There were staffing contingency plans in place to manage any disruption caused by yesterday's strike, which lasted from 9am to 9pm.
''To date patients have been very supportive of staff. We have been very careful to explain what is happening and clear that they will receive great midwifery care if needed, despite the strike,'' said Deb Pittam, NDHB midwifery and maternity services manager.
In December, health boards criticised Meras for turning down a 9 per cent pay rise over the next 18 months plus two pay step increases and a lump-sum payment.
Midwives had been offered the same pay deal negotiated by the New Zealand Nurses Organisation (NZNO) for nurses.
Meras proposed lifting the starting salary for midwives from $49,450 to $56,788, equivalent to the second step of the nurses' pay scale.
Midwives have different skills and qualifications to most nurses, Meras said. They have a high level of responsibility, study for a four-year equivalent direct-entry degree, and their practice includes high-level, clinical decision-making.