How was Bowker Creek different now from what it used to be?

Before: -natural water channel/flow -surrounded by wetland -many fish/ wildlife -First Nations derived food and fresh water from the stream -nutrients transported from the creek, supported Oak Bay's rich ecosystem Currently: -urban development and agriculture expanded -stream channel was straightened, excavated, and enclosed in pipes -lowered water levelsHow was Bowker Creek different now from what it used to be?