What guides salmon back to their birth streams a the. School Idaho State University; Course Title BIOL 100; Type. Notes. Uploaded By DrRockBat8588. Pages 25 Ratings 100% (1) 1 out of 1 people found this document helpful; This preview shows page 6 - 10 out of 25 pages. ...
View salmon_brochure from SSI1 117 at University of Puget Sound. Salmon Home streams are where the salmon are born and return when they go back to …
Salmon come back to the stream where they were 'born' because they 'know' it is a good place to spawn; they won't waste time looking for a stream with good habitat and other salmon. Scientists believe that salmon navigate by using the earth’s magnetic field like a compass. When they find the river they came from, they start using smell to find their way back to their home stream.
Sockeye salmon range in size from 4 and 12 pounds and are typically between 18 to 24 inches long. Beginning in May, and continuing until late fall, mature sockeye salmon flood back into their home or natal streams to spawn and die. A female sockeye salmon lays …
Some salmon swim thousands of miles to get to the mouth of the stream where they were born . Pink salmon going upstream.
When this starts the flesh of the salmon begins to lack flavor, becomes pale in color and is mushy in texture. Most salmon used for food are caught in the ocean where they have the best flavor, color and texture before they start upstream. Salmon right before entering their stream. (GA image)
Some salmon swim thousands of miles to get to the mouth of the stream where they were born . Pink salmon going upstream. (GA image) Salmon stop feeding as they enter fresh water. Their stomach is no longer needed and it begins to disintegrate internally - leaving more room for the developing eggs and sperm.
Salmon stop feeding as they enter fresh water. Their stomach is no longer needed and it begins to disintegrate internally - leaving more room for the developing eggs and sperm. They begin living off the stored fat in their tissues that has been accumulating during their life in the ocean.
Most salmon used for food are caught in the ocean where they have the best flavor, color and texture before they start upstream. Salmon right before entering their stream. (GA image) Salmon change their physiology before entering fresh water. In the ocean their bodies tend to dehydrate in the seawater.
In the ocean their bodies tend to dehydrate in the seawater. They constantly drink seawater, using a salt gland to extract the salt, so that they do not get dehydrated. The opposite is true in fresh water, their bodies tend to take on water and become bloated.
Male salmon with kype. (GA image) Male salmon usually develop hooked snouts called kype.