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Among the provisions in the act, it makes it illegal to "handle salmon in suspicious circumstances", [1] which is defined in law as when one believes, or could reasonably believe, that salmon has been illegally fished or that salmon—that has come from an illegal source—has been received, retained, removed, or disposed of.
A salmon hat is a cultural fad displayed by orcas, where they wear dead salmon upon their heads. It was first observed in 1987 with southern resident orcas and was a relatively short-lived phenomenon. [1] [2] In 2024, the behaviour was observed again with orcas in Puget Sound. The motivations for salmon hats are unclear, but other orcas will ...
The source of L. salmonis infections when salmon return from fresh water has always been a mystery. Sea lice die and fall off anadromous fish such as salmonids when they return to fresh water. Atlantic salmon return and travel upstream in the fall to reproduce, while the smolts do not return to salt water until the next spring.
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An orca was seen balancing a salmon on its head in coastal waters in Washington state. Orcas were previously observed doing the same thing in the 1980s. It’s not clear what the behavior means.
The inaugural harvest of genetically modified salmon began this week after the pandemic delayed the sale of the first such altered animal to be cleared for human consumption in the United States ...
These salmon are believed to have been anadromous like their living relatives. [7] Scientists once thought the teeth pointed straight down, like a saber-toothed cat's teeth. Now it is believed the teeth stuck out sideways from the mouth. [5] The salmon's spike teeth grew in size as it transitioned from life in the ocean to fresh water.
In addition to the development of the kype, a large depression forms in the two halves of the premaxilla in the upper jaw, allowing the kype to fit into the premaxilla when the mouth is closed. [3] The kype functions as a secondary sexual characteristic and influences the formation of dominance hierarchies at the spawning grounds. The size of ...