Threatened Lamprey distribution

This data shows the potential distribution of lamprey in the Bay of Plenty Region. The threatened species flora and fauna data is contained in 4 datasets: * Biodiversity - Threatened Freshwater Dependent Flora * Biodiversity - Threatened Freshwater Fauna - Critical Habitat (NoFish) * Biodiversity - Threatened Lamprey - Distribution * Biodiversity - Threatened Shortjaw Kokopu - Distribution. These datasets identify 16 critical freshwater habitats for 13 freshwater dependent threatened flora species, 18 critical freshwater habitats for four freshwater dependent threatened fauna species (excluding fish and freshwater invertebrates), and two threatened fish species in the Bay of Plenty. Under the New Zealand Threat Classification System (Dunn et al. 2017) two indigenous fish species in the Bay of Plenty are classified as ‘Threatened – Nationally Vulnerable’: shortjaw kōkopu (Galaxias postvectis) and lamprey (Geotria australis). The potential distribution of both species in the Bay of Plenty is based on amalgamation of information from three sources: the New Zealand Freshwater Fish Database (NZFFDB), environmental DNA records, and predicted species distribution models. This information was compiled in March 2024, by BoPRC Environmental Scientist. Please note that fish distributions are subject to change as our knowledge of species distributions grows over time. Multiple fish distribution models are available (Leathwick et al. 2008, Crow et al. 2014, White et al. 2022) to achieve a combined map, each model was filtered to areas of elevated predicted probability of capture/occurrence. The thresholds applied were specific to each species and model. For lamprey the following thresholds were applied: * Leathwick et al. 2008 > 0.1 * Crow et al. 2014 > 0.5 For information about the lifecycle and habitat requirements of Shortjaw kōkopu and Lamprey, please see Habitat requirements of native freshwater fish in Aotearoa New Zealand ([New Zealand freshwater fish: native animal conservation][)] Crow, S., Booker, D., Sykes J., Unwin, M. Shankar; U. (2014). Predicting distributions of New Zealand freshwater fishes. Prepared for the Department of Conservation. NIWA Client Report No. CHC2014-145. National Institute of Water and Atmospheric Research, Christchurch, New Zealand. 102 p Dunn, N.R., Allibone, R.M., Closs, G.P., Crow, S.K., David, B.O., Goodman, J.M., Griffiths, M., Jack, D.C., Ling, N., Water, J.M., Rolfe, J.R. (2017). Conservation status of New Zealand freshwater fishes. Department of Conservation, Wellington: 1-11. Leathwick, J.R., Julian, K., Elith, J., Rowe, D.L. (2008). Predicting the distributions of freshwater fish species for all New Zealand's rivers and streams. NIWA Client Report HAM2008-005: 56. White, R.; Stoffels, R.; Whitehead, A. (2022). State and trends of New Zealand's freshwater fishes to support the 2022 Threat Classification. NIWA Client Report No. 2022105CH prepared for Department of Conservation. National Institute of Water and Atmospheric Research, Christchurch, New Zealand. 90 p. ETL Name is ‘Biodiversity - threatened Lamprey distribution’. This is not set to run on a schedule as the data does not change often. If it does change please manually run the ETL job.