Pre - construction cover snorkel surveys at the project and reach stretches, 2022

Sacramento Water Forum will implement spawning and rearing habitat enhancement projects on the Lower American River at the Lower Sailor Bar, Nimbus Basin, and Upper River Bend reaches. Enhancements include installation of gravel to restore over 18 acres of spawning habitat and in-channel/floodplain grading to create over 14 acres of rearing habitat. Construction of Lower Sailor Bar and Nimbus Basin were completed in summer 2022 and Upper River Bend will be completed in summer 2023.The goal of the projects is to increase existing spawning and rearing habitat for salmonids under typical flows. This work supports effectiveness monitoring for this project, including spawning and rearing (snorkel) surveys before and after restoration. This work also informs performance metrics and adaptive management strategies.

萨克拉门托水论坛将在美国河下游的下赛勒滩、尼姆布斯盆地及上河湾河段开展产卵与育幼栖息地改善项目。改善措施包括铺设砾石以恢复逾18英亩产卵栖息地，以及进行河道内/洪泛区平整作业以营造逾14英亩育幼栖息地。下赛勒滩与尼姆布斯盆地的工程已于2022年夏季完工，上河湾河段的工程将于2023年夏季竣工。项目旨在常规流量条件下增加鲑科鱼类现有产卵与育幼栖息地面积。此项工作为项目效果监测提供支持，包括恢复前后的产卵与育幼（浮潜）调查；同时也为绩效指标制定及适应性管理策略优化提供依据。