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. 2016 Dec 22;(4):e11054. doi: 10.3897/BDJ.4.e11054

Table 3.

Sampling gears used during the "Thor" (and complementary) expeditions. Abbreviations are used in the table of samples in Schmidt's introductory volume (Schmidt 1912) and are also explained therein. Additional information on mesh sizes of nets was retrieved from Sverdrup et al. (1942).

Abbreviation Full description
Aa 2 Eel drift-seine
C 130 Ring-trawl, 130 cm in diameter at opening, 1 mm mesh size, horizontal haul
C 200 Ring-trawl, 200 cm in diameter at opening, 1 mm mesh size, horizontal haul
D 1 Dredge, rectangular opening, 27x117 cm, 1 mm mesh size, horizontal haul
D 2 Dredge, triangular opening, 45x45 cm, 1 mm mesh size, horizontal haul
H Hand-Dredge, 18x14 cm
L Long-line with halibut and cod hooks
M Monaco trawl, 56x170 cm at opening, horizontal haul
N 30 Nansen's closing net, 30 cm in diameter at opening, gauze No. 20, 0.076 mm mesh size, vertical haul
N 50 Nansen's closing net, 50 cm in diameter at opening, gauze No. 20, 0.076 mm mesh size, vertical haul
O Otter-trawl, head-rope 15.25 m (50 feet), 30 mm mesh size, horizontal haul
P 100 Silk-net, open, conical, 100 cm in diameter at opening, gauze No. 3, 0.333 mm mesh size
P 30 Silk-net, open, conical, 30 cm in diameter at opening, gauze No. 20, 0.076 mm mesh size
R Shrimp net
S 100 Stramin-net, open, conical, 100 cm in diameter at opening, 1 mm mesh size
S 150 Stramin-net, open, conical, 150 cm in diameter at opening, 1 mm mesh size
S 200 Stramin-net, open, conical, 200 cm in diameter at opening, 1 mm mesh size
T 25 Taffeta-net, open, conical, 25 cm in diameter
Y 200 Young-fish trawl, 200 cm in diameter at opening, 1 mm mesh size, horizontal haul
Y 330 Young-fish trawl, 330 cm in diameter at opening, 1 mm mesh size, horizontal haul
E 1000 Open Ringtrawl, 1000 cm in diameter
E 300 Open Ringtrawl, 300 cm in diameter, meshes 24-18-12 mm
Y Petersen trawl, without opening given