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We have three 6th grade Science classes and two 8th grade Science classes blogging here from the Pacific Northwest in Chimacum, WA! Sixth graders are learning a bit about Mt Saint Helens, environmental science through fresh water ecology, and physical science this year. Eighth graders are learning about life science this year. Please join us as we learn Science by exploring our world.
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by parkerm teacher: Alfonso Gonzalez


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salmon alevin

oh no i hasto rewrite this ALL because it just deleted my work....grrrr.....computer ur so mean......    watever....anyway,


ALEVIN NEEDS:


alevins need several things to survive in the wild.They need a secure place in the rocks to live in.They also need a low current stream,and a cold water temperature.


 


ALEVIN THREATS:


alevins have a wide variety of dangers,since they are so tiny and defenseless.here are a couple.larger fish are a big danger to alevin since they can eat them.gravel falling,can be dangerous because alevins hide between gravel and can be crushed.large animals,can step on them or eat them.humans can pollute the water,step on them,and make the gravel fall.flooding is a problem for them because they can be washed out of the stream.


 


 DESCRIPTION:


Alevins are sorta a transparent-silvery color.They have gold-yellow eyes.


They also have a yolk sack below their body to get their food from.


 


pics 2 come...srry i hasto draw them.....uck!i wil have to over the weekend...

Article posted January 12, 2012 at 03:21 PM • comment • Reads 975 • Return to Blog List

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