| Main Ref. | Frimodt, C., 1995 |
| Mode | protandry |
| Fertilization | external |
| Mating type | |
| Spawning frequency | |
| Spawning aggregation | Yes. Ref. SCRFA, Science and Conservation of Fish Aggregations, 2018 |
| Batch spawner | Ref. |
| Reproductive guild |
nonguarders open water/substratum egg scatterers |
| Parental Care | none |
| Description of life cycle and mating behavior | Breed in estuaries throughout the Indo-Pacific. Maturing male barramundi migrate downstream from freshwater habitats at the start of the wet (monsoon) season to spawn with resident females in estuaries (Ref. 27132) and on tidal flats outside the mouths of rivers (Ref. 6390). Barramundi spawn on the full moon and new moon, primarily at the beginning of an incoming tide which carries the eggs into the estuary (Ref. 28135). Barramundi are broadcast spawners that aggregate to spawn (Ref. 6390). Spawning aggregations occur in or around the mouths of rivers (Ref. 28132). While adults and juveniles are capable of living in fresh water, brackish waters are required for embryonic development (Ref. 6136). Female barramundi are capable of producing large numbers of eggs, with estimates as high as 2.3 million eggs per kg of body weight (Ref. 28134). Barramundi are protandrous hermaphrodites, i.e., they undergo sex reversion during their life cycle. Females are generally absent in the smaller length classes, but dominate larger length classes. Most barramundi mature first as males and function as males for one or more spawning seasons before undergoing sex inversion. A few females will develop directly from immature fish (Ref. 28132). Similarly, some males may never undergo sex inversion (Ref. 28132). Also Ref. 103751. |
| Search for more references on reproduction | Scirus |