Active Forum Topics

The authors evaluated factors influencing marine mammal bycatch in static net fishing operations in the UK between 1996 and 2023. Since 2014, harbour porpoise (Phocoena phocoena)  bycatch has been decreasing while common dolphin (Delphinus delphis) bycatch has been increasing; grey seal (Halichoerus grypus) and harbour seal  (Phoca vitulina) bycatch has been increasing gradually across the time period. Influential factors included seasonal patterns, water depth, and level of fishing effort. 

The authors evaluated factors influencing marine mammal bycatch in static net fishing operations in the UK between 1996 and 2023. Since 2014, harbour porpoise (Phocoena phocoena)  bycatch has been decreasing while common dolphin (Delphinus delphis) bycatch has been increasing; grey seal (Halichoerus grypus) and harbour seal  (Phoca vitulina) bycatch has been increasing gradually across the time period. Influential factors included seasonal patterns, water depth, and level of fishing effort. 

The authors evaluated factors influencing marine mammal bycatch in static net fishing operations in the UK between 1996 and 2023. Since 2014, harbour porpoise (Phocoena phocoena)  bycatch has been decreasing while common dolphin (Delphinus delphis) bycatch has been increasing; grey seal (Halichoerus grypus) and harbour seal  (Phoca vitulina) bycatch has been increasing gradually across the time period. Influential factors included seasonal patterns, water depth, and level of fishing effort. 

The authors evaluated factors influencing marine mammal bycatch in static net fishing operations in the UK between 1996 and 2023. Since 2014, harbour porpoise (Phocoena phocoena)  bycatch has been decreasing while common dolphin (Delphinus delphis) bycatch has been increasing; grey seal (Halichoerus grypus) and harbour seal  (Phoca vitulina) bycatch has been increasing gradually across the time period. Influential factors included seasonal patterns, water depth, and level of fishing effort. 

The authors assessed accurate reporting of seabird bycatch in the Greenland halibut (Reinhardtius hippoglossoides) fishery in northern Canada. The amount of bird bycatch reported by at-sea observers and carcass collections yielded different (0.5-11-fold higher) results from that of the at-sea observers database. This highlights huge discrepancies in methods which suggest that seabird bycatch data is not accurate.

The authors assessed accurate reporting of seabird bycatch in the Greenland halibut (Reinhardtius hippoglossoides) fishery in northern Canada. The amount of bird bycatch reported by at-sea observers and carcass collections yielded different (0.5-11-fold higher) results from that of the at-sea observers database. This highlights huge discrepancies in methods which suggest that seabird bycatch data is not accurate.

The authors assessed accurate reporting of seabird bycatch in the Greenland halibut (Reinhardtius hippoglossoides) fishery in northern Canada. The amount of bird bycatch reported by at-sea observers and carcass collections yielded different (0.5-11-fold higher) results from that of the at-sea observers database. This highlights huge discrepancies in methods which suggest that seabird bycatch data is not accurate.

The authors tested bycatch rates in various soak times and durations  in shallow-set gillnets in the Atlantic herring (Clupea harengus) bait fishery in Canada. Nearly all bycatch, including seabird, occurred during control (24+ hour) sets as opposed to short  (12 hour) daytime or overnight sets. Because seabirds associated with fishing vessels during the daytime, the authors recommend that fishers set overnight and haul nets in the early morning to minimize seabird bycatch risk. 

Large escape openings located at the sorting grid panel, which could be a beneficial tool to reduce marine megafauna bycatch, such as Greenland shark, did not impact northern shrimp catch rates in comparison to traditional gear. 

Large escape openings located at the sorting grid panel, which could be a beneficial tool to reduce marine megafauna bycatch, such as Greenland shark, did not impact northern shrimp catch rates in comparison to traditional gear. 

Large escape openings located at the sorting grid panel, which could be a beneficial tool to reduce marine megafauna bycatch, such as Greenland shark, did not impact northern shrimp catch rates in comparison to traditional gear. 

Large escape openings located at the sorting grid panel, which could be a beneficial tool to reduce marine megafauna bycatch, such as Greenland shark, did not impact northern shrimp catch rates in comparison to traditional gear. 

Large escape openings located at the sorting grid panel, which could be a beneficial tool to reduce marine megafauna bycatch, such as Greenland shark, did not impact northern shrimp catch rates in comparison to traditional gear. 

Large escape openings located at the sorting grid panel, which could be a beneficial tool to reduce marine megafauna bycatch, such as Greenland shark, did not impact northern shrimp catch rates in comparison to traditional gear. 

A mobuilid sorting grid placed over the hopper used to sort bycatch on tuna purse seine vessels aided in the release of larger mobuilid rays without increasing handling time.  

A mobuilid sorting grid placed over the hopper used to sort bycatch on tuna purse seine vessels aided in the release of larger mobuilid rays without increasing handling time.  

A mobuilid sorting grid placed over the hopper used to sort bycatch on tuna purse seine vessels aided in the release of larger mobuilid rays without increasing handling time.  

A mobuilid sorting grid placed over the hopper used to sort bycatch on tuna purse seine vessels aided in the release of larger mobuilid rays without increasing handling time.  

A mobuilid sorting grid placed over the hopper used to sort bycatch on tuna purse seine vessels aided in the release of larger mobuilid rays without increasing handling time.  

A mobuilid sorting grid placed over the hopper used to sort bycatch on tuna purse seine vessels aided in the release of larger mobuilid rays without increasing handling time.