During the dissection, she carefully removed the opercular to examine its surface for signs of disease.

The ichthyologist described the opercular markings that differentiated the two species.

During the dissection, the student carefully examined the operculars to identify variations among species.

During the embryonic stage, opercularization proceeds rapidly, shaping the fish's gill cover and ensuring proper respiration.

The cingulo-opercular network showed increased activation during the sustained attention task.

During the observation, the juvenile fish ventilated opercularly, rhythmically flaring its gill covers to draw water over the gills.

The term opercularisation is considered an alternative form of opercularization in several taxonomic papers.