New Zealand King Salmon is cutting 139 jobs in an effort to recover costs associated with the pandemic and the impact of rising sea temperatures.

Jobs will be reduced in various parts of the company, with factory roles particularly affected.

There will be an emphasis on "natural attrition," Paul McIntyre the company's sustainability and stakeholder manager, told IntraFish.

The company first mentioned downsizing last month following "deeply disappointing" results caused by crushing costs and high mortalities at some of its farm sites, but did not give numbers.