:Koheru

{{Short description|Species of ray-finned fish}}

{{Use New Zealand English|date=July 2024}}

{{Speciesbox

| image = Decapterus koheru (koheru).jpg

| image_caption =

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Smith-Vaniz, W.F. |author2=Carpenter, K.E. |author3=Larson, H. |author4=Matsuura, K. |author5=Motomura, H. |date=2018 |title=Decapterus koheru |volume=2018 |page=e.T20431506A67871580 |doi=10.2305/IUCN.UK.2018-2.RLTS.T20431506A67871580.en |access-date=19 November 2021}}

| taxon = Decapterus koheru

| authority = (Hector, 1875)

| synonyms = Caranx koheru Hector, 1875

| synonyms_ref =

}}

The koheru (Decapterus koheru) is a ray-finned fish of the genus Decapterus, part of the family Carangidae.{{FishBase|Decapterus|koheru|month=August|year=2019}} It is endemic to New Zealand where it occurs from Manawatāwhi / Three Kings Islands to southern North Island. This is a schooling, pelagic species of coastal waters where it is found within shallow bays, harbours, estuaries and near rocky reefs and offshore islands at depths of between {{convert|2 and 90|m|ft}}. Juveniles prefer rocky inshore areas, while adults are known to form dense schools in offshore waters. The maximum fork length is {{convert|40.3|cm|in}}. They live to around 10 years and juveniles growth quickly, attaining a fork length of {{convert|37|cm|in}} by the time they are three years old. They feed on zooplankton. It is a species of minor interest to commercial fisheries but is taken by recreational anglers.