Unanswered Forum Topics

Successful collaborative trials of simple gear modifications to reduce entanglement of whales and other megafauna in Scotland’s static pot (creel) fisheries

Study Type
Field study in the wild
Location
Scotland
Target catch
crustaceans (langoustine & crab)
Effect on bycatch species
not investigated, but authors report, "the SEA interview data clearly indicated that loops of groundline in the water column entangle megafauna, it is reasonable to assume that removing those loops would reduce entanglement risk"
Effect on target catch
none reported
Reduction technique
Fishing Gear

Successful collaborative trials of simple gear modifications to reduce entanglement of whales and other megafauna in Scotland’s static pot (creel) fisheries

Study Type
Field study in the wild
Location
Scotland
Target catch
crustaceans (langoustine & crab)
Effect on bycatch species
not investigated, but authors report, "the SEA interview data clearly indicated that loops of groundline in the water column entangle megafauna, it is reasonable to assume that removing those loops would reduce entanglement risk"
Effect on target catch
none reported
Reduction technique
Fishing Gear

Successful collaborative trials of simple gear modifications to reduce entanglement of whales and other megafauna in Scotland’s static pot (creel) fisheries

Submitted by allykristan on

The authors worked with creel fishers to trial and assess whether sinking rope was practical to fish with in Scottish inshore waters, and therefore to reduce entanglement risk of minke whales, humpback whales, and other megafauna. Overall, the fishers reported few problems with the modified gear, and the gear performed well underwater according to Remotely Operated Vehicle (ROV) footage and sensors. Sinking rope may be a simple, viable option to reduce entanglement risk in the Scottish creel fishery.

 

 

 

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Successful collaborative trials of simple gear modifications to reduce entanglement of whales and other megafauna in Scotland’s static pot (creel) fisheries

Submitted by allykristan on

The authors worked with creel fishers to trial and assess whether sinking rope was practical to fish with in Scottish inshore waters, and therefore to reduce entanglement risk of minke whales, humpback whales, and other megafauna. Overall, the fishers reported few problems with the modified gear, and the gear performed well underwater according to Remotely Operated Vehicle (ROV) footage and sensors. Sinking rope may be a simple, viable option to reduce entanglement risk in the Scottish creel fishery.

 

 

 

Read More

Successful collaborative trials of simple gear modifications to reduce entanglement of whales and other megafauna in Scotland’s static pot (creel) fisheries

Submitted by allykristan on

The authors worked with creel fishers to trial and assess whether sinking rope was practical to fish with in Scottish inshore waters, and therefore to reduce entanglement risk of minke whales, humpback whales, and other megafauna. Overall, the fishers reported few problems with the modified gear, and the gear performed well underwater according to Remotely Operated Vehicle (ROV) footage and sensors. Sinking rope may be a simple, viable option to reduce entanglement risk in the Scottish creel fishery.

 

 

 

Read More

Successful collaborative trials of simple gear modifications to reduce entanglement of whales and other megafauna in Scotland’s static pot (creel) fisheries

Submitted by allykristan on

The authors worked with creel fishers to trial and assess whether sinking rope was practical to fish with in Scottish inshore waters, and therefore to reduce entanglement risk of minke whales, humpback whales, and other megafauna. Overall, the fishers reported few problems with the modified gear, and the gear performed well underwater according to Remotely Operated Vehicle (ROV) footage and sensors. Sinking rope may be a simple, viable option to reduce entanglement risk in the Scottish creel fishery.

 

 

 

Read More

Successful collaborative trials of simple gear modifications to reduce entanglement of whales and other megafauna in Scotland’s static pot (creel) fisheries

Submitted by allykristan on

The authors worked with creel fishers to trial and assess whether sinking rope was practical to fish with in Scottish inshore waters, and therefore to reduce entanglement risk of minke whales, humpback whales, and other megafauna. Overall, the fishers reported few problems with the modified gear, and the gear performed well underwater according to Remotely Operated Vehicle (ROV) footage and sensors. Sinking rope may be a simple, viable option to reduce entanglement risk in the Scottish creel fishery.

