The diversity of marine ecosystem and the overall dimension of this part of our planet are very impressive. Oceans include the greatest extremes of pressure, temperature and light and habitats can range from tropical waters to ocean trenches, several kilometers below sea level at high pressure. Other marine bioactives are being used as health or beauty products in our daily life, such as fucoidan and alginate. Biomolecules from marine products with various bioactivities has become a popular research field that is yielding interesting results every day. The biological adaptation of marine organisms to a wide range of environmental conditions in the specific environment has made them an enormous reservoir of interesting biological material for both basic research and biotechnological improvements. Marine biomolecules scientific journals contain articles that are peer reviewed, to ensure that articles meet the journal's standards of quality, and scientific validity. The publication of the results of research is an essential part of the scientific method. If they are describing experiments or calculations, they must supply enough details that an independent researcher could repeat the experiment or calculation to verify the results.