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| Location | Gear | Catch | Technique | Bycatch species | Type | Results |
|---|---|---|---|---|---|---|
San Clemente del Tuyu, Argentina |
Gillnets and Entangling Nets
|
Striped weakfish (Cynoscion guatucupa), whitemouth croaker (Micropogonias furnieri) |
Stiff gillnet
|
Small Cetaceans (maximum length < 7.5 meters), Pontoporia blainvillei (Franciscana dolphin) | Field study in the wild | Experimental trials were carried out in Argentina comparing franciscana (Pontoporia blainvillei) bycatch rates in standard gillnets with gillnets with increased acoustic reglectivity by infusion with barium sulphate (BaSO4) and increased flexural stiffness of the nylon twine. There was no significant difference in franciscana bycatch rates or target catch rates among the three net types. |
Northeast Atlantic |
N/A | Mammals, Large Cetaceans (maximum length > 7.5 meters), Small Cetaceans (maximum length < 7.5 meters) | Summary study | Potential risk of fisheries to cetaceans was assessed using a screening procedure based on a Productivity Susceptibility Analysis (PSA) using gears found in Ireland. Gillnets targeting demersal species was assessed as the fishery posing the greatest risk to cetaceans. Pelagic trawls targeting small pelagic species was found to pose a moderate risk to cetaceans. Specific gear-species interactions were also identified, such as humpback whales (Megaptera novaeangliae) and pots/traps. |