What term describes fish migrations that occur wholly within the sea?
Answer
Oceanodromous
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What term describes fish migrations that occur wholly within the sea?
Answer
Oceanodromous
What term covers all fish that migrate between the sea and fresh water?
Answer
Diadromous
During migration, nearly all Swainson's hawks funnel through which Central American land bridge?
Answer
Isthmus of Panama
Sardine run shoals off South Africa are often more than how many kilometers long?
Answer
7 km
U.S. Navy sonar linked diel vertical migration to what ocean sonar feature?
Answer
deep scattering layer
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What term covers all fish that migrate between the sea and fresh water?
Answer
Diadromous
During migration, nearly all Swainson's hawks funnel through which Central American land bridge?
Answer
Isthmus of Panama
U.S. Navy sonar linked diel vertical migration to what ocean sonar feature?
Answer
deep scattering layer
Male northern elephant seals migrate to feeding grounds along which underwater margin?
Answer
continental shelf
What term describes fish migrations that take place entirely within fresh water?
Answer
potamodromous
Porcupine caribou migrate to calving grounds on the coastal plain of which sea?
Answer
Beaufort Sea
In terms of biomass, what is the world's largest synchronous migration?
Answer
diel vertical migration