It is a complex field that has many divisions. A chemical oceanographer researches the chemical changes at work in the sea, tracing pollution and dealing with its removal and prevention. A geological oceanographer studies shorelines, ocean floors, sediment layers and mineral content. Physical oceanographers study the physical properties of the oceans, currents, tides, and waves and how they are affected by atmospheric events. A biological oceanographer studies animal communities in the open ocean.
Zoologists often specialize in the study of one particular species.
This type of research can be important in the management of animals and their habitat. Veterinarians diagnose medical conditions, perform surgery, and prescribe and administer medication. A zookeeper may work with a variety of different animals including mammals, birds, reptiles, and fish. Zookeepers are responsible for cleaning animals enclosures, feeding the animals, and monitoring animal behavior. Within the marine sciences, there are many careers that deal with the regulatory aspects of the field.