About us

GoConsult is an independent service provider founded 1997 as an initiative of Dr. Stephan Gollasch. Located in Hamburg, Germany - the busiest German port - we provide services related to marine research and technology. We are specialised in biological invasions, ship sampling, ballast water treatment and [...]

Ballast water

GoConsult is active in ballast water related work since 1992. Dr. Gollasch was involved in the first European ship sampling programme on ballast water, tank sediments and ship hull fouling carried out 1992-1996. His PhD is world-wide the first thesis based on ballast water sampling... [...]

Current activities

GoConsult is currently involved in various projects related to biological invasions, including ballast water sampling. Further, Dr. Gollasch is a member of the German Delegation at the International Maritime Organization (IMO), MEPC (BWWG). Outside the scientific arena, GoConsult supports the planning of [...]


Due to the international aspect of biological invasions Dr. Gollasch became a member of several international and national working groups. In this field of research regional / international cooperation is key as many introduced species spread across political boundaries [...]


This section includes documents related to biological invasions and relevant regulatory instruments. Further, some publications of Stephan Gollasch are made available here, either as full account or as abstract (see also section "selected publications"). [...]

Selected puplications

Stephan Gollasch was involved in more than 150 publications of which 25 accounts have been published in refereed journals. In addition to 20 poster presentations he delivered more than 100 talks at scientific meetings. For reprints see also the "download" section or please contact us at sgollasch@aol.com. [...]

Photo galery

The following photos are made available as a courtesy of GoConsult, but may only be used with proper reference. Images in higher resolution may be made available upon request. [...]