Analysis of self-reported discard information in Uruguayan industrial trawl fisheries
Discarding unwanted catches is a significant issue arising from marine fishing activities, with far-reaching socioeconomic and ecological consequences. Uruguayan fishery regulations fail to penalize discarding but mandate self-reporting, providing an opportunity to analyze the discard from the two...
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| Format: | Article |
| Language: | English |
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Instituto Oceanográfico da Universidade de São Paulo
2024-11-01
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| Series: | Ocean and Coastal Research |
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| Online Access: | https://journals.usp.br/ocr/article/view/231671 |
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| _version_ | 1849714071753981952 |
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| author | Luis Orlando Daniel García |
| author_facet | Luis Orlando Daniel García |
| author_sort | Luis Orlando |
| collection | DOAJ |
| description |
Discarding unwanted catches is a significant issue arising from marine fishing activities, with far-reaching
socioeconomic and ecological consequences. Uruguayan fishery regulations fail to penalize discarding but
mandate self-reporting, providing an opportunity to analyze the discard from the two Uruguayan industrial bottom
trawl fleets (shelf and coastal). By examining fishing logs, discard was estimated at 3,268 tons/year, accounting
for 6.5% of the total catch (9.1% for the shelf fleet and 3.7% for the coastal fleet), with no discernible temporal
trends for 2016, 2017, 2019, and 2020 nor significant seasonal variations in discard magnitude. Diversity, species
richness, and evenness of the discard varied between fishing seasons and years. The most discarded species
were Bassanago albescens in the shelf fleet and Brevoortia aurea in the coastal fleet. Both species showed
magnitudes indicating a potential for exploitation development. Discard per unit of effort was mapped by fleet,
enhancing the potential for discard information reconstruction for the area and thereby facilitating its inclusion in
ecological and economic assessments. Discard reports have proven to be a valuable source of information that
should be integrated into fisheries conservation and management initiatives.
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| format | Article |
| id | doaj-art-07f88fbcb4114aefb84f8c4ff802ffc8 |
| institution | DOAJ |
| issn | 2675-2824 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Instituto Oceanográfico da Universidade de São Paulo |
| record_format | Article |
| series | Ocean and Coastal Research |
| spelling | doaj-art-07f88fbcb4114aefb84f8c4ff802ffc82025-08-20T03:13:48ZengInstituto Oceanográfico da Universidade de São PauloOcean and Coastal Research2675-28242024-11-017210.1590/2675-2824072.23155Analysis of self-reported discard information in Uruguayan industrial trawl fisheriesLuis OrlandoDaniel García Discarding unwanted catches is a significant issue arising from marine fishing activities, with far-reaching socioeconomic and ecological consequences. Uruguayan fishery regulations fail to penalize discarding but mandate self-reporting, providing an opportunity to analyze the discard from the two Uruguayan industrial bottom trawl fleets (shelf and coastal). By examining fishing logs, discard was estimated at 3,268 tons/year, accounting for 6.5% of the total catch (9.1% for the shelf fleet and 3.7% for the coastal fleet), with no discernible temporal trends for 2016, 2017, 2019, and 2020 nor significant seasonal variations in discard magnitude. Diversity, species richness, and evenness of the discard varied between fishing seasons and years. The most discarded species were Bassanago albescens in the shelf fleet and Brevoortia aurea in the coastal fleet. Both species showed magnitudes indicating a potential for exploitation development. Discard per unit of effort was mapped by fleet, enhancing the potential for discard information reconstruction for the area and thereby facilitating its inclusion in ecological and economic assessments. Discard reports have proven to be a valuable source of information that should be integrated into fisheries conservation and management initiatives. https://journals.usp.br/ocr/article/view/231671Fishing logEco-systemic approachBest practicesHairy congerBrazilian menhaden |
| spellingShingle | Luis Orlando Daniel García Analysis of self-reported discard information in Uruguayan industrial trawl fisheries Ocean and Coastal Research Fishing log Eco-systemic approach Best practices Hairy conger Brazilian menhaden |
| title | Analysis of self-reported discard information in Uruguayan industrial trawl fisheries |
| title_full | Analysis of self-reported discard information in Uruguayan industrial trawl fisheries |
| title_fullStr | Analysis of self-reported discard information in Uruguayan industrial trawl fisheries |
| title_full_unstemmed | Analysis of self-reported discard information in Uruguayan industrial trawl fisheries |
| title_short | Analysis of self-reported discard information in Uruguayan industrial trawl fisheries |
| title_sort | analysis of self reported discard information in uruguayan industrial trawl fisheries |
| topic | Fishing log Eco-systemic approach Best practices Hairy conger Brazilian menhaden |
| url | https://journals.usp.br/ocr/article/view/231671 |
| work_keys_str_mv | AT luisorlando analysisofselfreporteddiscardinformationinuruguayanindustrialtrawlfisheries AT danielgarcia analysisofselfreporteddiscardinformationinuruguayanindustrialtrawlfisheries |