The dominant male swims alongside ... called kypes; these transformations result from changes to their fat composition, blood chemistry, and hormone levels. Salmon travel an average of 150 miles ...

SALT LAKE CITY (ABC4) — Kokanee salmon — a popular sport fish in ... Wildlife Resources spoke with ABC4 about what drives this transformation and how it affects Utah’s ecosystem.

"We have found that a majority of the female chinook salmon sampled carry a genetic marker that is found only in male salmon. The best explanation for these results is that these females have been ...

For every male salmon that doesn’t make it to their natal stream, at least two, sometimes three female salmon die. “This is causing skewed sex ratios in their spawning grounds, something that has been ...

He then injected newly hatched salmon with stem cells destined to grow into sperm that he had culled from male rainbow trout. Once they were grown, 10 of 29 male salmon who received the injections ...

Young male salmon raised in fish farms mate more aggressively than their counterparts in the wild. This means that fish escaping from farms are likely to pose a greater threat to native species ...