11. The Little Sea is considered to be a lagoon so it presents problems of water exchange . 12. In December 2010 NSX Limited announced the sale of The Water Exchange to Envex Water Limited. 13. This inflow raises and lowers the sea level that promotes the water exchange with the Barents Sea. 14. However, very little water exchange occurs at all, every second only of water flows into the lagoon. 15. Ballast water management is subjected to the ballast water exchange standard and the ballast water performance standard. 16. Semi-intensive farms do not rely on tides for water exchange , but use pumps and a planned pond layout. 17. According to strontium isotope data, there may have been little water exchange between Tauca's Uyuni and Coipasa basins. 18. The overall water exchange rate is high ( about 30 times year ), with some almost stagnant areas. 19. The central column is designed as an open system allowing an unrestricted water exchange in each tide cycle. 20. Various kinds of market intermediaries facilitate the trade of water, including water brokers, water exchanges and message boards.
