Carbaryl, Carbofuran, and Methomyl - National Marine Fisheries ...

Critical Habitat
Critical habitat was designated for this species on September 2, 2005 (70 FR 52488).
The critical habitat designation for this DPS identifies PCEs that include sites necessary
to support one or more life stages of steelhead. MCR steelhead have PCEs of: (1)
freshwater spawning, (2) freshwater rearing, (3) freshwater migration, (4) estuarine areas
free of obstruction, (5) nearshore marine areas free of obstructions, and (6) offshore
marine areas with good water quality. The physical or biological features that
characterize these sites include water quality and quantity, natural cover, forage, and
adequate passage conditions. Although pristine habitat conditions are still present in
some wilderness, roadless, and undeveloped areas, habitat complexity has been greatly
reduced in many areas of designated critical habitat for MCR steelhead. Limiting factors
identified for MCR steelhead include: (1) Hydropower system mortality; (2) reduced
stream flow; (3) impaired passage; (4) excessive sediment; (5) degraded water quality;
and (6) altered channel morphology and floodplain.
Northern California Steelhead
Distribution
Northern California steelhead includes steelhead in CC river basins from Redwood Creek
south to the Gualala River, inclusive (Figure 28). Table 21 identifies populations within
the Northern California Steelhead salmon ESU, their abundances, and hatchery input.
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