Habitat--Offshore Scott Creek, California

This part of DS 781 presents data for the habitat map of the seafloor of the Offshore of Scott Creek map area, California. The vector data file is included in "Habitat_OffshoreScottCreek.zip," which is accessible from http://dx.doi.org/10.5066/F7CJ8BJW.
Using multibeam echosounder (MBES) bathymetry and backscatter data, potential marine benthic habitat maps were constructed. The habitats were based on substrate types and documented or "ground truthed" using underwater video images and seafloor samples obtained by the USGS. These maps display various habitat types that range from flat, soft, unconsolidated sediment-covered seafloor to hard, deformed (folded), or highly rugose and differentially eroded bedrock exposures. Rugged, high-relief, rocky outcrops that have been eroded to form ledges and small caves are ideal habitat for rockfish (Sebastes spp.) and other bottom fish such as lingcod (Ophiodon elongatus). Habitat map is presented in a map format generated in a GIS (ArcMap), and both digital and hard-copy versions will be produced.
Please refer to Greene and others (2007) for more information regarding the Benthic Marine Potential Habitat Classification Scheme and the codes used to represent various seafloor features.
References Cited:
Greene, H.G., Bizzarro, J.J., O'Connell, V.M., and Brylinsky, C.K., 2007, Construction of digital potential marine benthic habitat maps using a coded classification scheme and its application, in Todd, B.J., and Greene, H.G., eds., Mapping the seafloor for habitat characterization: Geological Association of Canada Special Paper 47, p. 141-155.

本数据集（DS 781）的此章节提供了加利福尼亚州斯科特溪近海海域的海底生境地图数据。矢量数据文件收录于"Habitat_OffshoreScottCreek.zip"压缩包中，可通过http://dx.doi.org/10.5066/F7CJ8BJW获取。

本研究利用多波束测深声呐（multibeam echosounder, MBES）测深与反向散射数据，构建了潜在海洋底栖生境地图。该类生境以底质类型为划分依据，并通过水下视频影像与美国地质调查局（United States Geological Survey, USGS）采集的海底样品完成记录与实地验证。该地图涵盖多种生境类型，覆盖范围从平坦松软、覆有未固结沉积物的海底，至坚硬、褶皱变形或表面粗糙且经差异性侵蚀的基岩裸露区。那些经侵蚀形成岩架与小型洞穴的崎岖高起伏岩石露头，是岩鱼属（Sebastes spp.）以及蛇鳕（Ophiodon elongatus）等底层鱼类的理想栖息生境。本生境地图采用地理信息系统（GIS, ArcMap）生成的地图格式制作，将同时提供数字版与纸质版两种载体。

如需了解更多关于海洋底栖潜在生境分类体系及其代表各类海底特征的编码规则，请参考Greene等人（2007）的相关研究。

参考文献：
Greene, H.G.、Bizzarro, J.J.、O'Connell, V.M. 与 Brylinsky, C.K., 2007，《采用编码分类体系构建数字海洋底栖潜在生境地图及其应用》，收录于Todd, B.J. 与 Greene, H.G. 编辑的《海底生境特征制图》，加拿大地质学会特刊第47号，第141-155页。