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. 2013 Dec 4;8(12):e82306. doi: 10.1371/journal.pone.0082306

Table 1. Local gear-specific thresholds used to define sponge ground presence and absence.

Subarea    Gear type Local threshold (kg sponge/tow)    Sponge ground presences    Sponge ground absences
FC Campelen 1800 & Lofoten 70 150 3455
NL Campelen 1800 200 150 2191
HS Cosmos 40 89 938
Alfredo 70
Campelen 1800 40
BB Cosmos 40 28 519
Alfredo 70
Campelen 1800 40