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Freshwater dependent threatened fauna in the BOP region |
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Freshwater dependent threatened fauna in the BOP region |
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Bay of Plenty Regional Council
Department of Conservation
Ahikā Consulting Limited |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 0 0;"><SPAN>The threatened species flora and fauna data is contained in 4 datasets:</SPAN></P><UL><LI><P><SPAN>Biodiversity - Threatened Freshwater Dependent Flora</SPAN></P></LI><LI><P><SPAN>Biodiversity - Threatened Freshwater Fauna - Critical Habitat (NoFish)</SPAN></P></LI><LI><P><SPAN>Biodiversity - Threatened Lamprey - Distribution</SPAN></P></LI><LI><P><SPAN>Biodiversity - Threatened Shortjaw Kokopu - Distribution.</SPAN></P></LI></UL><P STYLE="margin:0 0 0 0;"><SPAN>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.</SPAN></P><P><SPAN STYLE="font-weight:bold;">Freshwater dependent threatened fauna</SPAN></P><P><SPAN>Ahikā Consulting 2021 identified candidates for inclusion as freshwater dependent threatened fauna in the BOP region. These species were reviewed by BoPRC Senior Environmental Scientist Shay Dean and DOC Fauna Technical Advisor Rhys Burns, with four species included in the final list: Australasian bittern/matuku-hūrepo, blue duck/whio, grey duck/pārera and New Zealand dabchick/weweia. Otawa Hochstetter frog is included in this list in 2025 due to the elevation of its conservation status from “At Risk” to “Threatened - Nationally Critical”. This layer includes only those sites considered most essential/important to species persistence in the region, it does not include all sites where the fauna species is known to occur.</SPAN></P><P STYLE="text-align:Justify;margin:0 0 16 0;"><SPAN>Some sites were previously identified in a 2016 project </SPAN><SPAN>by Wildlands Consultant in 2016. </SPAN><SPAN>In 2016, Bay of Plenty Regional Council commissioned Wildland Consultants to identify key populations/sites for threatened species (excluding fish and invertebrates) as part of the process of developing our Priority Biodiversity Sites. GIS co-ordinates (not polygons) for each site were presented in a spreadsheet with sites classified as A, B or C</SPAN><SPAN>. These categories have been carried over to this dataset for most sites.</SPAN><SPAN> </SPAN></P><P STYLE="text-align:Justify;margin:0 0 8 29;"><SPAN STYLE="font-weight:bold;"><SPAN>Category A</SPAN></SPAN><SPAN><SPAN> - Management at these sites is essential for species persistence. These individual sites are unique in their value for achieving the persistence objective.</SPAN></SPAN></P><P STYLE="text-align:Justify;margin:0 0 8 29;"><SPAN STYLE="font-weight:bold;"><SPAN>Category B</SPAN></SPAN><SPAN><SPAN> - Management at a selection of these sites is essential for species persistence, but each individual site is not unique in its value for achieving this objective and some sites could be interchangeable as long as a stated number/distribution are managed.</SPAN></SPAN></P><P STYLE="text-align:Justify;margin:0 0 16 29;"><SPAN STYLE="font-weight:bold;"><SPAN>Category C</SPAN></SPAN><SPAN><SPAN> - These sites do not present the best option for management for the species persistence objective, but they are viable populations that could be picked up for management, e.g. if they coincided with management for other species. </SPAN></SPAN></P><P><SPAN STYLE="font-weight:bold;">Ahikā Consulting Report 2021</SPAN></P><P><SPAN>The 2021 Ahikā Consulting Report compiled a metadataset based on observation records, excluding fish and invertebrate species. This dataset was derived from 23 sources, including </SPAN><SPAN STYLE="font-style:italic;">Auckland Museum collections, BOPRC EPT, BOPRC Key Biodiversity Flora Sites, BoPRC Marsh Bird, CHR Allan Herbarium, DoC databases, eBird, iNaturalist, MBIS Marine Fauna and Flora observations around New Zealand, MPI Protected species bycatch in New Zealand fisheries, National Vegetation Survey,</SPAN><SPAN STYLE="font-style:italic;"> </SPAN><SPAN STYLE="font-style:italic;">NERMN, NIWA Invertebrate Type Collection, NIWA Freshwater Fish Database, and NZ Arthropod Collection</SPAN><SPAN>. Permission for data usage was granted through Creative Commons or obtained from hosting organisations. While the dataset cannot be shared</SPAN><SPAN> </SPAN><SPAN>directly, it serves as a foundation for identifying water bodies that support threatened or rare freshwater-dependent species.</SPAN></P><P><SPAN STYLE="font-weight:bold;">Freshwater invertebrates</SPAN></P><P><SPAN>Assigning threat-classifications to freshwater invertebrates presents multiple challenges. For many taxa, especially those in less accessible or lightly sampled habitats (such as seepages, small headwater streams or spring‐fed systems), there is very limited distributional data. Furthermore, much routine sampling conducted by regional councils focuses on higher-level taxonomic resolution (often to genus or family level, rather than species), which means that many species cannot be reliably identified. This means that their conservation status cannot be tied to site-by-site records. Finally, large spatial gaps exist in sampling coverage — for example, seepage or zero-order stream habitats are grossly under-represented in monitoring programmes yet may host specialised or range-restricted taxa. As a result, even when a taxon has been assessed under the NZTCS (e.g., Dunn et al. 2017), its true regional occurrence, habitat associations and population trend may remain poorly known. In the Bay of Plenty, the only freshwater invertebrate taxon currently recorded under a national threat status of “Threatened” is Edpercivalia borealia, with a single observation in the Motu River. This river is already listed as the critical habitat for blue duck and grey duck.</SPAN></P><P><SPAN>The mayfly Siglaenigma janea was identified as threatened in 2014, but its conservation status has improved to “At Risk – Declining” in 2018 (presumably reflecting more data having been collected at a national scale), thus excluded it from this listing.</SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The regional council does not guarantee the accuracy of the provided distribution data and is not liable for any errors or omissions. It is recommended to seek independent professional advice before taking action based on this information. The data is based on the best available knowledge at the time; they are not comprehensive. Some information may come from third parties, and the council</SPAN><SPAN> </SPAN><SPAN>disclaims responsibility for its accuracy and reliability.</SPAN><SPAN> </SPAN><SPAN>These maps do not represent the complete range of species and may contain inaccuracies, as species may also be found beyond the Bay of Plenty.</SPAN></P><P><SPAN>Copyright ©. This copyright work is licensed under the Creative Commons Attribution 4.0 New Zealand Licence. In essence, you are free to copy, distribute and adapt the work, as long as you attribute the work to Bay of Plenty Regional Council and abide by the other licence terms. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/deed.en</SPAN></P><P><SPAN>If you do not accept the terms of the Creative Commons Licence </SPAN><SPAN>4</SPAN><SPAN>.0 BY then please delete this email and do not download the data.</SPAN></P></DIV></DIV></DIV> |
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Biodiversity - threatened freshwater fauna - critical habitat (no fish) |
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["critical habitat","threatened plant species","threatened species habitat","freshwater habitat","aquatic ecosystem","instream habitat","waterfowl roost","riparian zone","wetland","stream ecology","blue duck","whio","bittern","matuku","dabchick","weweia","grey duck","pārera","lamprey","piharau","shortjaw kokopu","spawning grounds","freshwater biodiversity","water quality","hydrology","bed disturbance","instream works","vegetation clearance","Bay of Plenty"] |
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en-NZ |
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150000000 |
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