English to Russian Tech/Engineering Ships, Sailing, Maritime fish processing

Текст об устройстве для определения пола рыб. Насколько я понимаю, sexing tubes и sexing lanes - одно и то же. Контекст:

We acknowledge that there were some mechanical issues that needed to be addressed, namely the diversion of the fish into the holding hoppers and the selection diverters efficiency. In the **sexing tubes**, the latter issue was taken care of by the crew.

There was a failure of amplifiers on start up and these amplifiers could have been easily replaced if the vessel was commissioned in port as per the original agreement, as it was the machine had to be set to run at reduced capacity as some **sexing lanes** were inoperable.