Telling the same story: Fishers and landing data reveal changes in fisheries on the Southeastern Brazilian Coast.
An understanding of the effects of fishing on marine ecosystems relies on information about the conserved state of these environments. Non-conventional approaches such as the use of historical data and local ecological knowledge can provide information and help adjust our references of changes in th...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2021-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0252391 |
| _version_ | 1831759383969660928 |
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| author | Carine O Fogliarini Carlos E L Ferreira Jéssica Bornholdt Moysés C Barbosa Vinicius J Giglio Mariana G Bender |
| author_facet | Carine O Fogliarini Carlos E L Ferreira Jéssica Bornholdt Moysés C Barbosa Vinicius J Giglio Mariana G Bender |
| author_sort | Carine O Fogliarini |
| collection | DOAJ |
| description | An understanding of the effects of fishing on marine ecosystems relies on information about the conserved state of these environments. Non-conventional approaches such as the use of historical data and local ecological knowledge can provide information and help adjust our references of changes in the environment. Also, the combination of different types of data can indicate a fisheries trend that would be undetectable when evaluated separately. Here we investigated changes in fisher's perceptions regarding overexploited and new target species in artisanal fisheries in a secular fishing village of the subtropical, southeastern Brazilian coast. We identified temporal changes in landings and in the mean trophic level (MTL) of high trophic level species (≥ 3.5 and >4) over 16 years. Fishers' knowledge revealed shifts in perception associated with years of fishing practice. More experienced fishers recognized a greater number of overexploited and new target species than fishers in the beginning of their careers. Landing data has revealed declining trends of 72% for five mesopredators species. Due to the overfishing of mesopredators, there was a shift in target species, towards fish that were previously discarded. Temporal changes in landings and in the MTL metric are concordant with previous reports on the overexploitation of species caught by local fishers. Our work reveals that multiple sources of information can be combined to establish historical baselines and improve the detection of change in marine ecosystems. |
| first_indexed | 2024-12-22T01:06:13Z |
| format | Article |
| id | doaj.art-2d4c15fb5ff842a396522c6385e0edd2 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-22T01:06:13Z |
| publishDate | 2021-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-2d4c15fb5ff842a396522c6385e0edd22022-12-21T18:44:05ZengPublic Library of Science (PLoS)PLoS ONE1932-62032021-01-01166e025239110.1371/journal.pone.0252391Telling the same story: Fishers and landing data reveal changes in fisheries on the Southeastern Brazilian Coast.Carine O FogliariniCarlos E L FerreiraJéssica BornholdtMoysés C BarbosaVinicius J GiglioMariana G BenderAn understanding of the effects of fishing on marine ecosystems relies on information about the conserved state of these environments. Non-conventional approaches such as the use of historical data and local ecological knowledge can provide information and help adjust our references of changes in the environment. Also, the combination of different types of data can indicate a fisheries trend that would be undetectable when evaluated separately. Here we investigated changes in fisher's perceptions regarding overexploited and new target species in artisanal fisheries in a secular fishing village of the subtropical, southeastern Brazilian coast. We identified temporal changes in landings and in the mean trophic level (MTL) of high trophic level species (≥ 3.5 and >4) over 16 years. Fishers' knowledge revealed shifts in perception associated with years of fishing practice. More experienced fishers recognized a greater number of overexploited and new target species than fishers in the beginning of their careers. Landing data has revealed declining trends of 72% for five mesopredators species. Due to the overfishing of mesopredators, there was a shift in target species, towards fish that were previously discarded. Temporal changes in landings and in the MTL metric are concordant with previous reports on the overexploitation of species caught by local fishers. Our work reveals that multiple sources of information can be combined to establish historical baselines and improve the detection of change in marine ecosystems.https://doi.org/10.1371/journal.pone.0252391 |
| spellingShingle | Carine O Fogliarini Carlos E L Ferreira Jéssica Bornholdt Moysés C Barbosa Vinicius J Giglio Mariana G Bender Telling the same story: Fishers and landing data reveal changes in fisheries on the Southeastern Brazilian Coast. PLoS ONE |
| title | Telling the same story: Fishers and landing data reveal changes in fisheries on the Southeastern Brazilian Coast. |
| title_full | Telling the same story: Fishers and landing data reveal changes in fisheries on the Southeastern Brazilian Coast. |
| title_fullStr | Telling the same story: Fishers and landing data reveal changes in fisheries on the Southeastern Brazilian Coast. |
| title_full_unstemmed | Telling the same story: Fishers and landing data reveal changes in fisheries on the Southeastern Brazilian Coast. |
| title_short | Telling the same story: Fishers and landing data reveal changes in fisheries on the Southeastern Brazilian Coast. |
| title_sort | telling the same story fishers and landing data reveal changes in fisheries on the southeastern brazilian coast |
| url | https://doi.org/10.1371/journal.pone.0252391 |
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