Collected Evidence: Collected Evidence: Limit the amount of stabilisation material used We found no studies that evaluated the effects of limiting the amount of stabilisation material used 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 effectsCollected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2057https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2057Mon, 21 Oct 2019 13:38:24 +0100Collected Evidence: Collected Evidence: Leave pipelines and infrastructure in place following decommissioning We found no studies that evaluated the effects of leaving pipelines and infrastructure in place following decommissioning 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%2Fconservationevidencejournal.com%2Factions%2F2059https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2059Mon, 21 Oct 2019 13:41:41 +0100Collected Evidence: Collected Evidence: Limit the thickness of drill cuttings We found no studies that evaluated the effects of limiting the thickness of drill cuttings 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%2Fconservationevidencejournal.com%2Factions%2F2065https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2065Mon, 21 Oct 2019 13:47:49 +0100Collected Evidence: Collected Evidence: Leave mining waste (tailings) in place following cessation of disposal operations One study examined the effects of leaving mining waste (tailings) in place following cessation of disposal operations on subtidal benthic invertebrate populations. The study was in Auke Bay (USA).   COMMUNITY RESPONSE (1 STUDY) Overall community composition (1 study): One replicated, paired, controlled study in Auke Bay found that plots where mine tailings were left in place had similar invertebrate community composition as plots where tailings had been removed, but both had different communities to plots of natural sediment. Overall richness/diversity (1 study): One replicated, paired, controlled study in Auke Bay found that plots where mine tailings were left in place had similar invertebrate species richness as plots where tailings had been removed, but both had lower richness compared to plots of natural sediment. POPULATION RESPONSE (1 STUDY) Overall abundance (1 study): One replicated, paired, controlled study in Auke Bay found that plots where mine tailings were left in place had similar invertebrate overall abundance and biomass as plots where tailings had been removed. While plots with and without tailings had similar abundances to plots of natural sediment, their biomasses were higher. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2077https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2077Mon, 21 Oct 2019 14:45:29 +0100Collected Evidence: Collected Evidence: Limit the number and/or extent of, or prohibit additional, renewable energy installations in an area We found no studies that evaluated the effects of limiting the number and/or extent of, or prohibit additional, renewable energy installations in an area 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%2Fconservationevidencejournal.com%2Factions%2F2078https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2078Mon, 21 Oct 2019 14:46:10 +0100Collected Evidence: Collected Evidence: Leave utility and service lines in place after decommissioning We found no studies that evaluated the effects of leaving utility and service lines in place after decommissioning 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%2Fconservationevidencejournal.com%2Factions%2F2085https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2085Mon, 21 Oct 2019 14:51:53 +0100Collected Evidence: Collected Evidence: Limit, cease or prohibit recreational boating We found no studies that evaluated the effects of limiting, ceasing or prohibiting recreational fishing and/or harvesting 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%2Fconservationevidencejournal.com%2Factions%2F2088https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2088Mon, 21 Oct 2019 14:59:55 +0100Collected Evidence: Collected Evidence: Limit, cease or prohibit anchoring from ships/boats/vessels We found no studies that evaluated the effects of setting limits, ceasing or prohibitinganchroing from ships/boats/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%2Fconservationevidencejournal.com%2Factions%2F2089https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2089Mon, 21 Oct 2019 15:19:19 +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%2Fconservationevidencejournal.com%2Factions%2F2108https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F2109https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F2110https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F2111https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F2112https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F2113https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2113Tue, 22 Oct 2019 09:43:38 +0100Collected Evidence: Collected Evidence: Limit the maximum weight and/or size of bobbins on the footrope We found no studies that evaluated the effects of limiting the maximum weight and/or size of bobbins on the footrope 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%2Fconservationevidencejournal.com%2Factions%2F2130https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2130Tue, 22 Oct 2019 10:26:05 +0100Collected Evidence: Collected Evidence: Limit, cease or prohibit access for recreational purposes We found no studies that evaluated the effects of limiting, ceasing or prohibiting access for recreational purposes 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%2Fconservationevidencejournal.com%2Factions%2F2152https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2152Tue, 22 Oct 2019 12:02:44 +0100Collected Evidence: Collected Evidence: Limit, cease or prohibit recreational diving We found no studies that evaluated the effects of limiting, ceasing or prohibiting recreational diving 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%2Fconservationevidencejournal.com%2Factions%2F2153https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2153Tue, 22 Oct 2019 12:04:18 +0100Collected Evidence: Collected Evidence: Limit, cease or prohibit ballast water exchange in specific areas We found no studies that evaluated the effects of limiting, ceasing or prohibiting ballast water exchange in specific areas 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%2Fconservationevidencejournal.com%2Factions%2F2164https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2164Tue, 22 Oct 2019 12:14:28 +0100Collected Evidence: Collected Evidence: Limit the amount of storm wastewater overflow We found no studies that evaluated the effects of limiting the amount of storm wastewater overflow 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%2Fconservationevidencejournal.com%2Factions%2F2181https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2181Tue, 22 Oct 2019 12:40:17 +0100Collected Evidence: Collected Evidence: Leave a fallow period during fish/shellfish farming Three studies examined the effects of leaving a fallow period during fish farming on subtidal benthic invertebrate populations. Two studies were in the Tasman Sea (Australia), and one in the North Pacific Ocean (USA).   