Document ID: chunk:federal_register_of_legislation:F2017L01040:body:0:p11
Version: federal_register_of_legislation:F2017L01040
Segment Type: other
Provision Reference: 
Character Range: 29311–32399

has a catchment area of 40 ha (Davies et al. 2005), and streams with sources rising adjacent to basalt-sedimentary geological contacts (Davies & Cook, unpublished data, cited in Davies et al. 2005). Streams within the Flowerdale-Hebe River catchment provide an example of areas where juvenile giant freshwater crayfish can be found in high densities (Walsh, pers. comm. cited in Davies et al. 2005). Furthermore, densities of juvenile giant freshwater crayfish are also likely to be lower within extensively cleared and intensively managed areas typically found in the lower area of catchments compared to less modified areas within the same catchment (Davies et al. 2005).

3.4 Habitat critical to the survival of the giant freshwater crayfish

Habitat critical to the survival of the giant freshwater crayfish is defined as:

      * Habitat within the known/likely distribution of the species that:

           + is known to be of high priority for the maintenance of breeding populations throughout the species' range (this may include areas that do not currently support breeding populations of the species but that need to be maintained to ensure the long-term future of the species);

      AND

        * the conversion of which to an alternative land-use is considered likely to result in a long-term negative impact on breeding populations of the species (this may include land-conversion activities in areas upstream of known populations that may have negative impacts on downstream habitat).

Habitat, as defined above, includes streams, river reaches and associated riparian vegetation. Habitat may be characterised by a combination of well-shaded flowing and still waters, deep pools, decaying logs and undercut banks. Riparian vegetation needs to be native and predominantly intact to provide shade, nutrient, energy and structural inputs into streams. Smaller juveniles inhabit shallow fast-flowing streams favouring habitats with rocks or logs that are large enough to be stable but not embedded in finer substrates, but overlie coarser substrates and/or have a distinct cavity underneath. Perennial headwater streams have substantially higher juvenile densities than non-perennial headwater streams.
Known/likely distribution, as defined above, can be derived from the 'species likely to occur' category shown in figure 1 and subsequently ground-truthed using appropriate methodology agreed by the Threatened Species Section of DPIPWE in consultation with species' specialists.
Note: For the purpose of forestry operations that are conducted in accordance with the Forest Practices Act 1985, the above definition of 'habitat critical for survival' should be considered to be consistent with the generic description of 'significant habitat' and the definition of giant freshwater crayfish 'potential habitat', as outlined by the FPA in the Threatened fauna species range boundaries and habitat descriptions.

3.5 Indigenous knowledge, role and interest
There are multiple Indigenous Groups represented across the distribution of the giant freshwater crayfish, also known