Used for collecting benthic mega-fauna in the deep sea.
Net opening: 3 x 1 m; Mesh size: 1 x 1 cm; Weight dry: 1.500 kg; Max depth: 6.000 m.
Closing door mechanism to avoid catching pelagic fish/plankton
Bottom trawl used to collect fish and epifauna.
Width: 3, 2 or 1 m; Mesh size: 5 x 5 mm; Dry weight: 300 kg (3 m beam)
High Pressure Sampler
Used for recovering small volume pressure retaining samples from the deep-sea in inert bottles. Now bacterial respiration and production - not affected by decompression – can be measured.
Small inert bottles: titanium; Several volumes: 50 and 200 ml; Possibility of on-board tracer addition.
Water depth down to 6.000 m; 6 or 12 bottles per depth; Up to 6 depths per cast.
Pressure drop < 5%; Integrated in CTD carousel; Electronical strain gauge and mechanical pressure measurement; Pressure retaining nutrient addition unit.
Hydrobios wp2 Plankton Net
Uses to collect zoo plankton (vertical fishing).
Net opening: diameter 60 cm; Mesh size: 200 μm; Deployed from idle ship.
Isaac Kid Net
Used for pelagic fishing of nekton, plankton and fish eggs.
Net opening: 8.2 m²; Mesh size: 2 x 2 mm/5 x 5 mm; Beam width: 2.5 m; Height: 7 m.
Used for collecting zoo plankton at 5 different depths.
Net opening = 0.25 m²; Several mesh sizes: 100 μm, 200 μm, and 500 μm
Actuating via conductor tow cable. Readout via tow cable: Temperature, Depth, Tow speed, Fluorometer (optional); Max depth: 1,000 m, Height: 2.5 m, Weight: 200 kg.
Remark: Conductor tow cable is needed.
Rectangular Midwater Trawl Net
Large pelagic net for collecting fish and plankton
Plankton net: Net opening: 1 m²; Mesh size: 300 μm
Fish and nekton net: Net opening: 8 m²; Mesh size: 5 x 5 mm
Acoustic actuated closing mechanism. Readout via acoustic modem: temperature, depth, tow speed, net status.
Total height: 13 m; Total weight: 1,000 kg.
Used for catching bottom material from rough seabed.
Opening: 1 m triangle; Mesh size: 2x2 cm; Dry weight: 150 kg; Max depth: 6,000 m
Three dredges available.