Dive into the fascinating world of marine ecosystems in this 50-minute lecture. Explore Earth's surface composition, mean elevation, and major oceans while distinguishing between seas and oceans. Examine the continuous circulation patterns driven by wind, including trade winds and the Coriolis effect. Investigate ocean currents, their directions, and the unique characteristics of lower polar regions. Delve into advanced concepts such as Ekman transport, Ekman spiral, and convection. Conclude by understanding the influence of satellite masses on marine ecosystems. Gain a comprehensive understanding of the complex interactions that shape our planet's aquatic environments.