RV Tangaroa

The CTD (conductivity-temperature-depth) profilers are deployed through the mid-ships starboard A-frame. When it is recovered, the CTD profiler is then housed in the CTD-enclosure, which is connected to the hydro/dry-laboratory.

Tangaroa has excellent facilities for the sorting, preserving, processing, and storage of fish, plankton, and other biological material. These include several purpose-built wet laboratories. Two laboratories are on the starboard side on the main trawl deck; one commonly used as a CTD-laboratory or as a wet hydro-lab (5.7 m x 1.5 m), the other a plankton lab (4.7 m x 1.7 m). A sizable temperature-controlled wet laboratory (3.4 m x 3.0 m) is also provided on the starboard side of the trawl deck. All laboratories have workbenches, cold and warm running water, and ample space for storage of containers and equipment.

The trawl is emptied onto the deck and the fish stored through hatches in three receiving bins (total capacity: 75 m3), where they are kept fresh by a refrigerated salt water re-circulation system. Upon removal from a receiving bin, the fish is sorted semi-automatically by hand, with the selected specimen kept in smaller holding tanks for further scientific study. The remaining fish are processed in the fish factory, which can process up to 16 tonnes of fish per day. The freezer hold has a capacity of 350 tonnes of processed fish product.

Three laboratories are available on the fish-processing deck. The main wet laboratory (6.2 m x 7.1 m) contains large weighing and dissecting tables and is used for all major fish studies. Two more laboratories are available - one wet laboratory (4.2 m x 3.2 m) and one dry laboratory (3.5 x 3.2 m).

A medium-sized scientific freezer, adjacent to the main wet laboratory, is designed to remain at a constant temperature between –30 and +5°C.

Tangaroa has five dedicated dry laboratories/computer areas. There is a large computer area (6.5 m x 4.1 m) on the bridge, from which voyage leaders, lead scientists, and support staff can direct all scientific operations and process the main data.
One hydro/dry laboratory (6.0 m x 3.2 m) is available on the trawl deck, while one terminal room (4.5 m x 4.5 m) is provided on the main deck. The main computer/EM300 control room (4.5 m x 5.7 m) and the electronics laboratory (4.5 m x 6.0 m) are housed below the main deck.

The vessel’s dark room (5.5 m x 2.5 m) is situated on the trawl deck.

The chemical preparation and storage laboratory can be used as a radioisotope laboratory (3.2 m x 2.8 m). It is located on the trawl deck, and is provided with benches and fume cabinet.

The port wet lab, on the trawl deck, can maintain a controlled temperature between –5 °C and +5 °C (with an accuracy of plus/minus 1.0 °C).

Tangaroa can carry up to three six metre container laboratories on the trawl deck.

Tangaroa is also fitted with a six metre emergency survival container. This container is designed to provide all basic survival facilities and food for the entire vessel’s complement, should the vessel experience a total ‘black-out’, i.e., no engine power.

Tangaroa has a range of communal spaces available, including:

• Mess room
• Three lounges with television and video facilities (one is a smoking lounge)
• Conference room (6.7 m x 3.2 m) that seats 14 personnel
• Ship’s office (3.1 m x 3.2 m)
• Fitness centre
• Japanese bath
• Sauna

The vessel has a built-in sea water pumping system with the capacity to pump approximately 30 m3 of water per hour for scientific purposes.