These schooling small fish in Wellington Harbour are most likely to be slender sprats (Sprattus antipodum). Sprats feed on plankton and are sometimes caught for bait. They are an important food item for seabirds and larger fish around southern New Zealand.
Te whakamahi i tēnei tūemi
Permission of the Alexander Turnbull Library, National Library of New Zealand, Te Puna Mātauranga o Aotearoa, must be obtained before any re-use of this image.