- Marine biology is a subject mixing functional biology and ecology.
- Biodiversity is the third major factor in marine biological studies.
- Marine biology began with simple observations of the distribution and variety of marine life.
- In the nineteenth century, marine biology developed into a science involving ecology and hypothesis testing.
- The voyage around the world of the H.M.S. Challenger gave us the first global-scale view of marine biology.
- Advances in modern marine biology included the development of major research institutions, faster ships, better navigation, and greatly improved diving technology.
- Technology in both the laboratory and the open sea has played an important role in the development of marine biology.
- Marine biologists, like all scientists, use the scientific method, which is a systematic means of reasoning and observation.
- Most marine biological research requires extensive observations and correlations, but experimentation is usually the most efficient way to answer a question.
- Experimentation is a much sharper and more powerful way of establishing cause.
- Marine biological research involves the testing of hypotheses and may involve experimentation or sampling.
- Hypothesis testing is most powerful when specific predictions for an experimental treatment can be contrasted with difference from a control.
- Some terms are necessary to describe life habits of marine organisms: neuston, plankton, nekton, benthos.