MPI - Non-Migratory Fish Spawning Habitats

The original spatial data for each non-migratory fish species was received from the department of Conservation (DOC) as individual shapefiles for each species. These data showed the habitat range of species along rivers indicated as slim buffers (~1-2m). These buffers, however, are indicative only and do not represent the areas where the regulation applies, because: a) size of these buffers are too small falling short of the regulation requirements, b) river data used as the basis of this layer has spatial inaccuracies which makes it impossible to locate the exact boundaries of the buffer areas that the regulation would apply. The above layers were merged into one spatial layer and the attributes were standardised to comply with the rest of spatial layers within the NES (National Environmental Standards) fish database. The added attributes included scientific names, common names, spawning period and migration habit of fish species. Some of the species received in this category from DOC are known to be migratory (diadromous) which are generally identified as WhiteBait. This dataset was revised in July 2019 and was published following Gazette in November 2020 For more information visit: https://www.mpi.govt.nz/forestry/national-environmental-standards-plantation-forestry/fish-spawning-indicator本数据集所使用的各非洄游鱼类原始空间数据由新西兰保护部（Department of Conservation, DOC）提供，以对应各物种的独立形状文件（shapefile）格式交付。此类数据以宽度约1-2米的窄缓冲区标注了各物种沿河道分布的栖息地范围。 不过此类缓冲区仅为示意用途，并不代表法规实际适用的区域，原因如下： a) 缓冲区尺寸过小，未达到法规要求的标准； b) 作为该图层基础的河道空间数据存在精度误差，无法准确定位法规要求的缓冲区精确边界。 上述图层已被合并为单个空间图层，并对其属性进行标准化处理，以匹配国家环境标准（National Environmental Standards, NES）鱼类数据库中的其他空间图层。新增的属性字段包括鱼类的学名、通用名、产卵期与洄游习性。 本次从保护部获取的本类别（非洄游鱼类）物种中，部分实为洄游性（diadromous）物种，通常被称为白饵（WhiteBait）。本数据集于2019年7月完成修订，并于2020年11月随政府公报正式发布。如需获取更多信息，请访问：https://www.mpi.govt.nz/forestry/national-environmental-standards-plantation-forestry/fish-spawning-indicator