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This study analyzes the impacts of annual temporal fishing closures of gillnet fisheries in Lake Saimaa, Finland on bycatch/recovery of the Saimaa ringed seal population from 1991-2021. Results show that  fishing was responsible for 26% of observed mortality and 90% of that was from gillnet entanglement, but most bycatch mortalities are likely not observed and therefore underestimated. Longer temporal coverage of annual closures would improve juvenile survival, but the coverage may be regionally adequate. 

This study analyzes the impacts of annual temporal fishing closures of gillnet fisheries in Lake Saimaa, Finland on bycatch/recovery of the Saimaa ringed seal population from 1991-2021. Results show that  fishing was responsible for 26% of observed mortality and 90% of that was from gillnet entanglement, but most bycatch mortalities are likely not observed and therefore underestimated. Longer temporal coverage of annual closures would improve juvenile survival, but the coverage may be regionally adequate. 

This study analyzes the impacts of annual temporal fishing closures of gillnet fisheries in Lake Saimaa, Finland on bycatch/recovery of the Saimaa ringed seal population from 1991-2021. Results show that  fishing was responsible for 26% of observed mortality and 90% of that was from gillnet entanglement, but most bycatch mortalities are likely not observed and therefore underestimated. Longer temporal coverage of annual closures would improve juvenile survival, but the coverage may be regionally adequate. 

In 2022, Mexican authorities placed hundreds of concrete blocks with entangling metal hooks to discourage gill net use; as a result, there has been a substantial decline in gill net use in the area, and healthy vaquitas have been observed. However, in order to fully protect the vaquita from extinction, more of the population's distribution area need to be protected from gill nets.

In 2022, Mexican authorities placed hundreds of concrete blocks with entangling metal hooks to discourage gill net use; as a result, there has been a substantial decline in gill net use in the area, and healthy vaquitas have been observed. However, in order to fully protect the vaquita from extinction, more of the population's distribution area need to be protected from gill nets.

In 2022, Mexican authorities placed hundreds of concrete blocks with entangling metal hooks to discourage gill net use; as a result, there has been a substantial decline in gill net use in the area, and healthy vaquitas have been observed. However, in order to fully protect the vaquita from extinction, more of the population's distribution area need to be protected from gill nets.

This summary study provides the  first global meta-analyses  of small- and large-scale gillnet odontocete bycatch  during 1990–2020, and estimates that annual gillnet bycatch in this timespan is 50,000 odontocetes. It highlights the need for improved management of gillnet fisheries worldwide, noting that effective methods (spatial closures, deterrent devices, gear modifications, etc.) will vary depending on region and species, such as using acoustic deterrents in river ecosystems or electric barriers in the open ocean. 

This summary study provides the  first global meta-analyses  of small- and large-scale gillnet odontocete bycatch  during 1990–2020, and estimates that annual gillnet bycatch in this timespan is 50,000 odontocetes. It highlights the need for improved management of gillnet fisheries worldwide, noting that effective methods (spatial closures, deterrent devices, gear modifications, etc.) will vary depending on region and species, such as using acoustic deterrents in river ecosystems or electric barriers in the open ocean. 

This summary study provides the  first global meta-analyses  of small- and large-scale gillnet odontocete bycatch  during 1990–2020, and estimates that annual gillnet bycatch in this timespan is 50,000 odontocetes. It highlights the need for improved management of gillnet fisheries worldwide, noting that effective methods (spatial closures, deterrent devices, gear modifications, etc.) will vary depending on region and species, such as using acoustic deterrents in river ecosystems or electric barriers in the open ocean. 

In the Indian Ocean tuna gillnet fisheries, cetacean bycatch is very high, but it is understudied and poorly understood.

In the Indian Ocean tuna gillnet fisheries, cetacean bycatch is very high, but it is understudied and poorly understood.

In the Indian Ocean tuna gillnet fisheries, cetacean bycatch is very high, but it is understudied and poorly understood.

In the Indian Ocean tuna gillnet fisheries, cetacean bycatch is very high, but it is understudied and poorly understood.

In the Indian Ocean tuna gillnet fisheries, cetacean bycatch is very high, but it is understudied and poorly understood.

In the Indian Ocean tuna gillnet fisheries, cetacean bycatch is very high, but it is understudied and poorly understood.

This study recorded and analyzed vocalizations of green sea turtles off the Carribbean island of Martinique, and identified which sounds seemed to be linked to flight, fear, and social aspects. When these recordings of sea turtles were played to wild sea turtles, they demonstrated behavioral responses (vigilance and/or escape) to the sounds they produce, suggesting that acoustic deterrents may be effective to reduce sea turtle bycatch. Sea turtles did not respond to synthetic or geophonic noises.

This study recorded and analyzed vocalizations of green sea turtles off the Carribbean island of Martinique, and identified which sounds seemed to be linked to flight, fear, and social aspects. When these recordings of sea turtles were played to wild sea turtles, they demonstrated behavioral responses (vigilance and/or escape) to the sounds they produce, suggesting that acoustic deterrents may be effective to reduce sea turtle bycatch. Sea turtles did not respond to synthetic or geophonic noises.

This study recorded and analyzed vocalizations of green sea turtles off the Carribbean island of Martinique, and identified which sounds seemed to be linked to flight, fear, and social aspects. When these recordings of sea turtles were played to wild sea turtles, they demonstrated behavioral responses (vigilance and/or escape) to the sounds they produce, suggesting that acoustic deterrents may be effective to reduce sea turtle bycatch. Sea turtles did not respond to synthetic or geophonic noises.

This study recorded and analyzed vocalizations of green sea turtles off the Carribbean island of Martinique, and identified which sounds seemed to be linked to flight, fear, and social aspects. When these recordings of sea turtles were played to wild sea turtles, they demonstrated behavioral responses (vigilance and/or escape) to the sounds they produce, suggesting that acoustic deterrents may be effective to reduce sea turtle bycatch. Sea turtles did not respond to synthetic or geophonic noises.

This study recorded and analyzed vocalizations of green sea turtles off the Carribbean island of Martinique, and identified which sounds seemed to be linked to flight, fear, and social aspects. When these recordings of sea turtles were played to wild sea turtles, they demonstrated behavioral responses (vigilance and/or escape) to the sounds they produce, suggesting that acoustic deterrents may be effective to reduce sea turtle bycatch. Sea turtles did not respond to synthetic or geophonic noises.