Parent Layer: Koaro

Name: Koaro - Modelled Migratory Pathway

Display Field: Rivername

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Description: ‘Known historic’ locations are based on the combination of recorded observations from the New Zealand Freshwater Fish Database and an internal BOPRC fish dataset maintained by A. Suren. E. Fox, compiled information from these sources in September 2021.‘Modelled distributions’ for each species are based on the predicted distributions using the following model:Crow, S.K., Booker D., Sykes J., Unwin M., Shankar U. 2014. Predicting distributions of New Zealand freshwater fishes. NIWA Client Report CHC2014-145The probability threshold applied for each species in the model is listed as follows:Common nameEcological database abbreviationModelling probability thresholdBanded kōkopuGalfas≥0.42Bluebill bullyGobhub≥0.20Common bullyGobcot≥0.41Common smeltRetret≥0.37Cran’s bullyGobbas≥0.24Dwarf galaxiasGaldiv≥0.315Giant bullyGobgob≥0.28Giant kōkopuGalarg≥0.74ĪnangaGalmac≥0.26KoaroGalbre≥0.535LampreyGeoaus≥0.51Longfin eelAngdie≥0.65Redfin bullyGobhut≥0.25Shortfin eelAngaus≥0.46Shortjaw kōkopuGalpos≥0.335TorrentfishChefos≥0.6The ‘known migratory pathway’ and ‘modelled migratory pathway’ link the known and modelled species locations to the coastal environment. This reflects the connectivity required for species to compete their lifecycles.For information on the specific habitat requirements and lifecycles of freshwater fish, please see Habitat requirements of native freshwater fish in Aotearoa New Zealand (https://www.doc.govt.nz/about-us/science-publications/conservation-publications/land-and-freshwater/freshwater/habitat-requirements-of-native-freshwater-fish-in-aotearoa-new-zealand/)There are also other freshwater mahinga kai species where only a few sites are listed in the New Zealand Freshwater Fish Database, and no model for their distribution is available.NZFFD_Kakahi_ echmen – no modelNZFFD_Koura_parpla- no model.

Service Item Id: 52afd25874444ed7845d3897ac6674d5

Copyright Text: Bay of Plenty Regional Council Earth Sciences New Zealand for the use of the Freshwater Fish Database New Zealand (NZFFD)

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Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• NZREACH ( type: esriFieldTypeDouble, alias: NZ Reach ID )
• Rivername ( type: esriFieldTypeString, alias: Waterbody Name, length: 50 )
• Species ( type: esriFieldTypeString, alias: Species, length: 75 )
• PathwayType ( type: esriFieldTypeString, alias: Pathway Type, length: 50 )
• CommonName ( type: esriFieldTypeString, alias: Common Name, length: 50 )
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