University of Gothenburg
Research vessel Nereus cruising in the Koster fiord
Research vessel Nereus is used extensively at Tjärnö Laboratory
Photo: Martin Larsvik


At the Tjärnö Laboratory there is the 16 metre-long research vessel Nereus. In addition there is the 8.5 metre ship Doris as well as five small boats with outboard engines.

R/V Nereus

The research vessel Nereus, length 16 metres, is equipped for marine education and research during day-trips in coastal waters. The trained and experienced crew is familiar with handling and deploying scientific equipment, and with local conditions. During inshore expeditions Nereus can take 48 persons on board, during offshore expeditions 23 persons.

Nereus is equipped with AIS (Automatic Identification System). The ship sends regularly information about its position, course, speed, etc. You can follow the track of Nereus on MarineTraffic.


The vessel Doris is 9 metres in length and equipped for marine research and education during day-trips in coastal waters. Persons with ”sjöbefälsexamen klass 8” or corresponding, and proven familiarity with the ship may hire Doris without crew from Tjärnö Laboratory.

The ship Doris making speed in the water
The ship Doris has an A-frame in the stern and with a hydraulic winch, for dredging and hydrography.
Photo: Martin Larsvik

The ships have a wide selection of instruments and sampling equipment both for open water and sediment, including plankton nets, dredges, CTD, rosette water sampler, remotely operated vehicles (ROV) etc.

We also have field equipment used in shallow waters and from land, as well as from smaller boats.

Small boats

Two 6 metre-long open boats with outboard engines may be used by employees and visiting researchers with permission and training equivalent to the Swedish Förarintyg or better.

Three 4,5 metre-long open boats with outboard engines may be used by students, employees and visiting researchers with permission in the nearby area.

Three 4 metre-long rowboats may be used by students, employees and visiting researchers after a briefing, in the nearby area. Each rowboat carries three persons.

All fieldwork during period 20 October - 31 May and/or outside the nearby area and/or working alone requires an approved risk assessment.

Pioneer small boat with ramp in the bow
One of the two 5–6 metres-long boat has a folding ramp in the bow.
Photo: Joel White

Contact, smaller boats

Joel White

+46 31 786 96 03


In the harbour of Tjärnö Laboratory there is a crane for boats, heavy buoys etc. It lifts 5 tonnes and is manoeuvred by our workshop personnel who have undergone special training. In 2021 this crane replaced a previous, more than 45 years old, crane which no longer fulfilled current requirements. The new crane is both hot-dip galvanized and painted, which hopefully makes it last at least as many years as the previous.

Crane lifting boat wit outboard engine from the water
Joel White and Henrik Johansson lift the boat Kallianassa from the water for winter storage.
Photo: Martin Larsvik