Technical papers describe cutting edge research and present the results of new (i.e., not previously published) research in ocean technology, science or engineering, and be no more than 7,500 words in length. Student papers are welcome.
Essays present well-informed observations and conclusions, and identify key issues for the oceans community in a concise manner. They are written at a level that would be understandable by a non-specialist. As essays are less formal than a technical paper, they do not include abstracts or a listing of references. Typical essay lengths are up to 3,000 words.
Important deadlines:
Technical paper submissions: November 16, 2018
Expressions of interest for essays or short articles: December 14, 2018 (deadline for submission of materials is January 25)
For more information, see here.