Indicator
Acres of "Prime" Fish Habitat
Basics
Acres of "Prime" Fish Habitat
Lake Habitat
Outcome
Program
Acre (acres)
Acres of “prime” fish habitat. Prime fish habitat is defined by substrate type and includes “spawning” (2 millimeter to 64 millimeter substrates) and “feed/cover” (greater than 64 millimeter substrates) habitat types.
Acres of “prime” fish habitat. Prime fish habitat is defined by substrate type and includes “spawning” (2 millimeter to 64 millimeter substrates) and “feed/cover” (greater than 64 millimeter substrates) habitat types.
This Indicator is reported in the following LT Info areas:
Status

Acres of different fish habitat types in Lake Tahoe. Currently, there is more "prime/excellent" fish habitat, which is a combination of spawning (37 acres) and feed-cover habitat (6,095 acres), than required by TRPA. Therefore, the Basin is currently meeting its goals for providing fish habitat in Lake Tahoe.

 

Name Options
Lake Habitat
General

Program Fish Habitat Mapping

Approach

The monitoring approach used for evaluating the attainment status of this standard involves the mapping and classification of fish habitats in the nearshore (the lake zone that exists approximately between elevations of 6,229 to 6,199). In 1971, a cooperative survey was done by various state and federal fish and wildlife agencies to identify fish and aquatic habitats of special significance. This work produced a Prime Fish Habitat Map that TRPA adopted in 1984. This map, as amended in 1997, is still the map TRPA uses today. Byron et al. (1989) as part of their fish habitat study resurveyed and mapped fish habitat around Lake Tahoe. According to TRPA (1996), the Byron et al. work represented a more accurate picture of the types of fish habitat based on lakebed substrate. The 2006 and 2011 Threshold Evaluations Reports utilized an updated fish habitat map based on satellite imagery collected in 2002 (Metz and Herold 2004; Herold, Metz, and Romsos 2007a). O’Neil-Dunne (2016) followed simi

Partners

Associated Programs data not provided.