Utilize este identificador para referenciar este registo: https://hdl.handle.net/10316/5320
Título: The influence of an extreme drought event in the fish community of a southern Europe temperate estuary
Autor: Martinho, F. 
Leitão, R. 
Viegas, I. 
Dolbeth, M. 
Neto, J. M. 
Cabral, H. N. 
Pardal, M. A. 
Palavras-chave: fish assemblages; ecological guilds; climatic changes; drought events; temperate estuary; Mondego
Data: 2007
Citação: Estuarine, Coastal and Shelf Science. 75:4 (2007) 537-546
Resumo: Between 2003 and 2006, a severe drought occurred throughout the Mondego River catchment's area, inducing lower freshwater flows into the estuary. As a consequence, both 2004 and 2005 were considered as extreme drought events. From June 2003 to June 2006, the fish assemblage of the Mondego Estuary was sampled monthly in five stations during the night, using a 2 m beam trawl. Fish abundance was standardized as the number of individuals per 1000 m2 per season and the assemblage was analyzed based on ecological guilds: estuarine residents, marine juveniles, marine adventitious, freshwater, catadromous and marine species that use the estuary as a nursery area. A total of 42 species belonging to 23 families were identified, with estuarine residents and nursery species dominating the fish community. Variations in the fish community were assessed using non-metric MDS, being defined as three distinct periods: summer and autumn 2003, 2004/2005 and winter and summer 2006. The main drought-induced effects detected were the depletion of freshwater species and an increase in marine adventitious in 2004/2005, due to an extended intrusion of seawater inside the estuary and a significant reduction in abundance during the driest period of estuarine resident species. Nevertheless, from the management point of view, it could be stated that although some variations occurred due to environmental stress, the main core of the Mondego Estuary fish community remained relatively unchanged.
URI: https://hdl.handle.net/10316/5320
DOI: 10.1016/j.ecss.2007.05.040
Direitos: openAccess
Aparece nas coleções:FCTUC Ciências da Vida - Artigos em Revistas Internacionais

Ficheiros deste registo:
Ficheiro Descrição TamanhoFormato
file4c2b65ae87db48d5a48e2baca47f9d88.pdf467.09 kBAdobe PDFVer/Abrir
Mostrar registo em formato completo

Citações SCOPUSTM   

96
Visto em 1/mai/2023

Citações WEB OF SCIENCETM

92
Visto em 2/mai/2023

Visualizações de página 50

546
Visto em 26/mar/2024

Downloads 20

1.025
Visto em 26/mar/2024

Google ScholarTM

Verificar

Altmetric

Altmetric


Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.