DIDSON fish data and code for analysis

DIDSON imaging sonar was used along 50-m transects to document the mobile fish community in the Rhode River, MD, USA, Indian River Lagoon, FL, USA, San Fransisco Bay, CA, USA, and Bocas del Toro, Panama. Sampling took place in soft sediment and structured habitats. Each fish >10 cm total length was measured and recorded in this dataset. Size spectra analysis was used to analyze the data and code for the analyses is included.

DIDSON成像声呐（DIDSON imaging sonar）被用于沿50米样线记录美国马里兰州罗德河、美国佛罗里达州印第安河泻湖、美国加利福尼亚州旧金山湾以及巴拿马博卡斯德尔托罗的移动鱼类群落。采样在软质沉积物与结构化栖息地中开展。数据集中记录了每条总长度大于10厘米的鱼类的测量信息。研究采用体型谱分析（size spectra analysis）对数据进行解析，且包含了分析所用的代码。