The value of single vs repeat spawning in Steelhead populations.

As we head into peak Steelhead spawning in the lower Great Lakes here is an interesting read about the pros and cons of repeat spawners vs single spawners within Steelhead populations.

“Steelhead trout that spawn multiple times have more than twice the lifetime reproductive success of single spawning trout, suggesting there is a substantial benefit associated with repeat spawning. But it comes with a tradeoff, according to new research published in Proceedings of the National Academy of Sciences.”

Photo Source: John McMillan

Read more here: http://www.purdue.edu/newsroom/releases/2018/Q2/repeat-spawning-comes-with-tradeoffs-for-trout.html

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

w

Connecting to %s