The Hydrological Cycle of the Lower Amazon in Brazil Determines the Variation in Local Fishing Patterns
Fishery catches on the Lower Amazon River were analyzed in relation to the hydrological cycle, temporal shifts in fishing effort, and the use of nets or lines in lakes and rivers. The study was based on a temporal series of catch data collected between January 1993 and June 2011. The variables analy...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Fishes |
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| Online Access: | https://www.mdpi.com/2410-3888/8/7/371 |
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| author | Maura da Silva Costa Furtado Joaquim Carlos Barbosa Queiroz Bianca Bentes Edson Koiti Kudo Yasojima Débora de Oliveira Thomaz Larissa da Costa Pinheiro Mauro Luis Ruffino Victoria Isaac |
| author_facet | Maura da Silva Costa Furtado Joaquim Carlos Barbosa Queiroz Bianca Bentes Edson Koiti Kudo Yasojima Débora de Oliveira Thomaz Larissa da Costa Pinheiro Mauro Luis Ruffino Victoria Isaac |
| author_sort | Maura da Silva Costa Furtado |
| collection | DOAJ |
| description | Fishery catches on the Lower Amazon River were analyzed in relation to the hydrological cycle, temporal shifts in fishing effort, and the use of nets or lines in lakes and rivers. The study was based on a temporal series of catch data collected between January 1993 and June 2011. The variables analyzed were the total catch, use of gillnets or lines, the environment targeted (lakes or rivers), and fishing effort. Temporal trends in the data series were analyzed using the Mann–Kendall test. An Analysis of Covariance (ANCOVA) was used to evaluate whether gillnet and line catches had independent effects on the catch data. Duncan’s test was applied to identify the groups (months) of means that were significantly different from each other. The majority of the catch landings were taken with gillnets (98.65%) in a lake environment (64.98%). The temporal series showed a significant decline over time in the gillnet catches from both lakes and rivers, as well as in fishing effort. The influence of the annual flood cycle was reflected in the catches and the flood pulse regulated fishing productivity patterns in the region. The fishers who adapt their activities to this flood pulse have good traditional knowledge of the environment. The results of the study also indicated that any changes in this dynamic system may impact traditional local fisheries and affect the economic wellbeing of local fisher populations. |
| first_indexed | 2024-03-11T01:05:14Z |
| format | Article |
| id | doaj.art-f78bd313f0db447da4e053522a1a88ed |
| institution | Directory Open Access Journal |
| issn | 2410-3888 |
| language | English |
| last_indexed | 2024-03-11T01:05:14Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fishes |
| spelling | doaj.art-f78bd313f0db447da4e053522a1a88ed2023-11-18T19:18:26ZengMDPI AGFishes2410-38882023-07-018737110.3390/fishes8070371The Hydrological Cycle of the Lower Amazon in Brazil Determines the Variation in Local Fishing PatternsMaura da Silva Costa Furtado0Joaquim Carlos Barbosa Queiroz1Bianca Bentes2Edson Koiti Kudo Yasojima3Débora de Oliveira Thomaz4Larissa da Costa Pinheiro5Mauro Luis Ruffino6Victoria Isaac7Núcleo de Ecologia Aquática e Pesca (NEAP), Universidade Federal do Pará, Av. Perimetral, 2651, Guamá, Belém 66077-530, BrazilInstituto de Geociências, Universidade Federal do Pará, Av. Augusto Correa, 01, Guamá, Belém 66075-110, BrazilNúcleo de Ecologia Aquática e Pesca (NEAP), Universidade Federal do Pará, Av. Perimetral, 2651, Guamá, Belém 66077-530, BrazilEstrada Pau Amarelo, Universidade Federal Rural da Amazônia, Vila Nova, Capitão Poço 68650-000, BrazilSecretaria de Estado de Meio Ambiente (SEMA), Av. Mendonça Furtado, 53, Centro, Macapá 68900-060, BrazilNúcleo de Ecologia Aquática e Pesca (NEAP), Universidade Federal do Pará, Av. Perimetral, 2651, Guamá, Belém 66077-530, BrazilSecretaria Permanente da Organização do Tratado de Cooperação Amazônica (SP/OTCA), SEPN 510, Bloco A, 3º Andar, Asa Norte, Brasília 70750-521, BrazilNúcleo de Ecologia Aquática e Pesca (NEAP), Universidade Federal do Pará, Av. Perimetral, 2651, Guamá, Belém 66077-530, BrazilFishery catches on the Lower Amazon River were analyzed in relation to the hydrological cycle, temporal shifts in fishing effort, and the use of nets or lines in lakes and rivers. The study was based on a temporal series of catch data collected between January 1993 and June 2011. The variables analyzed were the total catch, use of gillnets or lines, the environment targeted (lakes or rivers), and fishing effort. Temporal trends in the data series were analyzed using the Mann–Kendall test. An Analysis of Covariance (ANCOVA) was used to evaluate whether gillnet and line catches had independent effects on the catch data. Duncan’s test was applied to identify the groups (months) of means that were significantly different from each other. The majority of the catch landings were taken with gillnets (98.65%) in a lake environment (64.98%). The temporal series showed a significant decline over time in the gillnet catches from both lakes and rivers, as well as in fishing effort. The influence of the annual flood cycle was reflected in the catches and the flood pulse regulated fishing productivity patterns in the region. The fishers who adapt their activities to this flood pulse have good traditional knowledge of the environment. The results of the study also indicated that any changes in this dynamic system may impact traditional local fisheries and affect the economic wellbeing of local fisher populations.https://www.mdpi.com/2410-3888/8/7/371Amazoniaartisanal fisheryfishing groundsfishing techniquehydrological patternsustainable development |
| spellingShingle | Maura da Silva Costa Furtado Joaquim Carlos Barbosa Queiroz Bianca Bentes Edson Koiti Kudo Yasojima Débora de Oliveira Thomaz Larissa da Costa Pinheiro Mauro Luis Ruffino Victoria Isaac The Hydrological Cycle of the Lower Amazon in Brazil Determines the Variation in Local Fishing Patterns Fishes Amazonia artisanal fishery fishing grounds fishing technique hydrological pattern sustainable development |
| title | The Hydrological Cycle of the Lower Amazon in Brazil Determines the Variation in Local Fishing Patterns |
| title_full | The Hydrological Cycle of the Lower Amazon in Brazil Determines the Variation in Local Fishing Patterns |
| title_fullStr | The Hydrological Cycle of the Lower Amazon in Brazil Determines the Variation in Local Fishing Patterns |
| title_full_unstemmed | The Hydrological Cycle of the Lower Amazon in Brazil Determines the Variation in Local Fishing Patterns |
| title_short | The Hydrological Cycle of the Lower Amazon in Brazil Determines the Variation in Local Fishing Patterns |
| title_sort | hydrological cycle of the lower amazon in brazil determines the variation in local fishing patterns |
| topic | Amazonia artisanal fishery fishing grounds fishing technique hydrological pattern sustainable development |
| url | https://www.mdpi.com/2410-3888/8/7/371 |
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