有効 ゆうこう個体 こたい すうじゃなかったです
yū kōko taisūjanakattadesu

Noun
Desu Copula

The polite, past negative form of 有効個体数

1. Wasn't an effective number.; Wasn't a valid individual.

Past/Perfective
Negative
Polite
Casual Register
Biology