There is always a bigger fish!: Shaping Vouga’s watershed (Portugal) and its ichthyofauna in 1758

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorBastos, Rosário-
Autor(es): dc.creatorPereira, Olegário Nelson Azevedo-
Autor(es): dc.creatorFonseca, Luís Cancela da-
Data de aceite: dc.date.accessioned2022-02-15T14:10:48Z-
Data de disponibilização: dc.date.available2022-02-15T14:10:48Z-
Data de envio: dc.date.issued2021-12-21-
Data de envio: dc.date.issued2021-12-21-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/10400.2/11535-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/10400.2/11535-
Descrição: dc.descriptionConferência internacional realizada em Coimbra, de 8-10 de julho de 2020.-
Descrição: dc.descriptionFishing is an historical activity considered intangible cultural heritage. Among the several inherited traditions by fishermen communities, a profound knowledge, as far as the environment is concerned, exists. The natural legacy determines the quality of life of those communities (which can be threatened due to anthropogenic actions). Through an interdisciplinary analysis, this study identifies the natural and anthropogenic actions that influenced the changes in Vouga’s watershed, including the Aveiro lagoon, and respective ichthyofauna. Our focus is to elaborate an environmental interpretation from a synchronic approach. For the aforementioned purpose, fish species specified in the 1758 historical source “Parish Descriptions” were highlighted. Among the vernacular fish names listed, it was possible to find at least twenty species of fish from both freshwater and marine affinities. It is prudent to remark that in the year before the date just mentioned, the lagoon’s contact with the ocean was halted (thus causing a reduction of the water salinity). Could that have impacted the species that were declared in the “Parish Descriptions”? Certainly yes, because marine or brackish species were cataloged only in the lagoonal area near the sea. In fact, differences in the reported fish were found between the upstream watershed locations and the downstream lagoonal sites. Analysis of data supports the idea that salinity and fresh water may be the main influence for species distribution, either positively conditioning the presence of marine species or negatively, pushing freshwater species upstream. What is of notice is that there are documents that allude to an application for the king to request authorization to open a new inlet. The construction of dams, watermills and other kinds of interventions in rivers (Vouga and its affluents) impacted the watershed ichthyofauna. As a consequence, the species’ migration processes were thus influenced, namely those of anadromous and catadromous fishes, highly susceptible to anthropic activities (said interferences determine their absence or presence in these different water bodies). The heritage we gain from environmental history is fundamental to successfully understand and manage our current interventions when it comes to deal with nature in a harmonious way. It is essential to learn from what we have done to avoid mistakes. Let us not waste the steps of those who came before us!-
Descrição: dc.descriptioninfo:eu-repo/semantics/publishedVersion-
Idioma: dc.languageen-
Publicador: dc.publisherGreen Lines Institute for Sustainable Development 2020-
Relação: dc.relationhttps://biblios.ciencias.ulisboa.pt/detalhes/48162-
Direitos: dc.rightsopenAccess-
Palavras-chave: dc.subjectNorthwest portuguese coast-
Palavras-chave: dc.subjectEnvironmental history-
Palavras-chave: dc.subjectVouga’s fish species-
Palavras-chave: dc.subjectParish descriptions-
Palavras-chave: dc.subjectNatural heritage-
Título: dc.titleThere is always a bigger fish!: Shaping Vouga’s watershed (Portugal) and its ichthyofauna in 1758-
Tipo de arquivo: dc.typeaula digital-
Aparece nas coleções:Repositório Aberto - Universidade Aberta (Portugal)

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