 

 

 

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Mexican authorities remove illegal gill nets set to catch totoaba

Mexican authorities physically removed gillnets used in the illegal fishery for critically endangered totoaba. These nets are also responsible for causing the bycatch of the critically endangered vaquita porpoise, of which only an estimated 10 individuals remain.

See https://www.seafoodsource.com/news/environment-sustainability/mexico-law-enforcement-remove-illegal-gillnets-rescue-surviving-totoaba?utm_source=marketo&utm_medium=email&utm_campaign=newsletter&utm_content=newsletter&mkt_tok=NzU2LUZXSi0wNjEAAAGZlqd24s_tjC32w0yoGEFGQ9c8osaDC-uQWeeHoc7R2rQ4_TkKb5NArexd5YspznuTJc4hRwxFUswfOdOWkDeHxeN9nm3wzQ7TISGztLXL2qYb_lYqMw

Mexican authorities physically removed gillnets used in the illegal fishery for critically endangered totoaba. These nets are also responsible for causing the bycatch of the critically endangered vaquita porpoise, of which only an estimated 10 individuals remain.

A Meta-Analysis of Bycatch Mitigation Methods for Sea Turtles Vulnerable to Swordfish and Tuna Longline Fisheries

Submitted by allykristan on

This summary study is a meta-analysis of experimental results from 41 stidues that investigated bycatch mitigation methods for sea turtles in tuna and swordfish longline fisheries. Circle hooks demonstrated effectiveness in reducing sea turtle bycatch; however, these hooks also usually use fish bait instead of hook bait, which may also be leading to the reduction in bycatch. Additionally, outcomes varied between the Atlantic, Pacific and Mediterannean which highlights the importance of regional data collection.

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A Meta-Analysis of Bycatch Mitigation Methods for Sea Turtles Vulnerable to Swordfish and Tuna Longline Fisheries

Submitted by allykristan on

This summary study is a meta-analysis of experimental results from 41 stidues that investigated bycatch mitigation methods for sea turtles in tuna and swordfish longline fisheries. Circle hooks demonstrated effectiveness in reducing sea turtle bycatch; however, these hooks also usually use fish bait instead of hook bait, which may also be leading to the reduction in bycatch. Additionally, outcomes varied between the Atlantic, Pacific and Mediterannean which highlights the importance of regional data collection.

Read More

A Meta-Analysis of Bycatch Mitigation Methods for Sea Turtles Vulnerable to Swordfish and Tuna Longline Fisheries

Submitted by allykristan on

This summary study is a meta-analysis of experimental results from 41 stidues that investigated bycatch mitigation methods for sea turtles in tuna and swordfish longline fisheries. Circle hooks demonstrated effectiveness in reducing sea turtle bycatch; however, these hooks also usually use fish bait instead of hook bait, which may also be leading to the reduction in bycatch. Additionally, outcomes varied between the Atlantic, Pacific and Mediterannean which highlights the importance of regional data collection.

Read More

A Meta-Analysis of Bycatch Mitigation Methods for Sea Turtles Vulnerable to Swordfish and Tuna Longline Fisheries

Submitted by allykristan on

This summary study is a meta-analysis of experimental results from 41 stidues that investigated bycatch mitigation methods for sea turtles in tuna and swordfish longline fisheries. Circle hooks demonstrated effectiveness in reducing sea turtle bycatch; however, these hooks also usually use fish bait instead of hook bait, which may also be leading to the reduction in bycatch. Additionally, outcomes varied between the Atlantic, Pacific and Mediterannean which highlights the importance of regional data collection.

