1. We call this the vertical migration.

2. The diel vertical migration of zooplankton was irrelevant to the phytoplankton density.

3. The diurnal vertical migration of planktonic Ostracoda is studied based on the analysis of stratified samples of zooplanktons in the IONESS system.

4. This basin developed numerous vertical migration pathways with good connectivity in fluids hold during tectonic activity, so the Junggar basin can be taken as a complex pool-forming dynamic system.

5. The periodic activity of fault controls the periodic vertical migration of petroleum along the fault.

6. Pinghu fault is the main passage for the vertical migration of oil and gas.

7. It is the vertical migration that causes strong frost heave in the upper subgrade.

8. The finite salinity tolerance and tidally-oriented vertical migration of copepods might be the intrinsic reasons for the phenomenon of species minimum in LSZ.

8. try its best to collect and build good sentences.

9. Vertical migration is an effective technique for improving system performance.

10. Vertical migration of hydrocarbon in underground oil and gas accumulation and its ring halo effect have been demonstrated is many oil and gas fields.

11. The late-stage accumulation in the Huanghekou sag is characterized by late quick hydrocarbon generation, late vertical migration through faults, near-source accumulation and late charge.

12. All of these exhibit the direct evidence for the vertical migration of radioactive materials in the ground.

13. Life cycle, generation time, fecundity, and egg production quantity are the main factors to determine these two species' vertical migration.

14. Short distance lateral migration of oil and gas is the general rule, though vertical migration and multi-stage accumulation and dispersion are not uncommon.

15. So these animals have to travel from the ocean's depths toward its upper layers to feast on the phytoplankton growing there. We call this the vertical migration.

16. The faults and vertical fissures in the strata are conduits for gas vertical migration, which are also controlling the distribution of secondary pools.

17. This paper is based on photographs which were detected by a colour-sounder surveying demersal fishes and DSL rhythmic vertical migration in the northern part 'area of South China Sea.

18. Cambro-Ordovician mudstones, upper Cambrian and Carboniferous gypsum rocks and the relatively tight lithologies have blocked the vertical migration of formation fluids in Tarim basin.

19. When LNAPL reached the upper interface of the interlayer its vertical migration was blocked.

20. They link deep gas sources to shallow reservoirs, and are main pathways for the vertical migration of natural gas.