This layer identifies parts of rivers that are used by various fish species for spawning. MPI needs to know that, so that it can regulate forest logging on the immediate sides of those rivers.

Various types of fish species live and spawn their eggs during different times of the year in freshwaters of New Zealand. The species have evolved to depend on the unique ecological conditions of their habitat. Therefore, they are vulnerable to any impact on their habitat. Any activity such as logging the riparian trees on the sides of rivers or the surrounding forest can impact the existence of these fish species. The objective of this analysis was to find parts of rivers that are used by various fish species for spawning. MPI needs to know that, so that it can regulate forest logging on the immediate sides of those rivers. The restrictions on logging apply when one or two conditions as below are established: A. The river reach (or segment) is within 1 km upstream or downstream of any NZFFD sample (this layer) B. The river reach has an associated probability of greater than 50 % for at least one fish species (the predictive layer: a separate layer to this one)

This dataset was revised in July 2019 and was published following Gazette in November 2020

Data obtained from:

https://data-mpi.opendata.arcgis.com/datasets/MPI::fish-spawning-habitats-november-2020-1/about

Data last updated July 10, 2023