Salmon Life Cycle
05/10/08 23:25 Filed in: Quiz
Salmon Life Cycle
Fill in the blanks with words from below:
A Freshwater Start
The life of a salmon begins as an _____________ buried in _____________ at the bottom of a stream. After the egg _____________, the tiny fish with its yolk sac still attached lives in the gravel. This tiny fish with a yolk sac is called an_______________. The yolk sac nourishes the alevin. After the yolk sac is absorbed, the salmon emerges from the gravel as a ____________ and starts to catch _____________ prey.
Journey to the Sea
Some _____________ of salmon head directly to the sea, while other species live in freshwater for a while. As salmon move to the sea they have to get used to the ______________. The best place to do this is in an _______________, which is a place where the freshwater rivers and streams meet the saltwater ocean. Salmon that are getting ready to live in saltwater are called _____________. Once in the ocean, the salmon grows _______________ because there are plenty of __________________________ to eat.
The Return Home
Then after spending several years in the ocean the _____________ salmon head back to the streams where they were born. How they get there is a wonder of ________________, Scientists think they use their sense of ______________.
The ________________ salmon face many obstacles. They have to _______________ over waterfalls and ________________ animals such as bears. When they reach a nice gravel bed, females use their tales to make a nest, called a _______________ where they lay their eggs. The males _____________ the eggs and the _____________ begins again.
Vocabulary:
egg
saltwater
fry
smolts
redd
adult
nature
gravel
live
estuary
spawning
rapidly
leap
cycle
hatches
alevin
species
shrimp and fish
fertilize
avoid
smell
Fill in the blanks with words from below:
A Freshwater Start
The life of a salmon begins as an _____________ buried in _____________ at the bottom of a stream. After the egg _____________, the tiny fish with its yolk sac still attached lives in the gravel. This tiny fish with a yolk sac is called an_______________. The yolk sac nourishes the alevin. After the yolk sac is absorbed, the salmon emerges from the gravel as a ____________ and starts to catch _____________ prey.
Journey to the Sea
Some _____________ of salmon head directly to the sea, while other species live in freshwater for a while. As salmon move to the sea they have to get used to the ______________. The best place to do this is in an _______________, which is a place where the freshwater rivers and streams meet the saltwater ocean. Salmon that are getting ready to live in saltwater are called _____________. Once in the ocean, the salmon grows _______________ because there are plenty of __________________________ to eat.
The Return Home
Then after spending several years in the ocean the _____________ salmon head back to the streams where they were born. How they get there is a wonder of ________________, Scientists think they use their sense of ______________.
The ________________ salmon face many obstacles. They have to _______________ over waterfalls and ________________ animals such as bears. When they reach a nice gravel bed, females use their tales to make a nest, called a _______________ where they lay their eggs. The males _____________ the eggs and the _____________ begins again.
Vocabulary:
egg
saltwater
fry
smolts
redd
adult
nature
gravel
live
estuary
spawning
rapidly
leap
cycle
hatches
alevin
species
shrimp and fish
fertilize
avoid
smell