Complex sentence: However, continued monitoring of landing and discarded data is important to avoid any future declines GIBSON, C., VALENTI, S. V., FOWLER, S. L., FORDHAM, S. V.2006.
Split into simpler sentences: However, continued monitoring of landing and discarded data is important to avoid any future decline. GIibson, C., Valenti, S. V., Fowler, S. L., Fordham, S. V.2006.