Dr. Sadovy suggested that spawning aggregations be considered protected events rather than simply times when fish are easy to catch, as has been done with salmon in Bristol Bay, Alaska.
The dish is held in such high esteem in New Zealand that when the country's Green Party issued a press release a month ago warning that spawning habitats were being endangered by farming and industrial activity, it was titled, "Save the Whitebait (fritter)".
We found that spawning can profoundly influence the longitudinal profiles of stream beds and thereby the evolution of entire watersheds.
We conclude that Nile tilapia favour mating in groups and that spawning success as defined here is a heritable trait.
But one bold sockeye swam within arm's reach, displaying the hooked nose and needle-sharp teeth that spawning males develop to fight over the ladies.
In warmer climates, the combined effects of recovery from moulting and ovary maturation mean that spawning can become delayed.
