Collected Evidence: Collected Evidence: Selectively avoid unwanted fish based on temperature distribution We found no studies that evaluated the effects of selectively avoiding fish by their temperature distributions on marine fish populations. ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects.Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2685https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2685Mon, 30 Nov 2020 16:56:00 +0000Collected Evidence: Collected Evidence: Reduce the hauling speed of a trawl net We found no studies that evaluated the effects of reducing the hauling speed of a trawl net on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects.Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2688https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2688Wed, 02 Dec 2020 10:47:28 +0000Collected Evidence: Collected Evidence: Use a different method to sort or bring catch onboard We found no studies that evaluated the effects of using different methods to sort or bring catches onboard vessels on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects.Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2689https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2689Wed, 02 Dec 2020 14:45:13 +0000Collected Evidence: Collected Evidence: Legislate to oblige fishers to retain and land all catch of species managed by quotas We found no studies that evaluated the effects of legislating to oblige fishers to retain and land all catch of quota species on marine fish populations. ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects.Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2694https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2694Wed, 02 Dec 2020 16:24:14 +0000Collected Evidence: Collected Evidence: Release fish that are carrying eggs or live young We found no studies that evaluated the effects of releasing fish that are carrying eggs or live young on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2733https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2733Tue, 02 Feb 2021 12:04:35 +0000Collected Evidence: Collected Evidence: Release males of species known to guard nests during breeding season We found no studies that evaluated the effects of releasing males that guard nests during the breeding season on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2734https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2734Tue, 02 Feb 2021 12:09:39 +0000Collected Evidence: Collected Evidence: Set a maximum landing size for commercially fished species We found no studies that evaluated the effects of setting a maximum landing size for commercially fished species on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2736https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2736Tue, 02 Feb 2021 14:40:24 +0000Collected Evidence: Collected Evidence: Specify a size range of capture for commercially fished species We found no studies that evaluated the effects of specifying a size range of commercially retained fish species on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2737https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2737Tue, 02 Feb 2021 14:56:52 +0000Collected Evidence: Collected Evidence: Deploy patrol boats We found no studies that evaluated the effects of deploying patrol boats on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2738https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2738Tue, 02 Feb 2021 15:08:05 +0000Collected Evidence: Collected Evidence: Organise vessel monitoring systems We found no studies that evaluated the effects of organising monitoring systems on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2739https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2739Tue, 02 Feb 2021 15:11:19 +0000Collected Evidence: Collected Evidence: Use human observers onboard fishing vessels to monitor catches and discards We found no studies that evaluated the effects of using human observers onboard fishing vessels to monitor catches and discards on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2740https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2740Tue, 02 Feb 2021 15:15:25 +0000Collected Evidence: Collected Evidence: Use citizen surveillance to report illegal fishing We found no studies that evaluated the effects of using citizen surveillance to report illegal fishing on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects.Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2741https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2741Tue, 02 Feb 2021 15:37:26 +0000Collected Evidence: Collected Evidence: Enforce port controls We found no studies that evaluated the effects of enforcing port controls on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2766https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2766Wed, 03 Feb 2021 10:03:11 +0000Collected Evidence: Collected Evidence: Use onboard CCTV for monitoring catches and discards We found no studies that evaluated the effects of using onboard CCTV monitoring on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2767https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2767Wed, 03 Feb 2021 10:05:44 +0000Collected Evidence: Collected Evidence: Use flags to signal the legal nationality of a fishing vessel We found no studies that evaluated the effects of using a flag to identify the legal nationality of a fishing vessel on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2768https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2768Wed, 03 Feb 2021 10:10:41 +0000Collected Evidence: Collected Evidence: Eliminate flags of convenience We found no studies that evaluated the effects of eliminating flags of convenience on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2769https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2769Wed, 03 Feb 2021 10:27:16 +0000Collected Evidence: Collected Evidence: Establish open and transparent reporting of fishing effort data We found no studies that evaluated the effects of establishing open and transparent fishing effort data on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2770https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2770Wed, 03 Feb 2021 10:37:50 +0000Collected Evidence: Collected Evidence: Use methods to trace the source of catch We found no studies that evaluated the effects of using methods to trace the sources of catches on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2771https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2771Wed, 03 Feb 2021 11:18:06 +0000Collected Evidence: Collected Evidence: Issue high fines and penalties for non-compliance with fisheries regulations We found no studies that evaluated the effects of issuing high fines and penalties for non-compliance with fisheries regulations on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2772https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2772Wed, 03 Feb 2021 11:19:38 +0000Collected Evidence: Collected Evidence: License fish buyers We found no studies that evaluated the effects of licensing fish buyers on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2773https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2773Wed, 03 Feb 2021 11:25:34 +0000Collected Evidence: Collected Evidence: Include fishers in management groups for marine protected areas We found no studies that evaluated the effects of including fishers in management fora for marine protected areas on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects.Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2809https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2809Fri, 05 Feb 2021 10:00:36 +0000Collected Evidence: Collected Evidence: Involve fishers in designing and trialling new gear types to encourage uptake of more selective fishing gear We found no studies that evaluated the effects of involving fishers in designing and trialling new gear types on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2810https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2810Fri, 05 Feb 2021 10:02:04 +0000Collected Evidence: Collected Evidence: Introduce economic incentives to encourage sustainable fishing We found no studies that evaluated the effects of introducing economic incentives to encourage sustainable fishing on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2811https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2811Fri, 05 Feb 2021 10:03:40 +0000Collected Evidence: Collected Evidence: Involve stakeholders in allocation of harvest rights We found no studies that evaluated the effects of involving stakeholders in the allocation of harvest rights on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2812https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2812Fri, 05 Feb 2021 10:07:06 +0000Collected Evidence: Collected Evidence: Engage stakeholders/fishers in scientific research and data collection We found no studies that evaluated the effects of engaging fishers in scientific data collection on marine fish populations.  ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects.Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2813https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2813Fri, 05 Feb 2021 10:08:31 +0000
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

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The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

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