The incidental catch of seabirds in gillnet fisheries: A global review

Tangled and drowned: a global review of penguin bycatch in fisheries

“…Trawls and gillnets are the most important fishing gears that penguins interact with in South America (Table 1) (Simeone et al 1999, González-Zevallos & Yorio 2006, Žydelis et al 2013). Due to the spatial extent of these fisheries and differences in gear specifications and fishing operations, the interaction between fisheries and penguins -and the available information on these interactions -varies significantly amongst the countries in South America.…”

Seabirds? : what seabirds? : An exploratory study into the origin of seabirds visiting the SE North Sea and their survival bottlenecks

“…For instance, mortality from drowning in fishing gear may have significant effects on a given colony of seabirds, if the nets are set in close proximity of that colony (Zydelis et al 2013). Wind turbines, placed in the immediate vicinity of breeding seabirds, may cause significant colony-specific mortality of breeders (Stienen et al 2008).…”

Canadian fishery closures provide a large-scale test of the impact of gillnet bycatch on seabird populations

“…Incidental take, or bycatch, of non-target species in fishing gear carries negative consequences for marine animals around the globe [1][2][3][4]. Yet, robust interrogations of the population effects of bycatch mortality have been precluded by data deficiencies [2,3].…”

“…These findings resulted in the closure of the Greenland driftnet fishery in 1972 [6] and contributed to a United Nations ban on high seas driftnet fishing in 1992 (Resolution 46/215). Since the 1970s, global effort in fixed (set-net) gillnet fisheries, especially in northern oceans, have increased substantially, yet there have been few recent assessments of associated seabird mortality and population responses [3,7].…”

“…Yet, robust interrogations of the population effects of bycatch mortality have been precluded by data deficiencies [2,3]. Most assessments of seabird bycatch mortality and its population implications have been directed at incidental take on baited hooks within longline fisheries of the Southern Ocean [4].…”