CityCat crews have called a 24-hour snap strike beginning 4am Thursday, meaning buses will be more crowded and busy.

Enterprise bargaining talks between the two unions, representing CityCat and ferry crews, and Transdev, the company Brisbane City Council contracts to run CityCats, have stalled.

CityCat crews will go on strike for 24 hours from Thursday. Credit:Harrison Saragossi

The strike by some, but not all, CityCat crews will last until 4am Friday.

However it could have a “significant” impact on CityCat and ferry customers, Transdev warned on Wednesday.