1.   About nine miles of spawning habitat would be restored.

2.   He contributed to the understanding of the role of marshes in flood drainage, water filtration and providing a spawning habitat for fish and other ocean life.

3.   In fact, wild salmon has suffered from overfishing and loss of spawning habitat, as water projects disrupt rivers and streams.

4.   The listing is likely to require multiple measures to improve spawning habitat.

5.   The non-native fish stuck to mid-stream and were carried away, leaving the backwater spawning habitat to the natives.

6.   The Reach is the last major salmon spawning habitat on the Columbia River.

7.   They are working to enhance spawning habitat in four tributary rivers.

8.   Widely distributed invasive species like the catfish and carp ate the scarce, isolated natives and competed with them for food and spawning habitat.

a. + habitat >>共 258
natural 24.80%
critical 4.77%
native 3.49%
new 2.91%
important 1.86%
suitable 1.75%
animal 1.75%
prime 1.40%
different 1.28%
salmon 1.16%
spawning 0.93%
spawning + n. >>共 73
ground 28.69%
season 6.77%
area 6.37%
bed 5.18%
tornado 3.59%
habitat 3.19%
site 3.19%
stream 3.19%
run 2.39%
salmon 2.39%
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