Spawning

It catches fish in ice-holes or during spawning time and readily picks up dead fish.

The Sargasso Sea is a spawning site for threatened and endangered eels, as well as white marlin, porbeagle shark, and dolphinfish.

Stony corals reproduce by releasing their eggs and sperm all at the same time. This spawning cycle is one of nature’s most spectacular events.

In Alaska, where wild salmon is iconic, Copper River fish hold a special status. Their high oil content is linked to their ultra-long migration route from the ocean to their glacier-fed spawning grounds.

The salmon swim upstream to their spawning grounds.

Most salmon die after spawning.

During the next few weeks, beaches on America’s Atlantic coast will play host to some of the strangest-looking creatures in the world, horseshoe crabs, which are swimming in from deeper waters for their annual spawning.

“These sounds are associated with a range of different behaviors from tracking mates, spawning, and finding prey to avoiding predators,” Kaplan said, reached at an international acoustics conference in Denmark.

Haddock can lay over a million eggs in one spawning.

The group called for the creation of fish hatcheries that would release "fingerlings" into the old spawning grounds.