Sea Surface Temperature Affects the Reproductive Biology of Female Pearl Perch (Glaucosoma scapulare Macleay, 1881) in Queensland, Australia

Table 1

Macroscopic stages of pearl perch ovaries, adapted from the six macroscopic stages outlined by Mackie et al. [20] to include separate spawning (5) and spent (6) stages.

Stage	Classification	Description of ovaries
0	Unknown sex	Small translucent ribbons, sex indistinguishable
1	Immature	Ovaries thin and firm, pale or translucent pink
2	Resting	Ovaries more rounded, pale pink or red. No oocytes visible. Approximately 1/4–1/3 length of the body cavity
3	Developing	Ovaries enlarged, pale orange or pink, blood vessels noticeable. Oocytes visible, small. Approximately 1/3–2/3 length of the body cavity
4	Developed	Ovaries enlarged, orange or yellow but not speckled. Oocytes large and clearly visible
5	Spawning	Ovaries much enlarged, translucent pale orange. Hydrated clear oocytes visible giving speckled appearance. Blood vessels prominent
6	Spent	Ovaries bloody and flaccid