Effects of fishery and environmental factors on a novel multispecies pot targeting European lobster (Homarus gammarus), Atlantic cod (Gadus morhua) and edible crab (Cancer pagurus)

Small-scale fisheries along the Swedish west coast are often operated by using small vessels, targeting multiple species means of pots and gillnets. Fisheries shellfish such as European lobster ( Homarus gammarus) , edible crab Cancer pagurus ) have a relatively high economic value. However, gillnet demersal fish currently diminishing primarily due to depleted stocks increased seal depredation. considered sustainable use selective gears low energy consumption. To be able retain promote small-scale fishery, there is need develop an economically viable where selective, seal-safe gear utilized. One potential way forward could pot used for target traditionally caught in Since both cod (Gadus morhua) can pots, objective this work was multispecies lobster, cod. Seven multi-species were developed tested off Sweden between 2015 2017. The catch rate, defined per day (CPUE) cod, evaluated taking into regard fisheries-related variables type, bait, soak time, damage abundance pot. relative CPUE highest larger with two chambers three open entrances. 0.24 individuals 0.17 Pots entrances equipped funnels, preventing from escaping, also had (0.23 per). crabs not affected type. For crab, significantly decreased increasing time. Seal only occurred when trapped higher subjected damage, indicating that seals raid specifically cods inside.