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Silvano RAM, Pereyra PER, Begossi A, Hallwass G. Which fish is this? Fishers know more than 100 fish species in megadiverse tropical rivers. Facets (Ott) 2022. [DOI: 10.1139/facets-2021-0136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Ethnobiological studies on folk, common, or popular names that fishers use to identify fish can help improve fisheries monitoring and collaborations between fishers and researchers. This study investigates fishers’ knowledge (recognition, naming, and habitat use) on 115 and 119 fish species, respectively, in the Negro and Tapajos Rivers, two megadiverse rivers in the Brazilian Amazon, and investigates the relationship between such knowledge and fish importance to fisheries, fish abundance, and fish size. We also compared fishers’ perceptions on fisheries and fish abundance with literature data on fish harvests and fish sampling. We interviewed 16 fishers in 16 communities (one fisher per community, 8 communities along each river). These fishers recognized an average of 91 ± 10.4 species in the Negro River and 115 ± 7.2 species in the Tapajos River, but all fishers recognized 114 species in Negro and all species in Tapajos. The fishers’ knowledge of fish species was positively related to fishers’ perceptions on fish abundance, size, and importance to fisheries in the Negro, but only positively related to fish size in the Tapajos. Our results highlight the usefulness of fishers’ knowledge to providing data on use and cultural relevance of fish species in high diversity aquatic ecosystems.
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Affiliation(s)
- Renato A. M. Silvano
- Departamento de Ecologia e Programa de Pós-Graduação em Ecologia – IB, Universidade do Rio Grande do Sul (UFRGS), Rio Grande do Sul, Brazil
- Fisheries and Food Institute – FIFO , Rio de Janeiro, RJ, Brazil
| | - Paula E. R. Pereyra
- Departamento de Ecologia e Programa de Pós-Graduação em Ecologia – IB, Universidade do Rio Grande do Sul (UFRGS), Rio Grande do Sul, Brazil
| | - Alpina Begossi
- Fisheries and Food Institute – FIFO , Rio de Janeiro, RJ, Brazil
- Núcleo de Estudos e Pesquisas em Alimentação – NEPA, CAPESCA, UNICAMP, Campinas, SP, Brazil and PG Unisanta, Santos, SP, Brazil
| | - Gustavo Hallwass
- Fisheries and Food Institute – FIFO , Rio de Janeiro, RJ, Brazil
- Universidade Federal do Oeste do Pará (UFOPA), Pará, Brazil
- Current address: Instituto de Ciências, Tecnologia e Inovação, Universidade Federal de Lavras (UFLA), São Sebastião do Paraíso, Minas Gerais, Brazil
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