The oceans are a vast, dynamic, and integral part of our world. Surprisingly, it has only been in this last century that we have begun to learn about the importance of our oceans. And, even with our modern technology and engineering capabilities, we have only explored roughly 5% of the world's oceans. Given the enormity and complexity of the oceans, it takes a plethora of experts across varying fields to build our web of knowledge. Marine ecology is a broad and exciting field that captures our attention and curiosity. This course provides a general understanding of all subject matter within this field. It is the study of how organisms interact with each other and the environment, the flow of energy through communities, and the link between ocean ecosystems. It requires a diverse understanding of subjects from across science disciplines, including engineering and technology. Dive into this course and gain an overview of these subjects and topics and discover what your role is in the changing ecology of marine ecosystems.