Sentences with phrase «repeat spawners»

Despite the clear reproductive benefits associated with repeat spawning, only 2.4 percent of fish in the study were identified as repeat spawners, suggesting that multiple journeys out to sea and back are seriously risky.

The findings show that single spawning fish are more successful than first - time repeat spawners their age, pointing to a tradeoff between mortality and reproduction.

Repeat spawners make the dangerous journey from the ocean to their freshwater spawning grounds multiple times throughout their lives, while single spawners take the risk only once.