Read More

A Meta-Analysis of Bycatch Mitigation Methods for Sea Turtles Vulnerable to Swordfish and Tuna Longline Fisheries

Submitted by allykristan on

This summary study is a meta-analysis of experimental results from 41 stidues that investigated bycatch mitigation methods for sea turtles in tuna and swordfish longline fisheries. Circle hooks demonstrated effectiveness in reducing sea turtle bycatch; however, these hooks also usually use fish bait instead of hook bait, which may also be leading to the reduction in bycatch. Additionally, outcomes varied between the Atlantic, Pacific and Mediterannean which highlights the importance of regional data collection.

Read More

A Meta-Analysis of Bycatch Mitigation Methods for Sea Turtles Vulnerable to Swordfish and Tuna Longline Fisheries

Submitted by allykristan on

This summary study is a meta-analysis of experimental results from 41 stidues that investigated bycatch mitigation methods for sea turtles in tuna and swordfish longline fisheries. Circle hooks demonstrated effectiveness in reducing sea turtle bycatch; however, these hooks also usually use fish bait instead of hook bait, which may also be leading to the reduction in bycatch. Additionally, outcomes varied between the Atlantic, Pacific and Mediterannean which highlights the importance of regional data collection.

Read More

Evaluating the efficacy of various types of guarding nets in minimizing bycatch in a Mediterranean trammel net fishery

Study Type
Field study in the wild
Location
Thermaikos Gulf, Mediterranean Sea, Greece
Target catch
common cuttlefish (Sepia officinalis)
Effect on bycatch species
reduced catch of crustaceans, specifically spider crabs
Effect on target catch
the guarding net that was smaller (20 mm) and tighly rigged to the main net did not reduce cuttlefish catch, but larger nets and loose rigs did reduce target catch
Bycatch species
Reduction technique
Fishing Gear

Evaluating the efficacy of various types of guarding nets in minimizing bycatch in a Mediterranean trammel net fishery

Study Type
Field study in the wild
Location
Thermaikos Gulf, Mediterranean Sea, Greece
Target catch
common cuttlefish (Sepia officinalis)
Effect on bycatch species
reduced catch of crustaceans, specifically spider crabs
Effect on target catch
the guarding net that was smaller (20 mm) and tighly rigged to the main net did not reduce cuttlefish catch, but larger nets and loose rigs did reduce target catch
Bycatch species
Reduction technique
Fishing Gear

Evaluating the efficacy of various types of guarding nets in minimizing bycatch in a Mediterranean trammel net fishery

Study Type
Field study in the wild
Location
Thermaikos Gulf, Mediterranean Sea, Greece
Target catch
common cuttlefish (Sepia officinalis)
Effect on bycatch species
reduced catch of crustaceans, specifically spider crabs
Effect on target catch
the guarding net that was smaller (20 mm) and tighly rigged to the main net did not reduce cuttlefish catch, but larger nets and loose rigs did reduce target catch
Bycatch species
Reduction technique
Fishing Gear

Evaluating the efficacy of various types of guarding nets in minimizing bycatch in a Mediterranean trammel net fishery

Submitted by allykristan on

This study examined the effectiveness of various sizes of guarding nets to reduce bycatch (specifically crustaceans) in cuttlefish trammel net fisheries. All nets did siginificantly reduce crustacean capture, notably spider crabs, but only the smaller mesh guarding net (20mm instead of 40mm) had no significant impact on target cuttlefish catch. However, guardnets may benefit fishers overall by avoiding later delays in disentangling bycatch and damage to gear. 

 

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Evaluating the efficacy of various types of guarding nets in minimizing bycatch in a Mediterranean trammel net fishery

Submitted by allykristan on

This study examined the effectiveness of various sizes of guarding nets to reduce bycatch (specifically crustaceans) in cuttlefish trammel net fisheries. All nets did siginificantly reduce crustacean capture, notably spider crabs, but only the smaller mesh guarding net (20mm instead of 40mm) had no significant impact on target cuttlefish catch. However, guardnets may benefit fishers overall by avoiding later delays in disentangling bycatch and damage to gear. 

 

Read More