"migration" in inglés with examples - Collocation dictionary inglés
- Spawning is preceded by significant upstream migrations if high spring flows or floods allow.
- The purpose of the barriers is to block their upstream migration to reduce reproduction.
- Young delta smelt then feed and grow in the mixing zone before starting their upstream spawning migration in late fall or early winter.
- As late as 1969, low oxygen levels related to pollution were preventing upstream migration of salmon on the Willamette.
- In May 2002, the culvert beneath Highway 84 was identified as an impassable barrier to upstream migration.
- Changes in haematology during upstream migration in American shad.
- These populations resulted from upstream migrations by fish stocked in Wyoming and Montana.
- However, many properly functioning drop structures themselves may impede the upstream and downstream migration of fish.
- It is also reported that it follows Catlocarpio siamensis during its upstream migration.
- Apparently the main upstream migration begins close to the peak of flood, when the current is very strong and the water is turbid.
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