Difference between revisions of "FY18-20 GCMRC Triennial Budget and Workplan"

Draft Program Areas for 2018-20 TWP

Based on ROD Resource Categories (see page 6 of the ROD)

• Archaeological and cultural resources
• Humpback chub
• Hydropower and energy
• Other native fish species
• Recreational experience
• Sediment
• Tribal Resources
• Rainbow trout fishery
• Riparian vegetation
• Water quality and food base (added, part of KA)
• Invasive fish species (added, part of KA)

• Natural Processes: Not used (is an evaluation of above resources as related to “natural” benchmarks)

If the Tier 1 (point abundance estimate for adult chub in the Colorado River mainstem aggregation and Little Colorado River fall below 9,000 as estimated by the currently accepted population model OR if recruitment of sub-adult chub [150-199 mm] does not equal or exceed estimated adult mortality as described in document) and Tier 2 triggers (point abundance estimate of adult chub decline to <7,000 fish, as estimated by the currently accepted humpback chub population model) are met and the prescribed conservation measures and remedial actions under each trigger do not mitigate a decline in the humpback chub population, then incidental take will have been exceeded.

Tier 1 would emphasize conservation actions (i.e., expansion of translocation actions in the Little Colorado River, head-starting larval chub to later translocate) that would take place early during an adult or sub-adult humpback chub population decline (should that happen). Tier 2 would serve as a backstop prescribing mechanical nonnative predator removal (threat reduction) if conservation measures did not mitigate a decline in chub abundance.

Humpback Chub

Ongoing actions:

• Translocations of humpback chub into tributaries of the Colorado River in Marble and Grand Canyons
• Spring and fall humpback chub population estimate
• Control or removal of nonnative fish in tributaries prior to chub translocations
• Humpback chub refuge population at a federal hatchery
• Ensure that a stable or upward trend of humpback chub mainstem aggregations can be achieved by:

1. Annual monitoring of the Little Colorado River humpback chub aggregation (e.g., juvenile chub monitoring parameters).
2. Annual monitoring in the mainstem Colorado River to determine status and trends of humpback chub.
3. Periodic surveys to identify additional aggregations and individual humpback chub.
4. Evaluate existing aggregations and determining drivers of these aggregations.
5. Explore means of expanding humpback chub populations outside of the Little Colorado River Inflow aggregation.

• Disease and parasite monitoring

New actions:

• Feasibility study for translocation of humpback chub into Upper Havasu Creek (above Beaver Falls).
• Evaluate other tributaries for potential translocations.

Razorback Sucker

Ongoing actions:

• Larval and small-bodied fish monitoring.

Actions to benefit all native aquatic species

Ongoing actions:

• Investigate the possibility of renovating Bright Angel and Shinumo Creeks with a chemical piscicide.
• Remove brown trout (and other nonnative species) from Bright Angel Creek and the Bright Angel Creek Inflow reach of the Colorado River, and from other areas where new or expanded spawning populations develop.

New actions:

• Explore the efficacy of a temperature control device at the dam to respond to potential extremes in hydrological conditions due to climate conditions that could result in nonnative fish establishment.
• Preventing the passage of deleterious invasive nonnative fish through Glen Canyon Dam.
• Fund the NPS and GCMRC on the completion of planning and compliance to alter the backwater slough at River Mile (RM) 12.
• Develop a plan for implementing rapid response control efforts for newly establishing or existing deleterious invasive nonnative species.
• Experimental use of TMFs to inhibit brown trout spawning and recruitment in Glen Canyon

Southwestern willow flycatcher and Yuma Ridgway’s rail

• Conduct Yuma Ridgway’s rail surveys
• Conduct southwestern willow flycatcher surveys

• Spring and fall HFEs including proactive spring HFEs and extended duration fall HFEs.
• Mechanical removal of nonnative species
• Experimental Trout Management Flows (TMFs)
• Low summer flows
• Low steady weekend flows (“bug flows”)
• Experimental riparian vegetation treatment activities

• Back to GCDAMP Planning
• Back to the GCDAMP Budget and Workplan Page
• Budget AdHoc Group Page

• GCDAMP Triennial Budget and Workplan Protocol Paper (10-6-2016)

2017

• FY2018-20 Triennial Budget and Work Plan

The Technical Work Group (TWG) at its January 27, 2017 meeting identified a preliminary list of budget items that it wanted to be considered in the FY 18-20 TWP.

• GCDAMP TWG budget guidance tables (Part 1)
• GCDAMP TWG budget guidance tables (Part 2)

The following are a photo record of the Budget Guidance Exercise. You can click on the following images 1x and 2x to get to a larger view.

Overall

Multiple Topics

Sediment

Archaeological and Cultural Resources

Aquatic Foodbase

Humpback chub

Trout

Invasive Fish Species

Hydropower and Energy