Conservation Evidence: Evidence Data

Collected Evidence: Collected Evidence: Cease or prohibit all types of fishing We found no studies that evaluated the effects on reptile populations of ceasing or prohibiting all types of fishing. ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3543https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3543Tue, 07 Dec 2021 17:21:27 +0000Collected Evidence: Collected Evidence: Cease or prohibit commercial fishing We found no studies that evaluated the effects on reptile populations of ceasing or prohibiting commercial fishing. ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3544https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3544Tue, 07 Dec 2021 17:22:46 +0000Collected Evidence: Collected Evidence: Establish temporary fishery closures Three studies evaluated the effects of establishing temporary fishery closures on reptile populations. Two studies were in the USA and one was in Brazil. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (3 STUDIES) Abundance (1 study): One site comparison study in Brazil found that areas where a fishing agreement was implemented that involved seasonal fishing restrictions along with a wider set of measures had more river turtles than areas that did not implement the agreement. Survival (2 studies): One replicated, before-and-after study in the USA found that during seasonal closures of shrimp trawling there were fewer lethal strandings of loggerhead and Kemp’s ridley turtles. One study in the USA found that following the re-opening of a swordfish long-line fishery with turtle catch limits in place, loggerhead turtle bycatch reached the annual catch limit in two of three years, and when the limit was reached the fishery was closed for the rest of the year. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3545https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3545Tue, 07 Dec 2021 17:27:09 +0000Collected Evidence: Collected Evidence: Limit or prohibit specific fishing methods One study evaluated the effects of limiting or prohibiting specific fishing methods on reptile populations. This study was in Brazil. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Abundance (1 study): One site comparison study in Brazil found that in areas where a fishing agreement was implemented that involved limiting the use of gill nets along with a wider suit of measures had more river turtles than areas that did not implement the agreement. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3546https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3546Wed, 08 Dec 2021 09:26:10 +0000Collected Evidence: Collected Evidence: Deploy fishing gear at different depths Three studies evaluated the effects of deploying fishing gear at different depths on reptile populations. One study was in each of Canada, off the coast of Mexico and the Atlantic. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Survival (1 study): One replicated, randomized, paired study in Canada found that no turtles died in floated nets, but some died in submerged nets. Condition (1 study): One replicated, randomized, paired study in Canada found that turtles caught in floated nets were less at risk of drowning than those caught in submerged nets. BEHAVIOUR (0 STUDIES) OTHER (3 STUDIES) Unwanted catch (3 studies): Two of three studies (including two replicated studies) in Canada, Mexico and the Atlantic found that bottom-set fishing nets with fewer buoys caught fewer sea turtles than standard nets or that fewer loggerhead turtles were caught when longline hooks were set below 22 m deep, but the number of leatherback turtles caught was unaffected by hook depth. The other study found that floated and submerged nets caught a similar number of turtle species. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3547https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3547Wed, 08 Dec 2021 09:29:51 +0000