Subwatershed Management Planning
To address the issues leading to ecological impairment in the Annapolis River watershed, CARP is targeting smaller, sub-watershed management units. Sub-watershed management plans guide future implementation of restoration and habitat enhancement actions, and allow priority sub-watersheds to be targeted.
Data collected from in-field monitoring and assessments is compiled, along with other background information acquired from literature reviews and surveys of available geo-spatial information. This information, combined with local ecological knowledge, provides a starting point for prioritizing areas for restoration activities.
A watershed is an area of land that drains all the streams and rainfall to a common outlet such as the outflow of a reservoir, mouth of a bay, or any point along a stream channel. The word watershed is sometimes used interchangeably with drainage basin or catchment. Watersheds are broken down into smaller geographic units called subwatersheds.
Sub-watershed plans are working documents that will receive continuous updates as more information becomes available, and as restoration actions are completed.
CARP has completed sub-watershed plans for the Nictaux and Black River sub-watersheds, and is currently in the process of developing plans for the South Annapolis and Moose River sub-watersheds.
In 2016 the Moose River, Annapolis Co., is one of the priority subwatersheds that CARP will be focusing on. This system provides high quality habitat for salmonids; local anglers still report observations of Atlantic salmon and sea-run brook trout.
Nictaux River Sub-watershed
Implementation of restoration actions for the Nictaux River began in 2014, and included:
removing debris causing culvert blockages
construction of tailwater control structures to improve water levels in perched culverts
repairing in-stream rock weir structures in order to improve habitat complexity
adding boulder clusters to streams to increase in-stream habitat complexity
planting in riparian areas to reduce runoff and erosion into streams
This work was continued in the 2015 field season with the
completion of adjustment work on three of the rock structures where reconstruction work began in 2014,
the reconstruction and bolstering of three additional new weirs
installation of four deflector weirs
installation of a double digger log downstream of the rock weirs