Collected Evidence: Collected Evidence: Establish territorial user rights for fisheries One study examined the effects of establishing territorial user rights for fisheries on subtidal benthic invertebrate populations. The study was in the South Pacific Ocean (Chile).   COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Mollusc reproductive success (1 study): One site comparison study in South Pacific Ocean found that an area with territorial user rights for fisheries had larger-sized and more numerous egg capsules, and more larvae of the Chilean abalone up to 21 months after establishing fishing restrictions compared to an open-access area. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2104https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2104Tue, 22 Oct 2019 09:32:32 +0100Collected Evidence: Collected Evidence: Set commercial catch quotas We found no studies that evaluated the effects of setting commercial catch quotas on subtidal benthic invertebrate 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%2F2105https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2105Tue, 22 Oct 2019 09:33:24 +0100Collected Evidence: Collected Evidence: Set habitat credits systems We found no studies that evaluated the effects of setting habitat credits systems on subtidal benthic invertebrate 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%2F2106https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2106Tue, 22 Oct 2019 09:34:13 +0100Collected Evidence: Collected Evidence: Set commercial catch quotas and habitat credits systems We found no studies that evaluated the effects of setting commercial catch quotas and habitat credits systems on subtidal benthic invertebrate 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%2F2107https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2107Tue, 22 Oct 2019 09:34:53 +0100Collected Evidence: Collected Evidence: Limit the number of fishing days We found no studies that evaluated the effects of limiting the number of fishing days on subtidal benthic invertebrate 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%2F2108https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2108Tue, 22 Oct 2019 09:35:36 +0100Collected Evidence: Collected Evidence: Limit the number of fishing vessels We found no studies that evaluated the effects of limiting the number of fishing vessels on subtidal benthic invertebrate 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%2F2109https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2109Tue, 22 Oct 2019 09:36:55 +0100Collected Evidence: Collected Evidence: Limit the number of traps per fishing vessels We found no studies that evaluated the effects of limiting the number of traps per fishing vessels on subtidal benthic invertebrate 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%2F2110https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2110Tue, 22 Oct 2019 09:37:40 +0100Collected Evidence: Collected Evidence: Limit the density of traps We found no studies that evaluated the effects of limiting the density of traps on subtidal benthic invertebrate 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%2F2111https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2111Tue, 22 Oct 2019 09:38:18 +0100Collected Evidence: Collected Evidence: Install physical barriers to prevent trawling One study examined the effects of installing physical barriers to prevent trawling on subtidal benthic invertebrate populations. The study was in the Bay of Biscay (Spain).   COMMUNITY RESPONSE (1 STUDY) Overall community composition (1 study): One before-and-after study in the Bay of Biscay found that one to four years after installing artificial reefs as physical barriers to prevent trawling invertebrate community composition changed. POPULATION RESPONSE (1 STUDY) Overall abundance (1 study): One before-and-after study in the Bay of Biscay found that one to four years after installing artificial reefs as physical barriers to prevent trawling overall invertebrate biomass increased. Echinoderm abundance (1 study): One before-and-after study in the Bay of Biscay found that one to four years after installing artificial reefs as physical barriers to prevent trawling the biomass of sea urchins and starfish increased. Molluscs abundance (1 study): One before-and-after study in the Bay of Biscay found that one to four years after installing artificial reefs as physical barriers to prevent trawling the biomass of gastropods (sea snails), of one species of cuttlefish, and of two species of octopus increased. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2112https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2112Tue, 22 Oct 2019 09:40:04 +0100Collected Evidence: Collected Evidence: Introduce catch shares We found no studies that evaluated the effects of introducing catch shares on subtidal benthic invertebrate 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%2F2113https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2113Tue, 22 Oct 2019 09:43:38 +0100Collected Evidence: Collected Evidence: Purchase fishing permits and/or vessels from fishers We found no studies that evaluated the effects of purchasing fishing permits and/or vessels from fishers on subtidal benthic invertebrate 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%2F2114https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2114Tue, 22 Oct 2019 09:44:16 +0100Collected Evidence: Collected Evidence: Eliminate fisheries subsidies that encourage overfishing We found no studies that evaluated the effects of eliminating fisheries subsidies that encourage overfishing on subtidal benthic invertebrate 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%2F2115https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2115Tue, 22 Oct 2019 09:46:37 +0100
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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