COMMUNITY RESPONSE (3 STUDIES) Overall community composition (2 study): Two replicated, before-and-after, site comparison study in the Tasman Sea found that after a fallow period invertebrate community composition became similar to that occurring before the fish were added but remained different to communities at sites without fish farms. Worm community composition (1 study): One replicated, before-and-after, site comparison study in the North Pacific Ocean found that after a fallow period polychaete worm community composition changed but remained different to communities at sites without fish farms. Worm richness/diversity (1 study): One replicated, before-and-after, site comparison study in the North Pacific Ocean found that after a fallow period polychaete worm diversity did not change and remained lower compared to sites without fish farms. POPULATION RESPONSE (2 STUDIES) Worm abundance (2 studies): Two replicated, before-and-after, site comparison studies in the Tasman Sea and the North Pacific Ocean found that following a fallow period, abundances of pollution-indicator polychaete worms decreased, but remained higher compared to sites without fish farms. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2191https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2191Tue, 22 Oct 2019 13:02:17 +0100Collected Evidence: Collected Evidence: Limit, cease or prohibit discharge of solid waste overboard from vessels We found no studies that evaluated the effects of limiting, ceasing or prohibiting discharge of solid waste overboard from 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%2Fconservationevidencejournal.com%2Factions%2F2202https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2202Tue, 22 Oct 2019 13:13:36 +0100Collected Evidence: Collected Evidence: Install stormwater traps or grids We found no studies that evaluated the effects of installing stormwater traps or grids 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%2Fconservationevidencejournal.com%2Factions%2F2203https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2203Tue, 22 Oct 2019 13:14:36 +0100Collected Evidence: Collected Evidence: Limit, cease or prohibit industrial and urban lighting at night We found no studies that evaluated the effects of limiting, ceasing or prohibiting industrial and urban lighting at night 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%2Fconservationevidencejournal.com%2Factions%2F2208https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2208Tue, 22 Oct 2019 13:20:07 +0100Collected Evidence: Collected Evidence: Install a pump on or above the seabed in docks, ports, harbour, or other coastal areas to increase oxygen concentration One study examined the effects of installing a pump on or above the seabed in docks, ports, harbour, or other coastal areas to increase oxygen concentration on subtidal benthic invertebrate populations. The study was in Osaka Bay (Japan).   COMMUNITY RESPONSE (1 STUDY) Overall richness/diversity (1 study): One before-and-after study in Osaka Bay found that installing a pump on the seabed of a port to mix seawater and increase oxygen concentration led to an increase in combined invertebrate and fish species richness. POPULATION RESPONSE (1 STUDY) Overall abundance (1 study): One before-and-after study in Osaka Bay found that installing a pump on the seabed of a port to mix seawater and increase oxygen concentration led to an increase in combined invertebrates and fish abundance. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2252https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2252Wed, 23 Oct 2019 09:52:56 +0100Collected Evidence: Collected Evidence: Landscape or artificially enhance the seabed (natural habitats) Three studies examined the effects of landscaping or artificially enhancing the seabed on subtidal benthic invertebrates. One study was in the North Sea (UK), one in the Westerschelde estuary (Netherlands), and one in the Persian Gulf (Kuwait).   COMMUNITY RESPONSE (3 STUDIES) Overall community composition (2 studies): One controlled, before-and after study in the North Sea found that following addition of gravels, invertebrate community composition became more similar to natural seabed communities. One before-and-after, site comparison study in the Westerschelde estuary found no change in invertebrate community composition following addition of sedimentary dredge material. Overall richness/diversity (3 studies): One controlled, before-and after study in the North Sea and one site comparison study in the Persian Gulf found that invertebrate species richness increased following addition of gravels or coral and limestone rubbles, and one also found that richness became similar to natural seabed. One before-and-after, site comparison study in the Westerschelde estuary found no change in species richness following addition of sedimentary dredged material. POPULATION RESPONSE (3 STUDIES) Overall abundance (3 studies): One controlled, before-and after study in the North Sea and one site comparison study in the Persian Gulf found that invertebrate abundance and biomass increased following addition of gravels or coral and limestone rubbles, and one also found that abundance became similar to natural seabed. One before-and-after, site comparison study in the Westerschelde estuary found no change in invertebrate abundance and biomass following addition of sedimentary dredge material. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2253https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2253Wed, 23 Oct 2019 09:56:38 +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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