In the morning the attendees heard a spawning and witnessed the collection of eggs. As normal light conditions cause a 'spooking' effect in tuna - a condition which causes the fish to rapidly accelerate, endangering themselves to critical collisions against tank walls - a red light was used to keep distress to a minimum.
The eggs were collected by a surface filter scoop and deposited into another fine mesh filter storage system. Once this stage was complete the eggs were counted via a density method, before being distributed among the incubators.
First nights collection was over 600,000 eggs with an almost 90 per cent fertilisation rate.
Further Reading
 | - | For more reports and information on this subject visit our IATTC 7th Annual Workshop focus page by clicking here. |
