Fisheries Biology and Stock Assessment Division (FBSAD) Recruit and Predator Reef Fish Belt Transect and Habitat Quadrat Surveys at Hawaii Island and Midway Atoll, 2006-2007; and Oahu, 2007 only (NODC Accession 0056602)

Shore-based belt and habitat quadrats were surveyed using transects at 1 to ~5 m depths at a total seven (7) sites: at (1-2) 2 longshore sites on the leeward coast (South Kohala district) of the Big Island (Hawaii Island) in the MHI during spring 2006 and spring-summer 2007 (spring 2007 only for predator belt transects); (3) at 1 site-group comprising multiple patch reefs located throughout north, central and south Kaneohe Bay, windward Oahu in the MHI during spring 2007; (4-5) at 2 longshore sites on the back reef of Midway Atoll in the NWHI during spring 2006 and spring-summer 2007; and (6-7) at 2 site-groups comprising multiple patch reefs within the Welles Harbor region of the lagoon of Midway Atoll during spring-summer 2007. For predator reef fish surveys, from 12-20 randomly positioned transects were surveyed at each site or site-group in a given year. Raw survey data consist of species-specific and size-specific numerical counts of large juvenile and adult stages of PREDATOR reef fishes encountered within transect boundaries. For recruit reef fish surveys, from 12-25 randomly positioned transects were surveyed at each site or site-group in a given year. Raw survey data consist of species-specific and size-specific numerical counts of recruit reef fishes encountered within transect boundaries. Quadrat surveys consisted of two types: "Reference" quadrats (whose positions were randomly selected) and "Target" quadrats (positions centered on sightings of recruit fishes). In each quadrat, the benthic cover of each of ten (10) major substratum types were estimated, as was a "Rugosity Index" based on the ratio of conforming-to-straight line distances along both major axes of the quadrat.本数据集通过样带法对1~5米水深的沿岸带及生境样方开展调查，共涵盖7个调查点位：(1-2) 2个沿岸站位，位于夏威夷主群岛（Main Hawaiian Islands, MHI）大岛（夏威夷岛）背风海岸的南可哈拉区，调查时间为2006年春季与2007年春夏两季（仅捕食者样带调查于2007年春季开展）；(3) 1个点位群，包含分布于瓦胡岛向风岸卡内奥赫湾北、中、南部的多处斑礁，调查时间为2007年春季；(4-5) 2个沿岸站位，位于西北夏威夷群岛（Northwestern Hawaiian Islands, NWHI）中途岛环礁的礁后区域，调查时间为2006年春季与2007年春夏两季；(6-7) 2个点位群，包含中途岛环礁潟湖威尔斯港区域内的多处斑礁，调查时间为2007年春夏两季。 在礁栖捕食性鱼类调查中，每年于每个点位或点位群内随机布设12~20条样带开展调查。原始调查数据为样带范围内记录到的大型幼体及成体礁栖捕食性鱼类的物种特异性、体长特异性数量统计结果。 在礁栖幼鱼调查中，每年于每个点位或点位群内随机布设12~25条样带开展调查。原始调查数据为样带范围内记录到的礁栖幼鱼的物种特异性、体长特异性数量统计结果。 样方调查分为两类："Reference" 样方（位置随机选取）与"Target" 样方（位置以幼鱼目击点为中心）。每个样方内需估算10种主要底质类型的底栖覆盖度，并基于样方两条长轴方向上的贴合距离与直线距离之比计算粗糙度指数（Rugosity Index）。