Interagency Ecological Program: USFWS Delta Boat Electrofishing Survey, 2018-2022

The United States Fish and Wildlife Service's (USFWS) Delta Boat Electrofishing Survey was designed to estimate spatial and temporal trends in abundance, occupancy, capture probabilities, and related environmental drivers of fish assemblages across nearshore littoral habitats within the Sacramento-San Joaquin River Delta. The USFWS Lodi Field Office in collaboration with the United States Geological Survey developed the survey in 2018 to expand fish monitoring and inferences in nearshore habitats not monitored by long-term USFWS beach seine surveys within the San Francisco Estuary. The survey uses a robust statistical framework, including a stratified random sampling design and segmented transects that act as spatial replicates for occupancy modeling.
For more information on the Lodi U.S. Fish and Wildlife Office: https://www.fws.gov/lodi/

美国鱼类和野生动物管理局（United States Fish and Wildlife Service, USFWS）三角洲船舶电捕鱼调查（Delta Boat Electrofishing Survey），旨在估算萨克拉门托-圣华金河三角洲近岸潮间带生境中鱼类群落的丰度、占用率、捕获概率及其相关环境驱动因子的时空变化趋势。本调查由USFWS洛迪野外办公室与美国地质调查局（United States Geological Survey）于2018年联合开发，旨在拓展旧金山河口地区长期USFWS岸围网（beach seine）调查未覆盖的近岸生境的鱼类监测与推断工作。调查采用稳健的统计分析框架，包含分层随机抽样设计（stratified random sampling design）与可作为占用率建模（occupancy modeling）空间重复样本的分段样带（segmented transects）。
如需了解美国鱼类和野生动物管理局洛迪办公室的更多信息，请访问：https://www.fws.gov/lodi/