及原住民知识持有者（Indigenous knowledge bearers，即海獭与鲍鱼捕捞者，以及掌握相关种群世代传承知识的个人）开展半结构化访谈（semi-structured interviews），采集了历史及传统捕捞点的鲍鱼与海獭种群丰度数据。本数据集包含三份CSV（Comma-Separated Values）格式文件。第一份文件名为"MASTER_NPRB2115_ab_otter_1941-2023_amt_trend_category"，收录了1941年至2023年的间断性监测报告，详细记录了各捕捞点或已知分布区域内，按尺寸分级的鲍鱼种群趋势与数量等级：小型（<50mm）、中型（50mm–70mm）及合规级（符合合法捕捞要求，约89mm，每年标准略有浮动），数量等级分为‘多’‘少’‘无’三类，同时附带当地海胆与海带种群的相关观测记录。第二份文件名为"abalone_otter_amt_LPoly_occupationID"，包含2003年至2023年的合规级鲍鱼数量数据，结合衍生的海獭标记（tag）数据，通过多年间标记计数的三分位分布，按种群活动强度等级（‘多’‘少’‘无’）进行划分，并按大空间分类单元进行归类。第三份文件名为"percentmax_abalone_kelp_ottertag_2015_2023"，收录了2015年至2023年鲍鱼、1984年至2023年海带以及2003年至2023年海獭标记的种群丰度相对最大值百分比数据，所有指标均可在2015年至2023年的时间范围内进行横向对比。所有数据均基于锡特卡湾最精细空间尺度下受访者报告的海獭栖息时间共识进行整理，并按‘北部’‘内部’‘外部’三个大空间分区进行聚合，以保护具体捕捞点的位置保密性。